气力滚筒式水稻精量排种器的研究

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1、■■禍Ｈ睾ＵＡ中；ｍ津ＺＨＯＮＧＡＧＲＩＣＵＬＴＵＲＡＬＵＮＩＶＥＲＳＩＴＹＩ博±学位论文ＰｈＤＤＩＳＳＥＲＴＡＴＩＯＮ气力滾筒式水稻精量排种器的研究ＲＥＳＥ乂ＲＣＨＮＣＹＬＩＮＤＥＲ－ＴＹＰＥＯＰＮＥＵＭＡＴＩＣＰＲＥＣＩ別ＯＮＳＥＥＤ－ＭＥＴＥＲＩＮＧＤＥＶＩＣＥＦＯＲＲＩＣＥＩ妍究生：张顺ＣＡＮＤＩＤＡＴＥ：ＺＨＡＮＧＳＨＵＮ之师：夏俊芳教授导ＳＵＰＥＲＶＩＳＯＲ：ＰＲＯＦＥ％ＯＲＸＩ乂ＪＵＮＦＡＮＧ专业：农业観化工程Ｍ乂ＪＯＲ：ＡＧＲＩＣＵＬＴＵＲ

2、ＡＬＭＥＣＨＡＮＩＺＡＴＩＯＮＥＮＧＩＮＥＥＲＩＮＧ妍究方向：现代农业装备设计与测控＇ＦＩＥＬＤ：ＭＯＤＥＲＮＡＧＲＩＣＵＬＴＵＲＡＬ；ＥＱＵＩＰＭＥＮＴＳＤＥ別ＧＮＡＮＤＭＥＡＳＵＲＥＭＥＮＴ－ＣＯＮＴＲＯＬ■中国武汉ＷＵＨＡＮ，ＣＨＩＮＡ■二〇－五年十或■ＤＥＣ２０１５，Ｉ分类号密级华中农业大学博士学位论文气力滚筒式水稻精量排种器的研究ResearchonPneumaticCylinder-typePrecisionSeed-meteringDeviceforRice研究生:张顺学号:

3、2012307010010指导教师:夏俊芳教授专业：农业机械化工程研究方向：现代农业装备设计与测控获得学位名称：工学博士获得学位时间：2015年12月华中农业大学工学院二○一五年十二月气力滚筒式水稻精量排种器的研究目录目录···································································································i摘要··································································

4、·······························ivAbstract······························································································iv第1章绪论························································································11.1课题研究的目的和意义···································

5、·······························11.1.1水稻的粮食地位·································································11.1.2水稻的种植模式·································································11.1.3水稻直播种植及研究现状·····················································31.2精量排种器的研究现状········

6、·························································101.2.1排种器的类别及工作原理····················································101.2.2国外气力式排种器的研究现状··············································131.2.3国内气力式排种器的研究现状··············································141.3研究目的和研究内容······

7、······························································191.3.1研究目的·········································································191.3.2研究内容·········································································201.3.3研究技术路线····································

8、·······························21第2章水稻芽种物料特性的试验