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Program Studi Magister Sains Pertanian, Program Pascasarjana, Universitas Warmadewa jalan Terompong No 24, Denpasar, Bali
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Agriwar Journal
Published by Universitas Warmadewa
ISSN : 28081323     EISSN : 28081137     DOI : https://doi.org/10. 22225/aj
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Agriwar Journal is an agricultural science journal published for the development of science and technology in the use of natural resources and sustainable agricultural management, which provides a forum for publishing research articles or review articles. This journal includes original research articles, review articles and brief communication bases for agricultural development including; Agronomy, Soil Science, Pest Disease Control, Food Technology, Biotechnology, Fisheries, Aquatic Resources Management, Livestock, Animal Feed Nutrition, Agribusiness, and Agroindustry.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Agronomi dan Ilmu Tanaman
Articles 5 Documents
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Search results for , issue "Vol. 2 No. 1 (2022): Agriwar Journal" : 5 Documents clear
Application of Biochar and Poschar from Several Types of Animal Manure on the Growth and Yield of Red Chili Plants (Capsicum annuum L.) Afelinus Rematwa; Yohanes Parlindungan Situmeang; Made Suarta
Agriwar Journal Vol. 2 No. 1 (2022): Agriwar Journal
Publisher : Program Studi Magister Sains Pertanian Program Pascasarjana Universitas Warmadewa

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Abstract

This study aims to determine the effect of doses of biochar and various types of poschar and their interactions on the growth and yield of red chili plants. This research was conducted in Buduk village, Mengwi sub-district, Badung district at an altitude of 65 meters above sea level. This research activity took place from April to July 2021. The design used in this study was a factorial randomized block design (RBD) consisting of 2 treatment factors. The first factor is the dose of biochar (B) which consists of 2 levels (0 and 15 tons/ha), while the second factor is the type of poschar (P) which consists of 3 levels (without poschar, beef poschar, and goat poschar). The results showed that the interaction between the dose of biochar and the type of poschar (BxP) had a significant effect on the number of leaves and fruit number, fruit weight and had a very significant effect on stem diameter, but had no significant effect on plant height, number of productive branches, fruit length, and diameter. fruit per plant. Biochar treatment had a very significant effect on the variables of plant height, number of leaves, and fruit weight per plant and significantly affected the number of fruits, number of productive branches per plant, and fruit length per plant but had no significant effect on stem diameter. Poschar application showed no significant effect on all observed variables except for plant height which had a significant effect. The highest fresh weight of chili fruit per plant was obtained from the interaction of chicken biochar with no poschar, which was 1326.20 g, followed by the interaction between chicken biochar and goat's poschar, which was 1297.85 g, and the interaction between chicken biochar and beef poschar, which was 1081.71 g which increased by 114.11%, 109.53%, and 74.64% respectively compared to the interaction between the treatment without biochar and without poschar which was 619.41 g.
Arabica Coffee Growth Response on Composting Time Treatment and Coffee Skin Biochar Dosage I Putu Angga Bismantara; Yohanes Parlindungan Situmeang; I Gusti Bagus Udayana
Agriwar Journal Vol. 2 No. 1 (2022): Agriwar Journal
Publisher : Program Studi Magister Sains Pertanian Program Pascasarjana Universitas Warmadewa

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Abstract

This study aims to determine the effect of composting time, biochar dose, and the interaction between composting time and biochar dose on the growth of Arabica coffee seedlings. This research was conducted at UPP Arabica Coffee Plantation. Catur Paramitha in Catur Village, Kintamani District, Bangli Regency, Bali Province. The altitude of the place is between 1,250 meters above sea level. The time of the research was carried out from September to December 2021. This study used a Randomized Block Design (RAK) with 2 factors arranged in a factorial manner. The first factor is the time of composting of wet coffee skin waste material which consists of 2 levels, namely P1 = 2 weeks of composting and P2 = 4 weeks of composting. The second factor is the dose of biochar as raw material for dried coffee cherries, consisting of 4 levels, namely, B0 = control, B1 = 5 tons/ha, B2 = 10 tons/ha and B3 = 15 tons/ha thus obtained 8 repeated combination treatments. 3 times so 24 plants are needed. The variables observed were plant height, number of leaves per plant, stem diameter, plant leaf area, root fresh weight per plant, stem fresh weight per plant, leaf fresh weight per plant, stem, and leaf fresh weight per plant, and total fresh weight per plant. and total oven-dry weight per plant. The treatment with 4 weeks of composting gave the highest total fresh weight per plant, which was 10.43 g, which increased by 11% when compared to the treatment with 2 weeks of composting, which was 9.44 g. The treatment with a dose of 15 tons/ha of biochar gave the highest total fresh weight per plant, which was 10.45 g, which increased by 13% when compared to the treatment without biochar, which was 9.27 g. The interaction of 4 weeks of composting with a dose of 15 tons/ha of biochar (P2B3) gave the highest total fresh weight yield per plant of 11.73 g which increased by 24% when compared to the interaction of 2 weeks of composting without biochar (P1B0) which was 9.4g.
The Use of Bamboo Biochar as a Soil Improver on the Growth and Yield of Mustard Plants Yohanes Parlindungan Situmeang
Agriwar Journal Vol. 2 No. 1 (2022): Agriwar Journal
Publisher : Program Studi Magister Sains Pertanian Program Pascasarjana Universitas Warmadewa

