关键词: 分析, 分析

Abstract: In order to guide the farmers' fertilization, the farmer household survey on fertilization of maize was carried out in Eryuan, Longyang and Yongsheng, Yunnan Province. Based on fertilization survey of maize from selecting farmer household and analyzing partial factor productivity (PFP), the results showed that: most of maize fertilization were chemical fertilizer, and only 12.3%-14.2% were organic fertilizer in the West of Yunnan Province. The rates of chemical fertilizer, yield and PEP were 535.0 kg/hm2, 8962.5 kg/hm2 and 23.9 kg/kg in Eryuan, 567.8 kg/hm2, 6986.8 kg/hm2 and 15.5 kg/kg in Longyang, 505.1 kg/hm2 and 7923.2 kg/kg and 24.3 kg/kg in Yongsheng, respectively. Taking 150-250 kg/hm2 as the recommended amount of nitrogen fertilizers, 18.8% of farmer households were in the rational applying rate, and 70.3% surpassed recommended amount of fertilizer. At the same time, when taking 45-135 kg/hm2 as the recommended amount of phosphorus fertilizers, 29.7% of farmer households were lower recommendation, and 20.3% exceed recommend amount. And, 26.6% of farmer households lied in the rational applying rate, 51.6% lower the recommendation if taking 30-90 kg/hm2 as the recommended amount of potassium fertilizer. So the decrease of nitrogen fertilization amount would improve the PFP of nitrogen on maize. The increase of phosphorus and potassium fertilizer input would improve production, to achieve higher PFP of phosphorus and potassium on maize.