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All Journal Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences AGRIKA Jurnal Produksi Tanaman Journal of Degraded and Mining Lands Management Plantropica: Journal of Agricultural Science JURNAL AGRILAND Planta Simbiosa : Jurnal Tanaman Pangan dan Hortikultura JAPI: Jurnal Akses Pengabdian Indonesia
Saitama, Akbar
University of Brawjiaya
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Economics, Econometrics & Finance Environmental Science Health Professions Immunology & microbiology Nursing Public Health Other

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Analisa Perubahan Iklim dan Pengaruhnya pada Produktivitas Tanaman Padi di Kabupaten Malang Akbar Hidayatullah Zaini; Akbar Saitama
Plantropica: Journal of Agricultural Science Vol. 8 No. 2 (2023)
Publisher : Department of Agronomy, Faculty of Agriculture, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpt.2023.008.2.08

Abstract

Indonesia merupakan negara tropis yang memiliki suhu rata - rata sebesar 27-30oC, suhu yang sangat sesuai untuk di budidayakan berbagi jenis komoditas pertanian. selanjutnya, kondisi itu telah berubah disebabkan adanya perubahan iklim yang mempengaruhi pergeseran musim dan perubahan pola distribusi curah hujan yang memiliki pengaruh secara langsung terhadap produksi tanaman pangan terutama padi. Dampak yang terlihat akibat dari perubahan iklim pada sektor tanaman padi adalah menurunnya hasil produksi tanaman padi karena perubahan iklim yang tidak sesuai dengan syarat tumbuh tanaman padi. Metode penelitian yang dilakukan adalah dengan cara penelitian survei. Pengambilan sampel dilakukan dengan melakukan pengamatan di Kabupaten Malang untuk mendapatkan data primer dan data sekunder. Pemilihan dua lokasi tersebut dikarenakan Kecamatan Wajak dan Gondanglegi merupakan sentra produksi padi di Kabupaten Malang yang dapat dikatakan mempengaruhi sebagian besar produksi padi di Kabupaten Malang. Dari hasil perhitungan tipe iklim, iklim di Kabupaten Malang dalam 2 dekade tidak terlihat adanya perubahan iklim yang signifikan yang mempengaruhi produktivitas tanaman padi. Kabupaten Malang memiliki tipe iklim C3 yang berarti hanya dapat ditanam padi 1 kali dalam kurun waktu setahun dan selanjutnya ditanami oleh tanaman palawija. Pada uji korelasi unsur-unsur iklim, curah hujan dan hari hujan memiliki keeratan hubungan dengan produktivitas tanaman padi di Kabupaten Malang. Selanjutnya berdasarkan hasil regresi linier berganda unsur iklim curah hujan dan hari hujan menentukan produktivitas tanaman padi di Kabupaten Malang.
Acceleration of Organic Compost Supply Using Microbial Consortium Formulation on Various Organic Wastes and their Effect on Sweet Corn: Acceleration of Organic Compost Supply Using Microbial Consortium Formulation Tyasmoro, Setyono Yudo; Saitama, Akbar; zulfikar, Aji
Journal of Tropical Life Science Vol. 14 No. 2 (2024)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.14.02.12

