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All Journal AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment)
Enita Enita
Sekolah Tinggi Ilmu Pertanian Graha Karya, Muara Bulian, Jambi Province
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Education Energy Environmental Science

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Application of Tithonia Compost as Alternative Synthetic Fertilizer Source N and K on Young Oil Palm Plantation Enita Enita; Hermansyah Hermansyah; Teguh Budi Prasetyo
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Vol. 4 No. 1 (2020)
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (313.88 KB) | DOI: 10.29165/ajarcde.v4i1.40

Abstract

Currently, large oil palm plantations are cultivated on ultisol. Ultisol has various constraints in its utilization for the cultivation of plants, because it has high exchangeable Al, low pH, low soil organic nutrient contained, and soil nutrients such as N, P, K, Ca, Mg. Large quantities and continuous fertilizer are needed for a long time. To solve these problems required to look for alternative fertilizers. These alternative fertilizers are expected to reduce the use of synthetic fertilizers without decreasing production and are available forever. Efforts to produce that location organic matter are the right choice. Tithonia can be grown in the form of alley cropping at young palm plantations. A series of experiments have been conducted at Andalas University experimental farm in Padang, West Sumatra Province. This study used the Factorial design. The treatments are tithonia compost and Lime application. There are 3 rd compost doses in 3 replication each treatment. The experimental obtained that tithonia compost dosage 25% and 50% + 25% and 50% synthetic fertilizer were changed soil chemical properties such as increased 0.94 units soil pH, availability of nutrient contained; 6.22% C-organic, 0.25% N-total, 0.37me/100g exchangeable K, 2.74 me/100g exchangeable-Ca, 0.29 me/100g exchangeable-Mg, in the soil, as well as the decrease of exchangeable Al. Furthermore supporting plant growth such as (plant height, plant length, and the number of the leaf). Liming not significantly different for soil chemical properties and growth of oil palm. The higher the compost dose is given the better the growth of oil palms. Cultivation of tithonia as alley cropping at oil palm plantation can be used as composite materials for synthetic fertilizer substitute source N and K
Addition of Tithonia Compost and Lime as Ultisol Soil Fertility Improvement for Oil Palm Sedling Media Enita Enita; Nurhajati Hakim; Hermansah; Teguh Budi Prasetyo
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Vol. 6 No. 1 (2022)
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (243.046 KB) | DOI: 10.29165/ajarcde.v6i1.85

Abstract

Research to improve soil fertility, especially the chemical characteristics of Ultisol, has been carried out by adding compost and lime. The incubation method of soil plus compost at a dose of 0.5 kg/pot – 2 kg/pot and 1x exchanged Al lime was carried out for 2 weeks. The results of soil nutrient analysis after incubation were an increase in pH of 0.58 points, a decrease in exchanged Al to unmeasured, an increase in the C-organic content of the soil by 3.44%, an increase in the total N-value of the soil by 0.19%, an increase in the amount of soil organic matter. P-available was 5.81 ppm and exchanged K soil increased by 0.02 me/100 g soil. Likewise, the micro elements analyzed also increase. Thus there is a change in the chemical properties of the soil towards the better. The increase in nutrients N, P, K, Ca, and Mg clearly comes from tithonia, which is the result of decomposition of tithonia compost which is added containing high nutrients. In addition, tithonia compost produces organic acids that can dissolve previously insoluble nutrients into soluble ones. The improvement of the chemical properties of the soil towards a better direction is expected to be able to increase the growth of oil palm seedlings planted on the seedling medium growing.
Co-Authors Hermansah Hermansah Hermansyah Hermansyah Nurhajati Hakim Teguh Budi Prasetyo