EFFECT OF SHADING AND MIXTURE OF POTTING MEDIUM FOR THE DABERGIA TONKINESIS (DABEGIA TONKINENSIS PRAIN) IN THE NUSERY STAGE

Abstract

The study inorder to determine the appropriate light – shading regime and the formula of potting mix ingredients suitable for the Sua in the nursery period. Lighting experiment (experiment 1) consists of formulas: CT1 (shading 75%), CT2 (shading 50%), CT3 (shading 25%), CT4 (no light shading). The experiment identified the potting mix component (experiment 2) consisting of four fourmulas: CT1 (without feces); CT2 (98% soil + 2% NPK); CT3 (88% soil + 2% NPK + 10% microbial fertilizer); CT4 (78% soil + 2% NPK + 20% microbial fertilizer). The results of the study showed that the formula two (shading 25%) and the third formula (88% soil + 2% NPK + 10% microbial fertilizer) for the high growth rate of Sua trees, grow well in the period nursery and high rate of outgardening.