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在农户抽样调查数据的基础上,分析了2008年四川省番茄养分管理现状。调查结果表明,四川省番茄养分管理存在许多不合理之处,氮素施用普遍偏高,全省平均用量269.1kghm-2,有67.3%的农户氮素施用过量,仅有25.5%的农户施氮合理。磷素、钾素投入量严重不足,全省磷、钾养分平均投入量分别为164.5kghm-2和123.3kghm-2,49.1%的农户磷素施用偏低,65.5%的农户钾素施用不足。肥料品种结构、施肥方法及施肥量确定依据不合理。52.4%～80.0%的农户采用肥料穴施,8.5%～74.4%的农户仍按照习惯确定施肥量。四川省今后提高养分效率、减少化肥污染需要重点解决这些问题。
Based on the sample survey data of farmers, the status of tomato nutrient management in Sichuan Province in 2008 was analyzed. The results showed that there were many irrationalities in tomato nutrient management in Sichuan Province, and the nitrogen application was generally high. The average utilization rate of the province was 269.1 kghm-2, with 67.3% of farmers using nitrogen excess and only 25.5% of farmers applying nitrogen reasonable. The input of phosphorus and potassium was seriously insufficient. The average input of phosphorus and potassium in the province was 164.5kghm-2 and 123.3kghm-2,49.1%, respectively, while the application of phosphorus was low in 65.5% of households. The structure of fertilizer varieties, fertilization methods and the amount of fertilizer to determine the basis unreasonable. 52.4% ~ 80.0% of farmers use fertilizer points facilities, and 8.5% ~ 74.4% of farmers still use the habit to determine the amount of fertilizer. Sichuan Province in the future to improve nutrient efficiency and reduce fertilizer pollution should focus on solving these problems.