生姜是山东省沂南县常年种植的主要经济作物,2014年全县种植面积5万亩,年产值8.16亿元,是当地农民重要的收入来源。由于连年种植,大量施用化肥,致使重茬严重,土壤板结,病害重发,生姜产量降低。为解决这一问题,2014年沂南县土肥站选用绿天微生物菌剂在生姜主产区开展了试验研究。绿天微生物菌剂是利用高科技生物 Ginger is the main cash crop planted year-round in Yinan County, Shandong Province. In 2014, the entire county planted 50,000 mu of land with an annual output value of 816 million yuan, making it an important source of income for local farmers. As successive years of planting, a large number of chemical fertilizers, resulting in heavy stubble, soil compaction, disease recurrence, reduced ginger production. In order to solve this problem, in 2014, Yinan County Soil Fertilizer Station selected green microbes to carry out experimental research in the main producing areas of ginger. Green days microbial agents is the use of high-tech biological