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近年来,由于农田水利建设的发展,灌溉面积不断扩大,特别是在三年持续大旱的条件下,对保证我省小麦增产稳产,发挥了十分重要作用。但是,在科学用水方面,还存在不少问题。诸如农田灌水工程不配套、大水漫灌,浪费水源,不能按照小麦的需要及时供水,单纯追求灌水次数,不注意灌水效益等。为了正确认识小麦的需水量和需水规律,掌握合理的灌溉技术,对夺取小麦高产是十分重要的。一、小麦的需水量与需水规律
In recent years, due to the development of farmland water conservancy construction, irrigated area has been expanding constantly, especially under the conditions of three years of severe drought, which has played a very important role in ensuring stable and stable yield of wheat in our province. However, there are still many problems in the scientific use of water. Such as farmland irrigation project is not complete, flood irrigation, wasting water, timely delivery of water can not be in accordance with the needs of wheat, the simple pursuit of irrigation times, pay no attention to irrigation efficiency. In order to correctly understand the law of water requirement and water requirement of wheat and to master the reasonable irrigation technology, it is very important to capture the high yield of wheat. First, the demand of wheat and water demand