The effect of land management and organic matter inputs on bacterial population and soil nutrients across different types of agroforestry system

Abstract. Rinady MVP, Nuraini Y, Prayogo C, Arfarita N. 2023. The effect of land management and organic matter inputs on bacterial population soil nutrients across different types agroforestry system. Biodiversitas 24: 1333-1345. Different systems changes crop composition growth. This will affect that become the source food energy for microorganisms. organisms themself play an important role in amplifying biogeochemical processes regulating reactions. process allows to be released into absorbed by crop. study aimed examine abundance chemical properties (soil pH, total carbon (C), N (Nitrogen) under inputs. determination C was used Walkey Black Kjedahl methods. Total Plate Count (TPC) techniques were employed measure Bacteria Population (TBP) Cellulolytic (TCB). Randomized Complete Block Design along with 5% Tukey's test significant treatments. These treatments consisted various system as follow: (i) pine-coffee (PK), (ii) pine-banana (PPs), (iii) pine-cardamom (PR), (iv) pine-vegetable (PS), (v) mixed garden (KC), (vi) citrus (LJ). Each treatment repeated four times obtain 24 experimental plots using a size 20 m x m. results showed highest content obtained at PK (agroforestry pine 41 years coffee 11 old) plot, which about 6.64% 0.56%. Those parameters strongly correspond greatest bacteria cellulolytic value 1,71 105 CFU/g 4,24 104 CFU/g, resulting from quantity in-situ litter accumulation plot reach 201.35 g. dry weight situ is greater than PS LJ 81% 87%. A power equation followed relationship between population. similar trend has been observed Nitrogen We concluded could conditions bacteria.