PEMBERIAN LIQUID ORGANIC FERTILIZER (LOF) TERHADAP PERTUMBUHAN SENGON (Paraserianthes falcataria (L) Nielsen) (Influence of Liquid Organic Fertilizer (LOF) on Sengon (Paraserianthes falcataria (L) Nielsen) Growth)

Yudha1 , Sosilawaty1 dan M. Nababan 2

Abstrak

ABSTRACT
In agriculture, the use of waste and garbage organics and seasonings are often used to
make liquid organic fertilizer (LOF), but the making and the using of this LOF in the
forestry is still very rare. The objectives of this study were to determine the influence of
liquid organic fertilizer (LOF) on Sengon growth and to find out the best LOF dose for
Sengon growth. The raw materials of LOF in this study were black sugarcane water, old
coconut water, rice washing water, Sasa seasoning, fruits peel, Kepok banana hump,
Petung bamboo shoots, and shrimp paste. This study used a Completely Randomized
Design (CRD) with a total experimental unit of 200 Sengon seedlings divided into 5
treatments and each treatment consisted of 40 replications. The five treatments were P1
(Control, 0 ml LOF), P2 (10 ml LOF + 2 liters of water), P3 (20 ml LOF + 2 liters of
water), P4 (30 ml LOF + 2 liters of water), and P5 (LOF 40 ml + 2 liters of water). The
results showed that the influence of liquid organic fertilizer (LOF) had a very significant
effect on each dose treatment on the growth parameters of Sengon seedlings, which
included parameters of increase in height, number of leaves and increase in diameter.
The treatment of the P5 dose (40 ml + 2 liters of LOF) gave the best influence on the
growth of Sengon seedlings.
Keywords: Liquid organic fertilizer (LOF), sengon