为探讨桂中双季稻区磷肥施用效应,2009年在广西进行了不同施磷水平对该地区早稻与晚稻的肥效试验。结果表明,与不施磷(P0)相比,早稻施磷处理产量平均提高9.83%,晚稻产量平均提高16.03%,而且当施P2O5量≤525 kg/hm2时,水稻产量随着施磷水平的增加而提高。可见,在桂中双季稻区适当增施磷肥是保证水稻高产稳产的主要措施之一。 In order to explore the effect of phosphate fertilizer application in the double cropping rice in Guangxi province, the fertilizer efficiency experiment of early and late rice in different regions in Guangxi in 2009 was conducted. The results showed that the yield of early rice increased by 9.83% and the average yield of late rice increased by 16.03% compared with no phosphorus application (P0). When the amount of P2O5 was less than or equal to525 kg / hm2, the yield of rice increased with the phosphorus application Increase and increase. It can be seen that proper application of phosphate fertilizer in double cropping rice in Guangxi is one of the main measures to ensure high and stable yield of rice.