Structure and Composition of Major Arbuscular Mycorrhiza (MA) under Different Farmer Management of Coffee and Pine Agroforestry System

Abstract

Utilization of Arbuscular Mycorrhiza (MA) as beneficial soil microbes is expected to support nutrient demand for improving crop performance. However, under the agroforestry system that facing a problem on light, water, and nutrients competitions, the role of MA is becoming unclear. The purpose of this research was to examine how far different management in Coffee Pines Agroforestry System (CPAS) affects MA structure and compositions. The relationship between soil parameters (e.g. pH, soil organic C) and MA activities was also being evaluated. The selected plot according to existing management practices were chosen as follows: (1) Low management (LC); (2) High management which then compared to (3) Business As Usual (BAU) plot in which were repeated in triplicate. ANOVA and multivariate analysis were employed to determine the effect of the treatments. The result showed that there were significant differences (p<0.05) in the structure and composition of the MA, in terms of the total number of MA spores and the abundance of Glomus sp. under the coffee tree sampling point, while the lowest number was detected in Gigaspora sp. genera. The more intensive land management resulted in a higher abundance of MA biomass which then leads to increased soil P and uptake-P along with MA infection.

Models of Pb distribution and uptake in inundated paddy and maize cropping systems

“…Regression and correlation analysis with total Pb as Y and distance as X were carried out to predict Pb levels in soil, water, and crops if the distance from the pollution source was known. Regression analysis was carried out to get the equation of the relationship between the total Pb with pollutant distance, as these approaches have been used in many studies (Aditya et al, 2020;Prayogo et al, 2020). Correlation analysis was performed to measure the degree of closeness of a relationship that occurs between variables, expressed by the value of the correlation coefficient.…”

The impact of different management on pine-based agroforestry system and litter accumulation on the population and activity of cellulolytic bacteria

“…Litter production is influenced by stand density, understorey density, tree age, and the quality of the tree-growing area. Fallen litter contains soil nutrients that plants cannot directly use (Prayogo et al 2021a;Prayogo and Arfarita 2022). Therefore, the litter must first be decomposed by soil microbes (bacteria), which greatly affect the availability of nutrients, and these nutrients can create fertile soil conditions (Sudomo and Widiyanto 2017;Rinady et al 2023).…”

“…It is a layer bridging the soil and the atmosphere and providing a barrier against external factors. The litter biochemical decomposition process can be impeded and increasing soil carbon content, which serves as the primary food chain of microbes (Prayogo et al 2021a;Prayogo and Arfarita 2022;Azizah et al 2023).…”