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2BFML-5型固定壟免耕播種機設計與試驗
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    摘要:

    針對我國西北地區(qū)一年一熟綠洲農業(yè)區(qū)固定壟保護性耕作缺乏配套播種機具的問題,設計了2BFML-5型固定壟免耕播種機,。分析和確定了開溝器,、修壟犁等關鍵部件的結構參數(shù),。采用尖角式開溝器,,具有較強的破茬碎土能力,,并容易實現(xiàn)種肥分施,;修壟犁在播種時不僅能對邊行有效覆土,,而且對壟床起到較好的修復作用,。該機能一次完成破茬,、開溝施肥、播種,、覆土鎮(zhèn)壓和修壟等項作業(yè),。田間試驗表明:2BFML-5型固定壟免耕播種機入土能力強,在田間秸稈覆蓋量為3682kg/hm2條件下有較強的田間通過性能。和傳統(tǒng)播種機相比,,田間出苗率提高6.25%,、產(chǎn)量提高2.7%,較好地滿足了西北地區(qū)固定壟保護性耕作技術發(fā)展的需求,。

    Abstract:

    According to the problem of lacking suitable planter for permanent raised bed (PRB) in one crop a year oasis agricultural region of northwest China, a 2BFML-5 no-till planter for PRB was designed, the parameters of key components for opener, reshaping plough etc. were analyzed and decided. By means of adopting sharp-angle opener, the new planter could cut stubble and break clod, what was more, 5 cm of vertical depth difference between seeder and fertilizer could be achieved easily. The reshaping plough could not only cover seeder row effectively, but also reshape the old bed perfectly. The planter could finish stubble cutting, ditching and fertilizing, seeding, covering, compacting and reshaping bed in one pass. Experimental results showed that under straw cover of 3682kg/hm2, the planter, which was effective in entering the soil, anti-blocking and increasing emergence rate by 6.25% and yield by 2.7% respectively, could meet the developing requirement of PRB in northwest China.

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朱國輝,李問盈,何進.2BFML-5型固定壟免耕播種機設計與試驗[J].農業(yè)機械學報,2008,39(2):51-54.[J]. Transactions of the Chinese Society for Agricultural Machinery,2008,39(2):51-54.

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