| 旱作马铃薯磷素的吸收、积累和分配规律 |
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| 引用本文： | 高聚林,刘克礼,盛晋华,任珂,隋启君,姜波.旱作马铃薯磷素的吸收、积累和分配规律[J].中国马铃薯,2003,17(6):326-330. |
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| 作者姓名： | 高聚林 刘克礼 盛晋华 任珂 隋启君 姜波 |
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| 作者单位： | 1. 内蒙古农业大学,呼和浩特,010018
2. 呼盟农业科学研究所,扎兰屯,021100 |
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| 基金项目： | 内蒙古自治区科技厅"九五"重大科技攻关项目(960101) |
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| 摘 要： | 磷元素在植株体内的流动性较大,磷营养水平与块茎膨大密切相关,块茎是磷素的最终贮存库。叶片、地上茎、块茎中磷素浓度的变化幅度分别为0 28%～0 51%、0 26%～0 58%、0 33%～0 49%,成熟期磷素在叶片、地上茎、块茎中的分配率分别为15%～20%、10%～15%、70%～75%。马铃薯对磷素的吸收速率在整个生育期间呈单峰曲线变化,峰值出现在块茎快速增长期(出苗后50d左右),最高吸收速率可达19 2mg/(株·d),每生产500kg块茎需吸收磷素0 80kg。
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| 关 键 词： | 马铃薯 磷 吸收 积累 分配 |
| 文章编号： | 1672-3635(2003)06-326-05 |
| 修稿时间： | 2003年4月20日 |
PHOSPHORUS ABSORPTION,ACCUMULATION AND DISTRIBUTION OF POTATO UNDER DRY FARMING |
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| GAO Ju-lin,LIU Ke-li,SHENG Jin-hua,REN Ke,SUI Qi-jun,JIANG Bo.PHOSPHORUS ABSORPTION,ACCUMULATION AND DISTRIBUTION OF POTATO UNDER DRY FARMING[J].Chinese Potato,2003,17(6):326-330. |
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| Authors: | GAO Ju-lin LIU Ke-li SHENG Jin-hua REN Ke SUI Qi-jun JIANG Bo |
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| Institution: | GAO Ju-lin~1,LIU Ke-li~1,SHENG Jin-hua~1,REN Ke~2,SUI Qi-jun~2,JIANG Bo~2 |
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| Abstract: | Change of P content was closely related with tuber growth,and tuber was the final sink of P. The P contents in leaves,above ground stems and tubers ranged 0.28%～0.51%,0.26%～0.58%,and 0.33%～0.49%,respectively; P distribution in leaves,above ground stems and tubers during maturing stage was 15%～20%,10%～15%,and 70%～75%,respectively. Change of P absorption velocity of potato was a single-peak curve during all stages,and its peak emerged in the tuber fast growth stage (about 50 days after emergence),the maximal absorption speed almost being 19.2 mg/plant·d. 0.80 kg P was required when 500 kg potato were produced. |
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| Keywords: | potato P absorption accumulation distribution |
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