MA Wen-dong.Effect of Nitrogen Fertilizer Amount on Rice Yield and Quality in Cold Region[J].HEILONGJIANG AGRICULTURAL SCIENCES,2013,(10):36-38.
氮肥施用量对寒地水稻产量和品质的影响
- Title:
- Effect of Nitrogen Fertilizer Amount on Rice Yield and Quality in Cold Region
- 文章编号:
- 1002-2767(2013)10-0036-03
- Keywords:
- nitrogen fertilizer; rice; yield
- 分类号:
- S511.062
- 文献标志码:
- A
- 摘要:
- 为了明确水稻早熟品种龙粳27的最佳施氮量,实现早熟品种高产稳产,利用小区试验的方法,研究在水稻不同生育时期施用不同数量氮肥,对寒地早熟水稻品种产量和品质的影响。结果表明:氮肥用量对水稻单株分蘖和株高影响趋势相同,随着施氮量的增加水稻单株分蘖和株高均明显增加。施氮肥的处理穗实粒数、空瘪率和平方米穗数均比不施氮肥处理高。穗实粒数、空瘪率和平方米穗数随着施氮量的增加而提高。千粒重随着氮肥施用量的增加而降低。氮肥施用量与产量之间的关系式为y=493.11+53.747x-3.591x2。最高产量下的施氮肥量应为112.2 kg.hm-2,最高产量为10 413 kg.hm-2。
- Abstract:
- In order to clear the optimum nitrogen fertilizer amount for early maturing rice varieties Longjing 27,and get high and stable yield.The effects of different amount of nitrogen fertilizer on yield and quality for rice was studied in different growth stages by the plot experiment.The results showed that the effect of nitrogen fertilizer amount on tiller number per plant and plant height of rice had same trends,with the increasing of nitrogen fertilizer amount,tiller number per plant and plant height of rice were significantly increased.The filled grain numbers per spike,seed-set percentage and number of spike per square meter of the nitrogen fertilizer application treatment were higher than that without nitrogen fertilizer application.With the increasing of nitrogen fertilizer amount,filled grain numbers per spike, seed-set percentage and number of spike per square meter were increasing,and 1 000-grain weight was reducing.The relationship formula between nitrogen fertilizer levels and yield was y=493.11 +53.747x-3.591x2.The nitrogen fertilizer amount was 112.2 kg.hm-2 when the yield was the highest,that was 10 413 kg.hm-2.
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备注/Memo
收稿日期:2013-05-15
基金项目:黑龙江省科技厅攻关资助项目(FW11B204-02)
作者简介:马文东(1980-),男,黑龙江省桦南县人,硕士,助理研究员,从事水稻新品种选育及推广研究。E-mail:sdsmawendong@163.com。