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Akta Agrosia

Agrosia
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Published by Universitas Bengkulu

ISSN : 14103354 EISSN : 26157136 DOI : https://doi.org/10.31186/aa

Core Subject : Agriculture,

Agriculture, Biological Sciences & Forestry

Akta Agrosia is dedicated to researchers or academics who intent on publishing research, scientific thinking, or other scientific ideas. The articles published in the Akta Agrosia are the author’s original works covering on Crop Production, Crop Physiology, Pest and Disease, Soil Science, Agronomy, Plant Genetics, Plant Breeding, Plant Biotechnology. Akta Agrosia is published by the Department of Crop Production, Faculty of Agriculture, University of Bengkulu, biennially in June and December. ISSN:1410-3354 (printed media) and eISSN: 2615-7136 (online media).

Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Agronomi dan Ilmu Tanaman

Articles 95 Documents

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Pertumbuhan Vegetatif Talas Satoimo dan Kultivar Lokal pada Dosis Pupuk Nitrogen yang Berbeda Yulian Yulian; Edhi Turmudi; Kanang S. Hindarto; Hendri Bustamam; Juwita Noventina Hutajulu
Akta Agrosia Vol 19, No 2 (2016)
Publisher : Faculty of Agriculture, The University of Bengkulu

Taro (Colocasia esculenta L. Schott) is a plant that has an excellent economic and healthy value, as well as a great potential development of Bengkulu coastal area. That is because taro has wide adaptability, and can be consumed both as a staple food and healthy food alternative. This research was conducted to study the vegetative growth of two cultivars of taro given four different doses of nitrogen. This study applied a Randomized Complete Block Design (RCBD) with two factors. The first factor was the cultivar of taro consisted of two levels, namely Taro Satoimo (T1) and the Taro Local (T2). The second factor was the doses of nitrogen fertilizer which consisted of four levels namely: N0 = 0 kg / ha (control), N1 = 50 kg / ha (2.6 g, N2 = 100 kg / ha, and N3 = 150 kg / ha. Thus, obtained eight treatment combinations. Each treatment was repeated three times to get 24 plots. The results showed that based on increased vegetative growth, the cultivar Satoimo has a faster response than local cultivar. Satoimo has demonstrated another advantage because it produced some leaves and number new shoot. The best dose of nitrogen fertilizer on the vegetative growth of taro in the coastal area of Bengkulu is 150 kg/ha.

Pertumbuhan dan Hasil Tanaman Selada pada Tiga Jenis Tanah Mineral dengan Pemberian Dosis Pupuk Kandang Sapi yang Berbeda Dian Pramana Putra; Merakati Handajaningsih; Riwandi Riwandi; Fahrurrozi Fahrurrozi
Akta Agrosia Vol 19, No 2 (2016)
Publisher : Faculty of Agriculture, The University of Bengkulu

Growing lettuce on lowland mineral soil is an alternative to increase lettuce production. Mineral soil with less fertile soil property needs additional organic matter when it is used as growing medium for lettuce plants . The purpose of this study was to evaluate the growth and yield of lettuce on some mineral soil types and different doses of cow manure. The research was conducted in Surabaya village, Sungai Serut District, Bengkulu City. The experiment used a completely randomized design, two factors, five replications. The first factor was the three types of mineral soils, consisted of Inceptisol, Ultisol and Entisol. The second factor was dose of cow manure, consisted of 0 ton/ha, 5 ton/ha (7.065 g/polybag), 10 ton/ ha (14.13g/polybag), and 15 ton/ha (21.19 g/polybag ). Each combination was repeated 5 times in order to obtain 60 experimental units. The results showed that the mineral Ultisol generally resulted in better growth of lettuce plants than it was at Inceptisol and Entisols, which were indicated by the higher degree of the leaf greenness leaves, root fresh weight and shoot fresh weight. Dosage of fertilizer up to 15 tonnes/ha significantly increased shoot fresh weight and root fresh weight of plants. The interaction between soil types and doses of cow manure occured only on the variable of root fresh weight when it was grown on Ultisol with dose of cow manure at 8.07 tonnes/ha.