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Abstract

This study aims to obtain the right dose of biochar in mustard plants. The design used was a completely randomized design with a one-factor pattern. The biochar treatment was studied at four dose levels and one control. The application of biochar significantly affected plant height, total fresh weight, and total dry weight, except for the number of leaves which was not significant. The highest total dry weight yield was achieved at 9 t ha-1 biochar with a weight of 10.80 g or an increase of 60% compared to 6.75 g without biochar. From the regression analysis, the effect of biochar on total dry weight was found on the quadratic regression line with the equation: Ŷ = 6.717 + 0.8217 X - 0.04381 X2 (R2 = 91.80%), biochar with an optimal dose of 9.38 t ha -1 and a maximum total dry weight of 10.70 g.
Refraction of Light on Prisma Applications Gede Yohanes Arygunartha; Ni Luh Putri Setyaningsih
Agriwar Journal Vol. 2 No. 1 (2022): Agriwar Journal
Publisher : Program Studi Magister Sains Pertanian Program Pascasarjana Universitas Warmadewa

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Abstract

A prism is a clear object made of glass. Its uses include directing light beams, changing and invertingshadows, and breaking white light into the colors of the spectrum (rainbow colors). The difference in thecolor of the spectrum is caused by the difference in the wavelength and frequency of the constituent rays,so that in the medium these rays have different refractive indices. Assume that the medium around the prismis air. This is called the angle of deviation. The angle of deviation is the angle formed by the intersectionof the extended incident light and the extended refracted light leaving the prism. The light beam that comesto the prism in the direction of ED will be refracted along the line DF and so on out of the prism in thedirection of FG. It is difficult for us to see or mark the red spectrum and the purple spectrum due to theinfluence of light from outside the laboratory, so we need a dark enough room to see the spectrum. Difficultyin determining the direction of the light source so that it coincides with a predetermined normal line, thelight is out of focus (a bit wide).
Comparison of Applications of Various Organic and Inorganic Fertilizers on the Growth and Yield of Cayenne Pepper I Nyoman Astika; I Gusti Nyoman Arthanawa; I Ketut Darmawan; Dewa Putu Semara Yana; Yohanes Parlindungan Situmeang; I Dewa Nyoman Sudita
Agriwar Journal Vol. 2 No. 1 (2022): Agriwar Journal
Publisher : Program Studi Magister Sains Pertanian Program Pascasarjana Universitas Warmadewa

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Abstract

Cayenne pepper is one of the agricultural commodities that has high economic value and its demand continues to increase along with the development of the population. Efforts to increase the production and quality of various types of plants continue to be carried out, by utilizing various types of fertilizers. The purpose of this study was to determine the response of growth and yield of cayenne pepper using organic and inorganic fertilizers. This research was carried out at the Experimental Garden of the Local Waste Processing Site in Kusamba Village, Klungkung Regency, and the Laboratory of the Agrotechnology Study Program, Faculty of Agriculture, Warmadewa University, Denpasar from March to November 2021. The method used in this study was experimental, using a Randomized Block Design (RBD). ) with 1 factor and 4 replications. The variables observed were plant height, number of leaves, stem diameter, number of fruit, fruit weight per plant, and fruit weight per ha. The results showed that the application of various types of fertilizers can increase all observed variables. The best fertilizer for the growth and yield of cayenne pepper is NPK fertilizer.

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