作物研究Issue(6)：589-592,4.DOI:10.3969/j.issn.1001-5280.2014.06.03
不同追肥时期和施肥量对机插双季晚稻产量和经济效益的影响
Effects of Fertilizing Time and Application Amount on the Yield and Economic Benefits of Machine Transplanting Double Cropping Late Rice
摘要
Abstract
The effects of different time and application amount of fertilizer on the yield and economic benefits of machine transplanting late rice by using H you 518 as material were studied in the present paper.The results showed that the num-ber of effective tillers were highest with 382.5 ten thousand per ha under the treatment of application fertilizer 6 days after transplanting.And the grain numbers per spike were highest with 109.4 kernel under the treatment of application fertilizer 8 days after transplanting,which increased by 0.9 and 0.6 kernel per spike compared with the treatments of application fertilizer 4 days and 6 days after transplanting.There were no significant differences in the seed setting rate among treat-ments.The yield of the treatment of application fertilizer 6 days after transplanting was increased by 3.9% and 4.3% than that of the treatments 4 days and 8 days after transplanting respectively.And the economic benefits of these three treatments showed the tendency of treatment 6 days after transplanting >treatment 4 days after transplanting >treatment 8 days after transplanting.The results indicated that the best date of application fertilizer was 6 days after transplanting,and the appli-cation amount of fertilizer were lightly,elemental nitrogen and potassium fertilizer.After the tillering stage,the application amount of fertilizer was increased,and the kinds of fertilizer were available nitrogen and compound fertilizer.关键词
晚稻/机插/施肥/产量/经济效益Key words
Late rice/Machine transplanting/Fertilization/Yield/Economic benefits分类
农业科技引用本文复制引用
李铁牛,晏国华,徐一兰,曹超群,李木良,李红,秦菊华,李薇..不同追肥时期和施肥量对机插双季晚稻产量和经济效益的影响[J].作物研究,2014,(6):589-592,4.基金项目
国家粮油棉高产创建项目（2013）。 （）
