| 氮磷钾配比对马铃薯脱毒微型薯生长和产量的影响 |
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| 引用本文： | 袁安明,张小静*.氮磷钾配比对马铃薯脱毒微型薯生长和产量的影响[J].中国马铃薯,2012(4):225-227. |
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| 作者姓名： | 袁安明 张小静* |
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| 作者单位： | 定西市旱作农业科研推广中心, 甘肃 定西 743000 |
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| 基金项目： | 甘肃省科技重大专项计划项目“高产优质专用马铃薯品种创新及脱毒种薯低成本生产技术研究与示范”(2008GS01721) |
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| 摘 要： | 通过对N、P、K大量营养元素的6个不同配比试验研究,结果表明,与对照T1(N:P2O5:K2O=1:0.42:1.63)相比,T5(N:P2O5:K2O=1:0.57:1.22)配比营养液浇施,不仅能促进扦插苗地上部分的生长,还可以诱导匍匐茎的产生和膨大,从而有效提高了单株结薯率,产量增加了32.1%。由此可见,N:P2O5:K2O为1:0.57:1.22的配比是脱毒微型薯生长中所需的较为理想的营养液配方。
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| 关 键 词： | 马铃薯 氮磷钾配比 脱毒微型薯 产量 |
Effects of Various NPK Combinations on Plant Growth and Minituber Yield |
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| YUAN Anming,ZHANG Xiaojing.Effects of Various NPK Combinations on Plant Growth and Minituber Yield[J].Chinese Potato,2012(4):225-227. |
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| Authors: | YUAN Anming ZHANG Xiaojing |
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| Institution: | (Dingxi Municipal Dryland Farming Research and Extension Center,Dingxi,Gansu 743000,China) |
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| Abstract: | Effects of six combinations of nitrogen,phosphorous and potassium in nutrient solution were investigated on plant growth and minituber yield.The results indicated that compared with the control T1(N : P2O5:K2O = 1:0.42:1.63),T5(N:P2O5:K2O = 1:0.57:1.22) not only promoted the growth of aerial parts,but also induced the generation and enlargement of stolons,so as to effectively improve the yield of minituber(32.1%).Therefore,N : P2O5 : K2O = 1 : 0.57 : 1.22 in a nutrient solution should be recommended for minituber production. |
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| Keywords: | potato NPK ratio minituber yield |
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