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玉米是我市主要粮食作物之一。随着玉米种植大面积逐年扩大,杂交种大面积推广,丝黑穗病就成为玉米生产上一个主要病害。1973年蓟县大面积推广群单105时,丝黑穗病普遍发生,使玉米遭受严重减产,给实现粮食全年丰收带来不良影响。为了落实:“深挖洞,广积粮,不称霸”的伟大号召,积极防治这一病害是广大贫下中农的迫切要求,同时受到各级领导的重视,1974年全县组织了18个单位共同进行试验研
Corn is one of the main food crops in our city. With the large-scale expansion of corn planting year by year, large-scale promotion of hybrids, head smut has become a major maize production on the disease. In 1973, a large-scale popularization group Jixian County 105 resulted in the occurrence of head smut which severely reduced the yield of maize and adversely affected the full-year grain harvest. In order to implement the great call of “digging deep holes, widening grain and not seeking hegemony,” actively controlling this disease is an urgent demand of the vast majority of poor and middle peasants and is also valued by leaders at all levels. In 1974, the county organized 18 units to work together Conduct experimental research