论文部分内容阅读
本文通过发菜在生长期间对水的特殊需求进行对比试验,以探求当地条件下发菜的耗水规律。又分别对土壤含水量、喷水量,不同喷头的水滴直径、空气湿度、蒸发量等指标进行测定,指出:①人工栽植发菜,采用微喷灌技术能够满足节律性周期供水的需要,当水份蒸发到2%以下时表明新的灌水周期开始;②微喷技术能改变田间小气候,有利于发菜生长,③采用微型喷头既能降低能耗,又节约用水量。
In this paper, we compared the special needs of water during the growth period to explore the law of water consumption of Chinese cabbage under local conditions. The indexes of soil water content, water spray volume, water droplet diameter of different nozzles, air humidity, evaporation and so on were also measured separately. It was pointed out that: ①Planting planted with micro-sprinkling technology can meet the needs of rhythmic periodic water supply, When the evaporation is below 2%, it indicates that the new irrigation cycle begins; ② Micro-jetting technology can change the microclimate in the field and is conducive to the growth of the hairy plants; and ③ The miniature nozzle can not only reduce the energy consumption but also save the water consumption.