抗除草剂杂交谷子晋谷50号轻简高效配套栽培技术研究  

Simplified Cultivation Techniques for Millet Hybrid Jingu 50 of Herbicide Resistance

作　　者：景小兰[1] 李志华[2] 穆婷婷[2] 张福耀[2] 

机构地区：[1]山西省农业科学院,山西太原030006 [2]山西省农业科学院高粱研究所,山西榆次030611

出　　处：《作物杂志》2016年第2期168-172,共5页Crops

基　　金："十二五"国家科技支撑计划课题"谷子优质高产高效生产技术集成研究与示范"(2014BAD07B01)

摘　　要：对抗除草剂杂交谷子晋谷50号进行了化杀间苗、除草剂筛选简化栽培技术研究及最佳种植密度试验。结果表明:利用晋谷50号(真杂种率39%)抗除草剂的特性,与不抗除草剂的品种混播,播种量12kg/hm^2,当晋谷50号∶长农35号为1∶0.5和1∶1.0时,留苗均匀,且能保证留苗密度,是较好的混合比例;筛选除草剂结果显示,10%谷友可湿性粉剂和40%扑草净可湿性粉剂的除草效果较好,56%2甲4氯钠可湿性粉剂和57%2,4-D丁酯乳油在谷子三叶一心期喷施时,对谷苗产生药害,甚至造成死苗,结果与前人研究的相反,有待进一步研究;晋谷50号最佳种植密度在22.5万株/hm^2左右。The research of seedling thinning,herbicide screening,simplified cultivation techniques and optimum planting density in Jingu 50,a hybrid millet of herbicide resistance was studied. The results showed that the combination of Jingu 50 and varieties without herbicide resistance with a ratio of 1：0.5 and 1：1 was better to keep seedling density with a seeding quantity of 12kg/hm^2. Herbicide screening results showed that 10% Propazine WP＇s and 40% Prometryn WP＇s were better for weeding. When 56% MCPA WP and 57% 2,4-D Butyl EC were sprayed in millet three-leaf stage,it brought injury on seedling,even to death,which was contrary to the previous studies and needed further research to verify. The optimum planting density for Jingu 50 was about 225 000 plants/hm^2.

关 键 词：除草剂 杂交谷子 栽培技术 

分 类 号：S515[农业科学—作物学]