PENGARUH KOMPOSISI BIOFERTILIZER CAIR TERHADAP PERTUMBUHAN TANAMAN KEDELAI DI LAHAN GAMBUT (The Effect of Liquid Biofertilizer Composition on Soybean Plant Growth in Peat Land)

Neneng, L.1*), Jagau, Y 2), Gunawan, Y.E.1)

Abstract

ABSTRAC
This study aims to find the most potent combination of local microorganisms as a liquid
biofertilizer on marginal land, such as peatland. The study used Completely Randomized Design on
peat soil media in polybags, with 8 (eight) treatments and 4 (four) replicates, namely liquid
biofertilizer composition comprising a group of local microorganisms: 1) KHY, 2) IBT, 3) KHY +
IBT, 4) KHY + IGT, 5) IBT + IGT, 6) KHY + IBT + IGT, 7) EM4 (Control +), 8) Aquadest
(Controls -). The variables observed were plant height, number of leaves, number of branches,
number of flowers of soybean crop. The results showed that the composition of the liquid
biofertilizer EM4 gave the best results on the parameters of plant height, the number of leaves, the
number of branches, and the amount of flowers on soybean plants tested in peat soil media. The
combined composition of local microorganisms KHY + IBT + IGT containing bacterial populations
of phosphate solvent, nitrogen-fixing bacteria, and cellulitic fungi, are still in the same group as
EM4 in the treatment of the number of leaves and the number of plant flowers, therefore the
composition of these potential local microorganisms is developed to become a liquid biofertilizer
Keywords: Liquid Biofertilizer, Soybean Growth, Peat Land