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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 58 Documents
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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

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/aj.2.1.2022.14-18

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

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/aj.2.1.2022.19-27

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

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/aj.2.1.2022.28-36

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.
The Effect of Compost and Biochar Fertilizers on The Growth and Yield of Shallots Robinson Ama Dangu Ngindi; I Gusti Bagus Udayana; Yohanes Parlindungan Situmeang
Agriwar Journal Vol. 2 No. 2 (2022): Agriwar Journal
Publisher : Program Studi Magister Sains Pertanian Program Pascasarjana Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/aj.2.2.2022.37-43

Abstract

This study aims to determine the effect of compost and biochar doses and their interactions on the growth and yield of shallots. This research was conducted at the Local Waste Processing Site (TOSS), Kusamba Village, Dawan District, Klungkung Regency, Bali Province. The design used in this study was a factorial randomized block design (RAK) consisting of 2 factors. The first factor is the treatment of compost dose (K) which consists of 3 levels, namely: K1 = 5 tons ha-1, K2 = 10 tons ha-1, and K3 = 15 tons ha-1. While the second factor is the dose of biochar (B) which consists of 3 levels, namely: B1 = 5 tons ha-1, B2 = 10 tons ha-1, and B3 = 15 tons ha-1. The interaction between compost treatment with biochar had a significant (P<0.05) effect on the fresh weight of tubers per clump and fresh weight of rhizomes per clump, and a very significant effect (P<0.01) on the number of tubers per clump, but not significant (P≥0.05) to other variables. The compost dose treatment had no significant effect (P≥0.05) on all observed variables except for the maximum number of leaves. Biochar dose treatment had a significant to a very significant effect on the variables of maximum leaf number, fresh weight of tubers per clump, the oven-dry weight of tubers per clump, and oven-dry weight of tubers per clump, and had no significant effect (P≥0.05) on other variables. The interaction between compost 5 tons ha-1 and biochar 10 tons ha-1 (K1B2) gave the highest fresh weight of tubers per clump of 100.00 g which was significantly different or increased by 38.60% compared to the lowest fresh weight of tubers per clump at the interaction of compost 5 tons ha-1 with biochar 15 tons ha-1 (K1B3) is 72.15 g.
Effect of Male Mating Time on Landrace Pig Reproduction Stefanus Nahak; I Dewa Nyoman Sudita
Agriwar Journal Vol. 2 No. 2 (2022): Agriwar Journal
Publisher : Program Studi Magister Sains Pertanian Program Pascasarjana Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/aj.2.2.2022.44-48

Abstract

Pig livestock is one of the livestock developed in Indonesia because it can adapt to environmental conditions, has good production and reproduction properties including fast growth so that the body matures and quickly, the number of liters of labor size is large, birth weight and weaning weight are high, meat production is high and can also meet human needs. To meet human needs for protein and the economy, it is necessary to increase the production and productivity of pig livestock by paying attention to reproductive aspects, and nutrition. This study aims to determine the influence of the time interval of male mating in nature which affects the conception rate, liter size, and mortality. This research was carried out in Catur Village, Kintamani District, Bangli Regency from April to August 2022. This study uses a quantitative descriptive method by mating males at time intervals and observing the results directly. The number of livestock used in this study was 6 landrace sows consisting of 1 sow mated with males at intervals of once a week, 2 heads mated at intervals twice a week, and 3 heads mated at intervals of three times a week. The variables observed in this study were conception rate, liter size, and mortality. The results showed that the interval of mating time influenced the conception rate value and the number of liters of size. The best interval from the results of this study is one mating in a week, namely a conception rate of 100%, the number of liters size 9 heads. And the time interval of mating has no effect on the mortality of the child at birth.
The Effect of Compost and NPK Fertilizers on The Growth and Yield of Shallots Antonius Petrus Lalu Mato; Yohanes Parlindungan Situmeang; Ida Bagus Komang Mahardika
Agriwar Journal Vol. 2 No. 2 (2022): Agriwar Journal
Publisher : Program Studi Magister Sains Pertanian Program Pascasarjana Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/aj.2.2.2022.49-54

