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通过大田试验,研究了沼肥与化肥配施对盐渍土棉花产量、氮素利用率的影响。结果表明,在新疆盐渍化土壤中,无论壤土还是砂壤土,氮素总量投入相同时,沼肥提供25%的氮素,尿素提供75%氮素能获得较高的产量;壤土生产性能、氮素利用效率、表观利用率、氮素对产量的贡献率比砂壤土更高;生产中投入氮素总量为138 kg·hm~(-2)的沼肥与尿素配合施用就能获得高产。
Field trials were conducted to study the effects of biogas manure and chemical fertilizers on cotton yield and nitrogen use efficiency in saline soils. The results showed that, in the salinized soil in Xinjiang, whether the loam or sandy loam, the total amount of nitrogen inputs the same, the biogas fertilizer provides 25% of nitrogen, urea provides 75% of nitrogen can get higher yield; loam production performance , Nitrogen use efficiency and apparent utilization rate, and the contribution of nitrogen to yield was higher than that of sandy loam. The biogas fertilizer with total nitrogen input of 138 kg · hm -2 was used in combination with urea Get high yield.