Related by context. Frequent words. (Click for all words.) 66 biofuel crops 65 biofuels 65 feedstocks 64 biofuel 64 oilseed crops 62 biomass 61 bioenergy 60 bio fuels 60 perennial grasses 60 agricultural residues 60 crop residues 60 feedstock 60 corn ethanol 59 Cellulosic ethanol 58 cellulosic ethanol 57 transgenic crops 56 feedstuffs 56 switchgrass 56 cellulosic 55 camelina 55 cellulosic biofuels 55 Camelina 55 sweet sorghum 54 corn stover 54 crop residue 54 crops 54 monocultures 54 fossil fuels 54 woody biomass 54 Miscanthus 53 jatropha 53 biomass fuels 53 cellulosic biomass 53 ethanol 53 transgenic plants 52 crop yields 52 Biofuel 52 organic fertilizers 52 renewable fuels 52 nitrogen fertilizers 51 microalgae 51 hydrocarbon fuels 51 agroforestry 51 alternative fuels 51 cereal crops 51 biodiesel 51 Jatropha 51 coarse grains 51 fossil fuel 50 bioethanol 50 prairie grasses 50 cereal grains 50 biochar 50 GMO crops 50 distillers grains 50 biobutanol 50 soyabeans 50 carbon sequestration 50 fertilizers 50 soybean varieties 50 synthetic fertilizers 49 horticultural crops 49 chemical fertilizers 49 genetically engineered crops 49 fertilizers pesticides 49 biodegradable plastics 49 miscanthus 49 woody plants 49 nitrogen fertilizer 49 legumes 49 bio ethanol 49 renewable 49 biobased 49 biorefineries 49 pest resistant 49 biobased products 49 soil fertility 48 soybeans 48 Organic farming 48 biotech crops 48 corn silage 48 sequester carbon 48 forages 48 bioproducts 48 oilseeds 48 grasses 48 Feedstock 48 transgenic 48 genetically modified crops 48 vegetable oils 48 sugarcane ethanol 48 Biomass 48 corn 48 biotechnologies 47 cowpea 47 distillers grain 47 grain sorghum 47 safflower 47 organic farming 47 Roundup Ready alfalfa 47 Evogene