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

作　　者：刘润梅[1] 范茂攀[1] 汤利[1] 郑毅[1,2] 

机构地区：[1]云南农业大学资源与环境学院,云南昆明650201 [2]西南林业大学,云南昆明650224

出　　处：《云南农业大学学报（自然科学版）》2012年第1期117-122,共6页Journal of Yunnan Agricultural University:Natural Science

基　　金：公益性行业(农业)科研专项(200803030)资助

摘　　要：肥料偏生产力(PFP)是指施用某一特定肥料下的作物产量与施肥量的比值,是反映当地土壤基础养分水平和化肥施用量综合效应的重要指标。本文在2008～2009对云南省12个州(市)20个县(市)共360个农户进行的问卷调查基础上,探讨了云南省水稻生产中的肥料施用现状、肥料偏生产力以及农户施肥合理性。结果表明,云南省在水稻生产中总养分平均投入量为488.3 kg/hm2,其中氮(N)、磷(P2O5)和钾(K2O)投入量分别为326.3,77.7,84.3 kg/hm2;化肥占总养分的比例为74.4%;水稻的肥料偏生产力为24.2 kg/kg,其中N,P2O5,K2O的肥料偏生产力分别为36.5,152.3,97.1 kg/kg。以N,P2O5,K2O投入量分别为150～250,45～90,90～120 kg/hm2作为合理施肥范围,则云南省水稻合理施氮、磷、钾的农户分别占调查农户的24.4%,36.6%,10.3%。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 culti- vating 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, P205 and K20 were 326.3, 77.7 and 84. 3 kg/hm2, respectively. Chemical fertilizer contributed to 74. 4% of total appli- cation. 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 P205, and 90 - 120kg/hm2 K20, 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 

分 类 号：S511.062[农业科学—作物学]