| 水稻根系营养吸收特性及其与干物质生产和稻米品质关系的研究 |
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| 引用本文： | 李木英,石庆华,谭雪明. 水稻根系营养吸收特性及其与干物质生产和稻米品质关系的研究[J]. 江西农业大学学报, 1996, 0(4) |
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| 作者姓名： | 李木英 石庆华 谭雪明 |
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| 作者单位： | 江西农业大学农学院 |
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| 摘 要： | 研究表明水稻根系Ｎ，Ｐ，Ｋ日吸收强度随生育进程而逐渐增大，至穗分化期至抽穗期达到高峰，而后下降：Ｎ，Ｐ，Ｋ吸收比例平均为４．８９：１：７．４３，自分蘖盛期以后，Ｋ素吸收比例上升，杂交稻组合汕优６３吸Ｋ比例大。根系的Ｎ，Ｐ，Ｋ吸收量与稻株干物质生产和总糖生产呈极显著相关；稻米蛋白质含量与抽穗后的Ｎ素吸收速率呈显著相关。
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| 关 键 词： | 水稻根系；营养吸收特性；干物质生产；品质 |
STUDIES ON THE RELATIONSHIP BETWEEN THE CHARACTERISTICS OF NUTRITION UPTAKE OF RICE ROOTS AND THE DRY MATTER PRODUCTION,GRAIN YIELD AND GRAIN QUALITY |
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| Li Muying,Shi Qinghua, Tan Xueming. STUDIES ON THE RELATIONSHIP BETWEEN THE CHARACTERISTICS OF NUTRITION UPTAKE OF RICE ROOTS AND THE DRY MATTER PRODUCTION,GRAIN YIELD AND GRAIN QUALITY[J]. Acta Agriculturae Universitis Jiangxiensis, 1996, 0(4) |
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| Authors: | Li Muying Shi Qinghua Tan Xueming |
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| Abstract: | The intensity of N,P,K absorption of rice roots increased gradually with plant growth Itreached the peak during the panicle developing stage,then decreased.The uptake ration ofN,P,K was 4.89:1:7.43,The ratio of K increased after tillering stage. The uptake amount ofKdthe hybrid combination,Sanyou 63 was thegreatest among those of the tested varieties.There was a close correlation between the uptake ainount of N,P,K and the dry matter produc-tion and total carbohydrate. The protein content of rice was correlated with the uptake rate ofN after heading: |
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| Keywords: | rice roots characteristics of nutrition uptake dry matter production quality |
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