摘要
在控制氮肥总量的条件下,设计了6种不同比例基蘖肥与穗肥施用技术,2005年和2006年在贵州省贵阳市金竹镇和东风镇研究了杂交水稻精确施肥技术,以获得超高产。结果表明:以基蘖与穗粒肥比例为6∶4和5∶5产量最高,分别为11704 kg/hm2和11824kg/hm2,成穗率和氮素当季利用率也最理想;同时采用精确施肥技术水稻产量为12081 kg/hm2,比采用常规施肥技术2年平均增产13.93%。进行精确施肥技术大面积示范,也取得了显著的增产效果。
Designing application technique on 6 kinds ratio of basal and panicle fertilizer,accurate fertilizer application technique is studied to get super-high-yield hybrid rice under the condition of applying nitrogen in Jinzhu and Dongfeng towns of Guiyang City,in 2005 and 2006.The results shows that 6∶4 and 5∶5 ratios of basal and panicle fertilizer,the highest yield is 11 704 kg/hm2 and 11 824 kg/hm2,respectively,the spike rate and seasonal nitrogen use rate are most reasonable.Applying accurate fertilizer,the yield of hybrid rice is 12 081 kg/hm2,it increases 13.93% than average yield of past 2 years with conventional fertilizer.Accurate fertilizer application technique is applied in large-scale areas and significantly increases the yield of hybrid rice.
出处
《安徽农业科学》
CAS
北大核心
2009年第10期4459-4461,共3页
Journal of Anhui Agricultural Sciences
基金
贵州省优秀青年人才培养计划项目"杂交水稻超高产营养生理质量指标研究"[黔科合人字(2005)0521号]
贵州省攻关项目"贵州杂交水稻精确定量栽培技术体系研究与示范"[黔科合NZ字(2007)3003号]
贵州省农业科学院专项资金项目"自育杂交水稻超高产栽培大面积示范"[院ZX(2006)002号]
关键词
杂交水稻
超高产
精确施肥
试验
示范
Hybrid rice
Super-high-yield
Accurate fertilization
Experiment
Demonstration
