Advances in agronomy volume 21

ADVANCES IN AGRONOMY VOLUME 21 CONTRIBUTORS TO THIS VOLUME F J CARLISLE D J GREENLAND R B GROSSMAN S B HEATH CHARLES E KELLOGG OLIVER E NELSON J M OADES ARNOLD C ORVEDAL W F RAYMOND G D SWINCER R W WILLEY ADVANCES IN AGRONOMY Prepared under the Auspices of the AMERICAN SOCIETY OF AGRONOMY VOLUME 21 Edifed by N C BRADY Roberts Hall, Cornell University, ithaca, New York ADVISORY BOARD R R DAVIS F A HASKINS W D KEMPER I.P MARTIN J W PENDLETON W A RANEY 1969 @ ACADEMIC PRESS N e w York and London COPYRIGHT ‘C 1969, BY ACADEMIC PRESS, INC ALL RIGHTS RESERVED N O PART OF THIS BOOK MAY BE REPRODUCED IN ANY FORM, BY PHOTOSTAT, MICROFILM, RETRIEVAL SYSTEM, OR ANY OTHER MEANS, W I T H O U T WRITTEN PERMISSION FROM T H E PUBLISHERS ACADEMIC PRESS, INC 1 Fifth Avenue, New York, New York 10003 United Kingdom Edition published by ACADEMIC PRESS, INC (LONDON) LTD Berkeley Square House, London W 1X 6BA LIBRARY OF CONGRESS CATALOG C A R D NUMBER50-5598 PRI N TED IN T H E UNITED STATES O F AMERICA CONTRIBUTORS TO VOLUME 21 Numbers in parentheses indicate the pages on which the authors’ contributions begin F J CARLISLE ( ) , Soil Conservation Service, United States Department of Agriculture, Hyattsville, Maryland D J GREENLAND (195), Depurtment of Agricultural Biochemistry and Soil Science, Waite Agricultural Research Institute, University of Adelaide, South Australia R B GROSSMAN ( ) , Soil Conservation Service, United States Department of Agriculture, Lincoln, Nebraska S B HEATH(28 11, Department of Agriculture, University of Reading, Reading Berkshire, England CHARLES E KELLOGG( I09), Soil Survey, Soil Conservation Service, United States Department of Agriculture, Washington, D.C OLIVER E NELSON* (17 l ) , Purdue University, Lafayetre, Indiana J M OADES(195), Department of Agricultural Biochemistry and Soil Science, Waite Agricultural Research Institute, University of Adelaide, South Australia ARNOLDC ORVEDAL ( 109), Soil Survey, Soil Conservation Service, United States Department of Agriculture, Washington, D.C W F RAYMOND( I ) , The Grassland Research Institute, Hurley, England G D SWINCER (195), Department of Agricultural Biochemistry and Soil Science, Waite Agricultural Research Institute, University of Adelaide, South Australia R W WILLEY t (28 I ) , Department ofAgriculture, University of Reading, Reading Berkshire, England *Present address: University of Wisconsin, Madison, Wisconsin t Presenr address: Makerere University College, Kampala, Uganda V This Page Intentionally Left Blank PREFACE This volume marks a significant milestone in the history of Advances in Agronomy The first 20 volumes were compiled under the very capable editorship of Dr A G Norman, now Vice-president for Research at the University of Michigan Mounting pressures of other responsibilities have prompted Dr Norman to ask to be relieved as editor of this serial publication; this is the first volume that does not carry his name It is fitting that we reflect briefly on the contributions he has made, not only to this work but to his profession as well As editor of Advances in Agronomy, Dr Norman has given 20 years of faithful service and leadership to agronomists and soil and crop scientists throughout the world His extraordinarily good judgment in the selection of authors and of subject matter has been largely responsible for the success of this publication His guidance to authors has helped both them and the quality of their papers He has seen Advunces in Agronomy grow from a struggling review journal of concern only to American scientists to a prominent review series with contributors and subscribers in many nations Dr Norman has found other ways to benefit his profession He has contributed directly as an active researcher in soil microbiology and in soil and plant biochemistry He has served as director of a large, interdisciplinary research unit and has enriched the education and training of many soil and crop scientists as well as biologists We are also indebted to Dr Norman for his service in scientific societies He served as vice-president and later president of the American Society of Agronomy during a very critical period in the Society’s history In addition, for a period of three years he served as chairman of the Division of Biology and Agriculture of the National Research Council Even though Dr Norman has resigned his editorial responsibilities, Advances in Agronomy fortunately will reflect his influence for some time to come The challenge of maintaining Dr Norman’s high standards and the broad subject matter coverage he provided is materially aided by the efforts