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| 马铃薯钾素吸收积累与施用技术 | |
| 引用本文： | 翁定河,李小萍,王海勤,姜照伟.马铃薯钾素吸收积累与施用技术[J].福建农业学报,2010,25(3):319-324. |
| 作者姓名： | 翁定河 李小萍 王海勤 姜照伟 |
| 作者单位： | 1. 福建农林大学作物科学学院,福建,福州,350002;福建省种植业技术推广总站,福建,福州,350003 2. 福建省农业科学院水稻研究所,福建,福州,350019 3. 福建省漳州市农业技术推广站,福建,漳州,363000 |
| 基金项目： | 福建省科技计划项目，福建省科技计划重大专项 |
| 摘 要： | 为探索马铃薯钾素吸收积累规律和施用技术,在闽东南冬种马铃薯区设置施K量试验。结果表明,马铃薯全株及块茎的K素积累呈Logistic曲线动态,吸K盛期在现蕾前14 d至成熟前15 d,后期块茎新增K素主要来自叶片的转移。马铃薯产量与施K量呈抛物线型相关,在供试条件下,经济施K量为201.6 kg.hm-2,预期产量为37 424 kg.hm-2,平均每生产1 000 kg块茎需施K 5.4 kg。 |
| 关 键 词： | 马铃薯 钾素吸收积累 氯离子毒害 施肥技术 |
Potassium absorption and fertilization of potatoes |
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| WENG Ding-he,LI Xiao-ping,WANG Hai-qin,JIANG Zhao-wei.Potassium absorption and fertilization of potatoes[J].Fujian Journal of Agricultural Sciences,2010,25(3):319-324. | |
| Authors: | WENG Ding-he LI Xiao-ping WANG Hai-qin JIANG Zhao-wei |
| Institution: | WENG Ding-he1,2,LI Xiao-ping3,WANG Hai-qin4,JIANG Zhao-wei3(1.College of Crop Sciences,Fujian Agriculture and Forestry University,Fuzhou,Fujian 350002,China,2.Agricultural Technology Extension General Station,Fujian Province Department of Agriculture,Fujian 350001,3.Rice Research Institute,Fujian Academy of Agricultural Sciences,Fujian 350019,4.Agricultural Technology Extension Station of Zhangzhou,Zhangzhou,Fujian 363000,China) |
| Abstract: | To understand the potassium(K) absorption and fertilization of potatoes,an experiment was conducted in Southeast Fujian using the winter potatoes.The results showed that the K accumulation in the entire plant and tuber of the potatoes was a Logistic dynamic curve.The vigorous stage of the absorption occurred during the 14d before squaring to the 15d prior to maturation.In the late stage,the tuber acquired K primarily from the leaves.The potato yield correlated to the amount of K application parabolically.Un... |
| Keywords: | potato K absorption accumulation Cl-toxicity application technique |
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