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Darwin H Pangaribuan
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Journal of Agriculture and Applied Biology ( JAAB)
Published by Future Science
ISSN : -     EISSN : 27235106     DOI : https://doi.org/10.11594/jaab
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Journal of Agriculture and Applied Biology (J. Agric. Appl. Biol.) is striving to disseminate recent techniques and applications in agriculture and applied biology for researchers, students, and scholars in research institutes and universities worldwide. Journal focuses on crops, from seed to quality, growing under the tropical zones The journal publishes articles that report recent findings in the following areas: Seed Science and Technology Agronomy & Horticulture Agrotechnology Ecophysiology Crop Protection Soil Fertility & Organic Farming Land Use & Land Evaluation Sustainable Agriculture. Plant-Microbe Interactions Plant Biology Plant Biotechnology Agrobiodiversity Agroforestry Biosciences Biopharmaca Agroindustry Agricultural Engineering Postharvest Physiology & Technology Product Quality
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 118 Documents
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Methane emission and rice growth on clayey soil under controlled water regime Kaharuddin Kaharuddin; Sikstus Gusli; Muh Jayadi; Amirullah Dachlan; Andi Muh. Ilham
Journal of Agriculture and Applied Biology Vol 3 No 2 (2022): Journal of Agriculture and Applied Biology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jaab.03.02.05

Abstract

Conventional lowland rice cultivation involves flooding the paddy from planting to close to harvest, and high N fertilization. This practice leads to large amount of methane emissions. We studied the effect of soil water regime control on methane gas emissions and growth of several rice varieties on clayey soil. The experiment was arranged according to Split Plot Design. The main plot was water regime, i.e. continuous flooding (2-cm inundation), and intermittent flooding (flooded 2 cm then allowed to dry until the soil started to cracks). The sub-plots consisted of 3 rice varieties, i.e. Inpari 32, Mekongga, and Cisadane. Together, there were six treatment combinations, repeated 4 times. We measured methane emission, plant height, number of tillers per clump, number of productive tillers, and root volume. We computed analysis of variance, then performed Duncan Multiple Range Test. We found, at 57 and 73 days after planting, continuous flooding resulted in much (statistically) higher methane gas emissions than intermittent flooding (about 2 times greater for both Inpari and Cisadane, and 5 times greater for Mekongga). The two water regimes examined did not result in differences in plant height, number of tillers, productive tillers and root volume of the three varieties, although the flooded treatment tended to slightly give taller plant, more tillers and productive tillers. In conclusion, intermittent flooding significantly suppresses methane emission compared to continuous flooding. However, certain rice variety produces more methane than others. While intermittent flooding reduced methane emission, it did not statistically affect rice growth compared to continuous flooding.
Performance of different mulching materials on soil moisture content, weed infestation and growth of maize (Zea mays L.) Zin Mar Aung Aung; Thu Zar; Aung Zaw Htwe; Lwin Thuzar Nyein; Htay Htay Oo
Journal of Agriculture and Applied Biology Vol 3 No 2 (2022): Journal of Agriculture and Applied Biology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jaab.03.02.03

