中国蔬菜Issue(4)：69-75,7.
华南地区蔬菜钾肥推荐施肥技术体系建立
Establishment of Recommended Potassium Fertilization Technical System for Vegetables in South China
摘要
Abstract
Fertilizer K experiments of 138 field trials on leaf vegetable, gourd vegetable and legume vegetable in different locations with different fertility levels were investigated, and the statistical analysis on the relative yield and potassium fertilization and soil available potassium were carried out. The regression equations were also established. They were to determine the soil Rich-Lack index on available potassium and the recommended fertilization of potassium for different fertility levels of soil. Results showed that when the relative yield of vegetable were <75%, 75%-95%, >95%, the soil Rich-Lack index on the available potassium were <50 mg · kg-1 , 50-240 mg · kg-1, >240 mg · kg-1 , respectively for gourd-vegetable like balsam pear, that was <45 mg · kg-1 , 45-195 mg ·kg-1 , > 195 mg · kg-1 respectively for legume vegetable like cowpea, that was <20 mg · kg , 20-140 mg · kg-1 , >140 mg · kg-1 respectively for leaf vegetable. The recommended fertilization of potassium for different fertility levels of soil were that the gourd vegetables were 225.0 kg · hm-2 , 112.5-225.0 kg · hm-2 , < 112.5 kg · hm-2 respectively, the legume vegetables were 187.5 kg · hm-2, 105.0-187.5 kg · hm-2, <105.0 kg · hm-2, respectively, the leaf vegetables were 142.5 kg · hm-2, 82.5-142.5 kg · hm-2, <82.5 kg · hm-2, respectively.关键词
菜园土/钾/肥力分级指标/推荐施肥量/叶菜类/瓜类/豆类Key words
Soil of vegetable garden/Potassium/Soil fertility grading index/ Recommended fertilization index/Leaf vegetables/Gourd vegetables/Legume vegetables分类
农业科技引用本文复制引用
李淑仪,张桥,廖新荣,王荣萍,丁效东,张育灿..华南地区蔬菜钾肥推荐施肥技术体系建立[J].中国蔬菜,2013,(4):69-75,7.基金项目
广东省现代农业产业技术体系特色蔬菜创新团队岗位专家建设项目[粤农(2009)380号],广东省级农用地测土配方施肥专项[粤财农(2008)293号,(2009)400号,(2010)519号,(2011)320号] （2009）
