| 陇中半干旱区旱地马铃薯平衡施肥效应研究 |
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| 引用本文： | 张国君,高世铭,张朝巍,黄杰,李彤.陇中半干旱区旱地马铃薯平衡施肥效应研究[J].安徽农业科学,2007,35(6):1724-1725. |
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| 作者姓名： | 张国君 高世铭 张朝巍 黄杰 李彤 |
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| 作者单位： | 1. 甘肃农业大学,甘肃兰州,730070;2. 甘肃省农业科学院,甘肃兰州,730070 |
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| 摘 要： | 在陇中半干旱区旱地进行了马铃薯平衡施肥试验,结果表明:马铃薯最高产量达24 216.7 kg/hm2,是当地平均产量的1.2倍,高磷处理比无磷处理增产马铃薯7 510.8 kg/hm2,增幅44.96%,1 kg P2O5增产马铃薯25 kg,纯收益增加3 262元/hm2,施磷效益极显著.试验认为,OPT中钾量合适,磷量偏低,氮量可能偏高,最佳的施肥量为N 200 kg/hm2、P2O5 300 kg/hm2、K2O 150 kg/hm2,3种肥料的养分配比为N∶P2O5∶K2O=100∶150∶75.
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| 关 键 词： | 半干旱 马铃薯 平衡施肥 |
| 文章编号： | 0517-6611（2007）06-01724-02 |
| 修稿时间： | 2006-11-15 |
Effect of Balanced Fertilization on Potato Growth in Semi-arid Area of Gansu Province |
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| Guo-jun et al.Effect of Balanced Fertilization on Potato Growth in Semi-arid Area of Gansu Province[J].Journal of Anhui Agricultural Sciences,2007,35(6):1724-1725. |
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| Authors: | Guo-jun |
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| Institution: | Gansu Agricultural University,Lanzhou,Gansu 730070 |
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| Abstract: | An experiment in the banlanced fertilization in semiarid area of central Gansu was conducted.The best yield was 24 216.7 kg/hm2 that was 1.2 times of local production level.Compared with the yield in non-P treatment,the treatment with 1/2 more P resulted in the of 7 510.8 kg/hm2(increased by 44.96%).The yield was increased in 25 kg/1 kg P2O5 application.The net income was increased to 3 262 yuan/hm2.So the effect of phosphorus fertilizer was very prominent. The field experiment showed that in OPT,the amount of K2O was appropriate;P2O5,the lower and the N,little higher.The best suitabale rate of N∶P2O5∶K2O was 100∶150∶75(200 kg/hm2N,300 kg/hm2 P2O5 and 150 kg/hm2 K2O) |
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| Keywords: | Semi-arid Potato Balanced fertilization |
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