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探讨牧草地灌溉牛粪尿沼液时间长短对高秆禾本科牧草鲜草产量、品质及牧草地土壤养分、重金属残留的影响,分析较佳的沼液施用量来获得较高的牧草生物量、营养价值,同时又能防止长期施用沼液造成土壤有害物质的蓄积和叠加。
To investigate the effects of irrigating manure and urine manure on the yield and quality of fresh grasses and soil nutrients and residues of heavy metals in grazing grassland and to find out the best biogas slurry application rate to obtain higher grazing biomass, Nutritional value, but also prevent the long-term application of biogas slurry caused by soil accumulation and accumulation of harmful substances.