氮肥运筹对钵苗机插稻产量及形成的影响  

Effects of Nitrogen Application on Yield and Yield Formation of Pot-Seedling Mechanical Transplanting Rice

作　　者：张军[1] 王兴龙[1] 方书亮[1] 张永进[1] 刘忠红[1] 杜乃通 

机构地区：[1]淮安市农业技术推广中心,江苏淮安223001

出　　处：《中国稻米》2016年第2期39-42,共4页China Rice

基　　金：江苏省农业"三新"工程[SXGC(2014)137];淮安市农业科技支撑计划项目(HAN2014016)

摘　　要：以淮稻11号和甬优2640为材料,研究了基蘖肥与穗肥不同比例对钵苗机插稻产量及产量构成的影响。结果表明,基蘖肥与穗肥比例为7∶3或6∶4时,2个品种穗粒结构协调性好;群体茎蘖消长平稳,最终成穗率达70%以上,并能增加中后期群体叶面积指数和干物质积累,最终实产明显高于其他比例处理。The effects of nitrogen application ratio on yield and yield formation of pot-seedling mechanical transplanting rice were studied in this paper, with Huaidao 11 and Yongyou 2640 as materials. The results showed that the relation between panicle and grains, and the yield were better than other treatments, when the basal fertilizer and panicle fertilizer ratio is 7 ∶3 or 6∶4. The population tillers were growing and declining steadily, the spike rates were above 70%, the leaf area index and biomass increased with the treatments of 7∶3 or 6∶4 in the middle and late growth stage.

关 键 词：水稻 钵苗机插 氮肥运筹 产量 

分 类 号：S511.062[农业科学—作物学]