Vol. 12, Issue 1 (2023)

Author(s):
Anita and PS Kashyap

Abstract:
The process of scheduling irrigation aims to figure out the right amount and timing of water application to accomplish desired crop production and quality, optimize water conservation and limit any potential adverse effects on the environment, like nutrient leaching below the crop root zone. The study was carried out at the experimental site of Vegetable Research Centre of G.B. Pant University of Agriculture & Technology, Pantnagar, Uttarakhand, India. Soil moisture content was estimated using gravimetric method periodically in 0-15, 15-30, 30-45 and 45-60 cm soil profiles. Field experiments were conducted on cabbage crop (Green Coronet) during 2020-2021 and 2021-2022. Five irrigation treatments were maintained based on the maximum allowable depletion (MAD) of available soil water. Field experiments showed that irrigation schedule with 45% maximum allowable depletion of available soil water gives the maximum water use efficiency for cabbage crop. It was found that for scheduling of irrigation for cabbage crop 0-30 cm soil profile should be considered as most of the water was found to be extracted from this layer by the plant.