| 半干旱地区马铃薯肥料效应试验研究 |
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| 引用本文： | 刘宏胜,杨旭东,张小红,符国忠.半干旱地区马铃薯肥料效应试验研究[J].中国马铃薯,2010,24(6). |
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| 作者姓名： | 刘宏胜 杨旭东 张小红 符国忠 |
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| 摘 要： | 为研究马铃薯产量与氮、磷、钾施用量之间的关系,本研究建立了庄浪县半干旱地区不同生态区域和肥力水平的(中北部山区柳梁农科站、西北部山区大庄乡农科站、东部山区永宁农科站、南部山区朱店镇三合村)马铃薯产量(Y)与N(X1)、P2O5(X2)、K2O(X3)之间的回归方程。结果表明:半干旱区马铃薯667 m2平均最佳施肥量为纯N 9.16 kg,P2O5 6.47 kg,K2O 5.81 kg,此时667 m2产量的预测值为2 900 kg,N、P、K施用量比例为1:0.71:0.63。
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| 关 键 词： | 半干旱 马铃薯 肥料 |
Optimization of Fertilization for Potato Production in Semi-arid Areas |
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| LIU Hongsheng,YANG Xudong,ZHANG Xiaohong,FU Guozhong.Optimization of Fertilization for Potato Production in Semi-arid Areas[J].Chinese Potato,2010,24(6). |
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| Authors: | LIU Hongsheng YANG Xudong ZHANG Xiaohong FU Guozhong |
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| Abstract: | The relation of potato yield with nitrogen,kalium,and potassium fertilizer application was investigated in four sites with different ecosystems and soil fertilities in Zhuanglang County,i.e.Liuliang Agricultural Experimental Station in mid-northern mountainous area,Dazhuangxiang Agricultural Experimental Station in north-western mountainous area,Yongning Agricultural Experimental Station in eastern mountainous area and Sanhe Village,Zhudianzhen Town in southern mountainous area.The optimization application of pure N,P2O5,and K2O in the semi-arid area was 9.16 kg,6.47 kg and 5.81 kg,respectively,when the expected potato yield got 2 900 kg on 667 m2 land,and the ratio of N,P and K was 1: 0.71: 0.63. |
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| Keywords: | semi-arid area potato fertilizer |
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