云南省马铃薯施肥量与化肥偏生产力的关系研究
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国家自然科学基金项目(31260504,41361065)和农业部公益性行业科研专项(201103003)共同资助


Relationship between fertilization rate and fertilizer partial factor productivity in potato production in Yunnan Province
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    摘要:

    化肥偏生产力(Partial factor productivity,PFP)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,肥料施用量对化肥偏生产力会产生影响。在对云南省11个州/市13个县/市共212个马铃薯种植农户进行的问卷调查基础上,探讨了马铃薯的化肥施用量与化肥偏生产力的关系,并对农户施肥合理性进行了评价。结果表明,云南省马铃薯施氮量为N 30 ~ 1 005 kg hm-2,平均285 kg hm-2;施磷量为P2O510.5 ~ 735.0 kg hm-2,平均149.1 kg hm-2;施钾量为K2O 7.5 ~ 466.5 kg hm-2,平均111.9 kg hm-2。马铃薯化肥偏生产力为82.3 kg kg-1,其中氮(N)、磷(P2O5)和钾肥(K2O)的偏生产力分别为158.7、278.0和416.3 kg kg-1。施氮、磷、钾量与氮、磷、钾肥PFP之间、化肥总量与总化肥偏生产力之间均呈负幂相关,相关系数分别为0.873﹡﹡、0.872﹡﹡、0.801﹡﹡和0.805﹡﹡。分别以N、P2O5、K2O投入量150 ~ 250 kg hm-2、45 ~ 90 kg hm-2和90 ~ 120 kg hm-2作为合理施肥范围,马铃薯合理施氮、磷、钾的农户分别占总调查农户的21.6%、30.7%和10.8%。

    Abstract:

    Partial factor productivity (PFP) of fertilizer is an important index reflecting overall effect of soil fertility level and fertilizer application rate. Hence, fertilizer application rate has some impact on partial factor productivity of the fertilizer. Based on the questionnaire distributed to 212 potato farmers in 13 counties and 11 prefectures of Yunnan during 2008~2009, relationship between fertilization rate and PFP of the fertilizer in potato production was explored and fertilization of the farmers was evaluated in rationality. Results indicate that on average, N 285 kg hm-2, P2O5 149.1 kg hm-2, and K 2 O 111.9 kg hm-2 was applied in potato production and in practice fertilization rate varied in the range of N 30~1 005 kg hm-2, P2O510.5~735.0 kg hm-2and K2 O 7.5~466.5 kg hm-2, and the PFP of the fertilizers in potato production was 82.3 kg kg-1, and the PFP of N, P and K fertilizers was 158.7 kg kg-1, 278.0 kg kg-1 and 416.3 kg kg-1, respectively. The application rate of N, P and K was in negative exponential relationship with their respective PFP, and so was the application rate of the fertilizers in all with the total PFP, with correlation coefficient being 0.873﹡﹡, 0.872﹡﹡, 0.801﹡﹡ and 0.805﹡﹡respectively. When the application rate of N 150~250 kg hm-2, P2O545~90 kg hm-2, and K2 O 90~120 kg hm-2, was set as the rational range of fertilization rate, only 21.6%, 30.7% and 10.8% of the farmers in the survey were termed rational in N, P and K fertilizer application, respectively, in potato production in Yunnan province.

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刘润梅,范茂攀,付云章,周 军,郑 毅,汤 利.云南省马铃薯施肥量与化肥偏生产力的关系研究[J].土壤学报,2014,51(4):753-760. DOI:10.11766/trxb201310250483 Liu Runmei, Fan Maopan, Fu Yunzhang, Zhou Jun, Zheng Yi, Tang Li. Relationship between fertilization rate and fertilizer partial factor productivity in potato production in Yunnan Province[J]. Acta Pedologica Sinica,2014,51(4):753-760.

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  • 收稿日期:2013-10-25
  • 最后修改日期:2014-04-17
  • 录用日期:2014-05-05
  • 在线发布日期: 2014-05-06
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