of such men as the eleven who have contributed to this Volume I N C BRADY Ithaca, New York August, I969 vii This Page Intentionally Left Blank CONTENTS CONTRIBUTORS TO VOLUME 21 PREFACE vii V THE NUTRITIVE VALUE OF FORAGE CROPS W F RAYMOND I Introduction I The Components of Nutritive Value 111 The Digestibility of Forage Crops IV The Digestibility of Different Forage Species V The Voluntary Intake of Forages VI The Efficiency of Utilization of Digested Nutrients VII The Relationship between Forage Quality and Forage Yield VIII Forage Breeding for Improved Nutritive Value IX The Effects of Processing on the Components of Forage Nutritive Value X The Nutritive Value of Grazed Forage References 65 16 27 38 68 69 80 97 POTENTIALLY ARABLE SOILS OF THE WORLD A N D CRITICAL MEASURES FOR THEIR USE CHARLES E KELLOGGA N D ARNOL.D C ORVEDAL I Introduction I The Principle of Interactions in Soil Use 111 Higher Production from Existing Arable Soils IV New Potentially Arable Soils References 109 I12 122 140 169 GENETIC MODIFICATION OF PROTEIN QUALITY I N PLANTS OLIVERE NELSON I lntroduction I I The Genetic Control of Protein Structure 111 The Relative Constancy of Leaf Protein Composition ix 171 173 177 326 AUTHOR INDEX Crawford, W R., 13, 15,320 Crick, F H C., 175, 192 Cromwell, G L., 183, 185, 192 Czochanska, Z., 92, 99 D Daji, J A., 202, 231 Dalgleish, C E., 209, 231 Daniels, R B., 238,240,242,243,246,247, 248, 249, 250, 251, 252, 258, 259, 261, 273,274 Danielson, C E., 178,192 Dart, P J., 220,231 da Silva, J F C., 29,99 Davey, B G., 55,99 Davidson, E A., 223,225,231 Davies, W E., 54,56,99 Davis, C L., 45,46,47,48,99 Davis, L E., 84,99 Davis, R J., 196, 197,231 Davison, K L., 64,77,107,108 Dawes, C J., 220,231 Dea, I C M., 228,231 de Freitas, J., 70, I01 de Groot, T., 54,56,99 De Haan, Sj., 80,108 Dehority, B A., 7, 11, 12, 14, 16, 25, 71, 99,100,101,102 Deijs, W B., 57, 108 Deinum, B., 23, 24, 100 de Loose, R., 55,69, 100 Demarquilly, C., 17, 18, 29, 70, I , 72,73, 100 De Muelenaere, H J H., 182, 192 Denny, C S., 245, 246, 259, 262,273 Dent, J B., 288, 309, 321 Dent, J W., 13, 20, 22, 23, 32, 66, 97, 98, 100 Derbyshire, J C., 74,100 Deriaz, R E., 19,88,91,106 Dermine, P., 24, 101 Derting, J F., 275, 276 Deshpande, T L., 198,231 Dettmann, M G., 259,273 De Tyssonsk, E R., 229, 231 Dew], H., 196, 197, 198, 203, 204, 205, 208, 209, 211, 212, 216, 217, 218, 231, 232,233, 234, 235 Deuel, M., 196, 197, 19H, 204, 208, 212, 216, 217,233 de Wit, C T., 283,298,299, 304,307,320, 32 I Dias, C., 180, 194 Dick, A T., , 98, 100 Dickson, G R., 95, 100 Diebold, C H., 254, 275 Dijkstra, N D., 6, 100 Dische, Z., 223, 229, 231, 233 Dobie, J B., 72, 74, 100, 106 Donald, C M., 284, 291, 292, 293, 294, 315, 317, 320,321 Donefer, E., 4, 29, 35, 36 38, 99, 100 Donker, J D., 32, 92, 103 Dormaar, J F., 199, 204, 207, 209, 232 Dougall, H W., 54, 100 Doyle, J J., 90, 101 Drew, K R., 15, 100 Drysdale, A D., 18, 96, 99 Dubach, P., 196, 197, 203, 204, 205, 208, 209,212,216,218,231,232,233,234 Dudzinski, M L., 84,88,92,97,103 Duff, R B., 197, 207, 208, 209, 214, 216, 217, 219,232,235 Dumanovic, J., 14, 320 Duncan, W G., 289, 292,320 Dungan, G H., 285, 287, 288, 289, 290, 309, 310, 313, 314, 315.320 Dunham, J R., 65,100 Dunstone, J R., 229, 232 Duval, E., 56, 101 E Earle, F R., 178, 193 Echols, H., 177, 192 Edlefesn, J., 90, 99 Egan, A R., 37, 72,100 Eggum, B., 187, 192 Ehlig, C F., 60, 100 Ekern, A., I , 70, I00 Elder, J H., 267, 274, 27.5, 276 Ellington, A., 54, 56, 99 Elliott, F C., 25, 106 Elliott, R C., 25, 37, 45, / Ellis, W C., 82, 100, 102 El Sayed Osman, H., 50, 97 El-Shazly, K., 11, 25, 100, 104 327 AUTHOR INDEX Ely, R A., 7, loo Emerson, R A 180, 192 Emerson, W W., 198,231, 259, 273 Eng, K S., 87, 98 Engberg, C A., 242, 275 Engels, E A N., 13, Is, 100 Engleman, E M., 178, 180, 191 Ennik, G C., 298, 320 Enzie, F D., 93, 103 Epley, I B., 267, 273 Erskine, A J., 21 I , 232 Ervin, J O., 196, 197, 220, 221, 233 Essig, H W., 79, 100 Estermann, E F., 220, 232 Evans, L T., 204, 232 Evans, P S., 34, 100 Evans, R J., 180, 192 Eveleth, D F., 13, 106 F Fabry, J., 84, IOZ Faichney,G J.,45,46,48,52, ZOO Farazdaghi, H., 283, 300, 301, 302, 303, 304, 306, I , 320 Farmer, V C., 197, 219,235 Featherson, J R., 185, 192 Fehrenbacher, J B., 242, 243, 248, 251, 253, 255, 273 Finch, P., 202,203,207,208,2 I0,2 I , 12, 216, 217,221,231, 232 Fisher, L J., 76, 106 Fitzpatrick, E A,, 260, 273 Flatt, W P., 39, ZOO Fleming, G A,, 54, 56, I00 Flodin, P., 228, 232 Florence, E 83, 99 Flowers, R L., 267, 273 Folkins, L P., 22, 105 Fontenot, J P., 17,22,92,98,100 Ford, G W., 205,206,232 Forsyth, W G C., 196, 201,204,208,209, 