Related by context. Frequent words. (Click for all words.) 67 soil fertility 65 crops 61 harvests 57 corn acreage 56 crop 56 droughts 55 biofuel crops 54 Crops 54 corn crop 54 soybean crop 54 wheat crop 53 soybean crops 53 soil moisture 53 salinity 52 cropland 51 nitrogen fertilizer 51 genetically modified crops 51 prolonged drought 51 cotton growers 51 agricultural 51 arable land 51 wheat harvest 50 farmers 50 yields 50 irrigated 50 oilseed 49 soybeans 49 corn 49 soybean 49 genetically modified seeds 48 heatwaves 48 tillage 48 Bt cotton 48 soils 48 agronomic 48 staple foods 48 soil erosion 48 pollination 48 Drought 47 sorghum 47 dryland 47 drought 47 overgrazing 47 rainfall 47 chemical fertilizers 46 fertilizers 46 corn soybean 46 climatic conditions 46 biotech crops 46 biodiversity 46 wheat 46 forage 46 famines 46 droughts floods 46 smallholder farmers 46 fertilizer 46 biofuels 46 agriculture 46 forages 46 genetically engineered crops 45 corn soybeans 45 herbicides 45 semi arid 45 Soybeans 45 carbon sequestration 45 genetic diversity 45 Crop 45 nematode 45 agronomist 45 warmer temperatures 44 cultivation 44 alfalfa 44 oilseeds 44 nighttime temperatures 44 farming 44 arable 44 bumper harvest 44 atmospheric carbon dioxide 44 grains 44 productivity 44 Warmer temperatures 44 maize 44 Monsanto 44 insect pests 44 harvest 43 glyphosate 43 organic farming 43 biochar 43 rangelands 43 Biofuel 43 drought resistant 43 agronomy 43 grain 43 biofuel 43 irrigation 43 growers 43 desertification 43 germination 43 fungicides 43 Agriculture Organisation 43 soybean rust