四川农业大学学报 ›› 2012, Vol. 30 ›› Issue (04): 379-386.doi: 10.3969/j.issn.1000-2650.2012.04.002

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施氮量与氮肥配置对寒地水稻产量及产量构成因素的影响

汪秀志1, 刘崇文2, 许谊强2, 吕艳东1, 刘丽华1, 郑桂萍1, 钱永德1   

  1. 1. 黑龙江八一农垦大学农学院, 黑龙江省普通高校寒地作物栽培技术重点实验室, 黑龙江 大庆 163319;
    2. 黑龙江省鹤岗市二九〇农场, 黑龙江 鹤岗 156202
  • 收稿日期:2012-10-28 出版日期:2012-12-31 发布日期:2017-02-28
  • 作者简介:汪秀志,讲师,研究方向:水稻分子育种,E-mail:wangxiuzhi9711@163.com。
  • 基金资助:
    黑龙江省科技厅项目"黑龙江省水稻大面积均衡优质高产栽培综合配套技术体系研究"(GA10B102);黑龙江省农垦总局科技局项目"寒地水稻优质高产群体优化研究"(HNK11A-02-02)

Study on Effects of the Total Amount of Nitrogenous Fertilizer and Nitrogenous Allocation on Yield and Yield Components of Japonica Rice

WANG Xiu-zhi1, LIU Chong-wen2, XU Yi-qiang2, LÜ Yan-dong1, LIU Li-hua1, ZHENG Gui-ping1, QIAN Yong-de1   

  1. 1. Key Laboratory of Crop Cultivation in Cold Area, College and University, HLJ Province, Heilongjiang Bayi Agricultural University, Daqing 163319, Heilongjiang, China;
    2. Farm 290, Hegang City, Heilongjiang Province, Hegang 156202, Heilongjiang, China
  • Received:2012-10-28 Online:2012-12-31 Published:2017-02-28
  • Contact: 钱永德,博士,副教授,主要进行水稻高产理论与生理基础研究,E-mail:qyd1973@126.com。 E-mail:qyd1973@126.com

摘要: [目的] 研究氮肥总量及氮肥配置对寒地水稻产量及产量构成因素的影响。[方法] 采用多元二次旋转回归正交组合设计试验,研究3个施肥时期的氮肥用量、调节氮肥施用时间及穴距对粳稻垦鉴稻10号产量及产量构成因素的影响。[结果] 施氮总量与产量间存在最适值(纯氮126kg/hm2左右),后期粒肥用氮比率与产量之间也同样存在最适值(即纯氮10kg/hm2左右)。[结论] 在一定范围内增大施氮总量可提高单位面积穗数和穗粒数,而提高产量方面,氮肥配置对产量的影响较大,在总氮量一定条件下,在一定限度内,增加前期用氮比率可通过提高穗数获得高产,同时降低中期穗肥用氮比率也可提高水稻产量。

关键词: 粳稻, 氮肥用量及氮肥配置, 产量, 产量构成因素

Abstract: [Objective] The effects of the total amount of nitrogenous fertilizer and nitrogenous allocation on yield and yield components of japonica rice were researched. [Method] Nitrogen fertilizer dosage at different stages, such as the amount of nitrogen at ES, the amount of nitrogen at MS and the amount of nitrogen at LS, the application time of the regulating N-fertilizer(RF) and hill spacing(HS) on yield and yield components of japonica rice in cold area were studied in detail by using multiple factors quadratic rotational-regressive-orthogonal combination design. The conventional japonica rice variety ‘Kengjiandao 10’ was used in this experiment. [Results] The results showed that there was the optimum value between total amount of nitrogenous fertilizer and nitrogenous allocation(pure nitrogen was about 126 kg/hm2). The optimum value also existed between ratio of the amount of nitrogen at LS and yield(pure nitrogen was about 10 kg/hm2). [Conclusion] To some extent, increasing the total amount of nitrogenous fertilizer in a certain range could improve panicle per unit area and grain number per spike, and nitrogenous allocation had great influence on increasing rice output. So as to achieve high yield, increasing ratio of amount of nitrogen fertilizer at ES can improve panicle per unit area with the total amount of nitrogen fertilize unchanged and decrease the ratio of amount of nitrogen at MS was also can improve yield of japonica rice.

Key words: japonica rice, N-fertilizer and nitrogenous allocation, yield, yield components

中图分类号: 

  • S511