Mechanized conservation tillage technique has been studied in Linfen, Shanxi province for many years.
机械化保护性耕作技术在山西临汾开展研究已经有多年了。
Secondly, bringing up the conservation tillage agriculture technique norm of spring corn and its mechanization production craft project.
编制春玉米保护性耕作农艺技术规范并拟定其机械化生产工艺方案；
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