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All Journal AGRIVITA, Journal of Agricultural Science Caraka Tani: Journal of Sustainable Agriculture
Azzahra, Nadine Yuki
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Agriculture, Biological Sciences & Forestry

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Evaluation of Arbuscular Mycorrhizal Cultures in Increasing Phosphorus Uptake and Maize Growth Compared to Chemical and Organic Fertilizers on an Andisol Cahyani, Vita Ratri; Azzahra, Nadine Yuki; Rosariastuti, Retno
AGRIVITA Journal of Agricultural Science Vol 46, No 3 (2024)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v46i3.3867

Abstract

There is still limited information about the formulation of arbuscular mycorrhizal (AM) fungi culture with the specific ability to overcome P retention in Andisols. The purpose of this study is to evaluate the functional ability of eight AM fungi cultures consisting of four cultures from the generation I (A1I31, A2I21, A0I31, and A0I21) and four cultures from generation II (A1I32, A2I22, A0I32, and A0I22) in dealing with P constraints on an Andisol, compared with the application of fresh AM fungi inocula isolated from natural soils, synthetic chemical fertilizers (CF), rice straw (RS) compost, and several combination treatments including Bio-RP Nutrition. The highest functional ability in increasing P uptake and maize growth on Andisol is obtained by A1I32, followed by A2I22 and A0I22, indicating that AM fungi cultures generation II exhibited higher effectiveness than generation I. The increase of P uptake and maize shoot dry weight yielded by those three AM fungi cultures were in the range of 80-97% and 89-103% of T14 (CF 100%), indicating the high potential biofertilizers for reducing the use of chemical fertilizers. By  cultivation  plate  method,  the  present  findings  also  confirmed that  AM   fungi   inoculation   affecting  significantly   the   abundance and  the  composition  of  foliar  endophytic  bacterial  communities.
Composting of Rice Straw–Based Materials using Aerobic Bioactivator Isolated from Rice Straw, Mahogany Bark and Cassava Peels Cahyani, Vita Ratri; Rahayu, Rahayu; Lakshitarsari, Kynthavi Paramitha; Megow, Rahma Amira Zhalzhabila Wakak; Azzahra, Nadine Yuki
Caraka Tani: Journal of Sustainable Agriculture Vol 39, No 1 (2024): April
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v39i1.74297

Abstract

Compost is one of organic fertilizers that play an important role in maintaining soil health and supporting sustainable agriculture. Diverse aspects could be developed to increase the quality of compost. This study aims to compare the quality of compost produced by using two different bioactivators, namely aerobic bioactivator RMC (the microbial consortia isolated from composted rice straw, mahogany bark and cassava peels + additional supplement) and fermentative bioactivator (EM4 + molasses) in the composting of the mainly rice straw-based materials. Composting was conducted using a single factor completely randomized design consisting of five levels as follows: C0 (control, rice straw); C1 (rice straw + bioactivator EM4 + molasses); C2 (rice straw + bioactivator RMC + additional supplement); C3 (rice straw + cow dung + bioactivator RMC + additional supplement); C4 (leaf litter + cow dung + bioactivator RMC + additional supplement, as comparison treatment with no rice straw). Among the treatments of C0, C1 and C2, composting the same rice straw material but different bioactivators, C2 showed the highest compost quality and decomposition rate. Among the other three treatments of C2, C3 and C4 composting different materials but using the same bioactivator, C3 showed the highest compost quality, but the three treatments showed the same high decomposition rate. Based on the characteristics of the compost product, including nutrient content, the treatment C3 produced the highest quality, followed by C4 and then C2. Both bioactivators EM4 + molasses and RMC+ additional supplement tended to increase total bacteria, fungi, nitrogen-fixing bacteria and phosphate-solubilizing microbiota in the compost products compared to the control without bioactivator. A set of aerobic bioactivator RMC plus additional supplement serve as one strategy to accelerate the composting process and to enhance the compost quality.
Co-Authors Lakshitarsari, Kynthavi Paramitha Megow, Rahma Amira Zhalzhabila Wakak Rahayu Rahayu Retno Rosariastuti Vita Ratri Cahyani