Abstract

Two field experiments were conducted at Yezin farm and Sepin research farm, Yamenthin, Myanmar to investigate the effect of different mulching materials on growth, soil moisture and weed infestation of maize and to identify the most Two field experiments were conducted at Yezin and Sepin research farms, Yamethin, Myanmar to investigate the effect of different mulching materials on growth, soil moisture and weed infestation of maize and to identify the most suitable mulching materials for maize cultivation in the study areas during the dry season (October, 2019 to March, 2020). The experiments used randomized complete block design (RCB) with three replications. No mulching and six mulching materials, including rice straw mulching, rice husk mulching, maize stover mulching, mung bean stover mulching, soybean stover mulching and white plastic polyethylene mulching were tested. NK-621 (120 days) was used as the tested variety. Different mulching materials showed higher plant height and SPAD value than no mulching whereas rice straw mulching was highest at both locations. The highest LAI was achieved from rice straw mulching at Yezin. At Yamethin, the maximum LAI (2.19) was recorded from rice straw mulching at maximum growth stage (MGS), LAI (2.71) observed from maize stover mulching at tasseling stage (TS). The maximum crop growth rate (CGR) (13.31 gm-2day-1) was achieved from rice straw mulching at Yezin and (14.19 gm-2day-1) at Yamethin. Soil moisture content and weed infestation were significantly different among different mulching materials at two locations. White plastic polyethylene mulching and rice straw mulching were observed as the most suitable for soil moisture content and minimal weed infestation. According to the results, rice straw mulching is the best in all parameters among the treatments for Yezin and Yamethin areas. suitable mulching materials for maize cultivation in the study areas during the dry season (October, 2019 to March, 2020). The experiments were assigned by using randomized complete block design (RCB) with three replications. A total of seven treatment; no mulching (T1) and six mulching materials including rice straw mulching (T2), rice husk mulching (T3), maize stover mulching (T4), mung bean stover mulching (T5), soybean stover mulching (T6) and white plastic polyethylene mulching (T7) were tested. The most widely sown variety, NK-621 (120 days) was used as the tested variety. Different mulching materials showed higher plant height and SPAD value than no mulching whereas rice straw mulching (T2) was highest at both locations. At three sampling times, the highest LAI was achieved from rice straw mulching (T2) at Yezin. At Yamenthin, the maximum LAI (2.19) was recorded from rice straw mulching at maximum growth stage (MGS), LAI (2.71) observed from maize stover mulching (T4) at tasseling stage (TS) and LAI (2.00) achieved from white plastic polyethylene mulching (T7) at grain filling stage (GFS). The maximum crop growth rate (CGR) (13.31 gm-2day-1) was achieved from rice straw mulching (T2) at Yezin and (14.19 gm-2day-1) at Yamenthin. Soil moisture content and weed infestation were significantly different among different mulching materials at two locations. White plastic polyethylene mulching and rice straw mulching were observed as the most suitable for soil moisture content and minimal weed infestation. According to the results, rice straw mulching is the best in all parameters among the treatments for Yezin and Yamenthin areas.
Composition, structure, and level of weed diversity in oil palm plantation in Pagar Merbau Village, Tanjung Morawa, Indonesia Rama R. Sitinjak
Journal of Agriculture and Applied Biology Vol 3 No 2 (2022): Journal of Agriculture and Applied Biology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jaab.03.02.06

Abstract

Weed vegetation growth affects the growth and production of oil palm plants. To control weeds in plantation land, especially by using herbicides or bioherbicides, weed vegetation analysis is needed. This research was conducted to determine the composition, structure, and level of diversity of weeds in oil palm plantations owned by the community of Pagar Merbau village, Tanjung Morawa District. The method used is a descriptive method with sampling technique done by porposive sampling. The results of the analysis showed that weeds found were 7 families, 10 species, and 3153 individuals. Weed species found were: Clidemia hirta, Borreria alata, Mimosa invisa, Setaria barbata, Ageratum conyzoides, Paspalum conjugatum, Ottochloa nodosa, Cyclosorus aridus, Calopogonium mucudoines, Ophioglossum reticulatum. Ottochloa nodosa is a type of weed that has the highest importance value index 66.52% (1323 individuals) and Setaria barbata is a type of weed that has the lowest important value index of 1.00% (4 individuals). Weed diversity index in this oil palm plantation is in the moderate category (H '= 1.3741). The weed control system to be carried out in this oil palm plantation must consider the dosage and types of herbicides and bioherbicides used so that it does not have the potential to reduce the level of diversity of weeds of grass or broadleaf weeds.
Mulching as soil moisture conservation to improve physiological traits in maize (Zea mays L.) Zin Mar Aung; Thu Zar
Journal of Agriculture and Applied Biology Vol 3 No 2 (2022): Journal of Agriculture and Applied Biology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jaab.03.02.07

