广西壮族自治区灵山县,在去年晚稻和今年早稻生产中,广泛采用根外喷磷的措施,经过对比试验,在相同的生产条件下,一般每亩可增产三十至五十斤。灵山县对水稻广泛采取根外喷磷的措施,是在去年晚稻抗御“寒露风”开始的。去年正当全县四十万亩晚稻抽穗扬花时,连续十天遭受“寒露风”的袭击,占晚稻面积百分之七十的迟熟品种受害较重。丰塘公社丰塘大队沙荫生产队科研小组,在对受灾禾苗灌水、喷水中, In Lingshan County of Guangxi Zhuang Autonomous Region, in late last year and this year’s early rice production, the measures of spraying phosphorus outside the plant were widely adopted. After the comparative test, under the same production conditions, an average yield of 30 to 50 jin per mu could be increased. Lingshan County, extensive use of rice to root out of phosphorus measures, is to resist late last year, “Cold Dew” began. Last year, when the county’s 400,000-acre late rice was heading for flowering and plucking, it suffered “cold dew wind” attacks for 10 consecutive days, accounting for more than 70% of late-maturing rice varieties in the late rice area. Feng Tong commune Fengtang brigade Shayin production team research group, in the affected grasses irrigation, water,