214, 216, 217, 219, 222,232 Foster, A B., I , 220, 232 Fountaine, E R., 258,273 Fox, C J., 267, 273 Fox, C W., 62, 104 Francis, C M., 62, 100, 104 Francois, C., 224, 225, 232 Franek, M D., 229,232 Frankinet, M., 84, 101 Fransmeier, D P., 248, 273 Fransson, L-A., 229,231 Fraser, A C., 180, 192 Freer, M., 26, 32, 36, 52, 86, 99, 100, 104 Frey, K J., 180, 192 Fulkerson, R S., 22, 104 G Gaillard, B D E., 7, 8, I00 Galberry, H S., 267, 274 Gallagher, C H., 63, ZOO Gamble, E E., 238, 240, 246, 247, 249, 259, 261,273 Gardell, S., 229,231 Garen, A., 174, 177, 192 Garen, S., 177, 192 Garrett, W N., 74, 100 Garrigus, U S., 53, 99, 102 Gascoigne, J A,, 219,232 Gascoigne, M M., 219, 232 Geoghegan, M J., 196,232 George, J M., 56, 62, 97, 102 Gerloff, E D., 177, 192 Gibbons, R A., 223, 227,232 Gile, L H., Jr., 249, 254, 273 Gilfillan, E W., 172, 179, 192 Gill, W R., 251, 273 Gladstones, J S., 58, ZOO Glenday, A C., 59, 92, 98, 105 Glenn, R C., 248,273 Gomide, J A., 29, 99 Gonzalez Gonzalez, V., 87, 100 Goodall, D W., 292, 315, 320 Goodlett, J C., 246, 250, 260, 262, 264, 273, 274 Gopalan, C., 171, 189, 192, 193 Goplen, B P., 65, 103 Gordon, C H 74, 100 Gottschalk, A., 223, 224, 232, 234 Graham, N McC., 39, 72, 73, 91, 98, 100, 101 Granath, K A., 228, 232 Graveland, D N., 200, 204, 232 Gray, F V., 48, 107 Greacen, E L., 221, 234 Green, J O., 66, 67, 101 Green, T W., 267, 274 Greenhalgh, J F D., 5, 33, 83, 85, 92, 99, 101 328 AUTHOR INDEX Greenhill, W L., 70, 101 Greenland, D J., 156, 170, 196, 197, 198, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 213, 214, 215, 216, 217,218,220,221,231,232,235 Greenwood, C T., 227, 228,231, 232 Grieve, C M., 29, 101 Griffiths, E., 197, 232 Griffiths, T W., 48, 101 Grimes, R C., 47, 87, I01 Grossenbacher, K., 220, 233 Grossman, R B., 239, 242, 243, 246, 248, 25 I , 252,253,255,257,258,272,273 Grunes, D L., 56, 101 G ~ p t a U , C., 196,200, 202, 208,232 H Hagberg, A., 187,192 Hamilton, F J., 87,103 Hamilton, H A., 24,101 Hamilton, J W., 59,60,101 Hammer, K C., 220,234 Hammes, R C., 95,98 Handreck, K.A., 10,34,60,102 Hanel, D J., 14,107 Hanson, C H., 62,101 Harada, T., 205,231 Hardison, W A., 84,95,98, I05 Harker, V G., , 13,105 Harkness,R D., 17, 18, 19,101 Harlan, J R., 94,101 Harmon, A B., 267,273 Harmsen, G W., 220,233 Harper,A E., 182,192 Harpstead, D D., 184,192,193 Harris, C E., , 13, 17, 18, 19, 20, 24, 28, 29, 38, 66, 75, 76, 79, 80, 84, 85, 101, 103,104,105 Harris, I F., 179, 193 Harris, L E., 90, 99 Harris, P M., 300,301,302,303, 304,306, 11,320 Harris, R F., 196, 198, 22 1, 222, 233 Hartree, E F., 224, 233 Harvey, P N., 315, 316,320 Hatfield, E E., 53,99, 102 Hawkins, G E., 25, I01 Haworth, W N., 196, 224, 233 Hayes, M H B., 202, 203, 207, 208, 210, 211, 212, 213, 214, 216, 217, 221, 231, 232 Head, M J., 26, I01 Heady, H F., 90, I07 Healy, W B., 60, 101 Heaney, D P., 28, 29, 38 71, 101 Hearn, W E., 265,273 Hedin, L., 56, 101 Heidelberger, M., 229, 23.3 Heinegard, D., 229, 231 Heintz, R., 174, 193 Helinski, D R., 174, 192 Hemingway, R G., 58,103 Hemken, R W., 72.98 Hennaux, L., 84,101 Henry, E F., 275,276 Henry, J., 163, I70 Hercus, J M., 91,101 Hibbs, J W., 1,32,53,99 Hight, G K., 33,101 Hill, D E., 255,265,268,273,275 Hill, M K., 91, 99 Hill, R L., 178,192 Himes, F L., 201, 202, 207, 208, 209, 12,214,216,2 17,233,235 Hinders, R G., I , 101 Hiridoglow, M., 24,101 Hirst, E L., 224,233 Hocevar, B.J.,211,233 Hodge, R W., 90,101 Hodgson, J., 92,101 Hodgson, J F., 60,97 Hoehne, E., 87, I01 Hoffman, H., 63,100 Hogan, J P., 29, 37, 45, 48, 50, 98, 101, 105,107 Hogue, D E., 5,102 Hole, F D., 238, 247, 259, 260, 262, 263, 264,274 Holley, R W., 174,192 Holliday, R., 282, 283, 284, 287, 289, 290, 292, 295, 296, 297, 298, 299, 300, 301, 305, 308,3 10,320 Holmes, J C., 33,101 Holt, E C., 94,106 Homb, T., 16,101 Honkanen, E., 65,101 Hopson, J D., 12,101 AUTHOR INDEX Horn, M E., 249, 250, 251, 253, 256, 258, 260,273,275 Horton, D., 204,227,228,233 Hoveland, C S., , I , 97 Howard, M., Jr., 246,272 Howe, E E., 172 179,192 Howe, F B., 265,273 Howe, W M., 53.98 Hozumi, K., 291, 292, 294, 301, 302, 310 317,320 Huddleston, J H., 254,255,264,265,273 Huddleston, J S., 245,273 Hudson H G., 287,297,320 Hughes, M., , Hughes, R., 22,107 Hull, J P D., 266,273 Hulyalkar, R K., 225,234 Humbert, R P., 248, 251, 252, 254, 256, 259,260,274 Hungate, R E., 49, 102 Huston, J E., 81 102 Hutcheson T B., Jr., 246 247, 248, 256 73 Hutchings, R J., 63, 104 Hutton, E M., 64,102 Hutton, J B., I , 32,85,102 I Ignatieff, V., 113 148,169 Ingalls, J R., 3,35,102 Ingleton, J W 84,104 Ingram, V M., 175,192 Irvin, H M., 40,104 Ivarson, K C., 200,225,233,235 J Jackobs, J A., 