Sharma, Jagdev, and A.K. Upadhyay. “A Novel Technique to Apply Irrigation Water at Sub-Surface from Existing Surface Drip Irrigation System in Grapevine: Effect on Yield, Nutrient Contact and Water Use Efficiency”. Indian Journal of Horticulture 68, no. 03 (September 27, 2011): 312–317. Accessed March 13, 2025. https://journal.iahs.org.in/index.php/ijh/article/view/1908.