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Daniel P. M. Ludong
Program Studi Teknik Pertanian, Jurusan Teknologi Pertanian Fakultas Pertanian UNSRAT
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology Medicine & Pharmacology

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Fertigasi Pada Hidroponik Wick Dengan Pupuk Organik Cair Kotoran Sapi Untuk Tanaman Cabai Renaldy S Mamangkey; Dedie Tooy; Daniel P. M. Ludong
JURNAL BIOS LOGOS Vol. 13 No. 2 (2023): JURNAL BIOS LOGOS
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jbl.v13i2.46345

Abstract

Chili (Capsicum annum L.) is a type of vegetable that is widely cultivated by farmers in several regions in Indonesia. The productivity of chili plants has decreased due to the excessive use of inorganic fertilizers. Fertilization using liquid organic fertilizer from cow dung is one effort to minimize the use of inorganic fertilizers. This study aims to examine the application of POC nutrition from cow dung in a wick hydroponic fertigation system for the development of chili plants. Observations were made to determine the water needs of plants (evapotranspiration) and the development of hydroponic chili plants with different concentrations of nutrients from liquid organic fertilizer from cow dung. Optimal treatment of giving nutrient concentrations of cow dung liquid organic fertilizer to plant water needs or evapotranspiration and development of chili plants is found at a concentration of 1,000 ppm (P3).
Kajian Penggunaan LED pada Pertumbuhan Tanaman Kailan dengan Sistem Hidroponik Dalam Ruangan Christian I G Hutapea; Leo Kalesaran; Daniel P. M. Ludong
JURNAL BIOS LOGOS Vol. 13 No. 2 (2023): JURNAL BIOS LOGOS
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35799/jbl.v13i2.46426

Abstract

The use of LED (Light Emitting Diode) in indoor hydroponic systems can optimize the process of photosynthesis in plants. This can be a replacement of sunlight during plant growth. This study aims to examine the treatment of LED light intensity and duration of irradiation on the vegetative growth of kailan (Brassica oleracea var. alboglabra L) in indoor hydroponic systems. This experimental study consisted of 5 treatments: exposure to white (A1) and blue (A2) LED lights, exposure time of 16 hours (B1) and 20 hours (B2) and sunlight (K0) as a control in a greenhouse. Treatment with LED lights placed in the growth chamber. Treatment consisted of 4 replicates with a total of 20 plants. The results showed that the white LED light intensity and 20 hours of irradiation time were better than other treatments including plant height, stem diameter, leaf width, leaf length, number of leaves, fresh weight, root weight and water efficiency.
Co-Authors Christian I G Hutapea Dedie Tooy Leo Kalesaran Renaldy S Mamangkey