| 水稻中国91氮素营养特性的研究 |
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| 引用本文： | 史春余,徐永武.水稻中国91氮素营养特性的研究[J].山东农业大学学报(自然科学版),1994,25(3):267-271. |
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| 作者姓名： | 史春余 徐永武 |
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| 作者单位： | 石油大学农场 |
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| 摘 要： | 应用１５Ｎ示踪技术，通过盆栽试验研究了中国９１和日本晴的氮素营养特性。结果表明，中国９１的增产潜力大于日本晴，但结实率比日本晴低。中国９１之所以有以上特点，与下列特性有关：（１）氮肥利用率较高，氮素分配在穗中的比例较高，分配在营养器官中的比例较低。（２）抽穗到成熟营养器官的氮素转移率较高，结实期的净同化率低。
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| 关 键 词： | 水稻 氮 营养 分配 |
A STUDY OF NITROGEN EFFECT ON THE VEGETATIVE CHARACTERS OF RICE CULTIVAR, CHINA NO. 91 |
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| Shi Chunyu,Jin Liufu.A STUDY OF NITROGEN EFFECT ON THE VEGETATIVE CHARACTERS OF RICE CULTIVAR, CHINA NO. 91[J].Journal of Shandong Agricultural University,1994,25(3):267-271. |
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| Authors: | Shi Chunyu Jin Liufu |
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| Abstract: | Under the conditions of pot cultivation the study was carried out by using 15N tracer,to investigate the nitrogen effect on vegetaive characters of Rice cultivars. China No. 91and Japan Jing. The results indicated that the productive potential of cultivar China No. 91was higher than cultivar Japan Jing, but its setting percentage was lower. The characters ofChina No. 91 are as follows : (1 )It can absorb nitrogen in N fertilizer more effectively andthere is more nitrogen in ears but there is less nitrogen in vegetative organs. (2)The transferpercentage of the nitrogen in vegetative organs is higher. There is lower NAR during thegrain-filling phase. |
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| Keywords: | the vegetative characters of nitrogen 15N tracer the distribution of nitrogen NAR |
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