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All Journal HAYATI Journal of Biosciences Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Applied Research in Science and Technology Open Global Scietific Journal
Muhamad Khoiru Zaki
Departemen Teknik Pertanian Dan Biosistem, Fakultas Teknologi Pertanian, Universitas Gadjah Mada
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Environmental Science

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A SPATIAL MULTI CRITERIA EVALUATION DAN WEIGHTED LINEAR COMBINATION UNTUK EVALUASI KESESUAIAN LAHAN KAKAO: KASUS DESA NGLANGGERAN - DAERAH ISTIMEWA YOGYAKARTA Antonius Wahyu W; Ngadisih Ngadisih; Chandra Setyawan; Muhamad Khoiru Zaki
Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Vol 11 No 1 (2023): Jurnal Ilmiah Rekayasa Pertanian dan Biosistem
Publisher : Fakultas Teknologi Pangan & Agroindustri (Fatepa) Universitas Mataram dan Perhimpunan Teknik Pertanian (PERTETA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (800.103 KB) | DOI: 10.29303/jrpb.v11i1.438

Abstract

Tujuan utama penelitian ini adalah menerapkan dua metode untuk menetapkan kelas kesesuaian lahan Kakao di Desa Nglanggeran. Metode yang digunakan adalah Spatial Multi-Criteria Evaluation (SMCE) dan Weighted Linear Combination (WLC) dengan menggunakan parameter evaluasi lahan: curah hujan, kelerengan, temperatur, pH tanah, tekstur tanah, kandungan bahan organik tanah, dan parameter ekonomi (jarak dari jalan dan pasar). Alat yang digunakan untuk penelitian yaitu seperangkat komputer, ArcGIS 10.3, kamera drone (DJI Phantom 4 Pro V2), peralatan laboratorium untuk menganalisis jenis tanah, dan sekop & ring sampler untuk pengambilan sampel tanah. Bahan yang diperlukan dalam penelitian yaitu sampel tanah dari 10 titik kebun kakao yang ada di Desa Nglanggeran untuk menentukan tekstur, kandungan bahan organik dan pH tanah. Selain itu, penelitian ini menggunakan shapefile peta Desa Nglanggeran, data DEMNAS, dan data iklim. Terdapat tiga penggunaan lahan yang dijadikan target evaluasi lahan yaitu agroforestri, semak, dan lahan tadah hujan seluas 518,66 Ha (64,6% dari total luas wilayah desa). Penelitian ini memodifikasi pembagian kelas, pembobotan, dan skoring dari setiap parameter yang digunakan. Validasi metode SMCE dan WLC dilakukan dengan ratio pixel kebun kakao dan kelas kesesuaian lahan. Penelitian ini menetapkan bahwa sebagian besar wilayah di Desa Nglanggeran merupakan daerah dengan kelas kesesuaian kurang baik untuk budidaya kakao. Lahan dengan kelas sangat sesuai (S1) seluas 14,9% dari total target area. Lahan dengan kategori marginal (S2 dan S3) 49,3% dari total luas wilayah desa. Sedangkan lahan dengan kelas kesesuaian tidak sesuai (N)  0,4% dari total luas wilayah desa. Faktor yang menjadi pembatas kesesuaian lahan Kakao di Nglanggeran (N) adalah kelerengan lahan yang curam, nilai pH tanah yang rendah, dan tekstur tanah yang kurang sesuai di daerah tersebut. Oleh karena itu, penelitian ini mendorong untuk melakukan rekayasa/modifikasi kelerangan lahan dan sifat tanah dengan bahan pengkondisi tanah. Penelitian ini membuktikan bahwa metode SMCE dan WLC dapat diterima untuk menilai kesesuaian lahan kakao di Nglanggeran.
Pendekatan Komprehensif Kesesuaian Lahan Budidaya Tanaman Padi Sawah di Kabupaten Paser, Provinsi Kalimantan Timur Ngadisih, Ngadisih; Fitriana, Lely; Susanto, Sahid; Arief, Sigit Supadmo; Zaki, Muhamad Khoiru; Setyawan, Chandra
Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Vol 12 No 2 (2024): Jurnal Ilmiah Rekayasa Pertanian dan Biosistem
Publisher : Fakultas Teknologi Pangan & Agroindustri (Fatepa) Universitas Mataram dan Perhimpunan Teknik Pertanian (PERTETA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jrpb.v12i2.661

Abstract

This study aimed to present a comprehensive evaluation of land suitability for wetland paddy cultivation in Paser Regency, East Kalimantan Province using the Simple Additive Weighting (SAW) process and Geographic Information System (GIS) techniques. The ten factors determining land suitability selected were soil texture, soil depth, soil drainage, soil type, rainfall, temperature, slope, distance from roads, distance from rivers and land use. The factor weights were considered the same, for the suitability analysis of the use of rice development in the study area. Then, after carrying out a weighted sum analysis, Paser Regency was qualitatively categorized as very suitable, quite suitable, marginally suitable, not currently suitable for rice land development with values ​​of 20, 39, 28, 13% respectively. Meanwhile, taking into account land use, the very suitable category was 20% and quite suitable was reduced to 33% of the total research area. Based on the available land, the opportunity for developing rice plantations in Paser Regency was relatively large. The study revealed that the SAW approach technique was acceptable for identifying appropriate land for rice development in the study area.
Using SoilGrids250m for Overlooking Spatial and Vertical Distribution of Soil Physico-chemical Properties Over Tropical Climate Asia Munawaroh, Umi; Zaki, Muhamad Khoiru
Applied Research in Science and Technology Vol. 5 No. 1 (2025): Applied Research in Science and Technology
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33292/areste.v5i1.76

