Related by context. Frequent words. (Click for all words.) 63 acidic soils 61 drained soils 61 alkaline soil 61 arid regions 60 humid climates 59 fertile soils 59 arid lands 58 warm climates 58 semi arid regions 58 arid 57 subtropical climate 56 tropical climates 56 harsh climates 56 sandy soils 56 temperate zones 55 salt tolerant 55 nitrogen fixing 55 temperate forests 55 semi arid 55 soils 55 temperate climates 55 acidic soil 55 deciduous forests 55 cold climates 55 Drip irrigation 54 arid desert 54 drought resistant 53 bermudagrass 53 grasses 53 semiarid 53 climates 53 perennial grasses 53 aridity 53 micro climates 53 tall fescue 53 atmospheric nitrogen 52 hay meadows 52 pasturelands 52 temperate regions 52 forbs 52 Fescue 52 native pollinators 52 irrigated crops 52 Switchgrass 52 sandy soil 52 shade tolerant 52 woody plants 52 herbaceous plants 51 climatic conditions 51 alfalfa fields 51 moist soil 51 sandy loam 51 deserts 51 agaves 51 cooler climates 51 colder climates 51 drought tolerant 51 bollworms 51 aloes 51 prickly pears 51 temperate climate 50 biofuel feedstocks 50 drought tolerant plants 50 seeds germinate 50 abundant sunshine 50 pollinating insects 50 drylands 50 yuccas 50 acacias 50 clay soils 50 evening primrose 49 microclimate 49 fungal spores 49 microclimates 49 zoysia 49 chia seeds 49 savannahs 49 seed germination 49 funguses 49 desert 49 periodic droughts 49 millets 49 herbaceous perennials 49 hickories 48 cacti 48 Chihuahuan Desert 48 evenly moist 48 agriculturally 48 prairie grasses 48 calcareous 48 Succulents 48 nitrogen fixation 48 climatically 48 deciduous forest 48 ornamental grass 48 irrigated 48 evergreen forests 48 evergreen shrub 48 understory 48 nutrient uptake 48 freshwater marshes