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All Journal Agrikultura Journal of Degraded and Mining Lands Management
Mochtar Lutfi Rayes
FAKULTAS PERTANIAN UNIVERSITAS BRAWIJAYA
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Pengaruh Kombinasi Pupuk Organik dan Anorganik terhadap Sifat Fisik dan Kimia Tanah serta Produksi Padi pada Lahan Kering yang Disawahkan Putra, Rizky Eka; Rayes, Mochtar Lutfi; Kurniawan, Syahrul; Ustiatik, Reni
Agrikultura Vol 35, No 1 (2024): April, 2024
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/agrikultura.v35i1.53686

Abstract

Lahan kering yang disawahkan memiliki proses pelumpuran dan penggenangan yang menyebabkan perbedaan kondisi sifat fisik tanah sehingga menurunkan kesuburan tanah, salah satunya yaitu kerusakan struktur tanah. Upaya untuk meningkatkan kesuburan tanah pada lahan tersebut dapat dilakukan dengan meningkatkan C-Organik, salah satunya yaitu aplikasi pupuk organik (asam amino dan asam humat). Aplikasi pupuk organik yang dikombinasikan pupuk anorganik dengan dosis yang tepat juga berpotensi untuk memperoleh produksi tanaman yang optimal. Tujuan penelitian ini yaitu untuk menganalisis perbedaan karakteristik tanah pada lahan kering yang disawahkan serta menganalisis pengaruh pemberian kombinasi pupuk organik dan anorganik terhadap kesuburan tanah dan produksi padi pada lahan kering yang disawahkan. Penelitian dilakukan di Kebun Percobaan Jatimulyo, Universitas Brawijaya. Penelitian ini menggunakan rancangan acak kelompok (RAK) dengan 9 perlakuan dan 3 kali ulangan. Parameter yang diukur yaitu pH, C-Organik, kapasitas tukar kation (KTK), Kdd, kejenuhan basa, berat isi, tekstur, jumlah anakan produktif, dan berat gabah kering panen. Hasil penelitian menunjukkan terdapat perubahan sifat fisik dan kimia tanah akibat perubahan pengolahan dari lahan kering menjadi lahan sawah. Aplikasi pupuk organik dan anorganik memberikan pengaruh nyata terhadap sifat kimia seperti pH, C-Organik, N-total, P-tersedia, Kdd dan KTK. Aplikasi pupuk organik dan anorganik juga meningkatkan produksi padi sebesar 39-59% dengan perlakuan dosis terbaik yaitu 75% pupuk dasar anorganik + 100% pupuk organik.
Analysis of degraded land suitability and regional comparative advantages for maize development in the Gorontalo sustainable agriculture areas, Indonesia Rayes, Mochtar Lutfi; Nurdin, N; Listyarini, Endang; Agustina, Christanti; Rauf, Asda
Journal of Degraded and Mining Lands Management Vol. 11 No. 1 (2023)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2023.111.4909

Abstract

Maize has attracted the attention of local governments due to its high yield potential and economic prospects, but the strategic value of this commodity has not been specific to particular locations. Therefore, this study aimed to assess degraded land suitability and determine the regional comparative advantages for maize development in the Gorontalo sustainable agriculture areas. The suitability class was assessed using Automatic Land Evaluation System software, while comparative advantages were determined using input-output and regional analysis. The input-output analysis was based on maize farming data from interviews with 80 farmers. This study also employed location quotient, specialization index, and localization index analyses based on maize, rice, and soybean production data for 2014, 2016, and 2018. The results showed that land degradation caused by soil erosion was dominated by moderate, heavy, and very heavy categories. Most of the actual land suitability for maize was classified as marginal suitable (S3) but became very suitable (S1) and moderately suitable (S2) after the limiting factors were improved. Furthermore, maize was profitable for the land suitability classes of S1, S2, and S3, and the commodity was most concentrated in Mootilango District. Based on the results, land management recommendations followed a pattern of recommendation I > II > III > not recommended.
Co-Authors Aditya, Haidar Fari Asda Rauf Christanti Agustina Endang Listyarini Karam, Daljit Singh Nurdin, N Rizky Eka Putra, Rizky Eka Seca Gandaseca Syahrul Kurniawan Ustiatik, Reni