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All Journal Journal of Degraded and Mining Lands Management Jurnal Pertanian Terpadu Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering)
Rupa Matheus, Rupa
Politeknik Pertanian Negeri Kupang
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Engineering

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Using soil amendments and mycorrhiza to improve chemical properties of degraded calcareous soil and yield of sorghum in dryland Matheus, Rupa; Kantur, Donatus; Levis, Leta Rafael
Journal of Degraded and Mining Lands Management Vol. 11 No. 3 (2024)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2024.113.5673

Abstract

Optimized use of calcareous soil in dryland areas needs to begin with rehabilitation efforts using soil amendments, including organic fertilizer and biochar. This study sought to determine whether kinds of soil amendments and mycorrhizal biofertilizers may enhance the chemical quality of calcareous soils and increase the yield of sorghum on dry land. The study was conducted at the experimental garden of the Agricultural Extension Center located in Oelnasi Village from April to August of 2023. Two criteria included in the study were the kind of soil amendment and mycorrhizal biological fertilizer, both of which were arranged in a randomized block design. The parameters observed were soil chemical properties, plant N and P nutrient uptake, and sorghum yield. The research results showed that the application of three types of soil amendments (P1 = cow dung, P2 = rice straw compost, and P3 = corncob biochar) improved the chemical quality of calcareous soil. This application of corncob biochar could significantly reduce soil pH from 7.85 (slightly alkaline) to 7.19 (neutral) and increase soil organic C to 2.55% C, followed by treatment with cow dung and rice straw compost. Other soil chemical properties, i.e., N, P, K, and soil CEC, also improved, which differed from the control treatment. The mycorrhizal biofertilizer provided could also improve the chemical properties of calcareous soil. Providing mycorrhizal biofertilizer could increase the N and P nutrient uptake of sorghum plants by 3.79% dry weight-1 and 2.18% dry weight-1, respectively, as well as increased sorghum yields, respectively by 4.04 t ha-1, 3.97 t ha-1 and 3.87 t ha-1 dry beans, higher than the control which only achieved 2.32 t ha-1 dry beans.
Pemanfaatan Pupuk Organik Cair Biourin yang Diperkaya Mikroba Indigenous terhadap Tanah dan Hasil Bawang Merah di Lahan Kering Matheus, Rupa; Djaelani, Abdul Kadir
Jurnal Pertanian Terpadu Vol 9 No 2 (2021): Jurnal Pertanian Terpadu Jilid IX Nomor 2 Desember 2021
Publisher : Sekolah Tinggi Pertanian Kutai Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36084/jpt..v9i2.344

Abstract

Biourin merupakan salah satu jenis pupuk organik cair yang kaya mikroba fungsional. Pemanfaatannya dapat meningkatkan produktivitas tanah dan tanaman di lahan kering. Penelitian ini bertujuan untuk mengetahui efektifas dari jenis pupuk organic cair biourin yang diperkaya mikroba dan cara aplikasi terhadap sifat tanah dan hasil bawang merah di lahan kering. Penelitian dilaksanakan di lahan kering di Desa Noelbaki, Kecamatan Kupang Tengah, Kabupaten Kupang, NTT pada musim kemarau dari bulan April sampai Juli 2021. Percobaan menggunakan Rancangan Petak Terpisah (RPT) dengan dua faktor dan tiga ulangan. Petak utama adalah metode aplikasi biourin (C) yaitu: C1: melalui daun dan C2: melalui akar (penyiraman). Anak petak adalah Jenis biourin yang diperkaya mikroba indigenous dari berbagai sumber (B), yaitu: B0: Biourin (tanpa diperkaya mikroba); B1: Biourin yang diperkaya mikroba dari Kompos Sabut Kelapa; B2: Biourin yang diperkaya mikroba dari Kompos Daun Gamal; B3: Biourin yang diperkaya mikroba Kompos Jerami Jagung. Varietas bawang merah yang digunakan ialah varietas Local Sabu. Hasil penelitian menunjukkan bahwa jenis biourin yang diperkaya mikroba dari kompos daun gamal, kompos berangkasan jagung dan kompos sabut kelapa memberikan efek positif terhadap perbaikan sifat tanah dan hasil bawang merah, yaitu terjadi peningkatan hasil sebesar 53,52% dari perlakuan biourin yang tidak diperkaya mikroba. Cara aplikasi melalui akar memperlihatkan efek yang lebih baik terhadap sifat tanah dan hasil bawang merah dibanding dengan metode aplikasi melalui daun.
Effectiveness of Organic Fertilizer Enriched with Humic Acid on Soil Chemical Quality, Nutrient Uptake, and Shallot Yield in Calcareous Soils Matheus, Rupa; Kantur, Donatus
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 1 (2025): February 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i1.309-318

Abstract

Calcareous soils have great potential for the development of food crops and horticulture, but they are constrained by high pH, low organic matter content, and less than optimal cation exchange capacity, thus affecting the availability of nutrients. This study aims to evaluate the effectiveness of organic fertilizer enriched with humic acid on soil chemical quality, nutrient uptake, and yield of shallots on calcareous soils. The study was designed with two factors, namely type of organic fertilizer (manure and bokashi) and concentration of humic acid (0%, 10%, and 20%) added to the organic fertilizer. The results of the study showed that the application of organic fertilizers, both manure and bokasih, had a similar effect on soil quality and shallot yields. However, the addition of humic acid at a concentration of 20% significantly improved the chemical properties of the soil, nutrient uptake (especially nitrogen and potassium), as well as the yield component of shallots when compared to the concentration of 10% and control. The addition of humic acid has been proven to be effective in improving nutrient availability and supporting plant growth. This innovation can be an effective solution to improve the quality of calcareous soils and agricultural products, especially shallots, which supports sustainable and environmentally friendly agriculture. Keywords: Calcareous soil, Humic acid, Nutrient uptake, Organic fertilizer, Shallots.
Co-Authors Abdul Kadir Djaelani, Abdul Kadir Donatus Kantur, Donatus Levis, Leta Rafael