K. N. AKBARI, G. R. MARUTHI SANKAR, V. D. VORA, G. S. SUTARIA, M. K. KHISTARIA, and D. R. PADMANI, “Optimum fertilizer in relation to seasonal rainfall in pearl millet and groundnut crops in semi-arid vertisol of Rajkot (Gujarat, India) region”, J. Agrometeorol., vol. 11, no. 1, pp. 67–72, Jun. 2009.