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我省旱田地的土壤水分(低洼地和东部地区除外)经常不能满足作物生长发育的需要。如何提高旱田耕地土壤水分是农业生产获得高产的保证条件。我们通过多年的研究与调查,只要采取人为的合理耕作措施,可以有效地贮存天然水、保住土壤水、导引土壤下层水,使之土壤耕层水分能够经常处于平衡之中,可以协调作物需水与土壤供水的矛盾。一、加深耕层贮存天然水土壤本身是一个天然的贮水库,为了发挥容水库的作用,可以通过耕作措施加深耕层,扩大它的体积,从而增强它的蓄水能力。据我们于河淤地上试验结果,耕层由15厘米加深到33厘米,土壤容重减少0.1～0.2克/立方厘米,孔隙度增加3～8%,透水速度增加0.5～
Soil moisture in dryland areas in our province (except low and eastern areas) often can not meet the needs of crop growth and development. How to improve soil moisture in dry land is the guarantee for high yield of agricultural production. Through years of research and investigation, we can naturally store natural water, keep the soil water, and guide the subterranean water so that the soil moisture in the soil can be constantly balanced, so long as man-made reasonable tillage measures can be taken to coordinate crop demand Water and soil water conflicts. First, to deepen the plow storage Natural water itself is a natural storage reservoir, in order to play the role of capacity reservoir, farming practices can deepen the plow, expanding its volume, thereby enhancing its water storage capacity. According to our test results on the river silt, the topsoil is deepened from 15 cm to 33 cm, the soil bulk density is reduced by 0.1 to 0.2 g / cm3, the porosity is increased by 3 to 8%, and the water permeation rate is increased by 0.5 ~