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Tensiometer-Based Irrigation Scheduling: Drip-Irrigated Bell Pepper Under Naturally Ventilated Polyhouse
Published in Ajai Singh, Megh R. Goyal, Micro Irrigation Engineering for Horticultural Crops, 2017
Ashwani Kumar Madile, P. K. Singh
The WUE for each treatment was calculated by dividing the total yield obtained in each treatment to the total depth of water application during its growing period. WUE,kg/m3=[yield,kg/m2]/[totalirrigationdepth,m] $$ WUE, kg/m3 = [yield, kg/m2]/[total irrigation depth, m] $$
The water, energy, and food nexus
Published in William Sarni, Tamin Pechet, Water Tech, 2013
In 2011, The Green Grid proposed a new metric for its members to use. This metric, “water usage effectiveness” (WUE), enables data center operators to quickly assess the water, energy, and carbon sustainability aspects of their data centers, compare the results, and determine if any energy efficiency and/or sustainability improvements need to be made. Over the past few years, The Green Grid has developed a numbers of metrics so data centers can more effectively manage energy on a standardized basis. The metrics are widely adopted within the technology industry.
Phytoaccumulation of Zn, Pb, and Cd in Conocarpus lancifolius irrigated with wastewater: does physiological response influence heavy metal uptake?
Published in International Journal of Phytoremediation, 2020
Fahad Rasheed, Zikria Zafar, Zulfiqar Ali Waseem, Muhammad Rafay, Muhammad Abdullah, Mir Md Abdus Salam, Muhammad Mohsin, Waseem Razzaq Khan
A portable Infrared Gas Exchange Analyzer (CIRAS-3, Amesbury, USA) was used to measure the gas exchange parameters, including net CO2 assimilation rate (μmol m−2 s−1), transpiration rate (mmol m−2 s−1) and stomatal conductance (mmol m−2 s−1). One pre-selected, well-lit and fully-developed leaf from ten plants per treatment were chosen and placed in 6 cm3 leaf chamber. During measurement, the leaf chamber temperature was set at 27 °C, relative humidity 64%, and the reference CO2 was also adjusted at 400 μmol mol−1. All measurements were taken around 10:00 AM to 2:00 PM under maximum light availability. Water use efficiency (WUE) was calculated as a ratio of net CO2 assimilation rate and transpiration rate (Rasheed et al. 2015).
Evaluation of Spinacia oleracea (L.) for phytodesalination and augmented production of bioactive metabolite, 20-hydroxyecdysone
Published in International Journal of Phytoremediation, 2018
N. S. Muchate, N. S. Rajurkar, P. Suprasanna, T. D. Nikam
Treated and nontreated plants were examined for the net photosynthesis rate (PN), transpiration (E), stomatal conductance (gs), water use efficiency (WUE) and the net photosynthesis (PN) vs. internal leaf CO2 concentration (PN/Ci curves). All measurements were done on the 4th leaf counting from the base using a portable photosynthesis system (LI-6400/LI-6400XT). Gas exchange was measured at 800 μmol m−2s−1 PAR, 5.4 kPa vapor pressure deficit, and 25°C block temperature. Water use efficiency (WUE) was calculated by the formula: WUE = PN/E as mentioned by Rabhi et al. (2012).