Effect of Nano-NPK fertilizer and humic acid on vegetative growth and chemical properties of the vegetative parts of broccoli (Brassica oleracea var. Italica) in gypsiferous soil. EJAS [Internet]. 2026 Jun. 30 [cited 2026 Nov. 9];18(2). Available from: https://ejs-agri.com/index.php/EJAS/article/view/660