| 龚成文,冯守疆,赵欣楠,马忠明,范爱平,杨君林.不同钾肥品种对甘肃中部地区马铃薯产量及品质的影响[J].干旱地区农业研究,2013,31(3):112~117 |
| 不同钾肥品种对甘肃中部地区马铃薯产量及品质的影响 |
| Effects of different potassium fertilizers on yield and quality of potato in central Gansu Province |
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| DOI：10.7606/j.issn.1000-7601.2013.03.18 |
| 中文关键词: 硫酸钾 氯化钾 马铃薯 产量 品质 纯收益 |
| 英文关键词:potassium sulfate potassium chloride potato yield quality net income |
| 基金项目:国家科技部农业科技成果转化资金项目(2008GB2G100325)；甘肃省科技厅农业科技成果转化资金项目(0704XCNA011) |
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| 中文摘要: |
| 为了确定甘肃中部马铃薯主产区马铃薯生产过程合理施用钾肥品种及其用量,于2009年在甘肃省漳县进行了硫酸钾和氯化钾两种钾肥的不同用量试验,测定了马铃薯植株地上部分株高、分枝数以及经济性状和薯块产量,分析了不同用量下马铃薯品质和经济效益。结果表明,施用钾肥能有效提高马铃薯地上部分株高、分枝以及薯块产量和品质；同一钾肥下K2O施用量105 kg·hm-2时单株薯块、大中薯率、产量以及干物质、粗淀粉、Vc最高,而烂薯率和薯块还原糖含量最低,K2O 60 kg·hm-2时马铃薯粗蛋白含量最高；同一钾水平下施用硫酸钾马铃薯植株分枝数以及烂薯率明显低于施用氯化钾,单株结薯个数、大中薯鲜重、大中薯率及产量明显高于氯化钾,同时薯块干物质、粗淀粉、Vc、粗蛋白含量高于氯化钾,还原糖含量低于氯化钾,而株高差异不明显。研究得知,甘肃中部马铃薯主产区马铃薯生产过程中施用硫酸钾优于氯化钾,在施纯N120 kg·hm-2、P2O5 60 kg·hm-2条件下,K2O施用量105 kg·hm-2时可有效提高马铃薯产量和品质,且纯收益最高。 |
| 英文摘要: |
| In attempt to determine the appropriate variety and amount of potassium fertilizer usage in the process of potato
produetion, K2SO4 and KCl were tested in 2009 at Zhang County, Gansu Province. Above-field height, branch number, economie characters of potato plants and potato yield were analyzed and measured, and quality and economic efficiency of potato were estimated as well. Test results indicated that usage of potassium fertilizer effectively improved plant height, branch number, yield and quality of potato. With same potassium species, potatoes using high dosage of K2O 105 kg·hm-2 had highest tuber size, large and medium-sized potato ratio, yield, dry materials, crude starch and Vc but lowest decaying potato proportion and reducing sugar content. Potatoes using low dosage of K2O 60 kg·hm-2 the highest crude protein level. At same potassium level, branches number, per
plant tubers, fresh weight of large and medium-sized potato, large and medium-sized potato ratio, contention of dry material, crude starch, crude protein, and yield of using Potassium Sulfate were higher than that of using Potassium Chloride. On the other hand, the difference of plant height was not significant and the contention of reducing sugar and rotten potato ratio was lower than that of using Potassium Chloride. Therefore, using K2SO4 has more advantages in produetion of potatoes than using KCl in central Gansu area.
Combined with applications of N 120 kg·hm-2,P2O5 60kg·hm-2, applying K2O 105 kg·hm-2 improved the yield and quality significantly, and had the best output and the highest net incomes. |
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