Related by context. Frequent words. (Click for all words.) 65 soil salinity 65 soil compaction 61 Soil erosion 60 pasture grasses 58 saturated soils 58 salination 58 alkaline soils 57 Fertilizing 57 Drip irrigation 56 nutrient runoff 56 acidic soils 55 seed germination 55 sooty mold 55 root rot 55 groundwater depletion 55 woody vegetation 55 winterkill 55 soils 55 herbicide resistant weeds 54 nutrient uptake 54 nutrient deficiency 54 streambanks 54 lowland flooding 54 soil erosion 54 compaction 54 recharge groundwater 54 clay soils 54 freeze thaw cycles 53 overwatering 53 desiccation 53 Melting snow 53 drained soils 53 arid climates 53 tillering 53 sandy soils 53 bermudagrass 53 alkaline soil 53 thaw cycles 53 Palmer amaranth 52 Algae blooms 52 inoculum 52 decaying vegetation 52 riparian vegetation 52 glyphosate resistance 52 periodic droughts 52 compacted soil 52 Nematodes 52 Stormwater runoff 52 nutrient absorption 52 herbicides pesticides 52 horseweed 52 shelterbelts 52 tall fescue 52 endophyte 52 Crabgrass 51 dense canopy 51 chinch bugs 51 overwatered 51 Warm temperatures 51 Severe drought 51 melting snowpack 51 nutrient deficiencies 51 cordgrass 51 corn earworm 51 Fescue 51 Citrus canker 51 nonpoint source pollution 51 Soil moisture 51 acidic soil 51 inorganic fertilizers 51 irrigated crops 51 cankers 51 Iron deficiency 51 insect infestations 50 weed seeds 50 herbicide resistant crops 50 sedimentation 50 blackgrass 50 Sedimentation 50 bollworms 50 population densities 50 apple scab 50 vegetation 50 groundwater withdrawals 50 irrigated lands 50 Phragmites 50 dieback 50 Particle pollution 50 ponding 50 sandy loam 50 nitrogen fixing 50 deciduous forests 50 woody plants 50 mealy bugs 50 mold fungi 50 parasitic mites 50 rootworm 50 nutrient loading 50 nitrogen fertilizers 50 Feral hogs 49 forbs