农学家研究表明,农作物在生长期并不总是需要充足的水分,充足供水和适应控水交替,对提高产量才有利。与传统观念不同,他们认为,干旱缺水不总是降低产量。精确灌溉就是根据作物生理特点形成的既节水又增产的制度,当然,现阶段还难以实施精确灌溉,但是,采用这种科学的灌溉技术是必然的趋势。目前, Agronomist research shows that crop growth does not always require sufficient water, adequate water supply and adapt to the control of water alternate, to increase production is beneficial. Different from the traditional view, they think that drought and water shortage do not always reduce output. Accurate irrigation is based on the physiological characteristics of crops formed both water-saving and yield system, of course, at this stage is also difficult to implement precise irrigation, but the use of this scientific irrigation technology is an inevitable trend. Currently,