Investigation And Nalysis On Fertilization Status And Partial Factor Productivity Of The Main Table Grape Production Regions In Yunnan Province

Based on the planting farmers’ questionnaire of main stable grape types in five main stable grape producing areas in Yunnan province from 2015 to 2016, the thesis studies the fertilizer application status, Partial factor productivity, the relationship between fertilizer application rate and Partial factor productivity, the relationship between fertilizer application rate and input-output ratio in the producing process of stable grapes in the main stable grape producing areas in Yunnan province. The purpose of the analysis is to find the existing fertilization problems, put forward suggestions and guide farmers to fertilize.The study results show that:(1) The average fertilization amount of Summer Black Grapes in the main producing areas are 54.0kg/667 ㎡、37.0kg/667 ㎡ respectively; The average fertilization amount of Red Globe Grapes are 64.4kg/667 ㎡、40.0kg/667 ㎡、62.9kg/667 ㎡ respectively. Even if it’s the same type of grapes, the fertilization amount in two regions is greatly different.(2) The partial fertilizer productivity of Summer black Grapes in the main producing areas are 40.7kg/kg、44.2kg/kg respectively; The fertilizer partial productivity of Red Globe Grapes in the main producing areas are 46.4kg/kg、69.4kg/kg、42.4kg/kg respectively.(3) Some farmers thought that during fertilization, the more nutrients the better, they thought that increasing the nutrients in the fertilizer will bring affect the grape plants in a good way an obtain the best yield, In grape shoots, flowering, coloring, swelling, pick fruit after several stages, only giving universal compound fertilizer(e.g., 15-15-15) but they overlooked the actual situation in grape production, the nitrogen application of Summer Black Grapes in the main producing areas were higher than the recommended amount by0.813 times and 0.426 times respectively; the phosphorus application were 0.383 times and 0.244 times higher than recommended respectively, and the potassium application was only 29%—36% of the recommended amount; Excluding the Binchuan Luliang producing area which was close to the recommended amount, the nitrogen application of the other producing areas were 0.073 times higher than recommended; Excluding the Binchuan producing area which was close to the recommended amount, the phosphorus application of the other two producing areas only 47% and 0.333 times higher than recommended, and Excluding the Yuanmou producing area which was close to the recommended amount, the potassium application of the two other areas applied only 22%—49% of the recommended amount. Under such circumstances, the production decreased.