中国稻米

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辽粳433跨区域栽培的适宜肥密运筹方式探讨

  1. 辽宁省水稻研究所,沈阳 110101
  • 出版日期:2018-05-20 发布日期:2018-05-20
  • 基金资助:

    国家科技支撑计划(2015BAD01B02-4);星火计划项目(2015GA650001);辽宁省农业科技攻关计划(2011201019)

Discussion on Appropriate Fertilizer Management Methods for Trans-regional Cultivation of Liaogeng 433

  • Online:2018-05-20 Published:2018-05-20

摘要:

针对特优质粳稻新品种辽粳433适宜种植区域狭窄的现状,通过异地栽培,设置肥料运筹、移植密度互作试验,分析两因素及其互作对水稻生育进程、产量及品质的影响。结果表明,在高纬度地区降低氮肥施用量,能加速辽粳433生育进程实现正常成熟,但降低了有效穗数、穗长、二次枝梗数和二次枝梗粒数;增施有机肥能促进水稻穗分化的形成,改善稻米蒸煮食味品质。在稻米品质性状的稳定性上表现为蒸煮品质>加工品质>外观品质。

关键词: 辽粳433, 肥料运筹, 移植密度, 产量, 品质

Abstract:

For the suitable areas of high quality japonica rice Liaogeng 433 is not many in Liaoning province, the effects of fertilizer management, transplanting density and their interaction on the growth process, yield and quality of rice were analyzed in different areas of cultivation. The results showed that reducing the amount of nitrogen fertilizer could accelerate the development of the growth process in high latitude area. However, the number of effective panicles, panicle length, number of secondary branches and grains of secondary branches were reduced. The increase of organic fertilizer improved the quality of rice, the stability of rice quality character was showed cooking quality > milling quality > appearance quality.

Key words:  Liaogeng 433, fertilizer application, plant density, grain yield, quality

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