LIU Yi.Influences of Fertilization on the Yield of Winter Wheat and Soil Fertility in Dryland of Loess Plateau[J].Research of Soil and Water Conservation,2003,10(01):40-42.
施肥对黄土高原旱地冬小麦产量及土壤肥力的影响
- Title:
- Influences of Fertilization on the Yield of Winter Wheat and Soil Fertility in Dryland of Loess Plateau
- Keywords:
- fertilizer application; dryland; winter wheat yield; soil fertility
- 分类号:
- S512.11;S147.3
- 摘要:
- 肥料定位试验结果表明：各种肥料单施或配施对小麦产量影响顺序为MNP>NP>MN>N>M>MP>P>CK，不同肥料间具有明显的正交互效应。化肥配施可显着提高旱地小麦的水分生产效率和肥料利用率，有机肥与氮磷肥配合施用效果最佳，可使小麦耗水系数降低51.0%，水分利用效率提高165.6%，氮肥、磷肥利用率分别提高8.3，6.0个百分点，土壤有机质、全氮、碱解氮、速效磷和速效钾含量分别提提高1.9g/kg、0.05g/kg、21.3mg/kg、16.8mg/kg和34.0mg/kg。
- Abstract:
- Based on the data of fixed position fertilizer test, the results showed that fertilizer application separately or complication application have effects on the wheat yield, the effecting order is:MNP>NP>MN>N>M>MP>P>CK, and there is a clear positive interaction.Fertilizer complication application can increase the water use efficiency and fertilizer utilization, the complication application of organic fertilizer and N, P is the best, which can reduce water consumption coefficient by 51.0%, and increase WUE 165.6%, increase the utilization of N, P 8.3% and 6.0%, the content of soil organic matter?total N, available N, available P, and available K 1.99 g/kg, 0.05 g/kg, 21.3 mg/kg, 16.8 mg/kg and 34.0 mg/kg respectively.
参考文献/References:
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备注/Memo
收稿日期:2002-11-25
基金项目:国家科技攻关项目（2001BA508B18）
作者简介:刘一（1972- ），男，甘肃西峰人，助理研究员，主要从事旱地土壤水肥研究工作。