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AGRIVITA, Journal of Agricultural Science
Published by Universitas Brawijaya
ISSN : 01260537     EISSN : 24778516     DOI : https://doi.org/10.17503
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
AGRIVITA Journal of Agricultural Science is a peer-reviewed, scientific journal published by Faculty of Agriculture Universitas Brawijaya Indonesia in collaboration with Indonesian Agronomy Association (PERAGI). The aims of the journal are to publish and disseminate high quality, original research papers and article review in plant science i.e. agronomy, horticulture, plant breeding, soil sciences, plant protection and other pertinent field related to plant production. AGRIVITA is published three times per year. The Journal has been indexed in SCOPUS, Scimago Journal Ranks (SJR), Emerging Source Citation Index ( ESCI-Web of Science), EBSCO, ProQuest, Google Scholar and others international indexing. AGRIVITA is accredited first grade (Sinta 1/S1) for five years (2018-2023) based on Decree No: 30/E/KPT/2018 by Ministry of Research, Technology and Higher Education (Ristek Dikti), The Republic of Indonesia. We accept submission from all over the world. All submitted articles shall never been published elsewhere, original and not under consideration for other publication.
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Articles 17 Documents
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Search results for , issue "Vol 42, No 2 (2020)" : 17 Documents clear
Brown Planthoppers Infestations and Insecticides Use Pattern in Java, Indonesia Hermanu Triwidodo
AGRIVITA, Journal of Agricultural Science Vol 42, No 2 (2020)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v0i0.2501

Abstract

In Brown Planthopper (BPH) has caused losses of rice production in Java due to excessive use of pesticides. This research aims to determine the relationship between crop damages caused by BPH and insecticides use schemes. The pesticide use schemes by farmers were observed in 15 districts on Java which were reported for having severe BPH attacks i.e. Banyuwangi, Jember, Blitar, Kediri, Lamongan, Tuban, Bojonegoro, Pati, Demak, Pekalongan, Tegal, Klaten, Sukoharjo and Indramayu, Subang. Most of the sample plots in 15 districts were in the category of damage levels 2 and 3. Most of districts having rice plantations were affected by BPH with insecticides. Rice plants that have the highest level of damage are those with over-pesticide application. There is a significant influence between insecticide use schemes and BPH attack rates in the field. BPH attacks increase in line with the increased use of pesticides, in terms of application frequency, the various types of pesticides, and the number of sprayed mixture pesticides. Many farmers use pesticides that are prohibited for rice cultivation, such as the Pyrethroid and Organophosphate groups. However, the incidence of BPH attacks stilloccur even though there are differences in the pesticide status of legality
Amelioration of Acid Upland to Increase Soil Productivity and Soybean Yield Neneng Laela Nurida; Achmad Rachman
AGRIVITA, Journal of Agricultural Science Vol 42, No 2 (2020)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v42i2.1790

Abstract

The space between young rubber plants can be utilized for growing soybean. The aim of this study was to quantify the effectiveness of some soil ameliorants applied in combination with a reduced dosage of NPK fertilizer on soil properties and soybean yield. in a young rubber and soybean intercropped system on acid upland soil. The study was conducted in East Lampung Indonesia from April to July 2013. The plots were designed in a split-plot with three replications. The main plots were the level of NPK fertilizer recommendation dosage (100% and 75%). The subplots were soil ameliorants. The results showed that a 25% reduction of NPK did not significantly affect the soil properties and soybean yield when applied with soil ameliorants. Application of dolomite 2 t/ha and Biochar SP50 2.5 t/ha reduced soil exchangeable Al content by 25.3% and 20.8% respectively. Dolomite was the most effective to increase soil pH, whilst Biochar SP50 provided the highest soil available water pores (15.25% vol.). Soybean gave better yield when the soil was treated with dolomite, Biochar SP50, and organic fertilizer plus. Reduction in soil acidity and improvement of soil available water pores most likely were responsible factors to give better yields of soybean planted on acid soil.
5-Aminolevulinic Acid Lessened Growth Suppression in Snap Bean (Phaseolus vulgaris L.) Exposed to Shallow Water Table Haris Kriswantoro; Benyamin Lakitan; Aldes Lesbani; Andi Wijaya
AGRIVITA, Journal of Agricultural Science Vol 42, No 2 (2020)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v0i0.2308

Abstract

Shallow water table (SWT) is an acute problem in cultivating vegetables at riparian wetland during transitional period from dry to rainy season. SWT limits volume of aerobic rhizosphere and reduces oxygen availability. Meanwhile, 5-aminolevulinic acid (ALA) has been known for its effectiveness in offsetting negative effects of abiotic stresses. The aim of this study was to evaluate effectiveness of ALA application at pre- or during continuous 20-day SWT exposure in snap bean. SWT exposures were set at depth of 5 cm (SWT-5), 10 cm (SWT-10) and 15 cm (SWT-15) below substrate surface. ALA was applied at 4 days before SWT initiation (14 DAP), mid of SWT exposure period (28 DAP), or at end of SWT exposure (38 DAP). Results of this study indicated that SWT exposure affected growth of shoots and roots, leaf water status, proline content, and SPAD value in snap bean plant. Shallowest water table (SWT-5) caused the most severe effects. Effectiveness of ALA application was depended on time difference between ALA application and onset of SWT exposure. ALA application did not significantly improve recovery of snap bean plants after SWT exposure was terminated.
Plant Growth of Beetroots (Beta vulgaris L.) with Nitrogen Supply at Suboptimal Elevations in a Tropical Region S.M. Sitompul; Muhammad Roviq; Ariesta Yudha; Stepani Astrid Khesia; Nathania Julia Avyneysa; Yolanda Yolanda
AGRIVITA, Journal of Agricultural Science Vol 42, No 2 (2020)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v0i0.2667

