黄绵土坡耕地大豆的水肥产量效应

应用生态学报 ›› 2003, Vol. ›› Issue (2): 211-214.

黄绵土坡耕地大豆的水肥产量效应

陈洪松^1,2, 邵明安¹, 张兴昌¹

1. 中国科学院水利部水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室, 杨凌 712100;
2. 西北农林科技大学, 杨凌 712100

收稿日期:2001-02-16 修回日期:2001-06-28 出版日期:2003-02-15
通讯作者: 陈洪松,男,1973年生,博士生,主要从事土壤物理与水土保持方面研究,发表论文10余篇.E-mail:hbchs@163.com.
基金资助:
中国科学院知识创新工程(KZCX2411);国家杰出青年科学基金资助项目(40025106)

Effect of soil water and fertilizer on soybean yield on loess slopeland

CHEN Hongsong^1,2, SHAO Ming'an¹, ZHANG Xingchang ¹

1. State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, 712100, China;
2. Northwest Science and Technology University of Agriculture and Forestry, Yangling, 712100, China

Received:2001-02-16 Revised:2001-06-28 Online:2003-02-15

摘要/Abstract

摘要： 研究了不同施肥量(N、P配施)下黄绵土坡耕地大豆的水肥产量效应.结果表明,水分利用效率(WUE)与作物产量(Y)正相关,Y=0.0017+0.0035WUE.单施磷时,作物产量和WUE随磷的增加而增大;单施氮时,作物产量和WUE随氮的增加先增大后降低,表明施用氮应该配合施用一定量的磷.施肥能显著提高作物产量和WUE,与不施肥相比,施肥时作物产量和WUE分别提高了86.76%～470.16%和69.64%～438.47%.与单施氮、磷相比,氮、磷合理配施能提高作物产量和水分利用效率,适宜的N、P(P₂O₅)配施比例为1.3:1.

Abstract: Studies on the effect of soil water and fertilizer on soybean yield on loess slope farmland showed that soybean yield (Y) increased linearly with the increase of water use efficiency (WUE).Soybean yield and WUE increase with the increase of Pfertilizer when Pfertilizer was applied alone,but increased firstly and then decreased with the increase of N fertilizer when N fertilizer was applied alone. Therefore, N fertilizer should be applied with Pfertilizer. Compared to no fertilizer, fertilizer could significantly increase soybean yield and WUE by 86.76%～470.16% and 69.64%～438.47%, respectively. Acombined application of N and P fertilizers could increase more soybean yield and WUE than applied each of them alone, and the rational ratio of N and P(P₂O₅) was 1.3:1.

中图分类号:

S147.2

陈洪松, 邵明安, 张兴昌. 黄绵土坡耕地大豆的水肥产量效应[J]. 应用生态学报, 2003, (2): 211-214.

CHEN Hongsong, SHAO Ming'an, ZHANG Xingchang . Effect of soil water and fertilizer on soybean yield on loess slopeland[J]. Chinese Journal of Applied Ecology, 2003, (2): 211-214.

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