Related by context. Frequent words. (Click for all words.) 59 salination 58 inorganic fertilizers 57 polluted 55 chlorinated 54 irrigated 53 desalinated 53 water 53 acidic soils 53 cultivable 52 alkaline soils 52 Soil erosion 52 mineral salts 51 brackish water 51 irrigate 51 desilted 51 acidify 51 potable 51 soil salinity 51 heavily polluted 51 oxygenating 51 brackish 51 Polluted 51 silted 51 polluted rivers 50 corrosive acid 50 silts 50 rotting vegetation 50 river deltas 50 overexploited 50 saturated soils 50 wastewater effluent 50 turbid 49 irrigations 49 evaporation ponds 49 irrigated crops 49 artesian wells 49 prolonged droughts 49 irrigate crops 49 dewatered 49 overgrazed 49 Potable water 49 fertile soils 49 potable water 49 desalinate 49 aerated 48 arable lands 48 fertilizers pesticides 48 toxic pesticides 48 Grass clippings 48 industrial effluents 48 moist soil 48 creeks rivers 48 alkaline soil 48 Drip irrigation 48 coconut husks 48 submersed 48 silt 48 contaminate groundwater 48 cordgrass 48 mucilage 48 chlorinate 48 seawaters 48 groundwater aquifers 48 Acidic 48 reverse osmosis RO 48 drained soils 48 polluted waterways 48 vegetated 47 potent greenhouse gas 47 chlorinating 47 absorbs carbon dioxide 47 treated effluent 47 acidic 47 seawater 47 sewage effluent 47 scanty rainfall 47 undrinkable 47 herbicides pesticides 47 chemical fertilizers 47 overexploitation 47 acidified 47 desalinization plants 47 salt tolerant 47 defoliate 47 croplands 47 contaminated 46 desalinization 46 bleaching powder 46 oxygenated 46 salinity 46 paddy crops 46 purified 46 chemically treated 46 frequent droughts 46 parching 46 submerged 46 diked 46 coconut plantations 46 groundwater recharge 46 rainwater 46 acidic soil