[1]刘文兆,李玉山.渭北旱塬西部作物水肥产量耦合效应研究[J].水土保持研究,2003,10(01):12-15.
　LIU Wen-zhao,LI Yu-shan.Coupled Effect for Supplies of Water and Nutrients to Crop in the West of Weibei Rainfed Tableland[J].Research of Soil and Water Conservation,2003,10(01):12-15.
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渭北旱塬西部作物水肥产量耦合效应研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 10 期数: 2003年01期 页码: 12-15 栏目: 出版日期: 1900-01-01
Title:
Coupled Effect for Supplies of Water and Nutrients to Crop in the West of Weibei Rainfed Tableland
作者:
刘文兆1,2, 李玉山1,2
1. 中国科学院水利部水土保持研究所, 陕西杨陵 712100;
2. 西北农林科技大学, 陕西杨陵 712100
Author(s):
LIU Wen-zhao1,2, LI Yu-shan1,2
1. Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling 712100, Shaanxi, China;
2. Northwestern Sci-tech University of Agriculture and Forestry, Yangling 712100, Shaanxi, China
关键词:
作物水肥产量效应; 节水农业; 水分利用效率; 玉米; 渭北旱塬
Keywords:
crop yield response to water and fertilizer supply; water saving agriculture; water use efficiency; maize; Weibei rainfed tableland
分类号:
S152.7;S158.3
摘要:
通过在渭北旱塬西部长武塬区所进行的玉米水肥两因子五水平试验，就作物水肥产量耦合效应进行了研究。在给出玉米水-肥生产函数的基础上，推出了养分优化供应条件下玉米水分生产函数，阐明了水肥供应坐标面上产量、耗水量与水分利用效率等值线分布特征，并应用水分生产弹性系数，以产量与水分利用效率为目标，探讨了作物水肥优化耦合区域及其几何特征。
Abstract:
The coupled effect for supplies of water and nutrients on maize was studied through an experiment of water and fertilizer factors with respective five levels in Changwu, Weibei rainfed tableland.Based on the empirical functions of maize yield (Y) and water consumption (ET) under different regimes of water and fertilizer supplies, the paper produced a maize water production function with dynamic optimal management of fertilizer supply, and clarified the characteristics of isograms of maize yield and water consumption and water use efficiency in the coordinate plain of water and nutrient supply.The coupled zones for optimum supplies of water and nutrients to maize, for high yield and water use efficiency, were obtained by the elasticity of water production (EWP), and the geometrical features of the coupled zones were discussed.

参考文献/References:

[1] Liu W Z, Y S Li.Crop yield response to water and fertilizer in loess tableland of China:a field research[J].Pedosphere, 1995, 5(3):259-266.
[2] Liu W Z, D J Hunsaker, Y S Li, et al.Interrelations of yield, evapotranspiration, and water use efficiency from marginal analysis of water production functions[J].Agricultural Water Management, 2002, 56(2):143-151.
[3] 刘文兆, 李玉山.渭北旱塬西部春玉米产量与耗水量关系研究[J].中国农业气象, 1990.11(4):14-18.
[4] 刘文兆, 李玉山, 李生秀.作物水肥优化耦合区域的图形表达及其特征[J].农业工程学报, 2002.18 (6):1-3.
[5] 刘文兆, 苏敏, 徐宣斌, 等.养分优化管理条件下的作物水分生产函数[J].中国生态农业学报, 2001.(1):37-39.
[6] 刘文兆.作物生产、水分消耗与水分利用效率间的动态联系[J].自然资源学报1998.13(1):23-27.
[7] 李开元, 刘文兆, 郭明航, 等.渭北旱塬春玉米水肥-产量效应的研究[A].见:长武王东沟高效生态经济系统综合研究[M].北京:科学技术文献出版社, 1991.126-129.
[8] 李玉山, 张孝忠, 郭明航.黄土高原南部作物水肥产量效应的田间研究[J].土壤学报, 1990, 27(1):1-7.
[9] 李玉山, 郭明航, 董大学, 等.渭北旱塬旱作水分产量潜势与水-肥-产量关系[A].见:李玉山, 苏陕民.长武王东沟高效生态经济系统综合研究[M].北京:科学技术文献出版社, 1991.115-125.

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备注/Memo

收稿日期:2002-11-25
基金项目:国家自然科学基金项目（49890330）；国家科技攻关项目（2001BA508B18）
作者简介:刘文兆（1960- ），男，博士，研究员，博导，从事节水农业与水文生态研究。

更新日期/Last Update: 1900-01-01