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早单八是早熟晚粳新品种,具有耐肥抗倒、产量高和成熟早等优点,但后期常出现早衰现象,表现为壳色淡暗无光,熟相差,充实度不足,在冷害较早年份,易造成青枯逼熟,严重影响产量和品质。为探讨早单八早衰的原因及预防途径,我们于1983、1984两年进行了试验,结果如下: 材料和方法 本试验采用后期熟相有较大差异的苏粳2号和早单八作供试材料,进行肥料试验处理。试验田土壤肥力中等偏上,试验采用裂区设
Early single eight is a new early maturing japonica variety with the advantages of anti-fertility and lodging resistance, high yield and early maturity, but the phenomenon of premature aging often appears late, showing the shell color dark and dull, cooked difference, lack of fullness, Early years, easy to cause forced-drying, seriously affecting the yield and quality. In order to explore the causes and preventive ways of early single eight premature senility, we conducted the test in 1983 and 1984, the results are as follows: Materials and Methods In this experiment, Sujing No.2 Test materials, fertilizer test treatment. Soil fertility in the experimental field is moderately high, and the experiment uses a split zone