289,320 Jacob, F., 176, 177.192 Jacobson W C., 74,8 I , 82,100,102 Jacoby, Erich H 135,169 Jager, G., 220,233 Jahn, J R., 72,102 James, W H., 106 Jansen, G R., 172, 179,192 Jaques, L B., 65, 103 Jarrige, R., 7,102 Jarvis, R H., 292,310,320 Jayrne, G., 202,233 Jeanloz, R W., 223,228,233 329 Jenny, H., 220,233 Jensen, E H., 88,90,106 Jermyn, M A., 229,232 Jha, P P., 246, 247, 248, 249, 250, 252, 256,260,262,273,274 Jimenez,J R., 179, 185, 186,192 Johansen, P G., 224,225,233 Johns, A T., 64,102 Johnson,HarryG., 118, 121, 170 Johnson, J C., 267,274,276 Johnson, R R., 7, I I , 12, 14, 16, 25, 52, 53,71,79,99,100,101, 102, 106 Johnston, T D., 34,102 Jones, D., 197,220,232,233 Jones, D I H., 22.59.97.107 Jones, G B., 48,107 Jones, H E H., 62,105 Jones, J H., 94,106 Jones,J K N.,2I 1,232 Jones, J R., 5,102 Jones, L H., 306,307,320 Jones, L H P., 10,34,60,97, 102, 107 Jones,Q., 178,180, 193,194 Jones, U I., I , 102 Jordan, R M., 84.99 Josefsson, E., 190,192 Journet, M I , 72, 73, 100 Julen G., 68, 102 Jung G A., I , 14 29, 33 47, 105 Jurion, F., 163,170 Jury, K E., 85, 102 K Kahrein, R B., 267, 274 Kamstra, L D., I I , 72, 102 Kane, E A,, 17,23,8 1,82,102 Kapelle, D., 80 108 Karlsson, K.-E., 187,192 Karn, J F., I , 102 Karr, M R., 53.102 Kates, K C., 93,103 Kaufmann, R W 84,105 Kay, M., 36,52, 102 Keane, E., 76,103 Keefer, R J , 20 I , 207,208.2 I , 19,233 Keller, K R., 288, 10,320 Kelley, E G 177,192 Kellogg, Charles E., 112, 142, 149, 155, 156, 161,170, 267.272 330 AUTHOR INDEX Kernp, A., 55,56,57,102,108 Kernp,A W 84,85,105 Kemp, C D.,49,84,85,103,105 Kendall, W A., 64,102 Kennedy, G S., 57,102 Kennedy, W K., 16,17,23,105 Kenner, J., 205,233 Kertesz, Z I., 228,233 Kewning, J A., 54,56,99 Kilmer, V J., 244,275 Kim, T., 291,292,293,294,295,296,298, 299, 300, 301, 302, 305, 306, 310, 317, 18,320,321 Kirby, K W., 197,204,207,208,2 I I , I 6, 217.2 18,220,235 Kivimae, A., 5,102 Knapp, John, 110, 170 Knight, R., 68,102 Knolek, W F., 180,194 Knox, E G., 239, 247, 248, 252, 256, 257, 258,259,272, 274 Koch, J H., 63,100 Kohler, G O., 62,104 Kononova, M M., 204,219,233 Korner, A., 174,192 Koyama, H., 302,3 18,320 Kozak, A S., 53,104 Krusekopf, H H., 243,257,274 Kubota, J., 60,100 Kvist, 8.E., 228,232 Laby, R H., 63,102 Lacey, J., 70,102 Lackman, D B., 209,234 Lager, A,, 68,102 Lambourne, L J., 59, 84, , 86, 87, 91, 97,100,102 Lamond, D R.,61,62,97,104 Lancaster, R J., 33,84,IOI, 102 Landry, J., 185,193 Lang, A L., 285, 287, 288, 289, 290, 313, 14,320 Lang, F., 202,233 Lang, R W., 33, I01 Langlands, J P., 56,84,86,88,89,91,102 Lapham, J E., 266,274 Lapham, M H., 266,274 Large, R V., 92,93,94,102,106 Lauterbach,C W.,211,235 Leavenworth, C S., 179,193 Lees, H., 204,231 Lefevre, C F., 11,102 Leigh, J H., 90, 102 Leighty, R G., 267,273 Leighty, W J , 267,274 Leitch, I., , 102 LeMare, P H., 159, 170 Leng, R A,, 48, 103 Lesperance, A L., 88,90,106 Levy-Bruhl, L., 168, I70 Lewis, D., t , Lewis, H G., 265,273 Lewis, R J., 246,247,248.273 Li, J C R., 288,3 10,320 Liener, I E., 189,192 Lima, I H., 177,192 Linares, F., 184,193 Lindahl, I L., 93,103 Lindberg, B., 228,231 Lindner, H R., 61,103 Lindstrom, G R., 198,232 Linton, J H., 65,103 Little, C O., I , 103 Lloyd, L E., 4,29,35,36,38,99 Lofgreen, G P., 74,100 Logan, V S., 5,105 Lombard, P E., 87,103 Loosii, J K., 53, 104 Loper, G M., 62,103 Love,T R., 267,274 Lowe, C C., 18,103 Lowe, L E., 222,233 Ludwig, T C., 60,101 Lugg,J W H., 177,192 Lusk, E., 261,273 Lusk, J W., 12,103 Lyford, W H., 245, 246, 250, 254, 259, 260,262,264,273,274 Lynch, D L., 197,200,202,204,207,209, 211,221,231,232,233,235 Lynch, J J 56,102 M McArthur, J M., 63,64,103 McCalla, T M., 196,233 McCarrick, R B., 51,76,103 McClure, K E., 52,53,79,102,106 McCracken, R.J., 238, 242,243.246.247, AUTHOR INDEX 248, 249, 250, 251 252 258, 259, 261, 273,274 McCroskey, J E., 73, 103 McCullough, M E 28 45, 46, 47, 76, 99, 103 McDonald, A N C., 82.97 McDonald, I., 5,83,85,91,99,101,102 McDonald, I W 41, 49, 50, 52, 55,56,58, 59,60,61,8 1,91,103 McDonald, P., 74,75,103, 105 McDougall, B M., 220,234 McGowan, M., 13, 15.97 McGuire, R.L., 81,103 Mcllroy, R.J., 24,47,103 McKeague, J A., 257,258,274 McLaren, A D., 220,232 MacLean, D W., 246,262,264,274 MacLeod, N A,, 36,52,102 McLuhan, M., 168,170 MacLusky, D S., 92,103 McManus, W R.,84,87,103 McMeekan, C P., 94,103 McMichael, S C., 190,192 McNaughton, M J., 62,105 McNutt, E J., 267,274 Macpherson, A., , 103 MacPherson, H T., 75,103 Maguire, M F., 49,104 Mahler, H R., 174,192 Malgren, R.C., 167,169 Marbut,C F., 257,266,267,274 Margoliash, E., 178,192 Marshall, R D., 204, 223, 224, 225, 232, 233,234 Marshall, S B M., 50.5 I , 97 Marten G C., 