K. MADHAVI, V. SRI RAMYA , A. MADHAVI, P. SURENDHRA BABU and. 2017. “ZINC REQUIREMENT TO RICE IN HIGH P SOIL WITH SUFFICIENT ZINC STATUS”. The Journal of Research, PJTSAU 43 (3). https://epubs.icar.org.in/index.php/TJRP/article/view/67931.