Abstract

Background: Understanding the interaction, spatial and vertical distribution of soil chemical properties over climate type in tropical Asia and various depths of soil is essential for sustainable land management, particularly in regions experiencing dynamic conditions.Aims & Methods: This study investigates the relationships of each parameter such as cation exchange capacity (CEC), soil pH, and soil organic carbon (SOC) tropical Climate Asia. Using stratified random sampling based on Köppen–Geiger climate classifications and a consistent spatial resolution of 0.25° × 0.25°, we analyzed 45 sample points distributed across tropical rainforest, monsoon, and savanna climates. The data were extracted from SoilGrids 250m and reconciled using conservative remapping and bilinear interpolation techniques. Corresponding soil chemical data were obtained from validated regional databases.Result: The results show that a correlation matrix analyzing relationships among key soil physico-chemical properties across multiple depths. Strong positive correlations were found between soil organic carbon (SOC) and total nitrogen (N) (r > 0.8), reflecting their shared origin in organic matter. Bulk density (BD) exhibited moderate to strong negative correlations with SOC and N (r ≈ -0.5 to -0.8), particularly in surface layers, indicating the influence of organic matter on soil structure. Correlations weaken with depth, reflecting reduced nutrient interaction. These patterns highlight the importance of organic matter inputs and minimal soil disturbance in maintaining soil health and guiding sustainable land management strategies.
Effect of Vermicompost and Rice Husk Ash as an Organic Growing Media on Rice Seedling and Mat Quality in Tray Nursery Widi, Hastungkoro; Zaki, Muhamad Khoiru; Munawaroh, Umi
Open Global Scientific Journal Vol. 4 No. 1 (2025): Open Global Scientific Journal (OGSJ)
Publisher : Research and Social Study Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70110/ogsj.v4i1.50

Abstract

Background: Efficient mechanized rice transplanting depends on both the structural integrity of seedling mats and the physiological quality of the seedlings. To address this need, enhancing seedling and mat through organic growing media is essential for optimizing mechanized rice transplanting.Aims & Methods: This study aimed to evaluate the effects of organic amendments on seedling quality (seedling height, biomass, and plant population) and mat characteristics (thickness, weight, rolling score and diameter) in tray nursery. A randomized complete block design with three replications was employed, testing four treatments: alluvial soil without organic amendment (CO), with vermicompost (V), with rice husk ash (R), and with vermicompost and rice husk ash (RV).Results: The results showed that the rice seedling nursery using a mixture of soil and organic growing media (R, RV, and V) produced better seedling quality compared to CO including seedling height, biomass, and plant population. Regarding mat performance, RV produced the thickest (1.77 cm) and lightest (3.27 kg) mats, aligning with ideal conditions for mechanical transplanting. In contrast, CO mats were the heaviest (4.40 kg), and V produced the thinnest mats (1.40 cm). Rolling quality was highest in CO (score 10), while RV mats showed lower rolling integrity (score 6.7). V treatment achieved the smallest roll diameter (13.87 cm), facilitating better handling and transport. Overall, the results demonstrate that organic amendment selection significantly affects both physiological seedling traits and the physical integrity of seedling mats. The RV treatment offered the most balanced improvement in mat structure and seedling growth, making it a promising option for mechanized rice production.
Termites as Soil Engineers: A Study on Organic Carbon and Nutrient Dynamics using Baiting Techniques in Tropical Forest Ecosystem Febriani, Sri Rezeki; Ariyanto, Dwi Priyo; Cahyono, Ongko; Tarmadi, Didi; Wikantyoso, Bramantyo; Himmi, Setiawan Khoirul; Zaki, Muhamad Khoiru
HAYATI Journal of Biosciences Vol. 33 No. 2 (2026): March 2026
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.33.2.394-403

Abstract

This study explores how termite activity affects soil chemistry, those are Soil Organic Matter (SOC) and nutrient dynamics in pine and mahagony forest of varying ages in the Bromo Forest, Indonesia. Termite activity was assessed using wooden poles placed in PVC pipes as bait, which also served for soil sampling. The results showed significant differences in SOC and total NPK levels among different pole damage classes in each forest. The highest values were observed in pole damage class 4. Termite-influenced soil, especially those affected by the genera Macrotermes sp., Microtermes sp., and Schedorhinotermes sp., showed the highest concentrations of SOC and NPK (4.97%, 0.51%, 15.42 mg/100 g, and 45.9 mg/100 g, respectively). The termite diversity index showed moderate diversity in all pine forests and low diversity in mahogany forests. The termite diversity index indicated moderate diversity in pine forests and low diversity in mahogany forests, likely influenced by bait type. These results demonstrate that termite activity significantly enhances soil nutrient content and can be used as an indicator of soil fertility status in tropical forest ecosystems.
Co-Authors Antonius Wahyu W Arief, Sigit Supadmo Chandra Setyawan, Chandra Dwi Priyo Ariyanto Febriani, Sri Rezeki Fitriana, Lely Himmi, Setiawan Khoirul Keigo Noda Keigo Noda Komariah Komariah Muchammad Bima Gegana Sakti Munawaroh, Umi Ngadisih Ngadisih Ngadisih Ngadisih Ongko Cahyono Sahid Susanto Sumani Sumani Tarmadi, Didi Widi, Hastungkoro Wikantyoso, Bramantyo