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All Journal Journal of Degraded and Mining Lands Management Jurnal Penelitian Pendidikan IPA (JPPIPA)
Nuraida, Wa Ode
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology Physics

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Soil quality and yield attributes of soybean on an Ultisol conditioned using cogongrass biochar enriched with nitrogen fertilizer dissolved in seaweed extract Kilowasid, Muhammad Harjoni; Cahyani, Imas Nur; Febrianti; Aldi, Muhammad; Rahni, Nini Mila; Alam, Syamsu; Suaib; Wijayanto, Teguh; Hasid, Rachmawati; Boer, Dirvamena; Madiki, Abdul; Hadini, Hamirul; Arief, Norma; Muhidin; Nurmas, Andi; Arma, Makmur Jaya; Nuraida, Wa Ode
Journal of Degraded and Mining Lands Management Vol. 12 No. 2 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.122.7353

Abstract

The soil quality of Ultisol, which is indicated by its chemical properties, arbuscular mycorrhizal fungi (AMF), and root nodules, is important for soybean growth. Cogongrass biochar enriched with N fertilizer solution using solvent from seaweed extract can change the soil quality. Using various seaweed extract solvents, this study sought to (i) test the impact of cogongrass biochar enriched with N fertilizer solution on the soil chemical quality and (ii) examine the effects of soil chemical changes on AMF, root nodules, tissue nutrient content, and soybean yield. The treatments consisted of (i) without biochar (B0), (ii) cogongrass biochar without enrichment (BN0), (iii) cogongrass biochar enriched with urea solution using solvent from extract of Kappapychus alvarezii (BNK), (iv) cogongrass biochar enriched with urea solution using solvent from extract of Sargassum sp. (BNS), and (v) cogongrass biochar enriched with urea solution using solvent extract of Ulva lactuca (BNU). In a randomized block design, each treatment was carried out three times. With or without fertilization, cogongrass biochar improves the chemical fertility of the soil. The increase in NH4+-N and nitrate-N content of the soil in enriched cogongrass biochar was greater than in unenriched. The AMF spores density and root nodules were reduced following enrichment. When biochar was added, there were more pods, pod dry weight, total seeds, and regular seeds per plant. In conclusion, the impact of increasing soil ammonium content led to decreased density of AMF spores, root infections, and root nodules. The level of available P greatly affected the components of soybean yield in Ultisol.
Penampilan Karakter Kuantitatif dan Korelasi Karakter-karakter pada Galur Tanaman Jagung Hasil Selfing pada Kondisi Lahan Kering Suliartini, Ni Wayan Sri; Sutresna, I Wayan; Sudika, I Wayan; Nufus, Novita Hidayatun; Nuraida, Wa Ode
Jurnal Penelitian Pendidikan IPA Vol 12 No 2 (2026): In Progress
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i2.12862

Abstract

This study investigates the quantitative characteristics of several generations of self-pollinated lines and the F2 population, as well as the correlation between these characteristics and leaf angle, harvest age, and yield in corn plants. The experiment was carried out in Gumantar village, North Lombok, from May to September 2024, and was designed using a Complete Randomized Block Design with treatments including the F2 population, 15 S1 lines, 15 S2 lines, 15 S3 lines, and 15 S4 lines. The study examined 14 quantitative characteristics. The experimental data were analyzed using analysis of variance. Further testing was conducted using the DMRT test at a 5% level. Correlations between traits were calculated using the Pearson correlation test. The research results demonstrate that the quantitative characteristics of several generations of selfing lines and the F2 population differ, except for ASI and cob diameter. The selfing from the first through fourth generations exhibit lower values compared to the F2 population, with the exceptions of anthesis-tasseling age, silk emergence, and harvest age. Most traits are associated with the medium harvest age category. The yield is correlated with most quantitative characters in the medium to strong category. The selection of plants to be selfed to form the S5 lines and increase yields should use plant height as a selection criterion.
Co-Authors Abda Abda Abdul Madiki ANDI NURMAS, ANDI Arief, Norma Cahyani, Imas Nur DIRVAMENA BOER, DIRVAMENA Febrianti I Wayan Sudika I Wayan Sutresna Kilowasid, Muhammad Harjoni Makmur Jaya Arma Muhammad Aldi, Muhammad Muhidin Muhidin Nini Mila Rahni Novita Hidayatun Nufus Rachmawati Hasid Suaib Suliartini, Ni Wayan Sri SYAMSU ALAM Teguh Wijayanto