干旱区生态环境知识资源中心(Arid): 旱地苜蓿全膜覆盖精量播种机的设计与试验

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	旱地苜蓿全膜覆盖精量播种机的设计与试验
其他题名	Design and experiment of a machine for alfalfa seeding and paving membrane in dry land
	赵春花
来源期刊	甘肃农业大学学报
ISSN	1003-4315
出版年	2015
卷号	50 期号:1 页码:175-180
中文摘要	针对西北地区干旱、风沙大、苜蓿播种存在种子发芽率低、播量调节困难等问题,研制了一款旱地苜蓿全膜覆盖精量播种机,介绍了该机的工作原理、主要工作部件的结构特点,利用Solidworks对平土板进行强度校核,并进行了田间播种性能试验.结果表明:平土板以最小安全系数大于1.29的5 mm厚钢板最经济可靠;土壤类型、播种深度、机具速度是影响播种机作业质量的重要因素,播种机以4 km/h速度在砂土里作业,播深20 mm时,作业效果最好,空穴率为2.9%,膜下播深合格率为92%,穴粒数合格率为90.8%.
英文摘要	In order to solve the problems on adjusting difficultly seeding quantity,and being a lower germination of seeds,a new precious machine were developed for alfalfa seeding and paving membrane in dry land.The principle of the machine and the structure of main parts were introduced.The stiffness of the flat plate was checked by Solidworks,and planting performance was tested in the field.The results indicated that grading board with 5 mm thick could get the most economical and reliable performance,the minimum safety factor was more than 1.29.Major impact factors involved soil type,seeding depth and working speed.The optimum efficient could reach with seeding at 20 mm depth,speed at 4 km/h.Under this condition,the rate of vacancy,seeding depth qualified and vacancy qualified was 2.9%,92% and 90.8%.
中文关键词	苜蓿 ; 播种机 ; 设计 ; 干旱地区
英文关键词	alfalfa seeder design arid area
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Agriculture
WOS研究方向	Agriculture
CSCD记录号	CSCD:5384960
来源机构	甘肃农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/232591
作者单位	赵春花, 甘肃农业大学工学院, 兰州, 甘肃 730070, 中国.
推荐引用方式 GB/T 7714	赵春花. 旱地苜蓿全膜覆盖精量播种机的设计与试验[J]. 甘肃农业大学,2015,50(1):175-180.
APA	赵春花.(2015).旱地苜蓿全膜覆盖精量播种机的设计与试验.甘肃农业大学学报,50(1),175-180.
MLA	赵春花."旱地苜蓿全膜覆盖精量播种机的设计与试验".甘肃农业大学学报 50.1(2015):175-180.

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