贵州铜仁地区水稻缺素试验  

Effects of Different Nutrient Contents in Yellow Paddy Soil on Rice Yield in Tongren Prefecture of Guizhou

作　　者：朱青[1] 尹迪信 

机构地区：[1]浙江大学生命科学院 [2]贵州省现代化农业发展研究所,贵阳550006

出　　处：《贵州农业科学》2006年第6期52-54,共3页Guizhou Agricultural Sciences

基　　金：钾磷研究所及加拿大钾磷研究所资助项目(Guizhou200103)

摘　　要：通过土壤养分系统研究法,即实验室分析土壤的养分含量、吸附试验、温网室盆栽试验和大田田间试验,诊断出贵州省铜仁地区酸性黄泥田影响水稻产量的主要限制因子排列为:N>P>K>Ca>B>Mo。水稻高产最佳的施肥配方为:尿素17.5 kg/667m2,钙镁磷肥30 kg/667m2,氯化钾10 kg/667m2,石灰0.85 kg/667m2,硼砂0.75 kg/667m2,钼酸铵0.2 kg/667m2。The different nutrient contents of the yellow paddy soil in Tongren Prefecture were determined by a systematic approach including determination of soil nutrition in Lab, sorption test, pot test in greenhouse and field trail. The results show that the order of main limited factors affecting rice yield planted in the acid yellow paddy soil is N2〉P〉K〉Ca〉B〉Mo and the best fertilizer application formulation for higher rice yield in the tested area is 17.5 kg/667m^2 of urea, 30 kg/667m^2 of calciummagnesium phosphate, 10 kg/667m^2 of potassium chloride, 0. 85 kg/667m^2 of lime, 0.75 kg/667m^2 of boron and 0.2 kg/ 667m^2 of ammonium molybdate.

关 键 词：土壤养分系统 限制因子 施肥 贵州 

分 类 号：S158.3[农业科学—土壤学] S511[农业科学—农业基础科学]