TRIPATHI, A.K.; TRIPATHI, H.N.; KUMAR, Munish. . Soil Fertility and Crop Productivity as Influenced by Different Cropping Systems and Levels of Nitrogen in Central Plain Zone of Uttar Pradesh . Journal of Soil and Water Conservation, India, v. 3, n. 3 & 4, 2022. Disponível em: https://epubs.icar.org.in/index.php/JSWC/article/view/130992. Acesso em: 3 jul. 2026.