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冬小麦能否安全越冬,除取决于冬季积雪等情况外,还与冬前苗情有直接关系。冬前麦苗强弱,主要决定于冬前有效积温和土壤肥力。1981—1982年,我们就不同种肥对冬麦越冬及产量的影响进行了试验研究。 试验地前茬为苜蓿,伏耕,土质中壤,播前有机质含量为1.005％,碱解氮12.8％,速效磷3.0ppm。试验用的种肥为尿素和三料过磷酸钙,按不同配比和不同施量混于种
Winter wheat can be safe and wintering, except depending on the winter snow and other conditions, but also with the winter seedlings have a direct relationship. Wheat seedling strength before winter, mainly determined by the winter before the effective accumulated temperature and soil fertility. In 1981-1982, we conducted an experimental study on the effects of different kinds of fertilizers on winter wintering and yield of winter wheat. The former crop was alfalfa, volt-plow and soil medium soils. The content of organic matter before sowing was 1.005%, the content of alkali-hydrolyzed nitrogen was 12.8% and the content of available-phosphorus was 3.0ppm. Test fertilizer for the urea and three superphosphate, according to the different ratio and different doses of mixed species