期刊论文

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

中文

中国农学通报

1000-6850

2017

33

6

42-47

(2014BAC09B01-01):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” :国支撑计划课题“城郊环保型高效农业关键技术研究 (2014BAD14B01):示范” (2012BAD15B04):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”

本校为第一机构

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%。

To research the application effect of coated fertilizer on direct-seeding precocious rapeseed, a fieldexperiment was conducted to investigate the effects of coated fertilizer on carbon and nitrogen metabolism andgrain yield of‘Xiangzayou 1613＇. The results showed that the metabolism of carbon and nitrogen increasedunder the application of coated fertilizer, and the content of chlorophyll（SPAD） increased. In addition, totalamounts of soluble sugar and free amino acids were relatively higher but the difference of concentration was notobvious....