32,84,92,99, 103 Martin, C M., 84,105 Martin, J K., 205,233 Martin, J P., 196, I97,2 19,220.22 I , 233 Martin, Kirk, 110, 170 Martz, F A., 53.98 Mathieson, J M., 229,234 Matthews, E D., 267,274, 276 May, P F., 87,101 Mayaudon, J., 19.233 Maynard, L A., 7,90,99 Mead, R.,3 18,320 Meek, D C., 106 Mehta, N C., 196, 197, 198, 203, 204,205, 33 208, 211, 212, 216, 217, 232, 233, 234, 235 Mellin, T N., 17,103 Melville, J., 2,103 Melvin, J F., 70,103 Mendel, L., 179,193 Mercer, F V., 220,231 Meredith, W R., 18,103 Merilan, C P., 53.98 Mertz, E T., 173, 178, 180, 181, 182, 183, 188,191,192,193 Methvin, C., 267,273 Meyer, J H., 74,100 Meyer, R M., 73,107 Meyers, S M., 184,192 Miles, D G., 29,103 Miles, J T., 12,103 Milford, R., 17, 18, 19, 20, 28, 29, 36, 66, 103,104 Milfred, C J., 263,274 Miller, F P., 248,249,250.25 1,274 Miller, P A., 190,193 Miller, R W., 180,194,257,258,274 Miller, T B., 7,9,103 Millett, M A., 225,234 Millington, A J., 62,100 Miltimore, J E., 63,64,103 Minson, D J., , 7, 17, 18, 19, 20, 24, 28, 29, 36, 38, 49, 66, 71, 72, 81, 82,85,10I, 102,103,104,105 Mitchell, R L., 55,58,99, 104,225,234 Mitscherlich, E A., 291,320 Moe, P W., 13, 39, 104 Moggridge, R C G., 225,233 Mohan, V S., 189, 193 Moir, R J., 37, 59, 72, 100, 104 Moisio, T., 65, 101 Mollenhauer, H H., 220, 233 Monod, J 176, 177, 192 Montgomery, E., 305, 320 Montgomery, R., 223, 224,235 Moore, L A., 7, 8, 17, 23, 40, 71, 74, 75, 76,8 I , 82,100, 102, 104,107 Moore, R M., 63,104 Moore, W E., 225, 234 Morley, F W H., 62, 104 Morre, D J., 220, 233 Morrison, F B., 4, 104 Mortensen, J L 201, 202, 207, 208, 209, AUTHOR INDEX 332 210, 211, 212, 214, 216, 217, 218, 219, 233, 235 Morton, R K., 175, I Moseman, A H., 119, 170 Mosse, J., 179, 185, 186, 187, 188, 193 Mott, G O., 11, 29, 30, 31, 94, 99, 104 Mottershead, B E., 29, 31, 106 Moule, G R., 61, 104 Moureaux, T., 185,193 Mowat, D N., 22, 68, 104 Moxon, A L., 11,105 Mueller, P., 262, 263, 264, 274 Mulham, W E., 90, 102 Muller, M., 197, 198, 204, 208 21 I , 212, 216,217,233, 235 Muller-Vonmoos, M., 205, 234 Munck, L., 173,193 Mundie, C M., 200, 225,231 Munro, H N., 173, 193 Murdoch, J C., 37, 77, 9 Murphy, R P., 16, 17, 23, 105 Murphy, W E., 54, 56, 100 Murray, M G., 48,98 Murray, S., 14, 105 Myrdal, G., 129, 170 N Naga, M M A., 11,104 Nagarajan, V., 189,193 Naismith, W E F., 188, I Nance, W E., 177,193 Nash, M., 168,170 Nash, M J., 1,70,74,76,79,80,107 Neeley, J A., 242,243, 245,250,274, 278, 279 Neely, W B., 229, 233 Nehring, K., 189, 193 Nelder, J A., 292, 299, 300, 301, 302, 303, 306,310, 311, 312,320 Nelson, A B., 87, 98 Nelson, E., 173, 180, 181, 182, 183, 185, 193 Nettleton, W D., 238, 242, 243, 246, 247, 248, 249, 250, 251, 252, 254, 258, 259, 26 1,273, 274 Neuberger, A., 204, 223, 224, 225, 232, 233,234 Neumark, H., 75,104 Newton, J E., 62,104 Newton-Hearn, P A., 1,232 Nijkamp, H J., 8,43,98,100 Nikiforoff, C C., 248, 249, 25 I , 252, 254, 256, 257, 259, 260,274 Noller, C H., 14, 104 Norman, A G., 7,104 Northcote, D H., I I , 225, 228, 231, 233, 234 Norton, H W., 53, 102 Nye, P H., 156,170 Oades, J M., 196, 197,200,201,202,203, 204, 205, 206, 207, 208, 209, 210, 211, 213, 214, 215, 216, 217, 218, 220, 222, 226,232,234,235 O’Donovan, P B., 29, 30,31, 104 Ogawa, H., 291, 292, 293, 294, 302, 17, 18,320 Ogston, A G., 210, 218, 234 Okamoto, M., 75, 76, 107 Olfield, J E., 62, 104 Olney, H O., 200,202,207,2 11,233 Olson, G W., 238,246, 247,248,25 1,252, 254, 255, 259, 260, 262, 263, 264, 265, 273, 274 Oltjen, R R., 53, 104 O’Neal, A M., 255, 274 Ongun, A., 177, 193 Oram, L R N., 63,104 Orth, A,, 77, 104 Ory, R L., 178, 180,191, Osborne, T B., 178, 179,193 Osbourn, D F., 29, 30, 32, 34, 36, 77, 78, 101, 104 Oser, B L., 189, 193 O’Shea, J., 13, 49, 104 Oslage, H J., 80, 106 O’Sullivan, M., 57, 104 Overend, W G., 224, 234 Owen, F G., 71, 101 Owen, J B., 84, 104 P Packett, L V., 29, 30, 31, I04 Pacsu, E., 235 Page, H J., 113, 148, 169 AUTHOR INDEX Paladines, L., 73, 104 Parsons, J W., 200,203,207,209,2 I I , I 4, 216, 217, 222,234 Pauker, G L., 169, 170 Paul, E A., 197, 199, 204, 207, 209, 21 I , 230 Paulson, G D., 60, 104 Pearce, G R., 86, 104 Pearce, R H., 229, 234 Pearson, C S., 268, 274 Pelzer, H., 220, 235 Pendleton, J W., 285, 287, 288, 289, 290, 309, 310, 313, 314, 315,320 Pendleton, R F., 275, 276 Penick, M., 314, 320 Penny, D H., 129,170 Percival, E., 225, 234 Perera, B P M., 209, 234 Perez, C B., 53,104 Perkins, S O., 266,274 Perold, S., , 107 Perry, M B., 225.234 Peters, J E., 180, 194 Peterson, P J., 60, 105 Pettiet, J V., 247, 249, 25 1, 255, 26 I , 274 Pfost, H B., 73, 107 Phillips, P H 73 108 Pickett, R A., 183, 184, 192, 193 Pigden, W J., 