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All Journal Journal of Social Research Tropical Plantation Journal Loka: Journal Of Environmental Sciences
Lubis, Erwin Junaidi
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Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Social Sciences

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Effectiveness of Fertilization Methods and Organic Compost in Inceptisol Soil Planting Media on Growth of Main Nursery Palm Oil Seedlings Lubis, Erwin Junaidi
Tropical Plantation Journal Vol 4, No 1 (2025): TROPICAL PLANTATION JOURNAL
Publisher : Akademi Komunitas Perkebunan Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56125/tpj.v4i1.47

Abstract

Achievement and Success in Increasing Plant Growth is by Fertilising the Right Target and Method. Optimisation with inorganic fertilization may not be successful if the soil is not sufficient in nutrients. To fertilise the soil, it must be done by giving organic material, so that the soil is fertile. We are a large-scale manufacturer specialising in producing various mining machines including different types of sand and gravel equipment, milling equipment, mineral processing equipment and building materials equipment. Therefore, the right target, method and dose will determine the growth and development of palm oil plants in the Main Nursery. The research was conducted at the Field Laboratory of Soil Management, Conservation at the Institut Teknologi Sawit Indonesia, Medan. Soil Observations at the Soil, Plant, Fertilizer and Water Laboratories at the Agricultural Technology Assessment Centre, Johor, Sumatera Utara. The data results show that the parameters of Plant Height, Stem Circumference, Number of Leaf Sheaths and Leaf Sheats Length have the highest average numbers in the pocket Method, as well as in the Fresh Weight of Roots, Crowns, Dry Weight of Roots, Crowns also have the highest average numbers in the Pocket Method compared to the Sow, Sachet and Drip Fertigation Methods. This indicates that the growth of seedlings of PPKS 718 and PPKS 239 varieties is best in the Pocket Fertilization Method rather than the Sow, Sachet, and Drip Fertigation Methods.
Effect of Biochar on Growth of Main Nursery Palm Oil Seedlings (Elaeis guineensis Jacq.) on Soil Chemical Properties in Vertisol Soil Planting Media Lubis, Erwin Junaidi
Tropical Plantation Journal Vol 4, No 1 (2025): TROPICAL PLANTATION JOURNAL
Publisher : Akademi Komunitas Perkebunan Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56125/tpj.v4i1.49

Abstract

Plant growth response of palm oil seedlings (Elaeis guineensis Jacq.) on D x P Yangambi varieties using biochar applications made from palm oil shells, rice husks, and corn cobs in the Main Nursery. This study aims to determine the effect of the application of several types of biochar on the growth of palm oil seedlings (main nursery) on soil chemical properties namely C-Organic, N-Total, Phosphorus Nutrients, Potassium Nutrients and Soil pH in Vertisol Soil Planting Media. This research was conducted at the Soil Laboratory Practice Farm of the Indonesian Institute of Palm Technology, Medan, North Sumatera. The research used Factorial Randomised Group Design (RGD) with 3 replications. The research was conducted for 4 months. The results showed a significant effect on the application of rice husk biochar, palm oil shells and palm oil cobs and the application of N.P.K.Mg 15.15.6.4 fertilizer at a fertilizer dose of 7.5 g.polybag-1 on the parameters of plant height, stem circumference, number of leaf midribs, and biochar treatment can increase soil pH, Phosphorus nutrients, and Potassium nutrients.
Effect of Liquid Organic Applications of Ananas Comosus (L.) Merr. and Citrullus Colocynthys (L.) Schrad. on Soil Fertility in Latosol Soils and Growth and Yield of Vigna Unguiculata Ssp. Sesquipedalis Plants LUBIS, Erwin Junaidi
Loka: Journal Of Environmental Sciences Vol. 2 No. 2 (2025): Loka: Journal Of Environmental Sciences (April-June)-In Press
Publisher : PT. Keberlanjutan Strategis Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38142/ljes.v2i2.274

Abstract

Purpose:The need for fruit, especially Ananas comosus (L.) Merr. and Citrullus colocynthys (L.) Schrad. Fruit is increasing in the world demand. Ananas comosus (L.) Merr. fruit and Citrullus colocynthys (L.) Schrad. Fruits are very suitable for the health of the human body as a health vitamin enhancer, such as Vitamin C, A, Fibre and Potassium, and their role is very important. However, for health, it is very good for health and soil fertility, because Ananas comosus (L.) Merr. fruit contains 78-87% citric acid, which is found in organic acids other than malic acid and oxalic acid, and the content of Citrullus colocynthys (L.) Schrad. fruit. has a relatively high level of acidity compared to Ananas comosus (L.) Merr. fruit so that it can limit the level of acidity in the effect of citric acid Ananas comosus (L.) Merr. fruit and also good for the growth and yield of Vigna unguiculata ssp. Sesquipedalis.Methodology:This Study used a Factorial Randomized Group Design (RGD). This research was conducted on land located in Pinang Sebatang Timur Village, Tualang District, Siak Regency.Findings:In this study, it was found that the application of mixed formulation of Ananas comosus (L.) Merr. and Citrullus colocynthys (L.) Schrad. fruit as much as 300 ml.polybag-1 mixed with nutrient fertilizer 12.12.17.2 as much as 10 g.polybag-1. Able to increase the growth of Vigna unguiculata ssp. Sesquipedalis plants are well and fertile and have better production results.Implication:In this study, it is indicated to apply it to different soil types as well in order to see the reaction of soil fertility.
Effectiveness of Fertilization Techniques on Growth Two Varieties of Palm Oil Seeds (Elaeis guineensis Jacq.) in Main Nursery Lubis, Erwin Junaidi; Rauf, Abdul; Sarifuddin, Sarifuddin
Journal of Social Research Vol. 2 No. 8 (2023): Journal of Social Research
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/josr.v2i8.1333

Abstract

This research was conducted to see the optimal level of fertilization in oil palms so that the macro and micronutrients are sufficient for the growth of oil palms. This research was carried out in the nursery area of ??the Soil Management Field Laboratory of the Indonesian Palm Oil Institute, Medan by observing soil characteristics. Soil analysis at the Soil, Plant, Fertilizer, and Water Laboratory at the Johor Agricultural Technology Study Center, North Sumatra, and the Analysis Laboratory at the Medan Oil Palm Research Center by observing soil analysis on chemical, physical, and cation exchange properties, as well as vegetative and fresh weight observations and dry plants. The study used a Completely Randomized Block Design where seedling height, stem circumference, number of leaf midribs, and leaf sheath length had the highest values ??in the sowing fertilization technique, as well as in the fresh weight of roots, shoots, and dry weight of roots, crowns also had the highest values ??in the sowing technique compared to sachets. and drip fertigation. This indicates that the growth and development of oil palm seedlings in the main nursery for PPKS 540 and SP-1 (Dumpy) varieties showed a positive response to the best growth increase in the sowing fertilization technique.
Co-Authors Abdul Rauf Sarifuddin Sarifuddin