SHANG Quan-yu,YANG Xiu-feng,WANG Wan-xia,et al.Effects of Nitrogen and Phosphate Supply on Yield and Substance Accumulation of Rice in Alpine Region[J].HEILONGJIANG AGRICULTURAL SCIENCES,2012,(09):43-45.
氮磷供给对高寒地区水稻产量及干物质积累的影响
- Title:
- Effects of Nitrogen and Phosphate Supply on Yield and Substance Accumulation of Rice in Alpine Region
- 文章编号:
- 1002-2767（2012）09-0043-03
- Keywords:
- nitrogen and phosphorus; alpine region; yield; substance accumulation
- 分类号:
- S511
- 文献标志码:
- A
- 摘要:
- 为给高寒地区水稻生产提供技术方案，研究了氮磷肥不同水平对高寒地区水稻在产量及干物质积累方面的变化。结果表明：氮肥在N1（45 kg·hm-2）、N2（90 kg·hm-2）和磷肥在P1（45 kg·hm-2）、P2（90 kg·hm-2）、P3（135 kg·hm-2）和P4（180 kg·hm-2）施用量下，产量表现为N2>N1和P4>P3>P2>P1，并且每公顷穗数、株高和中后期分蘖数量与产量效应一样；在氮肥定量下，磷肥对每穗粒数影响先增加后下降。在N1水平下，磷肥增加对结实率有促进作用，干物质积累表现出N2>N1>N0P0，与产量趋势趋于一致。
- Abstract:
- In order to provide technology scheme of rice production in alpine region,this paper studies the change of rice in yield and substance accumulation by the experiment in different levels of nitrogen and phosphate fertilizer supply.The results showed as following:the application rate of fertilizer under the conditions that N1（45 kg·hm-2）,N2（90 kg·hm-2） and P1（45 kg·hm-2）,P2（90 kg·hm-2),P3（135 kg·hm-2）and P4（180 kg·hm-2）,the yield showed:N2> N1 and P4>P3>P2>P1,and the panicle number per hectare,height of plant and tillering number in the middle and late period is the same as yield response.In the certain quantitative of nitrogen,the effects of phosphate fertilizer on grain number per panicle firstly increased then decreased.In the N1 concentration,increasing phosphate fertilizer has promotion impact to seed setting rate.The dry matter accumulation result showed that N2>N1>N0P0,which was the same as the trend of yield.
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备注/Memo
基金项目：黑龙江省农业科学院院级课题资助项目