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春小麦的临冬播种,可以改善种用品质,提高植株的产量和抗病性。 但是春麦的临冬播种,并不经常保证能获得应有的效果。在我们这里条件下,主要的问题在于能否安全越冬。为了说明这个问题,根据本所的试验研究结果和农四团、农五团的大田调查资料,提出以下几个问题。 一、土壤盐渍化对越冬力的影响 土壤的盐渍化会降低种子在土壤中的生活力并引起死亡。大家知道,临冬播种的春麦,需在土壤中掩埋较久的时间,它们最易遭受盐害和其它不良外界条件的影响。我们在盐碱土上进行了春麦春播及临冬播对比试验(表1):
Winter wheat sowing winter, you can improve the use of quality, improve plant yield and disease resistance. However, the winter planting of spring wheat does not always guarantee that it will achieve the desired result. Under our conditions, the main issue is whether we can safely wintering. In order to illustrate this issue, the following issues were raised according to the results of the pilot study and field survey data of the Nongsun Tuan and Nongwu-5 Regiments. First, the impact of soil salinization on winter power Salinization of soil will reduce the viability of the seeds in the soil and cause death. As we all know, the spring wheat planted in winter has to be buried in the soil for a long time, and they are most likely to be affected by salt damage and other undesirable external conditions. We conducted a spring-sown and spring-winter sowing comparisons on saline-alkali soil (Table 1):