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对盆栽水稻施以不同水平的猪粪和牛粪两种有机肥料,结合其本身对氮磷的吸收利用状况及养分在土壤和水体环境下的分解释放规律,研究了水稻对有机粪肥的消纳吸收能力。结果表明,水稻可以有效地处理猪粪和牛粪;综合生态效益与经济效益,在处理猪粪时,P5水平(猪粪处理量120000kg·hm-2,折合纯氮量1103.52kg·hm-2)下的处理效果最好,处理牛粪时,C6水平(牛粪处理量300000kg·hm-2,折合纯氮量3224.5kg·hm-2)下的处理效果最好,施肥量低于此的植株生长缓慢,高于此则植株的增产效应不明显,并且容易出现受害症状,而有机肥对环境的二次污染风险会加大。
The potted rice was applied with different levels of pig manure and cow dung two kinds of organic manure, combined with its own on the absorption and utilization of nitrogen and phosphorus and nutrient decomposition in the soil and water environment law to study the absorption and absorption of organic manure on rice ability. The results showed that rice could effectively treat pig manure and cow manure. With comprehensive ecological and economic benefits, P5 level (pig manure handling capacity 120000kg · hm-2, equivalent to 1103.52kg · hm-2 of pure nitrogen) Under the treatment of cow dung, the treatment effect under C6 level (cattle manure treatment 300000kg · hm-2, equivalent pure nitrogen 3224.5kg · hm-2) Slow growth, above which the yield-increasing effect of plants is not obvious, and prone to victimization symptoms, and organic fertilizer on the environment of secondary pollution risk will increase.