我们于一九七八年开始此项研究工作,前两年已初步明确:在“培育壮苗,整个小麦生育期间保持土壤含水量相当于田间持水量的75％左右,就能有效地减轻干热风危害”的基础上,今年进一步研究了在模拟干热风条件下,不同土壤水分对小麦生理功能和粒重的影响,为更有效地防御干热风提供理论依据。现总结于后: We started this research work in 1978. The first two years have initially made it clear that in “cultivating strong seedlings and keeping the soil water content equivalent to about 75% of the field capacity during the whole wheat growing period, we can effectively reduce the dry Hot wind damage ”, based on the further study this year under the simulated dry and hot air conditions, the impact of different soil moisture on wheat physiological function and grain weight, in order to provide a theoretical basis for more effective prevention of dry hot air. Are summarized in the future: