| 微生物肥对水稻产量及氮肥利用的影响 |
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| 引用本文： | 陈惠哲,朱德峰,林贤青,张玉屏.微生物肥对水稻产量及氮肥利用的影响[J].核农学报,2010,24(5):1051-1055. |
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| 作者姓名： | 陈惠哲 朱德峰 林贤青 张玉屏 |
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| 作者单位： | 1. 中国水稻研究所,水稻生物学国家重点实验室,浙江,杭州,310006;中国农业科学院研究生院,北京,100081
2. 中国水稻研究所,水稻生物学国家重点实验室,浙江,杭州,310006 |
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| 基金项目： | 浙江省自然科学基金（Y3080229），国家863科技计划项目（2007AA10Z229） |
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| 摘 要： | 以杂交稻中浙优1号和甬优9号为材料，研究微生物肥对水稻产量及氮肥利用的影响。结果表明，在相同施氮水平下，施用微生物肥后2个水稻品种分别增产41%和87%，其中主要增加了水稻有效穗，提高结实率和籽粒粒重；但分蘖成穗率有所下降；微生物肥能提高水稻叶片的光合速率，穗分化期和齐穗期的叶片光合速率均高于对照，也有利于增加齐穗期的物质生产量。研究表明微生物肥能提高氮素的农学利用率，实现减肥增产，且随着施氮量下降，氮素利用率呈升高趋势。
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| 关 键 词： | 水稻 微生物肥 产量 氮肥利用率 |
EFFECT OF MICROBIAL FERTILIZER ON YIELD AND NITROGEN USE EFFICIENCY IN RICE |
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| CHEN Hui-zhe,ZHU De-feng,LIN Xian-qing,ZHANG Yu-ping.EFFECT OF MICROBIAL FERTILIZER ON YIELD AND NITROGEN USE EFFICIENCY IN RICE[J].Acta Agriculturae Nucleatae Sinica,2010,24(5):1051-1055. |
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| Authors: | CHEN Hui-zhe ZHU De-feng LIN Xian-qing ZHANG Yu-ping |
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| Institution: | 1State Key Laboratory of Rice Biology; China National Rice Research Institute, Hangzhou, Zhejiang 310006；
2Graduate School of the Chinese Academy of Agriculture Sciences, Beijing 100081 |
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| Abstract: | Two hybrid rice varieties (Zhongzheyou 1 and Yongyou 9) were used in this experiment to study the effect of microbial fertilizer on yield and nitrogen use efficiency of rice. The results showed that yields of two varieties at same nitrogen rate were increased by 41% and 87% with microbial fertilizer application and without microbial fertilizer application, respectively. The yield increase was associated with increases in panicle per square meter, grain filling rate and grain weight. However, productive tiller percentage was decreased. At panicle initiation and heading stage, the plants which received microbial fertilizer had higher leaf net photosynthethic rate than that of control, the improvement of dry matter accumulation was also microbial fertilizer observed at heading stage. Our results suggested that nitrogen agronomy efficiency and yield of rice were improved, and there is a gradual increase in nitrogen use efficiency with reduction of nitrogen application. |
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| Keywords: | rice microbial fertilizer yield nitrogen use efficiency |
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