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我省淮北麦区,小麦收获期间雨涝发生频率高,持续时间长。据资料记载6月上中旬持续3天连阴雨的发生机率高达40％以上。雨涝的发生导致在田小麦无法收割而在穗上发芽,已收小麦或无法脱粒或脱后无法晾晒而发芽霉烂,严重地影响品质,降低产量。一般小涝年份损失5～7％,大涝年份达15％以上。我们认为要减轻或杜绝小麦雨涝损失,必须着重抓好以下几个方面:
Huaibei Province, our province wheat, wheat harvest during the high frequency of floods, long duration. According to the information recorded in June on the 3rd consecutive days with the incidence of rain even more than 40%. The occurrence of rainstorm causes the wheat in the field can not be harvested and germinates on the ear, the wheat that has been received or can not be threshed or taken off can not be dried and germinated, which seriously affects the quality and reduces the output. The average loss of small floods in the years 5 to 7%, flood years reached 15% or more. We think it is necessary to focus on the following aspects to alleviate or eliminate the loss of wheat from waterlogging: