云南农业大学学报2012，Vol.27Issue(1)：117-122,6.DOI:10.3969/j.issn.1004-390X(n).2012.01.022
云南省水稻生产中的肥料偏生产力分析
Analysis of Partial Factor Productivity(PFP)of Rice Production in Yunnan Province
摘要
Abstract
Partial factor productivity (PFP) is a ratio of crop yield and fertilization rate for a certain fertilizer. It reflects the all overall status of soil fertility and fertilizer use. In this study, 360 rice cultivating farmers distributing in 20 counties, 12 prefectures in Yunnan Province were visited during 2008 ~ 2009, the status of current fertilizer application, PFP and rational fertilization were discussed. Results indicated the average fertilization rate was 488. 3kg/hm2, the inputs of N, P2O5 and K20 were 326. 3, 77. 7 and 84. 3 kg/hm2, respectively. Chemical fertilizer contributed to 74. 4% of total application. The total fertilizer PFP of rice was 24. 2 kg/kg, PFP for N, P and K fertilizers were 36. 5, 152. 3 and 97. 1 kg/kg, respectively. In comparison with current rational recommended rate of 150 ~ 250kg/hm2 N, 45 ~90kg/hm2 P2O5, and 90 ~ 120kg/hm2 K2O, only 24. 4% , 36. 6% and 10. 3% families could apply N, P and K fertilizers properly in rice production in Yunnan Province.关键词
水稻/施肥现状/肥料偏生产力Key words
rice/the current status of fertilization/partial factor productivity分类
农业科学引用本文复制引用
刘润梅,范茂攀,汤利,郑毅..云南省水稻生产中的肥料偏生产力分析[J].云南农业大学学报,2012,27(1):117-122,6.基金项目
公益性行业(农业)科研专项(200803030)资助. （农业）