22, 28, 19, 38, 71, 101, I05 Pigman, W., 224,228,234 Pilgrim, A F., 48,107 Pinkard, R W., 196,233 Piva,G., 183,193 Platt, D., 228,234 Playne, M J., 74,105 Plice, M J., 32,105 Plumlee, M P., 29, 30.3 I , 104 Pope, A L 60,73,104,108 Pope, G S., 62, I05 Pope, L S., 73,87,98,103 Porter, H C., 275,276 Poulton, B R., 17,103 Pradilla, A., 184,192, I Pratt, A D., 1,32,99 Prestes, P J., 14,104 Presthegge, K., 74,75,105 Pritchard, G I., , 22, 28, 29, 71, 101, 105 333 Proffitt, W H., 267, 274 Puckridge, D W., 15, 321 Putter, J., 281, 321 Q Quicke, G V., I , 105 Quirk, J P., 197, 198,231,232,235 R Rae, A L., 92,105 Rahman, S., 228,231 Raison, J K., 175,193 Raymond, W F., 2, 3, , 13, 14, IS, 17, 18, 19, 20, 22, 24, 27, 28, 29, 31, 38,44,45, 48, 66, 68, 69, 74, 75, 76, 79, 80, 81, 82, 84, 85, 86, 87, 94, 95, 96, 99, 101, 103, 104, 105 Reardon, T F., 85, 86, 91, 102 Reddy, M C., , 0 Redmond, C E., 242,275 Reed, W D C., 25, , , Rees, C W., 224,234 Reestman, A J., 307,321 Reichstein, T., 224, 234 Reid, C S W., 63, 105 Reid, G W., 33, 91, 92, 101, 102 Reid, J T., 13, 16, 17, 18, 23, 39, 73, 80, 8l,84,103,104,105 Reid, R L., 11, 12, 14, 33, 37, 45, 47, 98, 105, 106 Reid, R S., 48, 98 Reissig, H., 189, 193 Reith, J W S., 58, 104, 105 Rennie, D A., 197, 199,204,207,209,2 I 1, 18,230,234 Reynolds, J D., 315, 316, 321 Rhykerd, C L., 14, 104 Rhyne, C L., 190, 193 Richards, C R., 84, 106 Richards, F J., 299, 302, 321 Richards, G N., 205,233 Richards, S J., 196, 197, 220, 233 Ridley, J R., 88, 90, 106 Riewe, M E., 94, 106 Ritossa, F M., 176, 193 Robards, G E., 87, 106 Roberts, R C., 188, 193, 244,275 Roe, R., 29, 1, 106 334 AUTHOR INDEX Rogers, H H., 66, 68, 106 Rogers, H J., 220, 223,234 Rogler, J C., 185, 192 Rohr, K., 46,47, 107 Ronning, M., 72, 106 Rook, J A F., 41,44,45,76,98,106 Rose, R C., 266, 275 Rosenfeld, I., 59, 106 Rossiter, R C., 62, 106 Roulet, N., 205, 209, 12, 234 Rovira, A D., 220,22 1,234 Rowland, S J., 47, 97 Rudman, J E., 20, 106 Rumsey, T S., 14, 104 Russell, E W., 219, 234 Rutledge, E M., 249, 250, 251, 253, 256, 258, 260,273,275 S Sadgopal, A., 174,193 Saeman, J F., 225,234 Salam, A., 204, 205, 235 Salamini, F., 183, 193 Salomon, M., 199, 209, 234 Salton, M R J., 220, 234 Samtsevich, S A., 219, 220, 234 Sandegren, E., 178, I Sanderson, G W., 209,234 Santi, E., 183,193 Sarria, D., 184, 192 Sastry, L V S., 187, 194 Satter, L D., 50, I06 Saunt, J., 284, 321 Sawers, D., 1, 70, I00 Schaadt, H., 52, 53, 106 Schillinger, J A., 25, 106 Schmid, K., 223,234 Schneider, H., 5, 106 Scholl, J M., , 13, 97 Schukking, S., 80, 108 Schultz, I W., 170 Schulz, E., 80, 106 Schuphan, W., 173,193 Schweet, R., 174, 193 Schwendinger, R B., 201, 202, 208, 210, 218,233 Schwerdtfeger, E., 189, Scott, F M., 220,234 Scott, H W., 11, 16, 100, 105 Scott, J E., I , 228, 234 Scragg, W., 315, 316,320 Scrivner, C L., 243,248,249,260,275 Seay, W A., 246,247,248,273 Seif, R D., 15,320 Sevag, M G., 209,234 Sequeira, J S., 224,234 ShalTer, M E., 249,260,275 Shafizadeh, F., 224,234 Shantz, H L., 244, 275 Sharpe, P R., 288, 309,321 Shaw, J C., 40,104 Shaw, K., 221,231 Shearin, A E., 268, 275 Shefner, A M., 226,231 Shelton, D C., 11, 12, 105, 106 Shepherd, R A., 196, 197 220, 221,233 Sheppard, D E., 190, 193 Shepperson, G., 70, 106 Shibles, R M., 315, 321 Shinozaki, N., 292, 293,294,295,296,298, 299, 300, 301, 302, 305, 306, 317, 318, 320,321 Shorland, F B., 92, 99 Shumard, R F., 13,106 Simmonds, R G., 202,203, 207, 208, 210, 21 I , 12,2 13,214,2 16,217,232 Simonart, P., 219,233,235 Simonson, R W., 237, 238,275 Sinclair, D P., 33, 101 Siu, R G H., 21 9,235 Slack, S T., 16, 17, 23, 105 Sly, D A., 188, 194 Slyter, L L., 53, 104 Smart, C L., 227,235 Smart, V W., 190, 193 Smart, W W G., 25, 45, 46, 47, 203,106 Smith, A K., 188, 194 Smith, C A., 19, 24, 106 Smith, C R., Jr., 178, 193 Smith, E L., 178, 192 Smith, F., 223, 224, 235 Smith, F H.,190, 193 Smith, G D., 261, 267,275 Smith, H C., 266, 267, 273, 275 Smith, J C., 94, 106 Smith, R M., 252, 255, 256, 262, 265,275 335 AUTHOR INDEX Smolens, J., 209,234 Snow, C P., 168,170 Sonneveld, A,, 33, 106 Sowden, F J., 196, 200, 202, 208, 225, 232, 233, 235 Spaeth, J N., 254,275 Spedding, C R W., 3, 13, 24, 92, 93, 94, 102, 105,106 Spedding, D J., 60, 105 Spiegelman, S., 176, 193 Spiro, R G., 223, 225, 235 Sprague, G F., 180, 192 Srikantia, S G , 171, 192 Stacey, M.,196, 202, 203, 207, 208, 210, 211, 212, 213, 214, 216, 217, 220, 221, 223,231, 232, 233, 235 Stahmann, M A,, 172, 177, 192, 193 Stanley, N W., 25, 106 Stephen, I., 248, 25 1, 273 Stephens, D F., 73, 103 Stern, W R., 17,321 Stevenson, F J 204,205,231 Stevenson, L., 219, 235 Stewart, D R M., 91, 106 Stobbe, P., 