Growth and Yield of Lettuce (Lactuca sativa L.) by Giving Cow Manure and Empty Palm Oil Bunch Fertilizer on Peat Soil Yedija Manullang; Reny Herawati; Merakati Handajaningsih; Dwi Wahyuni Ganefianti; Eka J.V. Haquarsum; Mimi Sutrawati
Akta Agrosia Vol 23, No 2 (2020)
Publisher : Faculty of Agriculture, The University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/aa.23.2.39-46

Lettuce (Lactuca sativa L.) is a horticultural plant that is beneficial for health. Efforts are being made to expand the plant area. One of them is by utilizing marginal land such as peatlands. Peatlands in Indonesia are the most extensive soils in various tropical countries in the world that have low soil fertility and high acidity so that they are not optimal for lettuce growth. The provision of organic material can increase soil fertility by improving physical, chemical, and biological soil properties so that it can support lettuce growth. This study aims to determine the dose of cow manure and the dosage of oil palm empty fruit bunch fertilizer and the optimal dose interaction for growth and yield of lettuce. This research was conducted from June 2019 to August 2019 in Bengkulu City. This study uses a Completely Randomized Design consisting of two factors, which are repeated three times. The first factor is the dose of cow manure with three levels, namely: 0 tons ha-1, 15 tons ha-1, and 30 tons ha-1. The second factor is the dose of oil palm empty fruit bunch fertilizer, which consists of four levels, namely 0 tons ha-1, 5 tons ha-1, 10 tons ha-1, and 15 tons ha-1. The results showed that the dosage of cow manure 15 tons ha-1 and without the application of empty fruit bunches fertilizer gave the best results in leaf length of 18.674 cm. The best dose of cow manure for growth and yield of lettuce is 15 ha-1. The application of OPEFB fertilizer has not been shown to affect the growth and yield of lettuce.

Application of Organic Fertilizer in Sidenuk Varieties to Reduce Using Urea Nurrobifahmi Nurrobifahmi; Anggi Nico Flatian; Taufiq Bachtiar; Ania Citraresmini; Muftia Hanani; Sudono Slamet
Akta Agrosia Vol 24, No 1 (2021)
Publisher : Faculty of Agriculture, The University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/aa.24.1.1-8

Sidenuk rice is a superior rice variety produced by BATAN through a radiation mutation technique. The new varieties that have been produced need to be supported by efforts to optimize production through fertilization technology. The purpose of this study was to determine the effect of organic fertilizer which can increase growth, production and reduce the use of urea fertilizer in lowland rice optimally. The study was conducted using a completely randomized design. Each was repeated 4 times so that the total experimental unit (pot) was 32 rice pots. The treatments include (1) Control (without urea fertilizer), (2) Control (+) 100% urea, (3) 50% urea, (4) Local microorganisms (MOL), (5) Compost, (6) Biochar , (7) Azolla, (8) Mol + Compost + Biochar + Azola + SP 36 and KCl. The results showed that the highest grain weight was found in the 100% urea treatment, which was 43.97 g plant-1. MKBA treatment (MOL fertilizer, compost, biochar, azolla) showed values that were not significantly different from 100% urea treatment. Organic fertilizer formula (MOL fertilizer, compost, biochar, azolla) can reduce the use of urea fertilizer by 50%.

Liquid Tobacco Smoke Concentration Test Against the Intensity of Stem Borer (Chilo saccharipagus) Attack on Sugar Cane Dyah Roeswitawati; Nindy Nidya; Dian Indratmi; Heri Prabowo
Akta Agrosia Vol 23, No 2 (2020)
Publisher : Faculty of Agriculture, The University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/aa.23.2.72-76

