Tropical Agroecosystems - Chapter 7 pot

... developing Area Yield 71 52 177 14 70 37 6 41 56 13 140 –3 133 40 116 50 Asia developing Area Yield 15 176 295 99 – 17 214 11 85 70 2 17 –2 23 –4 124 125 77 Latin America and Caribbean Area Yield 26 124 5 17 6 28 129 –51 175 2 57 106 37 20 23 27 60 102 Oceania ... 1 ,72 0,448 –44 Cereals NES a 2,261,550 2,582,858 14 Potatoes 22,1 47, 776 18 ,77 7,209 –15 Sweet pota...

Ngày tải lên: 11/08/2014, 15:20

... grasslands, Ecology, 73 : 170 6– 171 7, 1992. Borrero, H., La substitución de cafetales de sombrío por caturrales y su efecto negativo sobre la fauna de vertebrados, Caldasia, 15 :72 5 73 2, 1986. Botero, ... Agrofor. Today, 7: 5 7, 1995. Estrada, A., Non-flying mammals and landscape changes in the tropical rain forest region of Los Tuxtlas, Ecography, 17: 229–241, 1994. Estrada, A., Coate...

Ngày tải lên: 11/08/2014, 15:20

... Water α-HCH 0.5 Soon and Hock, Selangor γ-HCH 0.1 19 87 Rice-field α-HCH 18–58 fish γ-HCH 10–100 α-endosulfan 5130 β-endosulfan 170 0 Penang 1984– 87 Rice field α-HCH 2.3 Jothy et al. 19 87 + marine ... 1983 Basin, Perak β-HCH 0.1–0.9 γ-HCH 0.1–0.6 Aldrin 0.1–1.8 Sediment Dieldrin 0.8–4 .7 β-HCH 0.6–8.0 γ-HCH 0.4–0.8 Aldrin 0.1 Rice-field Dieldrin 6.6–2.49 fish α-Chlordane 2.8– 17. 1 β-HC...

Ngày tải lên: 12/08/2014, 02:23

... 1 34 Example 5 172 . 17. 2.0/24 172 . 17. 1.0/24 .1 .1 .1.2 172 . 17. 1.0 172 . 17. 3.0 Apply /24 interface mask Apply /24 interface mask 172 . 17. 3.0/24 48 Enabling and Verifying RIPv2  RIPv2 is defined in RFC 172 3.  ... 32 Example 4 172 . 17. 2.0/24 172 . 17. 1.0/24 10.1.1.0/24 .1 .1 .1.2 172 . 17. 1.0 10.0.0.0 (summary) Apply /24 interface mask Apply /8 classful mask 41 RIPv1: N...

Ngày tải lên: 09/03/2014, 13:20

... response to N dep- osition (Aber and Driscoll, 19 97; Foster et al., 19 97; Aber et al., 19 97, 1998). The greater the previous extraction of N from the site by agricultural conver- sion, fire, logging, ... stands. 7. 3 Nitrogen in Surface Waters Atmospheric deposition of N (as NO 3 - and as NH 4 + that can be quickly nitri- fied to NO 3 - ) in some cases causes increased concentratio...

Ngày tải lên: 18/06/2014, 16:20

... environments. Contents 7. 1 Introduction 1 67 7.1.1 Tylosin 168 7. 1.2 Enteric Bacteria 169 7. 2 Mater ials and Metho ds 170 7. 2.1 Preliminary Trial 170 7. 2.2 Main Study 171 7. 3 Results a nd Discussion 171 7. 3.1 ... 171 7. 3.1 P reli mi na r y Tria l 171 7. 3.2 Main Study 172 7. 4 Conclusion 175 Ack nowledgments 175 References 176 © 2008 by Taylor & Francis Group, LLC 1...

Ngày tải lên: 18/06/2014, 16:20

... water yield from the 331-ha forested watershed was much higher (70 9 mm/yr and a runoff ratio of 70 .2%) than the 291-ha clear-cut watershed ( 276 mm/yr and a runoff ratio of 27. 3%). In 1969, 60% ... Research 37( 1): 175 – 178 . Trimble, S. W., and F. H. Weirich. 19 87. Reforestation reduces streamow in the southeastern United States. Journal of Soil and Water Conservation 42(4): 274 –...

Ngày tải lên: 18/06/2014, 16:20

... Windows 78 0 nm Laser Diode Fitting Optic Holder X,Y,Z Adjust Spacer Laser Driver Signal Amplification Board L1306/frame/pt02 Page 82 Friday, June 23, 2000 1:54 PM © 2001 by CRC Press LLC 81 CHAPTER ... cell slit and sealed with O-rings to create the flow cell path. Quartz can be used for this type of window as well, or can be drilled and polished to produce a single four-sided piece...

Ngày tải lên: 18/06/2014, 19:20

... 133 7. 5.4 Gravity-Based (Density) Separation 134 7. 5.4.1 Vertical Column Hydroclassification 134 7. 5.4.2 Spiral Classifiers 1 37 7.5.4.3 Sample Results for Vertical Column Hydroclassification 1 37 7.5.4.4 ... Treatment Methods 128 7. 5 Physical Separation 129 7. 5.1 Background 129 7. 5.2 Fundamentals of Physical Separation 130 7. 5.3 Sized-Based Separation 130 7. 5.3.1 Screening 130...

Ngày tải lên: 18/06/2014, 19:20

... TYPES HOLARCHY GEO-CLIMATIC ZONE AGROECOZONE CATCHMENT -GEOLOGY -CLIMATE -VEGETATION - AGRIC. POTENTIAL -ARID AND SEMI-ARID -CENTRAL HIGHLANDS -COASTAL REGION -LAKE BASIN -FOREST ZONE -TEA-DAIRY ZONE -COFFEE-TEA ... households with off-farm income 14.8% 37. 5% 67. 5% 29.8% 36.6% 57. 8% Mean number of people per household 5.6 ± 0.25 6.1 ± 0.22 7. 8 ± 0.6 8.0 ± 0.35 7. 3 ± 1.0 7. 0...

Ngày tải lên: 18/06/2014, 19:20