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中国农学通报

中国农学通报 ›› 2017, Vol. 33 ›› Issue (6): 42-47.doi: 10.11924/j.issn.1000-6850.casb16040150

所属专题： 油料作物； 园艺

• 农学 农业基础科学 • 上一篇    下一篇

不同包膜肥用量对油菜碳氮代谢产物和产量的影响

杨勇   

  1. 湖南农业大学资源环境学院
  • 收稿日期:2016-04-25 修回日期:2016-07-04 接受日期:2016-07-25 出版日期:2017-03-02 发布日期:2017-03-02
  • 通讯作者: 杨勇
  • 基金资助:
    国支撑计划课题“洞庭湖区农田面源污染控制关键技术集成与示范”(2014BAC09B01-01)；国支撑计划课题“城郊环保型高效农业关键技 术研究与示范”(2014BAD14B01)；国支撑计划课题“南方丘陵山地农区农业面源污染防控技术集成与示范”(2012BAD15B04)。

Different Dosages of Coated Fertilizer Affecting Carbon and Nitrogen Metabolism and Rapeseed Yield

  • Received:2016-04-25 Revised:2016-07-04 Accepted:2016-07-25 Online:2017-03-02 Published:2017-03-02

PDF (PC)

340

摘要： 为研究包膜肥在直播早熟油菜上的应用效果，采用田间小区试验，探究不同用量包膜肥对‘湘杂油1613’碳氮代谢和籽粒产量的影响。结果表明，施肥量相同条件下，施用包膜肥油菜碳氮代谢活跃，叶绿素含量(SPAD)升高，可溶性糖和游离氨基酸总量增加，含量差异不明显；单株有效分枝数和角果数明显增加，每角果粒数和千粒重小幅提高。施用包膜肥增产效果明显，包膜肥施肥量为1500 kg/hm2时产量最高，达到2066.9 kg/hm2。通过拟合建模，包膜肥用量为1611.0 kg/hm2 时，产量达到最高为2164.9 kg/hm2；而普通肥的用量为1870.5 kg/hm2时，最高产量为1904.8 kg/hm2，包膜肥产量增加13.6%，同时用量减少13.9%。

关键词: 茶皂素, 茶皂素, 瘤胃发酵, 调控

Abstract: To research the application effect of coated fertilizer on direct-seeding precocious rapeseed, a field experiment was conducted to investigate the effects of coated fertilizer on carbon and nitrogen metabolism and grain yield of‘Xiangzayou 1613’. The results showed that the metabolism of carbon and nitrogen increased under the application of coated fertilizer, and the content of chlorophyll (SPAD ) increased. In addition, total amounts of soluble sugar and free amino acids were relatively higher but the difference of concentration was not obvious. Moreover, branch number and pods number per plant increased obviously, and seeds number per pod and 1000-grain weight increased slightly. Furthermore, yield of oilseed increased significantly and reached the highest yield of 2066.9 kg/hm2 with the coated fertilizer rate of 1500 kg/hm2. Model fitting results of the production-fertilizer rate indicated that coated fertilizer at the rate of 1611.0 kg/hm2 increased the yields to the highest amount of 2164.9 kg/hm2, with fertilization amount reduced by 13.9% and oilseed yield increased by 13.6% compared with common fertilizer application amount of 1870.5 kg/hm2 and oilseed yield of 1904.8 kg/ hm2.