One of the most harmful pests of sugar cane is the Chilo sacchariphagus striped stem borer because it causes a decrease in the quality and quantity of sugar cane. Scratched wounds can be a place of infection of various pathogens so that it can result in fatal losses that can cause the death of sugar cane plants. The purpose of this study was to determine the concentration of tobacco liquid smoke that precisely suppressed the attack of striped stem borer. The study was conducted in the Experimental Garden Sweetener and Fiber Crops Research Institute Malang in May to September 2018. The study was conducted using a randomized block design with 3 replications. The treatments consist of: concentration of tobacco liquid smoke: 10 ml / l, 8 ml / l, 6 ml / l, 4 ml / l, 2 ml / l, Diafentiuron concentration 2 ml / l (negative control), and without treatment. Spraying of liquid tobacco smoke is done every 2 weeks. The results showed that the treatment of tobacco liquid smoke concentration had no significant effect on the intensity of the striped stem borer attack, but the number of sugar cane tillers and sugar content showed a significant effect

Pengujian Berbagai Tipe Tanam Jajar Legowo terhadap Hasil Padi Sawah Dia Novita Sari; Sumardi Sumardi; Eko Suprijono
Akta Agrosia Vol 17, No 2 (2014)
Publisher : Faculty of Agriculture, The University of Bengkulu

Planting wetland paddy by setting row space could be a method to increase rice production. Legowo system is row planting method where we are able to apply different row types on paddy field. The objective ofthis research was to identify the best row planting type of ‘Jajar Legowo’ on growth and yield of wetland paddy. Six row plantings, including 2:1 type (means 2 rows are splited by wide space/ legowo), 3:1 type, 4:1 type, 5:1type, 6:1 type, and 7:1 typ, were tested in a Randomized Complete Block Design with 3 replications Results of the experiment revealed that the highest growth and yield as showed by total number of tillers (28), number ofproductive tillers (25), dry-mill rice (66.16 g per plant), and yield difference of dry-mill rice (50.43% per plot) was found at row planting type 2:1. Therefore, row planting type 2:1 can be selected as the best row.

Growing Caisim (Brassica juncea L.) Using Elaeisponic Production System Yusrian S.O. Yanda; Fahrurrozi Fahrurrozi; Supanjani Supanjani
Akta Agrosia Vol 21, No 2 (2018)
Publisher : Faculty of Agriculture, The University of Bengkulu

Elaeisponic is new introducing growing technique to produce vegetables by planting it in the frond based of oil palm trees (Elaeis guineensis Jacq.). However, there was no previous report on vegetable production by using elaeisponic production system, including the use of foliar fertilizers. This study aimed to determine the optimum consentrations and frequency of foliar fertilization for caisim grown in elaesisponic production system. An experiment was conducted in oil palm plantation area by using a factorial randomized complete block design with three replicates. The first factor of treatment consisted of three levels of foliar fertilizer concentration, 1 g l-1, 2 g l-1 and 3 g l-1, and the second factor was application frequency of foliar fertilizer, 7 days after transplanting (DAT), 7, 14 DAT and 7, 14, 21 DAT. Crop responses were determined on leaf greenness (SPAD index), shoot fresh weight (g), root fresh weight (g), leaf area (cm2) and plant dry weight. Results indicated that both concentration of foliar fertilizer and frequency of application as wells as its interaction did not significatly affect leaf greenness, leaf area, shoot fresh weight, root fresh weight and plant dry weight of caisim plants. Further research should be addressed on optimizing the use of palm oil frond bases as growing medium for vegetable production. Keywords: Elaeisponic Production System; Brassica juncea L; Foliar Fertilizer; Frequency of Application.

Penampilan Morfologis Galur-Galur Harapan Kedelai Hasil Persilangan Varietas Malabar dan Kipas Putih Amin Nugroho; Dotti Suryati; Mohammad Chozin
Akta Agrosia Vol 18, No 2 (2015)
Publisher : Faculty of Agriculture, The University of Bengkulu

