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我场对春小麦播种期问题始终存在着争论。六十年代,播期曾定在五月中下旬,甚至六月二日播种也能获得较好收成。随着生产的发展,尤其是种植抗病品种东农111以后,播种期逐渐向前推移至五月上、中旬。近几年来又在四月中下旬播种。还有人主张在土壤化冻3～4厘米(即四月上旬)即行播种。为了找出本地区适时播种期的规律,我
My field of spring wheat sowing period there is always controversy. In the 1960s, the sowing date was scheduled for mid-to-late May and even on June 2 to achieve better yields. With the development of production, especially after the planting of Dongnong 111, a disease-resistant variety, the sowing period gradually progressed to mid-May and mid-May. In recent years, sowing in late April. Others advocate that the soil should be sown 3 to 4 centimeters (ie in early April). In order to find out the law of timely sowing time in this area, I