| 春甘蓝施用钾肥的增产效应研究 |
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| 引用本文： | 卢廷军,李录久,戚清,郭熙盛,张祥明,张琳.春甘蓝施用钾肥的增产效应研究[J].安徽农业科学,2008,36(16):6853-6854. |
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| 作者姓名： | 卢廷军 李录久 戚清 郭熙盛 张祥明 张琳 |
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| 作者单位： | 1. 安徽省涡阳县农业技术推广中心,安徽涡阳,233600
2. 安徽省农业科学院土肥所,安徽合肥,230031 |
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| 基金项目： | 国际植物营养研究所(IPNI)中国项目部平衡施肥和安徽省人才基金项目资助. |
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| 摘 要： | 目的]研究甘蓝高产的钾肥施用技术。方法]以甘蓝品种"春甘8398"为试材,设置了2个氮肥(N)水平(225、300 kg/hm2)和3个钾肥水平(0、225和338 kg/hm2)共5个处理。收获时调查了甘蓝的株高、叶片数、展开度、单球重、叶重、根重、单株生物量和净菜率。结果]在施用氮磷肥的基础上增施钾肥,能明显促进春甘蓝的生长发育。施钾量在338 kg/hm2以下时,株高、单球重、根重、生物量和净菜率随着钾肥施用量的加大逐渐增加。1999年施钾平均增产33.8%,2001年施钾平均增产27.7%。施用钾肥处理平均增收2 190~3 090元/hm2,施用钾肥的产投比达3.85~5.19∶1。结论]施用钾肥能大幅度提高甘蓝产量与经济效益。
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| 关 键 词： | 甘蓝 钾肥 产量 |
| 文章编号： | 0517-6111(2008)16-06853-02 |
| 修稿时间： | 2008年1月11日 |
Study on Effect of K Fertilizer Application on Yield Increase in Cabbage in Spring |
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| LU Ting-jun.Study on Effect of K Fertilizer Application on Yield Increase in Cabbage in Spring[J].Journal of Anhui Agricultural Sciences,2008,36(16):6853-6854. |
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| Authors: | LU Ting-jun |
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| Abstract: | Objective] The study was to investigate the technique of K fertilizer for high yield in cabbage.Method] With the cabbage variety Chungan 8398 as tested material,5 treatments of N fertilizer with 2 levels(225,300 kg/hm2) and K fertilizer with 3 levels(0,225 and 338 kg/hm2) were designed.The plant height,number of leaf,degree of outspread,weight per ball,leaf weight,root weight,biomass yield per plant and net vegetable rate were measured in harvest stage.Result] Applying K fertilizer on the base of N and P fertilizers could significantly increase the growth of cabbage in spring.When K fertilizer was applied below 338 kg/hm2,the plant height,weight per ball,root weight,biomass yield per plant and net vegetable rate were increased with the increment of K fertilizer dosage.The average yield in treatment applied K fertilizer was increased by 33.8% in 1999 and by 27.7% in 2001.The treatment of applying K fertilizer could increase 2 190-3 090 yuan/hm2 in average and make the output-input ratio of 3.85-5.19∶1.Conclusion] Applying K fertilizer could greatly increase the cabbage yield and economic benefit. |
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| Keywords: | Cabbage K fertilizer Yield |
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