摘要
分析了目前国内外关于小麦免耕播种机的研究情况,提出了适合我国北方旱作农业的小麦免耕播种机的设计思路,设计出8行悬挂式小麦免耕施肥播种机;对用凹圆盘施肥开沟器和梭形播种开沟器组成的小麦免耕施肥播种开沟器单体的工作特点和种肥分施方案进行了理论分析和田间试验,指明了该种开沟器单体的优缺点。
Studies on no-tillage grain drill in China and abroad are introduced,and the general principle of design of the no-tillage grain drill suitable for dryland farm- ing in Northern China is presented.As a result,a mounted 8-row no-tillage grain drill is designed,and the performances of seed and fertilizer application units con- sisting of a concave disk opener and a shuttle-shaped opener in the drill are investi- gated theoretically and practically.The advantages and disadvantages of the open- ers are put forward.
基金
国家"八五"科技攻关项目
关键词
小麦
免耕播种机
开沟器
施肥
旱地
no-tillage grain drill
seed and fertilizer saparating application
opener
