Lugo-Mercado, Héctor M.
The Journal of Agriculture of the University of Puerto Rico Vol. 72 No. 1 (1988): Vol. 72, No. 1, January 1988 ArticlesYield response of vegetables to tillage techniques on a Vertisol of the semiarid region of Puerto Rico
The Journal of Agriculture of the University of Puerto Rico Vol. 71 No. 2 (1987): Vol. 71, No. 2, April 1987 ArticlesYield response of watermelon, tomato and pigeon pea to land preparation techniques in southern Puerto Rico