The increasing demand for soybean is driven by population growth and development of industry. The current import of soybean should be considered as pragmatic solution to fill the gap between supply and demand. In the long term, the domestic production of soybean has to be increased to minimize the dependency on imported soybean. As part of soybean breeding program for yield improvement, this study was undertaken to evaluate the performances of five elite lines (11 AB, 13 ED, 14 DD, 19 BE, and 25 EC) derived from cross of Malabar and Kipas Putih as compared to their parental varieties and Tanggamus (commercial variety). The evaluation was set up in a completely randomized block design with three replications. Significant variations among the genotypes were found on plant height, flowering date, number of fertile node, hundred seed weight, plant biomass, and protein and lipid contents, but not on number of productive branch, maturity date, pod number, yield per plant, and yield per plot. In most cases, the evaluated lines had intermediary performances between their parental varieties, although some lines produced earlier flowering, larger seed, higher protein content, and lower lipid content. 11 AB exhibited a superiority over its parental and Tanggamus in term of plant biomass and protein content.

Keragaman Genetik, Heritabilitas dan Korelasi Antar Karakter Tanaman Tomat di Dataran Rendah Helfi Eka Saputra; Muhamad Syukur; Syarifah Iis Aisyah
Akta Agrosia Vol 18, No 2 (2015)
Publisher : Faculty of Agriculture, The University of Bengkulu

The main problem in the cultivation of tomato plants in Indonesia are not available varieties of potentially high yield, good fruit quality and can adapt well to the low altitude. Therefore, the assembly of superior varieties of tomatoes low altitude are needed. Research objective is to determine the genetic diversity, heritability and determine the relationship between the characters for the assembly of tomato varieties are high yielding lowland. The experiments were performed using the Randomized Complete Block Design the single factor that genotype by 20 with three replications. The results showed there are six characters that have a broad genetic diversity and high heritability, namely plant height, leaf length and width, number of fruits per plant, fruit length and width. Correlation analysis between characters indicate the number of fruits per plant suitable for use as a character selection for yield potential. Number of fruits per plant of the highest owned by IPB T23. Fruit weight per plant of the highest owned by IPB T 1.

Identification of Pests and Natural Enemies of Mulberry Plants in Two Varieties at Rumah Sutera Alam Ciapus, West Java Adrian Triandi; Nadzirum Mubin; Lia Nurulalia
Akta Agrosia Vol 24, No 1 (2021)
Publisher : Faculty of Agriculture, The University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/aa.24.1.9-18

Mulberry plant (Morus alba) is a plant that has social and economic importance. This plant development is often done to harvest the fruit and leaves. The social importance can be found in that this plant, especially in its leaves, is used in silkworm feed (Bombyx mori) and then silk is used in traditional clothes in Indonesia. Cultivation of mulberry plant (leaves and fruit) ideally by Integrated Pest Management (IPM) is necessary so that mulberry plants grow ideally and leaves have high quality and quantity without becoming a source of inoculum for pests and diseases of silkworm maintenance. Mulberry cultivation is generally carried out without using pesticide input so it is interesting in monitoring pests and natural enemies in the mulberry ecosystem. The research was conducted on two varieties of mulberry plants, namely Morus alba var. Kanva-2 and Morus cathayana in the same agroecosystem. Observation of pests and natural enemies was carried out using yellow sticky traps (YST) and pitfall traps (PFT). The orders and families found in the two varieties showed acroceridae family of 37.81% in the YST and hypogastruridae family with a value of 83.76% in the PFT observation.Keywords: IPM, Morus alba, natural enemies, pest, trapping.

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Contact Name Merakati Handajaningsih

Contact Email Merakati Handajaningsih

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Editorial Address Dept of Crop Production Faculty of Agriculture, University of Bengkulu WR Supratman St. Kandang Limun, Bengkulu 38371

Location Kota bengkulu, Bengkulu INDONESIA

Abstract

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Contact Name
Merakati Handajaningsih

Contact Email
Merakati Handajaningsih

Phone
+62818871578

Journal Mail Official
aktaagrosia@unib.ac.id

Editorial Address
Dept of Crop Production Faculty of Agriculture, University of Bengkulu WR Supratman St. Kandang Limun, Bengkulu 38371

Location
Kota bengkulu,

Bengkulu

INDONESIA