[1]马耀华,李岗,冯立孝,等.渭北旱塬小麦合理施肥与经济效益[J].水土保持研究,1989,(01):91-102.
Ma Yaohua,Li Cang,Fen Lixiao,et al.Rational Fertilization to Winter Wheat and Its Economic Efficiency in Weibei Rainfed Highland[J].Research of Soil and Water Conservation,1989,(01):91-102.
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Ma Yaohua,Li Cang,Fen Lixiao,et al.Rational Fertilization to Winter Wheat and Its Economic Efficiency in Weibei Rainfed Highland[J].Research of Soil and Water Conservation,1989,(01):91-102.
渭北旱塬小麦合理施肥与经济效益
《水土保持研究》[ISSN:1005-3409/CN:61-1272/P]
卷:
期数:
1989年01期
页码:
91-102
栏目:
出版日期:
1900-01-01
- Title:
- Rational Fertilization to Winter Wheat and Its Economic Efficiency in Weibei Rainfed Highland
- 摘要:
- 渭北旱塬土壤养分普遍不足，首先是氮不足，其次是磷；施氮磷肥都可提高小麦产量。土壤磷素供应充足，氮肥效应较大；氮素供应不足，施磷往往亏本。小麦籽粒蛋白质及赖氨酸含量与施氮量呈显著的正相关。小麦合理氮磷肥配比为：N：P2O5=1：0.5—0.9，二者合理配比可达到小麦高产、优质和低成本。本区氮肥利用率为41—68.6%，磷肥当季利用率11.5%；有机肥中，氮素当季发挥32.3%。提高肥料利用率是今后重要的研究课题。
- Abstract:
- The plant nutrients of soil are in general deficient in Weibei rainfed highland, the first is N, the second is P and the yield of wheat can be increased by N and P fertilizer application, The efficiency of N fertilizer are significant if the P in soil are sufficient, There is often negative economic efficiency by P fertilizer application if N supply by soil are not enough.It has significant positive correlation between contents of protein and lysine in wheat seed and amounts applying N fertilizer into the soil Resuits of the experiment showed that the properly mixed ratio of N and P fertilizer to winter wheat are N:P2O5=1:0.5-0.9, in this range, high yield, good quality and low production cost to winter wheat may be a chieved, The use efficiency of N,P fertilizer and N in organic manure are 41-68.6%, 11.5% and 32, 3% respectively showed that it is one of the important research problem to raise the use efficiencv of fertilizer.
参考文献/References:
[1] 陈伦寿、李仁岗主编:《农田施肥原理与实践》,农业出版社,1984年
[2] 彭琳等:"渭北高原早地小麦化肥施用效果",《干旱地区农业研究》,1986年第1期第32-38页
[3] 杨平等:"渭北旱想轮作、施肥与土壤培肥试验的初步研究",《干旱地区农业研究》,1988年第1期第72-77页
更新日期/Last Update:
1900-01-01