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《Southwest China Journal of Agricultural Sciences》 2011-02
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Design and Experiment of 2BMFDC-6 Half-tillage Seeder of Wheat after Rice

LI Chao-su1,TANG Yong-lu1,XIE Li-sheng2,HUANG Gang1,ZHONG Gui-xiang3,WU Chun1,CHENG Shao-lan3(1.Crop Research Institute,Sichuan Academy of Agricultural Sciences,Sichuan Chengdu 610066,China;2.Jinyang Agricultural Machinery Material Limited Liability Company of Deyang City,Sichuan Deyang 618000,China 3.Agricultural Mechanization Bureau of Jingyang District,Deyang City,Sichuan Deyang 618000,China;4.Agricultural Department of Sichuan Province,Sichuan Chengdu 610041,China)  
In order to overcome bad sowing quality because of wet and heavy soil and improve rice straw returning quality,2BMFDC-6 half-tillage wheat seeder was designed.The seeder was drived by walking tractor.The weight of whole machine was 150 kg.It destroyed soil litter in working and was suitable for wheat field after rice reaping.When it was working,the seeding belt was rotary tillage and other parts were no tillage.The depth and width of ditching were 3-4 and 5-6 cm,seeding width 1.38m,row spacing 23cm.Fertilizer and seed fell successively in the ditch bottom.Seeding efficiency was 5.5-6.0 h/hm2.Rice straw which was chopped when harvesting with half-feeding type harvester could be used to cover seed.The field experiment showed that,no matter rice straw returning,2BMFDC-6 half-tillage wheat seeder had good adaptability.With no straw returning,sowing quality,yield and planting benefit were all higher than SGTNB-180Z4/8 and broadcast seeding.Compared with whole feeding type harvester,rice harvested by half feeding type was beneficial to improve seeding quality of 2BMFDC-6 seeder.In seeding stage,the suitable soil moisture content was 25 %-40 %,seeding rate 120-180kg/hm2,nitrogen rate 150-180 kg/hm2.
【Fund】: 国家科技支撑计划项目(2006BAD15B082007BAD89B15);; 四川省粮食丰产科技工程;; 国家现代农业产业技术体系建设专项资金
【CateGory Index】: S223.25
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