Abstract

Organic waste, primarily originating from agricultural sources, remains underutilized in Indonesia, despite its substantial potential as an organic fertilizer. Consequently, it is imperative to comprehend the technology capable of efficiently decomposing organic matter and yielding high-quality compost. This study aimed to investigate the impact of a microbial consortium comprising Bacillus sp., Pseudomonas sp., Trichoderma sp., and Aspergillus sp. on the decomposition of organic waste derived from rice, sugarcane, corn and as well as to examine its application to sweet-corn (Zea mays var. saccharata). The study used a factorial randomized block design, featuring two primary factors, compost types and their respective doses. This design in total of nine treatments, each replicated three times, thus resulting in a sum of 27 experimental units. The treatments were RSC: Rice straw compost; SLC: Sugarcane leaves compost; CHC: Corn husk compost; D7.5: Compost dose of 7.5 t ha-1; D15: Compost dose of 15 t ha-1; D22.5: Compost dose of 22.5 t ha-1.  Moreover, an essential fertilizer, NPK, was applied at a rate of 200 kg/ha. The findings demonstrated a substantial impact of both compost types and doses on maize growth parameters, which encompassed plant height, leaf area, chlorophyll contentand dry weight. These effects were observed individually, without any interactions between the two factors. Furthermore, these treatments exhibited a discernible influence on corn yield. The highest to lowest yields were recorded as follows: CHC (9.29 t ha-1), RSC (8.72 t ha-1), and SLC (8.00 t ha-1). Combining organic compost with chemical fertilizer effectively prevented nutrient loss through denitrification and evaporation, facilitating nutrient retention and controlled release over time.
Land use changes effect by slash and burn cultivation to understory diversity composition and soil degradation Setiawan, Adi; Pamungkas, Bayu Aji; Ito, Satoshi; Ramadhan, Varotama Putra; Lestariningsih, Iva Dewi; Khumairoh, Uma; Arifin, Syamsul; Wicaksono, Karuniawan Puji; Udayana, Cicik; Kurniawan, Yani; Tyasmoro, Setyono Yudo; Saitama, Akbar; Permanasari, Paramyta Nila; Syib'li, Muhammad Akhid; Aini, Luqman Qurata
Journal of Degraded and Mining Lands Management Vol. 11 No. 4 (2024)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2024.114.6153

Abstract

This study contributes to understanding ecological changes in land use following slash-and-burn land clearing. This study aimed to compare the richness and density of plant species and soil fertility in farmland cultivated for one year (1 Y), three years (3 Y), and five years (5 Y) after slash-and-burn, with the conditions in the secondary forest (SF) in Berau Regency of East Kalimantan. Understory plant taxon types, numbers, and soil organic matter were measured in each region using a series of nested plots. The size of each observation plot was 20 x 100 m. Data on understory vegetation composition was collected using 1 x 1 m mini plots at 20 sampling points and divided into five blocks, with a 10 m spacing between sampling points on each property. Understory vegetation species and cover percentage, litter cover percentage, open soil percentage, and soil fertility were measured for each observation plot. The results showed that the land cover percentage increased each year during the 5 years transition from secondary forest to farmland. Furthermore, within the 5 years, there was a change in understory species, particularly the presence of grasses and sedges at 3 and 5 years after the land use change. However, the transition from secondary forest to farmland within 5 years did not alter soil organic matter and total nitrogen.
Co-Authors Achmad Noerkhaerin Putra Agung Nugroho Akbar Hidayatullah Zaini Akbar Hidayatullah Zaini Akbar Hidayatullah Zaini Akbar Hidayatullah Zaini Akbar Hidayutallah Zaini Aldila Putri Rahayu Alifia Rizky Dalilah Anna Satyana Karyawati Deffi Armita Descha Giatri Cahyaningrum Didik Hariyono Eko Widaryanto Eko Widaryanto Ellis Nihayati Fandyka Yufriza Ali Frelyta Ainus Zahro Hanif Fatur Rohman Husni Thamrin Sebayang Ito, Satoshi Iva Dewi Lestariningsih, Iva Dewi Karuniawan Puji Wicaksono Karuniawan Puji Wicaksono Koesriharti Koesriharti Luqman Qurata Aini Moch. Dawam Maghfoer Muhammad Roviq Mustika, Della Maya Nunun Barunawati Onny C. Pandu Pradana Onny Chrisna Pandu Pradana Pamungkas, Bayu Aji Paramyta Nila Permanasari Paramyta Nila Permanasari Paramyta Nila Permanasari, Paramyta Nila Ramadhan, Varotama Putra Septiana Septiana Septiana Septiana Setiawan, Wiga Tegarmas Setyono Yudho Tyasmoro Setyono Yudo Tyasmoro Syamsul Arifin Syib'li, Muhammad Akhid Tatik Wardiyati Titiek Islami Udayana, Cicik Uma Khumairoh Yani Kurniawan, Yani Yohana Avelia Sandy Zaini, Akbar Hidayatullah Zaini, Akbar Hidayatullah zulfikar, Aji