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All Journal JTSL (Jurnal Tanah dan Sumberdaya Lahan)
S Soemarno
Universitas Brawijaya
Agriculture, Biological Sciences & Forestry Environmental Science

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PENGARUH APLIKASI KOMPOS KULIT BUAH KOPI TERHADAP KANDUNGAN BAHAN ORGANIK DAN FOSFOR PADA INCEPTISOL KEBUN KOPI DESA BANGELAN, MALANG Nadiya Risdawati; S Soemarno
Jurnal Tanah dan Sumberdaya Lahan Vol. 8 No. 2 (2021)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (333.47 KB) | DOI: 10.21776/ub.jtsl.2021.008.2.17

Abstract

High coffee production rates result in an increase in coffee waste, especially on the skin, which has not been used optimally. Inside the skin of the coffee fruit, there is 45.3% organic matter, 2.98% nitrogen, 0.18% phosphorus, and 2.26% potassium content which has the potential to be used as compost. The soil used in this research is Inceptisol soil type obtained from PTPN XII Bangelan Coffee Plantation, Malang. Inceptisol soil in this land has several problems, such as low soil fertility due to intensive use and improper fertilizer management. The use of compost can increase nutrient content and increase the pH value of the soil. This research was done in three different places at PTPN XII Bangelan for taking samples, Agriculture Faculty of Brawijaya University, especially in Soil Biology and Chemistry Laboratory for the incubation process and analysis of soil chemical characteristics. This research used a completely randomized factorial design with nine treatments and three replications. The nine treatments consisted of different soil depth such as (0 - 20 cm, 20 - 40 cm, and 40 - 60 cm) and three different dosages. The results showed that the application of coffee peel residue to soil significantly affected organic matters (organic-C) and phosphorus. For organic matters, soil depth that consisted most of it was 0 – 20 cm (topsoil), and the fertilizer dosage that consisted most of it was dosage 0.58 g ha-1 and 1.16 g ha-1.
PENGARUH KOMPOS KOTORAN KAMBING TERHADAP KANDUNGAN KARBON DAN FOSFOR TANAH DARI KEBUN KOPI BANGELAN Radifta Adika Suarmaprasetya; S Soemarno
Jurnal Tanah dan Sumberdaya Lahan Vol. 8 No. 2 (2021)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (287.651 KB) | DOI: 10.21776/ub.jtsl.2021.008.2.21

Abstract

Inceptisol has a special characteristic, which is low in organic matter. Other chemical problems possessed by Inceptisol include acidic pH, high clay content, and washable surface layers. The compost of goat manure can improve soil chemical properties. The purpose of this study was to determine the effect of the application of goat manure compost at various doses on the carbon and phosphorus content of Inceptisol soil in Bangelan, Malang, East Java. The treatments tested were K1D1 (0-20 cm depth, without compost dose), K1D2 (0-20 cm depth, with compost dose 0.5 g 500 g-1 soil), K1D3 (0-20 depth, with compost dose 1 g 500 g-1 soil), K2D1 (20-40 cm depth, without compost dose), K2D2 (20-40 cm depth, with compost dose 0.5 g 500 g-1 soil), K2D3 (20-40cm depth, with compost dose 1 g 500 g-1 soil), K3D1 (40-60 cm depth, without compost dose), K3D2 (40-60 cm depth, with compost dose 0.5 g 500 g-1 soil), K3D3 (40-60 cm depth, with compost dose 1 g 500 g-1 of soil). The nine treatments were arranged in a completely randomized factorial design with three replications. The results showed that at a depth of 0-20 cm, 20-40 cm, and 40-60 cm with an additional dose of 1 g 500 g-1 of soil was the best dose given into the soil because it had a significant effect on increasing pH, C-organic, available P and total P in the soil.
ANALISIS PERMEABILITAS TANAH LAPISAN ATAS DAN BAWAH DI LAHAN KOPI ROBUSTA Febri Ayu Alista; S Soemarno
Jurnal Tanah dan Sumberdaya Lahan Vol. 8 No. 2 (2021)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (990.585 KB) | DOI: 10.21776/ub.jtsl.2021.008.2.20

Abstract

Coffee (Coffea sp.) is one of the leading commodities in Indonesia for it has a high economic value. In Bangelan Village, Malang Regency, there is a company that manages robusta coffee commodity. The land was converted into a coffee plantation from forest land. The conversion of forest land into a coffee plantation caused the decreasing number of total soil pores lower than the forest land. This will make it difficult for water to absorb into the soil. This research was conducted in Afdeling Besaran, PT. Perkebunan Nusantara XII Kebun Bangelan to elucidate the value of soil permeability and the nature of the relationship between them. The result of this research indicated that the permeability of the soil on each land map unit was in the category of fast permeability class and slightly fast permeability class. The highest soil permeability value was found on land map unit 2 at the 56 years average age of coffee robusta field, with each depth of 6.03 cm hour-1, 7.95 cm hour-1, and 7.82 cm hour-1. Soil permeability is influenced by soil porosity, sand and silt with a positive correlation way. In addition, aggregate stability, soil bulk density and clay also significantly affected the soil permeability with a negative correlation way. Permeability affected the production of robusta coffee plants with a positive correlation way of 16.09%.
Co-Authors Febri Ayu Alista Nadiya Risdawati Radifta Adika Suarmaprasetya