Unit 1 1
Part A Plants 1
Part B WHEAT-Triticum Spp.(Gramineae-Triticinae)) 11
Unit 2 17
Part A Botany 17
Part B The Growth of Plants 21
Unit 3 25
Part A Carbon Dioxide Is Nature's Hidden Yield Enhancer 25
Part Brainage and Irrigation 36
Unit 4 39
Part A Biological Power 39
Part BEcofarming 47
Part A Crop Yields Decline with Topsoil Loss 53
Unit 5 53
Part B Potato 61
Unit 6 65
Part A Green Revolution 65
Part B Shrinking Wheat Cultivation Area 78
Unit 7 82
Part A Green Gene Technology 82
Part B The Agro-Ecological Zones(AEZ)Methodology 88
Unit 8 100
Part A the Biotech Century 100
Part B Comparison of Different Models for Agriculture 107
Unit 9 109
Part A Crop Yield Estimate Comparison between Two Methods:energy Balance and water Balance 109
Part B setting Realistic Crop Yield Goals 118
Part A Biodiversity and Organic Agriculture 124
Unit 10 124
Part B triticum Aestivum L. 133
Unit 11 147
Part A plant Breeding 147
Part B jumping Genes Make Genetic Leaps 154
Unit 12 158
Part A Food Safety and quality As Is Affected by Organic Farming 158
Part B effect of Till and No-Till Soybean Cultivation on Dynamics of Entomopathogenic Fungi in the Soil 171
Unit 13 177
Part A New Wheats Will Help Growers Fight weeds 177
Part BCIMMYT Wheats Take the Heat 183
Unit 14 186
Part A Induction of Photoperiod Sensitive Genetic Male Steriles for Use in Hybrid Rice Seed Production 186
Part B Rice 194
Part A Baby Corn Research project 1998 200
Unit 15 200
Part B Corn 215
Unit 16 218
Part A crop Breeding for Organic Agriculture 218
Part B U.S.Organic Agriculture Introduction 234
Unit 17 239
Part A the Future of Agriculture:Challenges for Environment,Health and Safety Regulation of Pesticides 239
Part B feeding a World of 10 Billion People:the Miracle Ahead(I) 251
Unit 18 264
Part A A Pilot Project on Rapid Estimates of rop Area Changes from a Scattered Sample of Mini-Sites 264
Part B feeding a World of 10 Billion People:the Miracle Ahead(II) 274
参考译文 285
Key to Exercises 345