大颖草最佳播种量和行距的试验初报  

PRELIMINARY REPORT ON OPTIONAL SEEDING RATE AND ROW SPACING OF THE ROEGNERIA GRANDIGLUMIS KENG

作　　者：贾顺斌[1] 汪新川[2] JIA Shun-bin(The Grassland Station of Qinhai Province,Xining Qinghai 810008,China)

机构地区：[1]青海省草原总站,青海西宁810008 [2]青海省牧草良种繁殖场,青海同德813201

出　　处：《青海草业》2018年第2期11-13,共3页Qinghai Prataculture

摘　　要：通过试验,探讨了青海省牧草良种繁殖场地区大颖草最佳播种量和播种行距。试验表明:(1)播种行距为20cm、播种量30kg/hm^2时,产草量最高;播种行距30cm、播种量20kg/hm^2时产籽量最高。(2)不同处理对大颖草的生育期虽有影响,但不明显。随着行距加大,播种量增大,生育期缩短,反之则相反。Through experiment we discussed the optimal seeding rate and row spacing in Tong De Fertile breeding grounds for herbage in Qinghai province. the result shows that（ 1） ： the grass yield reached highest whene row spacing was 20 cm,seeding rat was 30 kg/hm^2; the seed yield reached highest when row spacing was 30 cm,was 20 kg/hm^2.（ 2） different treatments had an impact on the growth period of the Roegneria grandiglumis Keng,but it was had no significant influence. As seeding rate was raise with the seeding rate increase,reverse the growth period is shortened,the result on the contrary when the factor is opposite.

关 键 词：大颖草 播种量 行距 生育期 鲜草产量 种子产量 

分 类 号：S604[农业科学—园艺学]