200, 232 Stocking, C R., 177, 193 Stoddart, J F., 228,231 Stojanovic, B J., 197, 198, 235 Stout, P R., 56, 57, 101, 106 Streeter, C L., 87, 101 Streuli, H., 197, I98,2 I I , 233,235 Sullivan, J T 6, 7, 9, 98, 106 Swaby, R J., 196,235 Swift, R W., 106 Swincer, G D., 196, 197, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 213, 214, 215, 216, 217, 218, 220, 222,234, 235 Sykes, J F., 74, 75, 76, 104, 107 Synge,R L M., 50, 51,97, 106 Szirmai, J A., 229, 231 T Tadmor, A., 75, 104 Tavernier, R., 26 , 275 Tayler, J C 19.20,88.91,106 Taylor, D C., 268, 275 Taylor, M W., I I, 98 Tello, F., 189, 193 Terry, R A., 8, 12, 14, 15, 19, 20, 21, 22, 25, 26, 29, 30, 31, 32, 34, 36, 37,42,45, , , 1,99, 104, 105, 106, 107 Tesar, M.,3,35,102 Theron, E P., 34,107 Thomas, A E., 242, 243, 267, 274, 275, 277,278 Thomas, C J., 265,275 Thomas, G D., 73,107 Thomas, J W., 3, 35, 14, 75, 76, 102, 104, 107 Thomas, R L., 200, 201, 207, 208, 209, I, 12,214,2 16,2 17,235 Thompson, A., 224,235 Thompson, R., 285,286,300,307,'320 Thomson, D J., 29, 30, 32, 34, 36, 42, 47, 104, 107 Thorne, J L., 90, 99 Thornton, R F., 24, 107 Thorp, J., 267,272, 275 Threlkeld, G., 275, 278 Tilley, J M A., 8, 12, 14, 15, 19,20,21,22, 25, 26, I , 36, 37, 42, 45, 68, I , 99, 106, 107 Tillman, A D., 53,99,106 Tinsley, J., 200, 203, 204, 205, 207, 209, 21 I , 14,2 16,217,220,222,234,235 Tobin, J., 76,103 Toogood, J A,, 197,235 Tookey, H L., 63,108 Topps, J H., 25,37,45,107 Torell, D T., 87,90,97,98,107 Torriani, A., 177, I92 Tossell, W E., 22, 104 Trimberger, G W., 16, 17, 23, 105 Troelsen, J E., 14, 24, 34, 102, 107 Truog, E., 197, 199, 204, 209, 218, 234 Tuckett, S E., 184, 192 Turk, K L., 16, 17, 23, 105 Turner, J H., 93, 103 Tyler, M C., 267, 274 Tyrrell, H F., 13, 39, 104 U Ulyatt, M J., 47, 76, 98, 107 Underwood, E J., 54, 57, , 107 336 AUTHOR INDEX V Vanden Berg, G E., 25 1, 273 Vanderford, H B., 249, 260,275 Van der Merwe, F J., 13, 15, 58, 100, 107 Van Dyne, G M., , , van Es, A J H., 23, 24, 43, 98, I00 VanEtten, C H., 180,194 Van Niekerk, B D H., 73, 104 van Schalkwyk, A., 87,103 Van Soest, P J., 6, 8, 9, 10, 13, 23, 24, 25, 29, 30, 32, 34, 49, 100, 107 Vercoe, J E., 86, 104 Veron, A., 181, 183, 185, 193, 194 Vetter, R L., 13, 22, 107 Viets, F G., 283, 320 Vinas, E., 180, 194 Virtanen, A I., 53, 107 Virupaksha, T K., 187, 194 Vogel, H J., 176, 194 Vogel, R H., 176, 194 von Kaufmann, W., 46, 47, 77, 104, 107 W Wainman, F W., 27, 28, 32, 43, 98 Waite, R., 39, 97 Walborg, E F., 224, 235 Walker, J L., 248,273 Walker, T., 36, 52, 102 Waller, G., 73, 103 Walshe, M J., 94, 103 Walters, R J K., 22, 29, 55, 97, 103, 107 Ward, D N., 224,235 Ward, G., 65, I00 Wardrop, I D., 60, Warne, L G G., 284, 292, 293, 294, 321 Warner, A C I., 41, 48, 107 Warner, R G.,53,77,104,107 Watkin, B R., 87,101 Watson,J H., 197, 198,235 Watson, J N., 18, 96, 99 Watson, S J., 51, 70, 74, 76, 79, 80, 107 Watt, J A., 75, 103 Watts-Tobin, R J., 175, 192 Waugaman, S N., 196, 197,231 Weaver, H S., 84, 106 Webber, J M., 223, 228,231 Webber, L R., 197,235 Weber, C R., 315,321 Webley, D M., 196, 197, 219, 232, 235 Wedin, W F., 13, 22, 107 Weed, S B., 25 1,274 Weenink, R O., 63, 102 Weidel, W., 220, 235 Weir, W C., 87, 90, 97 Weiss, E., 224, 234 Welch, J A., I I , 105 Weller, R A,, 48, 107 Weston, R H., 29, 36, 48, Whelan, W J., 224, 235 Whistler, R L., 197, 198, 204, 205, 207, 208, 211, 216, 217, 218, 220, 227, 228, 235 White, H S., 180, 194 White, J L., 248, 252, 258,272 White, P L., 180, 194 Whitehead, D C., 54, 108, 200, 203, 207, 209, 220,235 Whitelaw, F G., 48, 98 Whiteside, E P., 247, 248, 249, 250, 251, 253,255,256,257,260,261,275 Whitmore, E T., 68, 106 Whitmore, G E., 93, 103 Whittig, L D., 244, 275 Whybrew, J E., 315, 316,320 Wichser, W R., 184, 194 Wieringa, G W., 80, 108 Wiggans, R G., 15, 16,321 Wilcox, W., 288,321 Wilkins, R J., 89, 108 Willey, R W., 285, 307, 308, 31 I , 312,321 Williams, G., 197, 235 Williams, E E., 53, 104 Williams, J D., 63, 104 Williams, L D., 267, 274 Williams, V J., 81, 99 Wilson, A D., 87, 106 Wilson, C M., 175, I Wilson, I A N., 93, 106 Wilson, R F., 76, 80, 101 Wilson, R K., 7, 13, 99, 104 Wilson, R S., 27, 28, 31 32, 37, 98 Winch, J E., 22, 104 Wind, J., 57, 108 Winogradzsky, S., 196,235 337 AUTHOR INDEX Winter, K A., , 105 Winters, E., 237, 238, 257, 265,275 Winzler, R J., 223, 235 Wiseman, H G., 74, 100 Wolf, W J., 188, 194 Wolff, I A., 178, 180, 193, 194 Wolfrom, M L., 204, 224, 227, 228, 229, 233, 235 Woods, A E., 65, 108 Woodward F N 202, 207, 208, 209,231 Woolfolk, P G., 84, 105 Worker, N A., , 108 Wright, L M., 200, 202, 207, I I , 22 I , 233 Wright, M J., 64,108 Wright, P L., 73,108 Wyatt, C