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兵团农一师阿拉尔垦区,每年冬麦越冬死亡10—15％,有的条田死亡30—50％。为了摸清本垦区冬麦越冬死亡的原因,以便采取相应的防御措施,我们于1978年冬至1981年春连续进行了试验和调查,结果如下。 一、冬麦越冬保苗与气温的关系 我们连续三年用土块返青法,定期检查冬麦的越冬情况,以确定冬麦越冬保苗对于温度的依赖关系。试验地土壤为沙土,盐碱轻微,供试品种为新冬2号。每年均于10月12日播种,播深4—5厘米,播种时每亩以
Corps Nongyi Alar cultivated area, winter wheat winter winters 10-15%, and some field death 30-50%. In order to find out the reasons for winter wheat winter overwintering in this reclamation area in order to take corresponding defensive measures, we carried out continuous tests and surveys in the winter of 1978 to the spring of 1981 with the following results. First, the winter wheat winter seedling protection and the relationship between the temperature We use the soil back to the green method for three consecutive years, regular inspection of winter wheat winter conditions to determine winter wheat winter seedling temperature dependence. The test soil was sandy soil with a slight salinization. The tested variety was Xin Dong No.2. Every year on October 12 sowing, sowing 4-5 cm, sown per acre