红糯16号高粱在淮北地区夏播生产表现及高产栽培技术

Production Performance and High-yield and High-efficiency Cultivation Techniques of Hongnuo 16 Sorghum in Huaibei Area

红糯16号高粱是由山西省农业科学院高粱研究所培育,在淮北地区夏播播期可推迟到6月底,全生育期128d左右。大面积生产应采用高粱专用播种机播种,一般行距55~60cm、深度3~5cm,播种量9~12kg/hm^2;播后20d左右进行间苗,保留密度12万~15万株/hm^2;高粱3~5叶期、杂草2~4叶期时,使用二氯·莠去津进行茎叶处理以防治田间杂草;用背负式人工施肥机沿高粱行条施拔节孕穗肥;8月上旬高粱吐穗前以及9月初高粱吐穗后10d左右采用飞机飞防办法,使用阿维菌素、氯氰菊酯、苏云杆菌交替防治螟虫。

Hongnuo 16 sorghum is cultivated by Sorghum Research Institute of Shanxi Academy of Agricultural Sci⁃ences.The summer sowing date in Huaibei area can be postponed to the end of June,and the whole growth period is about 128d.For large-scale production,sorghum seeder should be used for sowing,with a general row spacing of 55~60cm,a depth of 3~5cm,and a sowing quantity of 9~12kg/hm^2;About 20d after sowing,the seedlings were thined to ensure that 120,000~150,000 plants/hm^2;Dichloride was used in sorghum at leaf 3~5 and weed at leaf 2~4.The stem and leaves of atrazine were treated to control weeds in the field.Using knapsack manual fertilizer ap⁃plicator,jointing and booting fertilizer was applied along sorghum rows.In early August,before and about 10d after panicle of sorghum in early September,the aircraft flight prevention method was adopted,and avermectin,cyperme⁃thrin and Bacillus thuringiensis were used to alternately control borers.