不同秧盘播种量对垦稻12、绥粳4混种产量的影响  

The Effects of Different Mixed Sowing Amount on Yield between Kendao12 and Suijing4

作　　者：刘传增[1] 

机构地区：[1]黑龙江省农业科学院齐齐哈尔分院,黑龙江齐齐哈尔161006

出　　处：《耕作与栽培》2017年第2期19-20,共2页Tillage and Cultivation

摘　　要：优质粳稻垦稻12、绥粳4按4:6的比例混合种植的栽培方法,已经在黑龙江省第二积温带大面积推广应用。试验研究了不同播种量对混种水稻产量的影响,结果表明:随着播种量的增加,水稻秧苗株高增高,叶片数减少,根数减少,茎基宽与充实度减小,秧苗地上部、地下部百株鲜质量与干质量均呈减小趋势,而根系盘结力增强,秧苗立枯病病株率及病情指数也随之增高,水稻产量以110g/盘干籽处理最高,达9292.47kg/hm^2。Mixed cropping of 4：6 proportiong between high quality japonica rice Kendaol2, Suijing4 is widely used way of planting in the third temperature zone of Heilongjiang province, effects of different sowing quantity on seedling quality was studied. The results showed that with the increase of seeding amount, seedling height increased, leaf number, root number, stem width and plumpness de- creased, and weight,fresh weight of per one hundred seedling aboveground and underground decreased, while the root set strength- ened, disease rate and disease index of seedlings increased, rice yield was highest by 110g/disk dry seed treatment, reaching 9292. 47kg/hm2.

关 键 词：播种量 混种 产量 

分 类 号：S511.22[农业科学—作物学]