渭北旱塬西部春玉米产量与耗水量关系研究

中国农业气象

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渭北旱塬西部春玉米产量与耗水量关系研究

刘文兆;李玉山;

中国科学院水利部西北水土保持研究所,中国科学院水利部西北水土保持研究所,

出版日期:1990-12-10 发布日期:1990-12-10

A STUDY ON THE RELATIONSHIP BETWEEN SPRING CORN YIELDS AND CONSUMPTIVE USE OF WATER IN THE WEST OF WEI-BEI RAINFED TABLELAND

Liu Wenzhao Li Yushan (Northwestern Institute of Soil and Water Conservation, Academia Sinica)

Online:1990-12-10 Published:1990-12-10

摘要/Abstract

摘要： 研究表明,在试验年份及所给条件下,不同水分处理对产量的影响达显著水平,不同水分水平处理下的耗水量与产量间存在着抛物线型关系,这种关系既在高肥条件下存在,也在低肥条件下存在,而相对耗水量与相对产量的关系在不同肥力条件下是一致的,即:yy=-4.292+10.586xr-5.293xr~2式中yr:相对产量;xr:相对耗水量.

关键词: NULL

Abstract: Based on the data of field experiments in Changwu County, located in the west of weibei tableland, this paper deals with the relationship between corn yields and consumptive use of water. The preliminary studies showt1. There is a significant difference at 1 percent level for corn yields among different treatments of water supply.2. At various level of water treatments, there is a parabola relationship beteen yields and consumptive use of water.3. Under different fertility levels, the relationships between relative crop yields and relative consumptive use of water are identical, that is, Yr =-4.292+10.586Xr-5.293Xr~2 where Yr—relative crop yields Xr—relative consumptive use of water

Key words: NULL, NULL

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.

Liu Wenzhao Li Yushan (Northwestern Institute of Soil and Water Conservation, Academia Sinica). A STUDY ON THE RELATIONSHIP BETWEEN SPRING CORN YIELDS AND CONSUMPTIVE USE OF WATER IN THE WEST OF WEI-BEI RAINFED TABLELAND[J]. Chinese Journal of Agrometeorology.

渭北旱塬西部春玉米产量与耗水量关系研究

A STUDY ON THE RELATIONSHIP BETWEEN SPRING CORN YIELDS AND CONSUMPTIVE USE OF WATER IN THE WEST OF WEI-BEI RAINFED TABLELAND

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