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研究灌溉生理是一項具有重大意义的課題。下面就我們几年来在小麦方面所得的資料,来探討灌溉生理中的几个問題。灌水时期的診断灌溉耕作中确定灌水时期是一项重要的任务。根据土壤湿度决定灌水期,在目前还不失为一个比較可靠的办法。但是要充分发揮灌水效益,光凭土壤湿度进行灌水是不够的,应該多从植物本身着眼。因为灌水的真正对象是植物,而不是土壤。 “看苗”灌水,首先应考虑植物的生长发育时期。植物在不同时期不但耗水量不同,而且耐旱性也不同;在不同生长时期灌水,在植物身上也会产生不同的效果。从植物方
Research on irrigation physiology is a topic of great significance. Here are a few of the issues in irrigating physiology that we have learned from wheat in the past few years. Diagnosis during irrigation The timing of irrigation during irrigated farming is an important task. According to the soil moisture to determine the irrigation period, at present it can be a more reliable way. However, to give full play to the benefits of irrigation, it is not enough to irrigate with soil moisture alone. We should focus more on the plants themselves. Because the real target of irrigation is the plant, not the soil. “See seedlings ” irrigation, first of all should consider the growth and development of plants. Plants not only consume different amounts of water at different periods, but also have different degrees of drought tolerance. When they are irrigated at different growth stages, they also produce different effects on the plants. From the plant side