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农学学报

农学学报 ›› 2017, Vol. 7 ›› Issue (12): 28-33.doi: 10.11923/j.issn.2095-4050.cjas17020008

所属专题： 水稻

• 土壤肥料 资源环境 生态 • 上一篇    下一篇

氮钾穗肥对江淮地区杂交中籼稻的生长和产量影响

田霞   

  1. 霍邱县种植业发展局
  • 收稿日期:2017-02-09 修回日期:2017-04-14 接受日期:2017-04-25 出版日期:2017-12-15 发布日期:2017-12-15
  • 通讯作者: 田霞 E-mail:tianxia
  • 基金资助:
    “十二五”粮食丰产科技工程项目“江淮西部（霍邱）水稻小麦丰产节水节肥技术集成与示范”(2013BAD07B08-4)。

Effects of Nitrogen and Potassium Panicle Fertilizer on Growth and Yield of Medium Indica Hybrid Rice (MIHR) in Jianghuai Region

  • Received:2017-02-09 Revised:2017-04-14 Accepted:2017-04-25 Online:2017-12-15 Published:2017-12-15

PDF (PC)

594

摘要： 探讨不同氮、钾穗肥处理对江淮地区杂交中籼水稻干物质重、叶面积、生长、产量等因素的影响，以期获得江淮地区最佳的氮、钾穗肥处理组合，为杂交中籼水稻科学合理施用穗肥提供依据。结果表明，施氮钾穗肥以后的叶面积指数和干重高于纯氮穗肥、不施用穗肥的叶面积指数和干重;氮钾穗肥处理的产量高于不施穗肥处理的产量，且氮钾混合处理穗肥的产量高于纯氮处理的产量；江淮地区最佳穗肥施用量的标准是：纯N78.75~112.5 kg/hm2，再配施K2O 76.5 kg/hm2。

关键词: 寒地水稻, 寒地水稻, 密度, 热效应, 产量

Abstract: The study aims to explore the effects of different nitrogen and potassium panicle fertilizer treatments on MIHR’s dry weight, leaf area, growth and yield in Jianghuai Region and provide references for rational panicle fertilizer application. The results showed that the leaf area and dry weight of nitrogen and potassium panicle fertilizer treatment were higher than those of pure nitrogen panicle fertilizer or no panicle fertilizer, the yield of nitrogen and potassium panicle fertilizer treatment was higher than that of no panicle fertilizer treatment, and the yield of nitrogen and potassium panicle fertilizer treatment was higher than that of pure nitrogentreatment; the best fertilizer application level in Jianghuai Region was pure nitrogen 78.75to112.5kg/hm2 combinedwithK2O76.5 kg/hm2.