Abstract

This study aims to determine the effect of compost fertilizer and NPK fertilizer on the growth and yield of Shallots. This research was conducted at the Local Waste Processing Site, Kusamba Village, Klungkung. This experiment used a randomized block design (RBD) with a factorial pattern consisting of 2 factors. The first factor was the dose of compost (T) consisting of 3 levels, namely: 5-ton ha-1 (T1), 10-ton ha-1 (T2), and 15-ton ha-1 (T3). The second factor is the dosage of NPK fertilizer (M) consisting of 3 levels: (M1) 150 kg/ha-1, (M2) 300 kg/ha-1, (M3) 450 kg/ha-1. The interaction between compost treatment and NPK had a significant (P<0.05) to very significant (P<0.01) effect on all observed variables except fresh weight per clump. The highest fresh weight of tubers was obtained from the interaction between compost 5 tons ha-1 and NPK 150 kg ha-1 (T1M1) giving the highest fresh weight of tubers per clump, 41.44 g, significantly different or an increase of 45.13% compared to the fresh weight of tubers. The lowest per clump was the interaction of 15-ton ha-1 compost with NPK 450 kg ha-1 (T3M3), which was 31.25 g.
Business Strategy of Layer Chicken Business in the New Normal Era in The Bali Province Dewa Putu Semara Yana; Nyoman Suparta; I Gusti Agus Maha Putra Sanjaya
Agriwar Journal Vol. 2 No. 2 (2022): Agriwar Journal
Publisher : Program Studi Magister Sains Pertanian Program Pascasarjana Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/aj.2.2.2022.55-60

Abstract

This study aims to provide a business strategy for laying hens in the New Normal era in the Province of Bali. This research is expected to produce recommendations for the right strategy to be applied to laying hens in the Province of Bali to help farmers face the New Normal era and able to increase breeders' income. This research was conducted in 3 central districts of laying hens in Bali Province using a survey method. The research location was determined by purposive sampling technique. The results of the IFAS-EFAS analysis showed an internal factor value of 3.65 and an external factor value of 3.31 indicating the position of the laying hen business in Bali Province is in quadrant I, namely growth and build strategy. Alternative strategies that need to be increased more intensively are: 1) Expansion of market share outside Bali (West Region to Jakarta and Eastern Region to East Nusa Tenggara), 2) Expansion of business scale by increasing capital, 3) Selecting less productive laying hens.
Application of Organic Coal Fertilizer and Rabbit Farm Waste on Pumelo (Citrus grandis L. Osbeck) Seed Growth Ida Bagus Komang Mahardika; Made Sri Yuliartini; I Gusti Made Arjana
Agriwar Journal Vol. 2 No. 2 (2022): Agriwar Journal
Publisher : Program Studi Magister Sains Pertanian Program Pascasarjana Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/aj.2.2.2022.61-68

