TY - BOOK AU - Joseph M.[a] AU - George E.S. AU - Karthikakuttyamma M. AU - Mathew M. AU - Punnoose K.I. AU - Syamala V.K. TI - Distribution of total and different fractions of nitrogen in rubber growing soils under different age and fertilizer management practices PY - 1993/// PB - Placrosym X, 1992, Kasaragod, India. Journal of Plantation Crops, 21(Supplement): 92-97. KW - Fertilizer application KW - Nitrogen KW - Rubber growing soil ER -