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一、喷磷:广西壮族自治区灵山县实践,后季稻抽穗扬花期间喷磷可以提早2～3天垂头,而且千粒重也有所提高,对防止水稻翘穗,增加粒重的效果良好。1973年在后季稻抽穗期间,灵山县连续十天遭受“寒露风”袭击,占晚稻70%的迟熟品种,受害较重,他们及时采用了喷磷措施,晚稻不仅不减产,反而比1972年增产4000多万斤,增长一成。
First, the phosphorus: Lingshan County, Guangxi Zhuang Autonomous Region practice, the latter quarter of rice flowering and flowering can be early 2 to 3 days Defective, and 1000-grain weight has also been increased, to prevent rice Qiao spike, increase the effect of grain weight good. In 1973, during the heading season of later season rice, Lingshan County was hit by “cold dew wind” for ten consecutive days, accounting for 70% of the late rice varieties, which were seriously injured. They timely adopted the phosphorus spraying measures. Late rice not only did not reduce production, Annual yield more than 4,000 kilograms, an increase of 10%.