施肥技术对迟熟中粳糯稻“皖稻68”产量影响的研究  

Research of Effects of Fertilization Techniques on Yields of Late Maturity Japonica and Glutinous Rice Cultivar"Wan Dao 68"

作　　者：王向平[1] 冯和平[2] 陈楠[1] 陈刚[1] 黄义德[1] 

机构地区：[1]安徽农业大学农学院,安徽合肥230036 [2]广西大学农学院,广西南宁530004

出　　处：《中国农学通报》2008年第11期228-230,共3页Chinese Agricultural Science Bulletin

基　　金：国家科技支撑计划"粮食丰产工程"(2006BAD02A06)。

摘　　要：为了探索高产优质高效的水稻施肥技术,在大田条件下,以迟熟中粳糯稻"皖稻68"为试验材料,研究不同施氮量、不同追氮时期和不同氮磷钾比例对水稻产量及其构成因素的影响。结果表明:(1)施氮量、追氮时期和不同氮磷钾比例对产量有显著影响;(2)施氮量300.0kg/hm2处理产量最高,施氮量337.5kg/hm2处理产量次之,产量如果要获得10000kg/hm2以上生产水平,需施纯氮300.0～337.5kg/hm2;(3)在施氮量为300.0kg/hm2、氮肥基蘖肥和穗肥比例为7:3、追氮时期在倒4叶至倒3叶期时,产量最高;(4)施氮量为300.0kg/hm2、基蘖肥和促花肥比例为7:3、氮磷钾比例在1:0.3:0.3～0.6时,有利于"皖稻68"高产。The objective of this study was to explore high yield, high quality and efficient fertilization technologies of rice, and ＂Wan Dao 68＂ was took for experiment material under field condition and effects of different nitrogen rates, different nitrogen topdressing stages and different ratios of npk on yield and yield eomponents of rice were researched. The resuhs showed that： （1） nitrogen rate, nitrogen topdressing stage and npk ratio have remarkable effects on yield; （2） when yield, then was 337.5 kg/hm^2; it was need 300.0-337. hm^2; （3） the highest yield could be gained when nitroge nitrogen rate was 300.0 5kg/hm^2 pure nitrogen to n rate was 300.0kg/hm^2, kg/hm^2 could gain maximum gain yield above 10000 kg/gm^2; the ratio of basic tiller nitrogen to ear granule nitrogen was 7：3 and nitrogen topdressing stages were from inverse fourth leave stage to inverse third leave stage; （4） when nitrogen rate was 300.0kg/hm^2, the ratio of basic tiller fertilizer to ear promoting hlossom fertilizer was 7：3 and the ratio of npk was 1：0.3：0.3-0.6, there has beneficial to high yield of ＂Wan Dao 68＂.

关 键 词：施肥技术 产量 产量结构 

分 类 号：S511[农业科学—作物学]