Research Progress of No/Minimum Tillage Corn Seeding Technology and Machine in Northeast Black Land of China

WANG Qingjie, CAO Xinpeng, WANG Chao, LI Hongwen, HE Jin, LU Caiyun

Abstract

The protection and utilization of black land in Northeast China had great significance to ensure national food and ecological security. Conservation tillage technology with straw mulching and no/minimum tillage corn seeding as the main technical features was the main technical means for the protection and utilization of black soil in Northeast China. The current no/minimum tillage technology model and supporting equipment of corn seeding in the northeast black soil regions of China were summarized, the seedbed treatment machine used before and during no/minimum tillage seeding of corn were listed, comparative analysis of the working principle and technical characteristics of the seedbed treatment machine under the condition of straw mulching was focused, and the techniques of stubble breaking and furrowing, precise sowing, covering and suppressing of seed in no/minimum tillage seeding of corn were briefly introduced. Based on the overview of main problems existing in the no/minimum tillage corn seeding technical modes and supporting equipment, it was expounded that intensive study should focus on the seedbed treatment, high-speed precision seed metering, intelligent electric drive seed metering, intelligent control of seeding depth, no/minimum tillage ridge seeding and integration of agricultural machinery and agronomy, and it was expected to provide equipment and technical support for the research of no/minimum tillage corn seeding technology and machine in black soil regions of Northeast China.


Keywords: black land, conservation tillage, no/minimum tillage, seedbed treatment, corn

 

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