EFEKTIVITAS PEMUPUKAN TERHADAP PERTUMBUHAN TERUBUSAN KILEMO (Litsea cubeba L. Persoon) YANG DIPANGKAS

Abstract

Kilemo is one of aromatic oil producer plants. The demand of that commodity supplied is still from natural forest by cutting kilemo trees to collect its bark. In consequence, population of kilemo leads to extinct, hence cultivation is crutial to conserve this species. Optimizing coppice productivity can be done by pruning and fertilizing. This study aimed to observe the effectiveness of fertilizer trials on coppice productivity of pruned kilemo. Manufactured granulated organic fertilizer produced, NPK (15:15:15), leaf fertilizer contained micronutrients, were applied into kilemo rhizosphere a month after pruning. Treatments were arranged in completely randomized design with 15 trees for its units in 3 replications. Numbers, length and biomass estimation, of new coppices were calculated for the duration of 15, 30, 60, 90 and 120 days after pruning. Result showed that organic ferlizer was the most effective in increasing soil N,P,K availability and improving coppice number, length and biomass of kilemo by 116%, 99% and 475%, respectively.