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不同的耕作方法造成不同的土壤松紧度和耕层构造,土壤的物理、化学性状也随之变化。土壤松紧度用土壤容重来衡量。为寻求河西灌区春小麦经济有效的耕作方法和最适耕作体系,为制定河西灌区经济合理的机械化耕作制度提供科学依据,我们在1981—1982年从两个方面进行了初步探讨:1.本区最适春小麦耕层土壤容重值及其对小麦生长发育和产量的影响。2.不同耕作方法对春小麦生长发育的影响。
Different tillage methods result in different degrees of soil tightness and plow structure, and the physical and chemical properties of the soil also change. Soil tightness is measured by soil bulk density. In order to find out the economic and effective farming methods and the optimal farming system for spring wheat in Hexi Irrigation Area, and to provide a scientific basis for the economic and mechanized farming system in Hexi Irrigation District, we conducted a preliminary study in 1981-1982 from two aspects: 1. Soil Bulk Density and Its Effect on Wheat Growth, Development and Yield in Suitable Spring Wheat. Effects of different tillage methods on the growth and development of spring wheat.