| 马铃薯氮、磷、钾肥料效应的研究 |
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| 引用本文： | 张朝春,江荣风,张福锁,王兴仁.马铃薯氮、磷、钾肥料效应的研究[J].中国马铃薯,2004,18(6):326-329. |
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| 作者姓名： | 张朝春 江荣风 张福锁 王兴仁 |
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| 作者单位： | 教育部土壤-植物相互作用重点实验室,农业部植物营养学重点实验室,中国农业大学,植物营养系,北京,100094 |
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| 摘 要： | 在大面积生产背景下,采用3因素6水平的U12(1212)回归均匀设计,研究氮、磷、钾的施肥量和比例,并通过肥料效应方程分析马铃薯对氮、磷、钾肥需求量的差异。结果说明,马铃薯的块茎产量随养分供应量的增加而增加,达到一定水平后,产量增加趋于平缓,处于一个高的“平台”。通过效应拟合得出马铃薯产量与氮、磷、钾养分供应量的肥料效应方程及施肥量、养分比例,说明马铃薯对钾肥需求量最大,其次是氮肥,对磷肥需求相对较少。
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| 关 键 词： | 马铃薯 U12(1212)均匀设计 肥料效应方程 |
| 文章编号： | 1672-3635(2004)06-0326-04 |
| 修稿时间： | 2004年4月7日 |
FERTILIZATION MODEL OF POTATO PLANTING IN LARGE AREA |
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| ZHANG Chao-chun,JIANG Rong-feng,ZHANG Fu-suo,WANG Xing-ren.FERTILIZATION MODEL OF POTATO PLANTING IN LARGE AREA[J].Chinese Potato,2004,18(6):326-329. |
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| Authors: | ZHANG Chao-chun JIANG Rong-feng ZHANG Fu-suo WANG Xing-ren |
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| Abstract: | With chip consumption increasing,large quantity of processing tub er s was required,so pota-to had to be planted in large area with mechanized farmi ng.This experiment was conducted in a large field to study the effect of fertili zers on tuber yield with a mathematic model,U 12 (12 12 ).The results showed that tuber yield was increasing with raising fertilizer application,especially for nitrogen fertilizer,until to a plateau,where the yie ld varia tion was insignificant even if fertilization rate was kept on increasin g.After calculating from the quadratic equation,the fertilization rate and ratio of the highest yield were got,and showed that the potato de-manded the highest potasium,nitrogen secondarily,and phosphorous less. |
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| Keywords: | potato fertilizatio n U 12 (12 12 )model |
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