Abstract

The pumelo population in Bali is declining one is caused of a lack of good-quality seeds. This research was conducted to determine the effectiveness of organic coal fertilizer and rabbit farm waste as organic fertilizers for the growth of pomelo grafting seedlings. The research design used a nested pattern randomized block design with 3 replications. There are two factors, the first factor is the type of fertilizer, which are Coal fertilizers, Rabbit Farm Waste fertilizers, and Cow Manure fertilizers. The second factor is the dose of each type of fertilizer which consists of 3 levels, namely: 10 tons/ha; 20 tons/ha; and 30 tons/ha. The results showed that the effectiveness of the treatment of the type of organic fertilizer and the dose of the type of organic fertilizer had no significant effect on all observed variables. This shows that both coal fertilizer and rabbit manure have almost the same quality as cow manure in influencing the growth of pomelo seedlings. The effectiveness of fertilizers tested on the average shoot length of grafting tends to show the highest yields obtained at the highest dose (30 tons/ha), namely Coal fertilizer which is 28.80 cm, rabbit manure is 31.87 cm, and cow manure obtained is 28.13 cm.
Application of Swallow Fertilizer Combined with NPK Fertilizer on the Growth and Yield of Cucumber Plants I Putu Adi Masaji; Yohanes Parlindungan Situmeang; Ni Putu Anom Sulistiawati
Agriwar Journal Vol. 3 No. 1 (2023): Agriwar Journal
Publisher : Program Studi Magister Sains Pertanian Program Pascasarjana Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to determine the dosage of Swallow fertilizer and the dose of NPK fertilizer on the growth and yield of cucumber plants. This study used a randomized block design (RBD) in a factorial pattern with 2 treatment factors, namely: The first factor was swallow fertilizer consisting of 4 treatment levels, namely: without fertilizer, 10 tons ha-1, 20 tons ha-1, 30 tons ha-1, The second factor is NPK fertilizer consisting of 4 treatment levels, namely: without fertilizer, 150 kg ha-1, 300 kg ha-1, and 450 kg ha-1. Treatment of swiftlet fertilizer doses showed a significant to a very significant effect on all variables observed except for fruit dry weight per plant which had no significant effect. The highest yield of fresh fruit weight reached 732.67 g obtained in the swiftlet fertilizer treatment of 30 tons ha-1. NPK fertilizer dose treatment showed a very significant effect on all observed variables except for the variable cucumber flower exit time, cucumber fruit exit time, fruit dry weight per plant, and dry fruit weight per plant had no significant effect. The yield of fresh fruit weight reached 665.57 g obtained in the NPK fertilizer treatment of 150 kg ha-1. The interaction between swiftlet fertilizer dose and NPK fertilizer dose showed results that had a significant to a very significant effect on all variables observed except for the non-significant effect obtained on the cucumber fruit discharge time and fresh fruit weight per plant. Recommendations for swiftlet fertilizer 30 tons ha-1 and NPK fertilizer 150 kg ha-1 can be used to increase cucumber yields. Keyword: Organic fertilizer, swallow droppings, NPK fertilizer, cucumber.
Substitution of Fermented Coffee Skin in Commercial Feed and Addition of Alkaline Water on The Growth of Super Local Chicken Marselina Ngongo Thomas Ngongo Dairo; I Dewa Nyoman Sudita; Ni Made Ayu Gemuh Rasa Astiti
Agriwar Journal Vol. 3 No. 1 (2023): Agriwar Journal
Publisher : Program Studi Magister Sains Pertanian Program Pascasarjana Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to determine the effect of using fermented coffee husks as substitute feed and at what level it affects the growth of super-free-range chickens. The research method was carried out using a completely randomized design factorial pattern consisting of 2 factors. The first factor consisted of 3 treatments of fermented coffee skin substitution, namely: K0 = 100% commercial feed, K1 = 95% commercial feed + 5% substitute for fermented coffee skin, K2 = 90% commercial feed + 10% substitute for fermented coffee skin. The second factor consisted of 2 treatments of giving drinking water, namely: A0 = without giving alkaline water, A1 = giving alkaline water with a concentration of 20% in drinking water. The results showed that the substitution of fermented coffee skin on commercial feed had a significant effect on body weight gain in the fifth week. Meanwhile, weight gain at weeks 1, 2, 3, 4, 6, and final weight had no significant effect. Carcass weight and carcass composition had no significant effect but the K1 treatment always gave the highest average. The treatment with alkaline water had no significant effect, the average weight gain was always higher in treatment A1. Based on the results of the study, it can be concluded that the substitution of fermented coffee husks in commercial feed for free-range chicken had a significant effect on body weight gain in the fifth week, but on other variables such as final weight and composition of carcass parts had no significant effect. Meanwhile, the addition of alkaline water and without alkaline water had no significant effect, but the addition of alkaline water had a higher average value for both growth and carcass parts. Substitution of fermented coffee skin on commercial feed as much as 5% showed better results than without substitution and 10% substitution. Keywords: Fermented Coffee Skin, Alkaline Water, super local chicken

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