E., 267,274 Y Yamamura, Y , 184, I Yanofsky, C., 174,192 Yaron, D., 281,321 Yassoglou, N J , 247, 248, 249, 250, 25 1, 253,255,256,257,260,261,275 Yates, N G., 24, 63, 68, 102, 107, 108 Yatsu, L Y., 178, 180, 191 Yoda, K., 302,320 Young, M C., 90, 99 Z Zimmerman, R C., 255, 256, 273 Zon, R.,244,275 Zuckerkandl, E., 177, 194 Zweifel, G., 197, 204, 208, 216, 218, 232 Subject Index A D Dactylis glomerata, 17 Daucus carota, 180 Digitaria decumbens, 36 Alfalfa, 156 nutritive value, 7,45,46 Alfisol, 245 Alluvial soil, 152-153 Aluminum, 258 Avena sativa, 179 Azotobacter indicus, 220 Azuki bean, 291 E Ensilage, 74-80 Estrogenic compounds, forage crops, 1-63 Feed, digestibility coefficient, supplements, 25-27,37-38 voluntary intake, 27-38,7 I , 74-79 Festuca arundinacea, 17, 29, 33 Festuca pratense, 17, 5 Forage crop, nutritive value, 1-108 Fragipans, 237-279 Bacteria, soil, 19 Barley, 179, 187, 188,298 Birdsfoot trevoil, 34,64 Brassica campestris, 190 Bromus inermis, 32 G C Calcium, 5 , 57, 65, 149, 155, 161, 245 Carrot, 18 Cellulose, nutritive value, 8, 13, 14,77,89-90 soil, 197,219 Chenopodium pallidiculae, 180 Chenopodium quinoa, 180 Chernozem soil, 145-146 Chestnut soil, 146 Chitin, 221 Chlorophora excelsia, 149 Chromobacterium violaceum, 220 Clay, 198,247 Clover, 16,89 Cobalt, 57,63 Cocksfoot, nutritive value, 17, 18, 20-21, 23, 24, 32, 68 Copper, 54, 58 Corn, 179 see also maize Cornilla varia, 64 Corn silage, 46, 79 Cottonseed meal, 190 Crambe abyssinica, 180 Crownvetch, 64 Genetics, plant protein, 17 I - 194 GIycine max, 180 H Hordeum vulgare, I79 I lmperata cylindrica, I58 Inceptisol, 245 Iodine, 59 Iron, 247, 258 Ladino clover, 65 Lathyrus sativus, 189 Latosols, 148-151, 155 Lead, 58-59 Leaf proteins, 177-178 Legume, 180, 189 nutritive value, 12, 34, 1, 5 , 56, 62, 1, 74 Lespedeza cuneata, 25 Lignin, 7, 8, 13, 14, 89 Lithosols, 148, 152, 153 L o h m spp., 17, 18 Lotus corniculatus, 34, 64 338 SUBJECT INDEX Lucerne, nutritive value, 17, 22,25, 30, 34 36,53,62,63,7 1-72 M Magnesium, 56-57 247 Maize, see also corn, 22, 179, 180-187, 188.285 Marah gilensis, I80 Marrow-stem kale, 22 Meadow fescue, 55 Medicago sativa, 17, 20 Melilorus alba, 65 Millet, 179, 188 Molybdenum, 58 Montrnorillonite, 246, 248 N Narrow-stem kale, 22 Nitrate, 64-65 Nitrogen, 15, 20, 23, 24, 32, 36-37, 47, 50-5 I , 56 Oats, 179, 187, 298 Oat straw, 36 Onobrychis vicifolia, 22 Oryza sativa, 179 P Pangola grass, 36 Panicum milliaceum, 179 Pennisetum purpureum, 156 Phalaris arundinacea, 29, I , 34 Phalaris tuberosa, 1, 63, 69 Phaseolus chrysanthus, 29 I Phelum nodosum, 29 Phleum pratense, 17, 29, 55 Phosphate, 65 Phosphorus, 55, 155, 159 Planosol, 267 Plant density, yield, 281-32 Plant protein, genetics, 171- I94 Poa pratensis, 55 Podzol, 145-148, 151, 268 Potassium, 56 Potato, 189, 304 339 R Red clover, 22, 34, 65 Reddish Chestnut soil, 145-146 Regosols, 149, 153 Rice, 179, 187 Rye, 179, 188 Rye grass, nutritive value, 7, 17, 18, 2021, 22, 23, 24, 30.43.47, 54, 55,65, 66, 70, 89, 93 S Sainfoin, 22, 34 Secale cereale, 179 Seed, storage proteins, 178- 180 Selenium, 59-60 Sericea lespedem, 25 Sierozem soil, 146- 147 Silica, 10-1 1, 60-61, 257 Sodium, 55 Solannum malacoxylon, 65 Soil, classification, 265-269 erosion control, 138-140 fragipans, 237-279 group descriptions, 145-1 53 horizons, 240-242 polysaccharides, 195-235 potentially arable, 109-170 surveys, 123- 130 use, 112-122, 156-163 Sorghum, 179, 187 Sorghum vulgare, 179 Soybean, 180, 188, 16, I8 Spodosol, 245, 269 Subterranean clover, 1-62, 69, 293 Sulfur, 52, 59 Sweet clover, 65, 69, 156 Tall fescue, 17, 18, 29, 63 Terra Rossa soil, 151-152 Timothy, nutritive value, 16, 17, 29, 30, 55 Trqolium pratense, 22 Trfolium repens, 17 Trifolium subterraneum, 63 Triticum vulgare, 179, 187 SUBJECT INDEX Tropical soil, 156- I63 Turnip, 10 U control, 130-135 fragipans, 254-256, 258, 264 Wheat, 179, 188, 285, 31 White clover, nutritive value, 17, 47, 65 Ultisol, 245 Urea, 26, 36, 1, 52, 53 V Y Yield, plant density, 281-321 Vetch, 25 W Water, 24 Zea mays, 22, 179 Zein, 179, 180-187 ... Voluntary Intake of Forages 27 A The Factors Controlling Feed Intake 28 B Intrinsic Factors Determining Forage Intake _ _ 35 C The Nutritive Value Index D The Crude Protein Content... of up to 50 percent in digestibility as a result of grinding forage samples in a ball mill before in vitro digestion However, within the range of fineness of grinding found in forage samples ground... of Volatile Fatty Acids in Ruminant 40 C The Utilization of the Crude Protein in Forages 48 D The Use of Nonprotein Nitrogen in Ruminant 51 E The Mineral Nutrients in Forages 54 F Pharmacologically