www.黄色毛片 I 午夜剧场一级片 I 色婷婷中文 I 五级黄色片 I 日本精品一区二区在线观看 I 国产福利三区 I 午夜黄视频 I av无码av高潮av喷吹免费 I 98超碰在线 I 亚洲夜夜爱 I 嘿咻视频在线观看 I 天天爽夜夜爽视频精品 I 久久久久1 I 欧美一级片网址 I 色老二导航 I 久久久一区二区精品 I 你懂的91 I 亚洲乱码中文论理电影 I 国产黄色免费片 I 亚洲国产精品久久久久秋霞影院 I 99中文字幕 I 中文字幕四区 I 在线三级av I 青青草手机视频 I www.亚洲视频.com I 欧美日韩国产成人高清视频 I 国产精品爱久久久久久久电影 I 免费嗨片首页中文字幕 I 天天色综合4 I 日韩中文字幕免费在线观看 I 久久国产精品网站 I 在线免费观看福利影院 I 成人丁香在线 I 米奇777影视狠狠狠 I 色噜噜狠狠色综合欧洲selulu

What is the effect on water conversation and plant quality?

In urban centers affected by drought and limited irrigation resources, the go-to recommendation for conserving water has traditionally been to water turf and garden landscapes at night. In recent years, however, population growth and development have led to supply demands at night that exceed the capacity of irrigation infrastructure. Given these challenges, urban water districts must balance maintaining conservation practices with customer demand.

Current assumptions are that nighttime irrigation is more efficient due to less evaporative demand (more humidity, lower temperature, no solar radiation, less wind. etc). However, watering in the afternoon could be more efficient because it coincides with peak photosynthesis and has microclimate cooling effects.

With these questions in mind, Assistant Professor, Melanie Stock, and graduate student, Samikshya Pyakurel, at Utah State University sought to quantify whether nighttime irrigation really conserves water—and how much—as well as measure the effects on plant aesthetics, yield, and health.

To accomplish this, six identical plots of turfgrass and six plots of zinnia cut flowers (a popular and representative urban garden crop) were established, assigned irrigation timing treatments, and heavily instrumented to measure a water-energy balance. Apogee sensors used include Infrared Radiometers (SI-411-SS) to measure surface and canopy temperatures and Net Radiometers (SN-500-SS) to measure the four components of radiation and calculate albedo. The plots were also equipped with air temperature and humidity sensors, soil moisture and temperature sensors, irrigation flow meters, and catch cups, while the field is home to a weather station managed by the USU Climate Center. In all, 329 measurements are automated every 15 minutes at the site, while 162 measurements are collected by hand three times a week. This study makes use of the SDI-12 digital output, one of the most significant advances in sensor technology that allows for minimal datalogging equipment.