MIAO De yu,JIANG Hao,DING Liang,et al.Study on The Control Technology of Nitrogen Fertilizer of Large Panicle Type Rice in Cold Region[J].HEILONGJIANG AGRICULTURAL SCIENCES,2016,(02):40-43.[doi:10.11942/j.issn1002-2767.2016.02.0040]
寒地水稻大穗型品种氮肥调控技术研究
- Title:
- Study on The Control Technology of Nitrogen Fertilizer of Large Panicle Type Rice in Cold Region
- 文章编号:
- 1002-2767（2016）02-0040-04
- Keywords:
- large panicle type ; nitrogen fertilizer; yield; SPAD value
- 分类号:
- S511.062
- 文献标志码:
- A
- 摘要:
- 为确定寒地水稻大穗型品种氮肥调控技术，采用小区试验的方法，研究在常规施肥水平下调节基肥、返青肥、分蘖肥、穗肥中氮素比例对水稻生长和产量的影响。结果表明：相同施肥水平下提高基肥、返青肥中氮量（即降低分蘖肥、穗肥中氮量）水稻分蘖率提高，株高、穗粒数、结实率和千粒重有下降趋势；反之，则分蘖率下降，株高、穗粒数、结实率和千粒重有提高趋势。通过适当提高基肥、返青肥中氮量可以获得较高产量，插秧前排掉多余泡田水地块基肥、返青肥、分蘖肥、穗肥中氮素的合理比例为30∶40∶10∶20。插秧前泡田水自然落干，无肥料损失地块建议基肥、返青肥、分蘖肥、穗肥中氮素的合理比例为40∶32∶8∶20。
- Abstract:
- In order to determine nitrogen control technology of the large panicle type rice varieties in cold region ,using the plot experiment method,effect of nitrogen ratio under conventional fertilization levels regulate basa fertilizer,striking root fertilizer,tillering fertilizer,panicle fertilizer on growth and yield of rice was researched.The results showed that under the same fertilization level improve fertilizer,striking root fertilizer nitrogen (reduce nitrogen ratio of tillering and panicle fertilizer ) the tillering rate increased,plant height,number of grains per panicle,seed setting rate and 1 000 grain weight were decreased; on the contrary,the tillering rate decreased,plant height,number of grains per panicle,seed setting rate and 1 000 grain weight had increasing trend.By appropriately increasing the base fertilizer,green fertilizer nitrogen could obtain higher yield,planting front off excess reasonable proportion of the paddy field plots of base fertilizer,striking root fertilizer,tillering fertilizer,panicle fertilizer nitrogen bubble for 30∶40∶10∶20.Before planting bubble field water naturally dry,without a reasonable proportion of the fertilizer loss plots suggest a basal fertilizer,striking root fertilizer,tillering fertilizer,panicle fertilizer nitrogen was 40∶32∶8∶20.
参考文献/References:
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备注/Memo
苗得雨（1981-），男，内蒙古自治区清水河县人，硕士，高级农艺师，从事水稻科研与技术指导工作。E-mail：miao_05@163.com。