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All Journal Journal of Degraded and Mining Lands Management Planta Tropika EnviroScienteae
Ningsih, Rina Dirgahayu
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science

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IDENTIFIKASI POTENSI VARIETAS CABAI RAWIT TIUNG TANJUNG SEBAGAI VARIETAS UNGGUL NASIONAL Nazari, Yudhi Ahmad; A., Zainul; Rahmawati, Yuyun; Subandana, Subandana; Marjuni, Marjuni; H., Eprima; Noor, Aidi; Ningsih, Rina Dirgahayu
EnviroScienteae Vol 19, No 3 (2023): ENVIROSCIENTEAE VOLUME 19 NOMOR 3, AGUSTUS 2023
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/es.v19i3.17275

Abstract

Diversity and Allelopathic Potential of Weeds in Swampland Sujinah, Sujinah; Margaret, Swisci; Agustiani, Nurwulan; Ningsih, Rina Dirgahayu; Rumanti, Indrastuti Apri
PLANTA TROPIKA Vol 11, No 2 (2023)
Publisher : Department of Agrotechnology, Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.v11i2.16491

Abstract

Weeds are plant disturbing organism that affect yields through competition and allelopathy. However,  not much is known about weed diversity in swamps, so research is needed to identify their types and compounds as a weed control strategy. This study was conducted using a survey method from January to March 2020 at the Barito Kuala District, South Kalimantan. Thirty villages were randomly selected from each of the eight chosen subdistricts. Out of the twenty-six weed species identified, there were ten species of grasses, seven sedges, and nine broadleaves. The results showed that the weed species were dominated by Cyperus halpan, Eleocharis dulcis, and Cynodon dactylon (L.), with an SDR of 23.46, 16.73, and 10.03, respectively. The analysis of GC-MS showed that the weeds contained four similar compounds: neophyte diene, palmitic acid, linoleic acid, and stigmasterol. The largest compound content in C. halpan was diisocotyl phthalate (48.49%), while in E. dulcis and C. dactylon the largest were o-phthalic acid and mono-2-ethylhexyl-ester (69.36 and 40.23%). Moreover, weed allelochemicals are classified into fatty acids, steroids, esters, and other volatile compounds, where some have the potential for allelopathy that inhibits crop growth. 
Integrated rice husk biochar and compost to improve acid sulfate soil properties and corn growth Maharani, Puspita Harum; Maftu'ah, Eni; Sulaeman, Yiyi; Napisah, Khairatun; Masganti, Masganti; Mukhlis, Mukhlis; Anwar, Khairil; Ningsih, Rina Dirgahayu; Chairuman, Novia
Journal of Degraded and Mining Lands Management Vol. 12 No. 4 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.124.8097

Abstract

Acid sulfate soils are of poor quality and characterized by extreme acidity, nutrient deficiency, and high Al and Fe toxicity. Developing soil amendments from local resources is crucial to reduce input costs. This study investigated the effect of the integrated soil amendments (biochar, compost, and lime) on corn growth and the acid sulfate soil quality. Using randomized block design, this study tested nine type soil amendments, namely A (100% rice husk ash), B (100% rice husk biochar), C (100% compost), D (100% dolomite), H (100% humate), ACD (30% rice husk ash + 30% compost + 40% dolomite), BCD (30% rice husk biochar + 30% compost + 40% dolomite), AHD (30% rice husk ash + 30% humate + 40% dolomite), BHD (30% rice husk biochar+30% humate+40% dolomite), and control (no amendment). The application of soil amendments significantly increased soil pH (31%), available P (310%), reduced exchangeable Al (19%), and increased corn growth (163%). The BCD amendment type increased available phosphorus from 10 to 43 mg kg-1, reduced exchangeable Al from 3.45 to 2.01 cmol(+) kg-1, and enhanced corn growth and leaves' P level. Integrating rice husk biochar and compost could reduce the need for agricultural lime, improve acid sulfate soil quality, and enhance land productivity. This combination has the potential to be an effective soil amendment for degraded acid sulfate soils, thereby further boosting land productivity and promoting agricultural sustainability.
Co-Authors A., Zainul Agustiani, Nurwulan Aidi Noor H., Eprima Indrastuti Apri Rumanti Khairil Anwar Maftu'ah, Eni Maharani, Puspita Harum Margaret, Swisci Marjuni Marjuni Masganti Masganti Mukhlis Mukhlis Napisah, Khairatun Novia Chairuman Rahmawati, Yuyun Subandana, Subandana Sujinah Sujinah Yiyi Sulaeman Yudhi Ahmad Nazari