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种子是高产的重要因素,特别是水稻“三系”配套成功,利用杂交优势,为进一步提高单位面积产量,开辟了新途径。为了摸清杂交稻的高产规律,几年来我们进行了高产栽培技术的探讨,总结了一些经验,1984年麦茬稻取得了1500斤的高产,1985年正茬、麦茬分别获得了900斤,1100斤的高产,比常规稻450斤,增产80％以上。现将威优35,威优64两杂交稻的主要栽培技术要点介绍如下: 一适时播种、培育壮秧。壮秧的概念是早、齐、全、壮,早就是指能在安全高产的插秧时期保证适期插秧,秧龄不超过35天。全就是指要全苗,如果成苗率很低,也就完不成本田
Seeds are an important factor of high yield. Especially the successful matching of the “three lines” of rice and the utilization of hybrid advantages have opened up new avenues for further increasing output per unit area. In order to find out the law of high yield of hybrid rice, we have carried out the research on high-yielding cultivation techniques in recent years and summed up some experiences. In 1984, wheat stubble obtained 1500 kg of high yield. In 1985, stubble and stubble obtained 900 kg and 1100 kg respectively High yield, 450 kg more than conventional rice, yield more than 80%. Will Weiyou 35, Weiyou 64 two hybrid rice main cultivation techniques are as follows: A timely sowing, nurturing strong seedlings. The concept of strong seedlings is early, Qi, all, Zhuang, long ago refers to the safe and high yield during the transplanting to ensure proper transplanting, seedling age no more than 35 days. All refers to the whole seedlings, if the seedling rate is very low, it can not finish the field