山东省大田条件下小麦宽幅精播适宜播种量研究  

Study on Suitable Seeding Quantity of Wheat under Wide-Precision Planting in Field in Shandong Province

作　　者：吕鹏 鞠正春 高瑞杰 韩伟 柴兰高 于安军 张晓雱 Lü Peng;Ju Zhengchun;Gao Ruijie;Han Wei;Chai Langao;Yu Anjun;Zhang Xiaopang(Shandong General Station of Agricultural Technology Extension, Jinan 250013, China)

机构地区：[1]山东省农业技术推广总站,山东济南250013

出　　处：《山东农业科学》2018年第5期34-37,共4页Shandong Agricultural Sciences

基　　金：山东省现代农业产业技术体系小麦创新团队栽培与土壤肥料岗位课题(SDAIT-01-08)

摘　　要：本试验以济麦22为材料,在山东省内有代表性的8个地级市下属县区设置5个播量梯度,研究大田条件下宽幅精播不同播量对小麦群体性状及产量的影响。结果表明:随播量增加,全生育期单位面积茎数显著提高,单株分蘖减少,单株次生根减少,单株成穗率降低;随播量增加,产量呈现先增加后降低趋势,播量150 kg/hm^2较播量75 kg/hm^2产量显著提高,播量提高到225 kg/hm^2增产不显著。综合认为,本试验区域内适宜播量为150 kg/hm^2,基本苗适宜范围为257万/hm^2左右。The effects of seeding quantity on grain yield and population characters of wheat under wide-precision planting in field were studied in 8 cities of Shandong Province. Jimai 22 was selected as experimental material and 5 kinds of seeding quantity were designed. The results showed that with the increase of seeding quantity,the number of stems per unit area in the whole growth period increased significantly,and the tillers,secondary roots and percentage of earbearing tillers per plant decreased; the grain yield increased firstly and then decreased. The grain yield increased significantly at the seeding quantity of 150 kg/hm^2 compared with75 kg/hm^2,but it could not increase significantly when the seeding quantity increased from 150 kg/hm^2 to 225 kg/hm^2. In conclusion,the suitable seeding quantity for this test area was 15 kg/hm^2,and the suitable range of basic seedlings was about 2 570 thousand per hectare.

关 键 词：山东省 小麦 大田条件 宽幅精播 播量 

分 类 号：S512.101[农业科学—作物学] S512.252