PRELIMINARY STUDY ON FERTILIZATION FOR ACACIA MEARNSII

Fertilization results for four years indicate that single fertilization for three fertilizer elements, N, P, K, and their combining fertilization significantly effect on height, diameter, volume and bark production, tannin yield and thickness of bark, and economic benefit compared to control experiments. Different combinations among the three elements show significant differences. Phosphorous fertilizer is of first importance to increase the production for A. mearnsii. This paper mainly describes and reviews basical information for trial sites, methods and results.