| 王栓全,刘冬梅.陕北山地新修梯田不同氮磷配比对小豆效应的研究[J].干旱地区农业研究,2004,(3):43~46 |
| 陕北山地新修梯田不同氮磷配比对小豆效应的研究 |
| ffects of N∶P ratio on adzuki bean in newly constructed terrace |
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| DOI：10.7606/j.issn.1000-7601.2004.03.11 |
| 中文关键词: 梯田 小豆 氮磷配比 陕北山地 |
| 英文关键词:errace adzuki bean N∶P ratio hilly land in North Shaanxi |
| 基金项目:中国科学院西部重点项目(KZCX1-06-02)；"十五"国家科技攻关计划(2001BA508B17)；陕西省科技攻关项目(2002K02-G09-08) |
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| 中文摘要: |
| 陕北山地新修梯田不同氮磷配比对小豆效应研究的结果表明:(1)N、P肥均对小豆产量效应极显著,以N为甚,且N、P之间互作非常显著;(2)N、P肥对小豆植株个体性状的正效应,主要是通过增加荚数而增加了粒数,使单粒重显著增加;(3)在N2(N112.5kg/hm2)和P2(P2O5 65.0kg/hm2)的施用量下,小豆水分利用效率最高;(4)陕北新修梯田小豆施肥中,综合考虑经济施肥和水分利用效率时,以N2和P2最为经济有效。 |
| 英文摘要: |
| The experiment was carried out to evaluate the effect of N∶P ratio on adzuki bean in newly constructed terrace in the hilly regions of North Shaanxi. The results showed that: (1)Both N and P fertilizer affected the yield of adzuki bean greatly, in which the effect of N was more remarkable, and the interaction between N and P fertilizer was also noticeable; (2)N and P fertilizer mainly improved beanpod formatting, and therefore the number of bean grains and the grain yield of single plant were clearly increased; (3)With moderate N and P input, the highest water use efficiency of adzuki bean could be achieved; (4)Moderate N and P input was available to improve the economic benefit of adzuki bean in newly built terrace. |
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