Related by context. Frequent words. (Click for all words.) 65 monocultures 58 monoculture 57 soil salinity 56 Genetic modification 56 Soil erosion 54 ecological 53 cultivations 53 bioenergy crops 53 agro ecological 53 arable crops 53 deforesting 53 habitat fragmentation 52 superweeds 52 livestock rearing 52 native pollinators 52 agrichemicals 52 environmental degradation 51 farming 51 Invasive plants 51 transgenics 51 salination 50 herbicide resistant crops 50 overexploitation 50 biofuel feedstocks 50 clearcutting 50 cerrado 50 agrofuels 50 nutrient runoff 50 forage crops 50 artificial fertilizers 50 drylands 50 arable farming 50 postharvest 50 timber plantations 50 weedkillers 49 pastoralism 49 agricultural 49 biodiversity 49 chemical fertilizers 49 Bt crops 49 riparian zones 49 GMO seeds 49 soil fertility 48 synthetic pesticides 48 fertilizers pesticides 48 intensively farmed 48 Suburban sprawl 48 industrialization 48 rainforest destruction 48 ecological degradation 48 irrigated agriculture 48 ecologies 48 mealy bug 48 fertile soils 48 shelterbelts 48 crops 48 genetically modified organism 48 periodic droughts 47 grazing pastures 47 riparian vegetation 47 agriculture 47 mechanization 47 Methyl bromide 47 biopiracy 47 deforestation 47 agroforestry 47 nutrient uptake 47 rampant deforestation 47 crop rotations 47 overhunting 47 forbs 47 organic farming 47 irrigated crops 47 synthetic fertilizers 47 agronomic practices 47 rice cultivation 47 nutrient deficiency 47 urbanization 47 horticultural crops 47 acidic soils 46 cacao trees 46 rapid urbanization 46 genetic modification 46 conserve biodiversity 46 spartina 46 microbial ecology 46 pesticides 46 croplands 46 cordgrass 46 deciduous forests 46 grassland habitat 46 herbicides pesticides 46 subsistence agriculture 46 Genetically modified crops 46 prolonged droughts 46 plantations 46 biofuel crops 46 corn borers 46 arid lands 46 bioaccumulation 46 arable lands