摘要
在农户抽样调查数据的基础上,分析了2008年四川省萝卜养分管理现状。调查结果表明,四川省萝卜养分管理存在许多不合理之处。N、P养分投入普遍偏高,全省N、P养分平均投入量为247.1 kg/hm2与115.2 kg/hm2;K素投入严重不足,K素平均用量为119.8 kg/hm2。肥料品种结构、施肥方法及施肥量确定依据不合理。55.1%～75.1%的农户采用肥料穴施,60.0%～67.2%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。
Current status and problems of fertilizers on turnip were analyzed based on the data from farmer＇s investigation in Sichuan Province and some problems were found in nutrient management. Total amounts of nitrogen and phosphorus were superfluous. Average amounts of nitrogen and phosphorus fertilizers were 247.1 kg/hm2 and 115.2 kg/hm2, respectively; but potassium was insufficient, average amount of potassium was 119.8 kg/hm2. Fertilizer structure, application method and reason were unreasonable, 55.1% - 75.1% of farmers adopted to hole application method, and 60.0% - 67.2% of farmers used fertilizer with conventional experience. In the future, increasing nutrient efficiency and decreasing pollution of fertilizers should be the principal aim of fertilization.
出处
《土壤》
CAS
CSCD
北大核心
2010年第5期828-832,共5页
Soils
基金
公益性行业科研专项(2008326)
四川省财政育种工程青年基金项目(2008QNJJ-016)资助
关键词
萝卜
施肥
四川省
Turnip, Fertilization, Problems, Sichuan Province
