Paranal, Ernesto B.
Growth and yield response of two pechay cultivars to level of ammonium sulfate / - 1999. - vi, 68 pages ; 28 cm.
AGRI 0030 / 1999 c.1
Growth and yield response of two pechay cultivars to level of ammonium sulfate / - 1999. - vi, 68 pages ; 28 cm.
AGRI 0030 / 1999 c.1