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土壤水分是土壤肥力最重要的因素之一.对旱作农业来说,土壤水分状况是制约作物生育和产量的主要限制因素之一.黄土高原南部广阔的渭北旱塬地区,小麦是主要作物,约占耕地面积的一半左右.研究和分析旱塬小麦的耗水规律及其与土壤水分状况的关系,对正确指导农业生产,提高作物产量都有重要意义.本文是在年平均降水量632毫米的武功旱塬上,通过1983年以来,两个小麦生产年度的观测试验资料的一个初步总结.
Soil moisture is one of the most important factors of soil fertility.For dry farming, the soil moisture status is one of the main restricting factors of crop growth and yield.Wide wheat is the main crop in the vast Weibei dry land in the southern Loess Plateau , Accounting for about half of cultivated land area.Researching and analyzing the water consumption law of dryland wheat and its relationship with soil water status are of great significance for correctly guiding agricultural production and increasing crop yield.This paper is based on the average annual rainfall of 632 A preliminary summary of the observations of the two wheat production years since 1983 on the drylands of Wugong drylands.