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All Journal Journal of Tropical Horticulture
Agustina E Marpaung
Berastagi Experimental Farm (Indonesian Vegetables Research Institute) Jl. Raya Medan-Berastagi Km. 60 Berastagi, 22156
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry

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Effectivity of Potassium and Fish Fertilizer on Leek Growth (Allium fistulosum L.) Bina Beru Karo; Agustina E Marpaung
Journal of Tropical Horticulture Vol 3, No 1 (2020): April 2020
Publisher : Indonesian Society for Horticulture (Perhimpunan Hortikultura Indonesia Komisariat Aceh)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1437.973 KB) | DOI: 10.33089/jthort.v3i1.41

Abstract

Leek is one type of leaf vegetable that is commonly used for cooking vegetables or seasonings. Currently, it founded some problem in leek cultivation, including the production is low because the fertilization is not appropriate. The type and dosage of fertilizer can contribute to increasing production. This research aims to determine the dosage of potassium, and fish fertilizer is right for increased leek production. The research was conducted from January - March 2015 in the Berastagi experimental farm, with altitude ± 1340 meters above sea level; the soil type was andisol. Experiments using a randomized block design (RBD) factorial with three replications. The first factor is the dosage of potassium fertilizer K0 (0 kg/ha), K1 (100 kg/ha), K2 (200 kg/ha), and K3 (300 kg/ha). The second factor is dosage fish fertilizer I0 (0 kg/ha), I1 (500 kg/ha), I2 (1000 kg/ha), and I3 (1500 kg/ha). The leek variety was used is local variety. The results showed that there is an interaction between the potash and fish fertilizers on leek plant height. Application potash fertilizer (K2O) dosage of 200 kg/ha and fish fertilizer dosage of 1000 kg/ha can increase the leek plant height 56,98 cm. Application potash fertilizer (K2O) dosage of 200 kg/ha can increase the stem diameter, length of stems, length of leaves, and fresh weight per plant. Application fish fertilizer dosage of 1000 kg/ha can increase the stem diameter, leaves length, fresh and dry weight per plant
Adaptability of Growth and Yield on 5 varieties of Shallot (Allium ascalonicum L) in Wet Highland Agustina E Marpaung; Rini Rosliani
Journal of Tropical Horticulture Vol 2, No 1 (2019): April 2019
Publisher : Indonesian Society for Horticulture (Perhimpunan Hortikultura Indonesia Komisariat Aceh)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1539.604 KB) | DOI: 10.33089/jthort.v2i1.12

Abstract

In general, shallot was planted in low land to highland, but it usually planted in area has rain fall and humidity not high, because can effect to the yielding, so that needed the adaptive varieties in the condition. The aim of the research was to determine the growth and yield of some varieties of shallot adaptive in wet highlands. The research conducted in Berastagi experimental farm, Dolat Rayat district, Karo regency, with type of the soil is andisol and altitude of 1,340 m asl. The research was beginning from September - December 2015. The design was used randomize block non factorial with 5 replication. The treatment was shallot varieties (Bima, Maja, Trisula, Agrihorti 1 and Agrihorti 2). The shallot seeds were from Java. The result showed that the Agrihorti 1 and Bima varieties had a more adaptive vegetative growth in wet highland than 3 other varieties. Agrihorti 1 and Bima varieties produced the highest bulb production respectivaly i.e.12,76 kg / 5 m2 and 12,61 kg / 5 m2. Agrihorti 1 varieties have the largest bulb diameter 2,99 cm. Shallot Agrihorti 1 varieties adaptive in the wet highland.
Co-Authors Bina Beru Karo Rini Rosliani