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本刊讯2009年3月2日,全国农业技术推广服务中心在山东临沂召开了全国缓控释肥推广工作会议。会议全面总结了2008年全国缓控释肥推广工作进展,并对
News 2 March 2009, the National Agricultural Technology Extension Service Center in Linyi, Shandong Province held a national slow release meeting to promote fertilizer. The conference comprehensively summarized the progress of the national slow-release fertilizer promotion in 2008 and was right