Abstract

The present study was designed to study the possibility of beetroots to be cultivated at suboptimal elevations in the tropics. Four pot experiments were conducted in the field each at 1700, 850, 520 and 320 m asl (above sea level) in the region of Malang, East Java. A randomized block design with four replicates was used to impose the treatment of nitrogen (N) fertilizer consisting of 0, 0.4, 0.8 and 1.2 g N/plant (~ 0, 100, 200 and 300 kg N/ha). In the experiments at the elevation of 1700 m and 320 m asl, the treatment of 0 and 80 g chicken manure per plant (~ 0 and 20 t/ha) was involved. The treatment of 0 and 0.6 g P2O5 and 0 and 0.8 g K2O per plant was involved in the experiment at 850 m and 520 m asl respectively. Plant growth (total dry weight, leaf area and leaf number) was observed on day 20, 40, 60 and 90 after sowing by destructive plant samplings. In the present paper, data were reorganized to analyze the effect of elevation and N fertilizer on plant growth with the elevation as the main factor and N fertilizer as the sub factor.
Effects of Curcumin on Stability and Efficacy of Neem Leaves Extract as Botanical Insecticides Elika Joeniarti; Masfufatun Masfufatun; Noer Kumala Indahsari; Endang Noerhartati
AGRIVITA, Journal of Agricultural Science Vol 42, No 2 (2020)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v42i2.2651

Abstract

Botanical insecticides are considered biodegradable, environmentally compatible, and less toxic to non-target organisms than synthetic insecticides. Unfortunately, they are not attractive to Indonesian farmers due to its instability against light, temperature, and microbes, as well as they, have short storage time. This research was intended to produce a distinctive botanical insecticide that is resilient against the light, microbes, and durable. The role of curcumin in the stability and efficacy of neem (Azadirachta indica) leaves extract as a botanical insecticide against soybean pod sucking bug, Riptortus linearis was evaluated in the laboratory. This research was conducted at the Organic Chemistry Laboratory of Chemistry Department, Faculty of Science and Technology Airlangga University and the Plant Protection Laboratory, Faculty of Agriculture University of Wijaya Kusuma Surabaya, Indonesia, from March to October 2016. The results explained that curcumin is no effect on increase the stability of neem leaves extract solution towards UV light irradiation. However, it can increase the insecticide activity of neem leaves extract solution up to 96% mortality against soybean pod sucking bug, R. linearis. The increase of the bioactivity refers to the anti insecticidal activity of ferulic acid formed from the degradation of curcumin.
Thai Indigenous Lowland Rice Germplasms: Sources of Bacterial Blight Disease Resistance and Agronomic Attributes Menson R. Kwanwah; Tanawat Wongsa; Tidarat Monkham; Sompong Chankaew; Shanerin Falab; Jirawat Sanitchon
AGRIVITA, Journal of Agricultural Science Vol 42, No 2 (2020)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v42i2.2738

Abstract

Bacterial blight (BB) has caused significant reductions in yield and quality of rice. The use of genetically resistant cultivars has proven to be one of the most effective methods used to address this problem. This study screened a total of 333 Thai lowland indigenous rice germplasms against four Xanthomonas oryzae pv. oryzae (Xoo) isolates under greenhouse conditions in the rainy and dry seasons of 2017. The ten varieties demonstrating the greatest BB resistance in the lower five centimeters of the lesion lengths in both experiment years were further investigated and validated for their agronomic performances in field conditions at the Udon Thani Rice Research Center in 2018. Our findings revealed that of the ten BB resistant lowland rice varieties, five varieties; LLR023, LLR134, LLR137, LLR205 and LLR207, exhibited high performances of agronomic traits in field conditions; as found in the plant height, tiller number, panicle number, panicle length, seeds per panicle, grain yield and harvest index when compared with the KDML105 check varieties. These five selected rice varieties may further serve as new genetic resources for future BB resistance and agronomic trait improvement programs.
Intercropping Farming System and Farmers Income Muhammad Arsyad; Yusmiati Sabang; Nurariaty Agus; Sitti Bulkis; Yoshio Kawamura
AGRIVITA, Journal of Agricultural Science Vol 42, No 2 (2020)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v42i2.2724

Abstract

Agriculture cultivation systems and farmer’s income are the crucial issues in many agriculture-based developing countries. Our previous study proved that the polyculture system positively affects land productivity and land-use efficiency. This research investigated the relationship between intercropping farming systems and farmer’s income. We hypothesized that the intercropping farming system increases farmer’s income compared to monoculture. The farming income analysis was carried out using Microsoft Excel and STATA software. The results showed that the farmer’s income derived from the intercropping farming system differs from monoculture. Based on the T-test, the intercropping farming system provided a higher income. Intercropping farming systems that have higher plant diversity, contributed to higher farmer income from different plant yields. Farmers that applied the intercropping system would harvest of 2-3 different plants from one cultivated land at the same time with regular planting distance. These indicated that the intercropping farming system reduces the risk of loss due to price fluctuations of products and the higher input costs during the production process.

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