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要想充分发挥黎优57的增产优势,必须根据它的特性,采取相应的栽培技术。我们根据几年栽培试验和各地生产实践,提出几项杂交稻黎优57的栽培措施。1.旱育壮秧,适时早播为充分发挥黎优57穗大、粒多的优势,必须旱育带蘖壮秧,插后才能早生快发,争取低位分蘖成穗。搞好旱育苗要坚持“两增两减”。“两增”一是增加营养土中的优质农肥,适当增加磷肥和氮肥;二是增加带膜炼苗日
In order to give full play to the yield advantage of Liyou 57, we must adopt appropriate cultivation techniques according to its characteristics. According to several years of cultivation experiments and production practices, we put forward some cultivation measures for hybrid rice Liyou 57. 1. Nursery strong seedling, timely sowing In order to give full play to the advantages of Liyou 57 spike, grain and more, we must dry with strong tillers, inserted after the quick onset of early, for low tillers into spikes. To do a good drought nursery should adhere to the “two increases and two reductions.” “Two increases” one is to increase the quality of nutrition in the soil of agricultural fertilizers, appropriate increase in phosphate fertilizer and nitrogen fertilizer; the second is to increase the film-thinning days