| 氮钾肥比例对马铃薯生长发育、产量及品质的影响 |
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| 引用本文： | 郑若良. 氮钾肥比例对马铃薯生长发育、产量及品质的影响[J]. 江西农业学报, 2004, 16(4): 39-42 |
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| 作者姓名： | 郑若良 |
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| 作者单位： | 湖南省农业技术推广总站,湖南,长沙,410005 |
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| 基金项目： | 湖南省农业丰收计划重点科技攻关项目(2003-08). |
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| 摘 要： | 研究了不同氮钾肥比例对马铃薯生长发育、产量和品质的影响,结果表明,当N∶K2O比增加时,马铃薯的生长发育进程延长,健康态势降低,块茎蛋白质含量升高;而当N∶K2O比降低时,块茎的干物质、淀粉、还原糖、总糖和Vc等含量趋于增加;当N∶K2O为2∶3时,马铃薯的平均产量和商品率最高。
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| 关 键 词： | 氮钾肥比例 马铃薯 生长发育 产量 品质 |
| 文章编号： | 1001-8581(2004)04-0039-04 |
| 修稿时间： | 2004-07-23 |
Effects of Ratio of Fertilizer Nitrogen to Potassium on Growth, Yield and Quality of Potato |
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| Abstract: | The effects of different ratios of fertilizer nitrogen to potassium on the growth, yield and quality of potato were studied. The results indicated that as the ratio of N to K_2O increased, the growth and developmental duration of potato would prolong, its healthy condition would become poor and the protein content in the tuber would rise; however, when the ratio of N to K_2O decreased, the content of dry matter, amylum, deoxysugar, total sugar and vitamin C in the tuber would rise in general; when the ratio of N to K_2O was 2∶3, the average yield and marketable rate of tuber would be the highest. |
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| Keywords: | Ratio of fertilizer N to K_2O Potato Growth and development Yield Quality |
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