Komposisi Unsur Hara Kompos yang Dibuat dengan Bantuan Agen Dekomposer Limbah Bioetanol pada Level yang Berbeda

Abstract

<em>The objective of research was to evaluate the effect of different level of decomposers from bioethanol waste as a bioactivator to compost nutrient content. The materials used in this study were feces collected from six 3 to 5 years old of male Fresian Holstein (PFH), and decomposer agents from processed-bioethanol waste. The experimental design used was completely randomized design with four treatments and six replications, i.e. P1: 0.4% of decomposer, P2: 0.5% of decomposer, P3: 0.6% of decomposer, P4: 0.7 of decomposer %. Analysis of nutrient contents of compost was conducted at the the Laboratory of Chemistry and Soil Fertility, Department of Soil Science, Faculty of Agriculture, Gajah Mada University, Yogyakarta. Data analysis was performed using Minitab 17 software. The results of the analysis of variance showed that different levels of decomposer affected organic C, phosphor (P), Kalium (K), and Magnesium (Mg). </em><em>Organic C, P, K, and Mg contents were found highest in P2, on the other hand N and Ca contents, C/N ratio, pH, and temperature of compost were not different among treatments. It could be concluded that compost made with 0.5% decomposer agents from processed-bioethanol waste was the best.</em>

Variations of Time for Composting Market Organic Waste Using Aerobic Microorganisms

“…Research with radioactive elements shows that only the nutrient Hydrogen from water is used by plants, while oxygen in the water is released as a gas (R. A. Bachtiar et al, 2018;Purba et al, 2020)).…”

“…If ammonia gas does not immediately undergo ammonification, it will immediately volatilize (evaporate) into the air, as well as atmospheric N2 gas. Nitrogen is absorbed by plants in the form of NO3or NH4 + from the soil (Bachtiar et al, 2018;Mehta, 2018).…”

“…Phosphorus content (P2O5) in all composting phases has a high enough value and is above the minimum SNI standard of 0.10%, nitrogen and phosphorus are needed by microbes for microbial metabolism and growth (Bachtiar et al, 2018). The high phosphorus content of compost is thought to be due to the high phosphorus content of the compost base material so that the phosphorus content in the compost is quite high even though the P element has been used by microbes in its activity.…”

Utilization Of Organic Fertilizer Compost Made From Purple Sweet Potato Waste (Ipomoea Batatas L.) To Increase The Production Of Pakchoy (Brassica Chinensis L.)

“…The composting hole is tightly closed using plastic and Asbestos so that it is not exposed to rain. Compost is turned over every 7 days [8]. The composting process lasts for 30 days.…”

Degradation Level and Wetland Rice Rehabilitation Effort in Medan Krio Village Sunggal District Deli Serdang

“…The best effect of organic waste composting on C/N was B3 (4.5%) treatment, but it was not significantly different from B4 (6%). The provision of organic material that is mature enough at the time of planting or a week after planting can provide the right conditions [9].…”