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