SOIL ECOLOGY IN SUSTAINABLE AGRICULTURAL SYSTEMS - CHAPTER 4 doc

... Press LLC remaining roots increased while dry weight decreased. A slight net immobi- lization of minerals of N and P during autumn appeared in CONV but not in INT. During the next growing season ... 1977. Solute Movement in the Soil- Root System. Studies in Ecology No. 4, Blackwell, Oxford, p. 342 . Swinnen, J., 19 94. Rhizodeposition and turnover of root-derived material in bar...

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... organisms in reduced input farming, in Soil Biota Management in Sustainable Farming Systems, Pankhurst, C. A., Ed., Proc. Int. Workshop on Management of the Soil Biota in Sustainable Farming Systems, Adelaide, ... methylene-blue staining (second bar at each depth) in INTA and CONVB in 1990. CONVB = conventional farming system since 1985 on low-organic matter soil; INTA...

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... can find more protective niches in fine-textured soils than in coarse-textured soils, leading to a higher grazing pressure in the coarse-textured soils (Postma, 1989) and a stronger increase in ... Relative Increase in C Mineralization after Drying, Fine-Sieving, and Rewetting of Soil Samples in Comparison with Drying/Rewetting Only (%) in Sandy, Loamy, and Clay Grassland So...

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... 48 .1 56.3 94. 0 75.0 30.0 27.7 34. 6 32.1 75.3 47 .6 Fungi 46 .3 39.9 0.86 0.97 64. 4 70.7 61.5 64. 3 Protozoa 1 .44 2.18 4. 90 5.90 4. 72 1.05 2.92 1.57 24. 6 52.3 Nematodes 0.073 0.1 14 0. 24 0.26 0.07 ... Veen, 1989) and to their feeding on bacteria (Coleman et al., 19 84) . In fungal-dominated soils, fungal-feeding fauna such as many non-plant-parasitic stylet-bearing nematodes...

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... nutrients in inter- and intra-specific combinations of host plants. New Phytol., 102:103–111. Francis, C. A., 1989. Biological efficiencies in multiple-cropping systems. Adv. Agron., 42 :1– 24. Galvis-Spinola, ... vesicular-arbuscular myc- orrhiza in agro-ecosystems. I. Influence of nitrogen fertilization and green manure in continuous monoculture and in crop rotation on the inoc...

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... alley cropping 6 b 74. 4 50.8 55 .4 39 .4 Leucaena alley cropping 7 c 70.9 79.7 55 .4 61.7 Senna alley cropping 7 c 54. 0 52.8 40 .6 39 .4 a Nondegraded. b Moderately degraded. c Severely degraded soil. © ... Omodeo, Megascolecidae) in an Afri- can savanna (Lamto, Ivory Coast). Soil Biol. Biochem., 24: 141 9– 142 4. Matlon, P. J. and Spencer, D. S. C., 19 84. Increasing food prod...

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... –3 4 –17 –20 Kenya 42 46 –3 –1 –29 –36 Malawi –68 –67 –10 –10 44 48 Mali –8 –11 –1 –2 –7 –10 Nigeria – 34 –37 4 4 – 24 –31 Rwanda – 54 –60 –9 –11 47 –61 Senegal –12 –16 –2 –2 –10 – 14 Tanzania ... many of the great gains in production made in the green revo- lution by use of high-yielding varieties with high inputs of inorganic fertilizer cannot be maintained indefinitely. Among t...

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... for organic farmers in Iowa today. IN ORGANIC AGRICULTURAL SYSTEMS Soil Quality PM 1882 August 2003 B Organic Farming Requires Quality Soil Building and maintaining soil quality is the basis ... (See page 8 for ordering instructions.) Building and maintaining soil quality is the basis for successful organic farming. Periodic soil testing will help determine soil qu...

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... (dimeglumine gadopentetate), 2[1 ,4, 7,10-tetraaza -4 , 7-bis(carboxymethyl )-1 0-( 2-hydroxypropyl)cyc lododecyl]acetic acid, gadolinium salt (Gd[HP-DO3A]) and 2-( 1 ,4, 7,10-tetraaza -4 , 7- bis(carboxymethyl )-1 0-( [N-carboxymethyl)-N- ( 4- cyclohexylphenyl)carbamoyl]me thyl)cyclododecyl)acetic ... 1 0-[ 2,3-dihydroxy-(1-hydroxymethyl)-propyl ]-1 ,4, 7,10-tet - raazac...

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... of metamizole (formylaminoantipyridine and aminoantipyridine), and two micobio - l o gical metabolites (1,5-dimethyl-1,2-dehydro-3-pyrazolone, 4- ( 2-methylethyl )-1 , 5- dimethyl-1,2-dehydro-3-pyrazole) were ... metabolites (10,11-dihydro-10,11-epoxycarbamaze- pine, 10,11-dihydro-10,11-dihydroxycarbamazepine, 2-hydroxycarbamazepine, 3- hydroxycarbamazepine, 10,11-dihydro-10-hydr...

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