黑土区春旱主要危害小麦,常可造成严重减产。但在生产实践中由于田块条件不同或采取了不同农业技术措施,即使并无灌溉条件也可收到差异悬殊的产量效果。如九三地区红五月农场在1965年特大春旱年,十万余亩小麦单产平均只获得103斤/亩,不到常 Spring drought in the black soil area is a major hazard to wheat and can often result in severe cuts. However, in production practice, due to the different conditions of the plots or the adoption of different agricultural technology measures, different types of yield effects can be received even in the absence of irrigation. For example, in the May-March Red Hong May Farm, in the spring of 1965 when the spring drought was over, the yield per hectare of wheat of only 100,000 mu averaged only 103 kg / mu, less than usual