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All Journal AGROVITAL : Jurnal Ilmu Pertanian CELEBES Agricultural Jurnal Ilmiah Mahasiswa Fakultas Pertanian (JIMFP) Rona Teknik Pertanian

Herwin Yatim

Department Of Agrotechnology, Faculty Of Agriculture, Tompotika Luwuk University

Author-ID : 3638316

Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Engineering Veterinary

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Soil fertility status and land suitability evaluation for rice crops on former shrimp ponds: Soil fertility status and land evaluation assessment Ripaldi S. Sabudu; Moh Zulfajrin; Mihwan Sataral; Hidayat Arismunandar Katili; Herwin Yatim
CELEBES Agricultural Vol. 2 No. 1 (2021): CELEBES Agricultural
Publisher : Faculty of Agriculture, Tompotika Luwuk University

Undertaking suitable land, including former shrimp ponds for rice, is required to cope with future rice shortages. The purpose of this study was to identify the soil morphology and physicochemical properties, determine soil fertility status and assess irrigated rice suitability of ex-shrimp ponds. Soil morpho-physicochemical properties such as soil color, structure, texture, pH, organic-C, P2O5, K2O, base saturation, and cation exchange capacity were determined. The resulting data was then matched into the criteria for BSCR and SLAN/CCDS, five major soil fertility criteria, and ICALRRD land suitability. Soil physiographical, morphological, and physicochemical analysis suggested that the soil developed from the alluvial site of calcareous-marl parent material located at saturated backswamp, then permanently drained. ESP, SAR, and salinity values were detected relatively lower than saline, sodic, and saline-sodic soil. The entire cations fell below BCSR ideal ratios, whereas all exchangeable K were detected below the CCDS/SLAN thresholds. Actual suitability for land units of A, B, and C were S3-rc,na, S3-na and S3-rc,nr,na,eh, respectively. The improvement such as fertilization, amelioration, slope flattening/cut-filling, and irrigation management increases all land units to S1. This study pinpointed the importance of former shrimp pond soil to provide suitable land for rice crop cultivation. Also, encouraging further research to identify the origin of alluvial parent material from the soil at the study site

Combination of NPK fertilizer with bokashi rice straw on growth and yield of Cisantana rice varieties Akram Boga; Herwin Yatim
CELEBES Agricultural Vol. 2 No. 1 (2021): CELEBES Agricultural
Publisher : Faculty of Agriculture, Tompotika Luwuk University

One of the cultivation technologies that need to be considered in increasing rice production is the proper use of fertilizer. This study is to find out the substitution of NPK fertilizer with rice straw bokashi to the growth and yield of rice paddy plants cisantana varieties. This research was conducted from August to November 2020 in Samaku Village, Bualemo District, Banggai Regency. The method used is a RandomIzed Design Group (RAK) factorial pattern consisting of 2 factors, namely factor A (NPK fertilizer) and factor B (Straw Bokashi). The combination of NPK fertilizer and rice straw bokashi has no natural effect on rice paddy plants of Cisantana varieties. Still, it has a natural impact on grain dry weight per plot. The treatment of rice straw bokashi independently has a noticeable effect on the height of the plant, the number of saples, the number of productive saples and the length of the panic. The bokashi straw rice dose of 75% (3.75 tons/ha) is the best dose for high plant growth, number of saples, number of productive saples and malai length. While the dose of 75% NPK (187.5 kg/ha) + 75% bokashi rice straw (3.75 tons/ha) is the best combination dose for varied dry weight of grain per plot.

Analysis of Soil Fertility in Oil Palm Plantation (Elaeis guineensis Jacq) Smallholder Farmers in East Luwuk District, Banggai Regency: Soil fertility of smallholder oil palm plantation Jen Achen Amu; Herwin Yatim; Irsan Tatu; Hidayat Arismunandar Katili
CELEBES Agricultural Vol. 3 No. 1 (2022): CELEBES Agricultural
Publisher : Faculty of Agriculture, Tompotika Luwuk University

One of the factors that influence the production of oil palm plantations is the condition of the land favorable for their growth and development, especially regarding the physical and chemical properties of the soil and the status of soil fertility. The purpose of this study was to determine soil’s physical and chemical properties, as well as its fertility status on smallholder oil palm plantations. Soil sampling was conducted through a descriptive exploratory survey method, involving six sampling points and representing three oil palm ages (11, 16, and 22 years old). The soil chemical and fertility status were analyzed using the National Criteria of Soil Chemical Properties developed by Soil Research Institute and Five Major Soil Chemical Properties approach developed by Soil Research Center. All observed soil exhibited clay textures and varying soil color matrix. The soil had neutral acidity, medium to high base saturation/BS and cation exchange capacity/CEC, moderate P2O5, as well as low organic C and K2O. Soil fertility status on the entire sites were classified as low, which primarily caused by low soil organic C and K contents. In order to improve soil condition favorably for oil palm growth and development, further studies must be conducted using more direct approach, relating the oil palm requirement with current state of soil and land conditions.

Co-Authors Akram Boga Armelia Sambayo Dian Puspapratiwi Ferdi Paparang Firdas Irsan Tatu Jen Achen Amu Katili, Hidayat Arismunandar Lani Pelia Mardia Mardia Mihwan Sataral Moh Zulfajrin Nurmaningsi Masulili Nurmasyita Mambuhu Nurzaman Hayat Ripaldi S. Sabudu Sariani Sutarmin D Hi Ahmad Sutiknio Hadi Pranoto Yatim, Hertasning Zaedar A. Dg. Masese

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