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本文调查并分析了辽宁省有机肥源的数量和养分含量。结果表明,最大宗的畜禽粪尿肥年产4181万t,N∶P_2O_5∶K_2O为1∶0.47∶0.88,另含丰富而有效的微量营养元素。合理施用这些有机肥料,是保持和提高土壤肥力水平,发展持续农业所必需。
This paper investigated and analyzed the quantity and nutrient content of organic fertilizer sources in Liaoning Province. The results showed that the largest livestock manure urine output of 41.81 million t, N: P_2O_5: K_2O 1: 0.47: 0.88, and the other rich and effective trace elements. The rational application of these organic fertilizers is necessary to maintain and enhance the level of soil fertility and to develop sustainable agriculture.