摘要
在2010年试验的基础上,2011年进一步从施氮量、施氮方式、栽插密度方面研究晋稻8号的栽培技术。结果表明,在8个处理中,施氮量210 kg/hm2、栽插密度22.8万穴/hm2、施氮方式不同的2个处理产量排前2位。基肥、蘖肥、穗肥按3∶3∶4的施氮比例更适合晋稻8号的生长发育,增产效果明显。在施氮量、施氮方式相同时,产量及穗粒性状都是栽插密度22.8万穴/hm2的处理表现好,表明该密度适合晋稻8号栽培。施氮量210 kg/hm2,基肥、蘖肥、穗肥按3∶3∶4的施氮比例,栽插密度22.8万穴/hm2的处理产量最高,其在有效穗、成穗率、结实率、千粒质量上表现较突出,是3个因素的最佳组合,适合在晋稻8号栽培中应用。
Based on the field experiment in 2010, a further research of Jindao 8 was conducted with different nitrogen quantity, nitrogen application methods and planting density. At nitrogen quantity 210 kg/hm2 and planting density 22.8 million points/hm2, the grain yield by two nitrogen application methods ranked the top two in eight handles, and one of the two methods- basal fertilizer 30%, fertihzer for tillering 30%, earing fertilizer 40%--was more suitable for the growth of Jindao 8 and had a significant effect on the increase of grain yield. With the same nitrogen quantity and nitrogen application methods, the 22.8 million points/hmz planting density had significant effect on grain yield and seed quality of Jindao 8. Jindao 8 obtained the highest yield at nitrogen quantity 210 kg/hm2,nitrogen application method of basal fertilizer 30%, fertilizer for tillering 30%, earing fertilizer 40% and at 22.8 million points/hm2 planting density. The three influential factors had a significant effect on the number of productive ear, bearing tiller, maturing rate and 1 000 grain weight. The planting density had more effect than nitrogen quantity in influential factors.
出处
《山西农业科学》
2012年第6期632-634,639,共4页
Journal of Shanxi Agricultural Sciences
基金
山西省星火计划项目(20110510004)
山西省农业科学院科技攻关项目(YGG1032)
关键词
晋稻8号
施氮量
栽插密度
施氮方式
产量
Jindao 8
nitrogen quantity
planting density
nitrogen application methods
grain yield
