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近年来,我县在施肥不足或土壤保肥力较差的稻田,于抽穗始期大力推广看苗施粒肥技术,取得了显著的增产效果,通过对杂交水稻看苗施粒肥的多年、多点大区对比试验,结果表明:施粒肥比不施的增产7—10％。一、看苗施粒肥的作用 1、提高结实率、增加千粒重。县农技站试验观察:杂交水稻在施用粒肥后,延长了上部三片叶的功能期,增长了光合作用的时间,使制造的有机物质增多,谷粒充实饱满。考种结果表明:
In recent years, my county in inadequate fertilization or poor soil fertility paddy, vigorously promote seedling fertilizer at seedling stage to see the technology and achieved significant yield increase, through the hybrid rice seedling fertilizer to see seedlings for many years, more areas The comparison test shows that the yield of grain fertilizer is 7-10% higher than that of no fertilizer application. First, to see the role of seedling fertilizer Fertilizer 1, improve seed setting, increase 1000 grain weight. Experimental observation of county agro-technical station: Hybrid rice lengthens the functional period of the upper three leaves after the application of granulation fertilizer, increases the time of photosynthesis, increases the amount of organic substances produced, and the grain is full and full. Test kinds of results show that: