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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (22): 201-205.

所属专题： 油料作物

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

河套灌区中低产田油用向日葵肥料效应分析

李雪冰 闫礼 孔德胤 张英 郭婕   

  • 收稿日期:2010-06-02 修回日期:2010-07-23 出版日期:2010-11-20 发布日期:2010-11-20

The Effect of Fertilizer on Economic Benefits of Oil Sunflower in Hetao Irrigated Area

  • Received:2010-06-02 Revised:2010-07-23 Online:2010-11-20 Published:2010-11-20

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摘要：

为了确定内蒙古河套灌区中低产田油用向日葵氮、磷、钾肥料效应，采用三因素二次通用旋转设计法，对该灌区油用向日葵进行氮、磷、钾施肥试验研究。结果表明，河套灌区施用氮、磷、钾均对油用向日葵产量有显著的增产效果，并能用三元二次多项式进行模拟表达。最高理论产量可达4331.55 kg/hm2；最佳产量为4252.35 kg/hm2，氮、磷、钾的经济效益最佳配比为6.91:3.31:1。根据产量施肥的边际利润率值，可求出不同施肥成本的利润，从而选用投资少、获利高的施肥方案。

关键词: 生态城市, 生态城市, 地方高校, 校园景观, 皖西北高校

Abstract:

In order to determine the effect of application of N, P, K of sunflower in low middle yield field in Hetao irrigated area of Inner Mongolia. A 3-factor and 2-degree common rotary design was used to analyze and simulate the effect of application of N, P, K in Hetao irrigated area of Inner Mongolia. The results showed that application of N, P, K could greatly increase yield of oil sunflower in Hetao irrigated area, and it could be expressed by a 3-factor and 2-degree mathematical model. The highest yield was 4331.55 kg/hm2. The optimum proportion of N, P, K economic benefit was 6.91:3.31:1. According to the marginal profit value of fertilizer production, the cost of different fertilization could be obtained, and thus we could choose useless investment and high profit fertilization program.