| 华南地区蔬菜钾肥推荐施肥技术体系建立 |
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| 引用本文： | 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,2013,1(4):69-75. |
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| 作者姓名： | 李淑仪 张桥 廖新荣 王荣萍 丁效东 张育灿 |
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| 作者单位： | 1.广东省生态环境与土壤研究所，广东广州 510650；2 广东省土壤肥料总站，广东广州 510500 |
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| 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〕 |
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| 摘 要： | 在华南地区不同地点、不同肥力水平的菜园上进行叶菜类、瓜类、豆类3 类主要蔬菜的钾肥
田间试验，并对138 个试验点的3 类蔬菜相对产量与土壤有效钾含量、土壤有效钾含量与施钾量的关系
进行相关分析，建立回归方程，以此分别建立适用于瓜类、豆类、叶菜类的土壤有效钾养分丰缺指标和各
等级土壤的推荐施钾肥指标。结果表明：蔬菜相对产量为＜ 75%、75%～95%、＞ 95% 的各肥力等级土
壤有效钾丰缺指标，苦瓜分别为＜ 50 mg·kg-1、50～240 mg·kg-1、＞ 240 mg·kg-1；豇豆分别为＜ 45
mg·kg-1、45～195 mg·kg-1、＞ 195 mg·kg-1；叶菜分别为＜ 20 mg·kg-1、20～140 mg·kg-1、＞ 140
mg·kg-1。各有效钾等级对应的施钾量，苦瓜分别为15.0 kg·（667m2）-1、7.5～15.0 kg·（667m2）-1、＜ 7.5
kg·（667m2）-1； 豇豆分别为12.5 kg·（667m2）-1、7.0～12.5 kg·（667m2）-1、＜ 7.0 kg·（667m2）-1；
叶菜分别为9.5 kg·（667m2）-1、5.5～9.5 kg·（667m2）-1 、＜ 5.5 kg·（667m2）-1 。
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| 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 |
| 收稿时间： | 2012-05-30; |
Establishment of Recommended Potassium Fertilization Technical System for Vegetables in South China |
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| LI Shu-yi,ZHANG Qiao,LIAO Xin-rong,WANG Rong-ping,DING Xiao-dong,ZHANG Yu-can.Establishment of Recommended Potassium Fertilization Technical System for Vegetables in South China[J].China Vegetables,2013,1(4):69-75. |
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| Authors: | LI Shu-yi ZHANG Qiao LIAO Xin-rong WANG Rong-ping DING Xiao-dong ZHANG Yu-can |
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| Institution: | 1.Guangdong Institute of Eco-environmental and Soil Science， Guangzhou 510650， Guangdong， China； 2 Guangdong;
General Agency for Soil and Fertilizer， Guangzhou 510500， Guangdong， China |
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| 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-1，20-140 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. |
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| Keywords: | Potassium Soil fertility grading index Recommended fertilization index Leaf vegetables Gourd vegetables Legume veg etables |
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