Abstract

Field experiments were conducted at Yezin farm and Sepin research farm, Yamethin, Myanmar to study the effect of different mulching materials on percent reduction of soil moisture content and physiological traits in Yezin and Yamethin. Randomized complete block design (RCB) was used with three replications from October, 2019 to March, 2020. Rice straw mulching (T2), rice husk mulching (T3), maize stover mulching (T4), mung bean stover mulching (T5), soybean stover mulching (T6) and white plastic polyethylene mulching (T7) and no mulching (T1) were tested with NK-621, variety. At Yezin, the minimum percent reduction of soil moisture content (45.89) was obtained from T2 and (76.79, 58.07) was resulted in T7 whereas the maximum percent reduction of soil moisture contents (76.93, 89.00, 83.93) were recorded from T1 at 14 DAI (Days after irrigation). At tasseling stage, the maximum photosynthesis rates (20.45 µmol m-2s-1) and (21.59 µmol m-2s-1) were observed from T2 at Yezin and Yamethin. At two locations, the maximum stomatal conductance (158.36 mmol m-2s-1) and (204.44 mmol m-2s-1) was observed from T2 at maximum growth stage. At maximum growth stage, the maximum SPAD values (33.90) and (53.98) were obtained from T6 at Yezin and T2 at Yamethin. The maximum five ears weight (1830.6 g) was recorded from rice straw mulching whereas the minimum five ears weight (1326.0 g) was resulted from no mulching at Yamethin. According to the results, rice straw mulching resulted in the highest physiological traits of maize, and white plastic polyethylene mulching recorded the minimum percent reduction of soil moisture content at Yezin and maize stover mulching at Yamethin.
Evaluation of single cross maize hybrids during the spring season in Khairahani, Chitwan, Nepal Khushubu Rai; Oshna Kulung; Sudha Bhandari; Himani Gautam Singh; Mahendra Tripathi
Journal of Agriculture and Applied Biology Vol 3 No 2 (2022): Journal of Agriculture and Applied Biology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jaab.03.02.08

Abstract

The experiment was conducted at Khairahani-5, Chitwan, Nepal from 28th February to 20th June 2021. Twenty single cross maize hybrids were evaluated for quantitative and qualitative traits. The experiment was conducted in a randomized complete block design (RCBD) with three replications. Data were recorded on flowering traits, physiological and disease traits, agro-morphological traits, and yield and yield contributing traits. Analysis of variance showed significant differences in all traits except for root lodging, the number of plants per hectare, leaf senescence, and plant aspect. The result indicated that HGABS2-15-2-1B/RL174 had the shortest days to anthesis and silking. The genotype RML138/RML140 was found to have double cob. The longest cob was found in RML76/RML146 (17.3 cm), while the highest cob diameter was found in the Shrestha (5.1cm). The maximum number of grains per row was obtained from RML57/RL174, while the highest thousand-grain weight was obtained in RAMPUR HYBRID-10. Shrestha variety produced highest grain yield (9.954tha-1) followed by RML191/RML18 (9.41tha-1), CAH1715 (9.356tha-1) and RML4/RL111 (9.021tha-1). The traits with the highest broad-sense heritability were the number of rows per ear (79%), days to fifty percent silking (75%), days to fifty percent anthesis (72%), thousand-grain weight (70%), and grain yield (68%). Correlation studies suggested that the number of ears per hectare, cob length, and thousand-grain weight showed a positive and significant correlation with grain yield. Therefore, RML191/RML18, CAH1715, and RML4/RL111 showed better performance in terms of grain yield.
Eco-friendly management of rice stem borer in spring rice (chaite-5) Pranita Kakshapati; Raksha Shrestha; Sumira Khatiwada
Journal of Agriculture and Applied Biology Vol 3 No 2 (2022): Journal of Agriculture and Applied Biology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jaab.03.02.09

Abstract

Since chemical pesticides have a variety of short- and long-term social, economic, and environmental repercussions, research was conducted in Baniyani, Jhapa, Nepal from January to July 2021 to manage the Yellow Stem Borer (YSB) of rice in an environmentally responsible manner. The research followed the Randomized Complete Block Design (RCBD) with three replications and seven treatments using the spring rice variety Chaite-2. The seven treatments used were spinosad 45% SC, Bacillus Thuringensis var krustaki + saccharopolyspora spinosad 15% SC, Azadiractin 0.3%, Chinaberry (Bakaino) leaf extract, Mugwort (Titepati) leaf extract, Metarhizium anisopliae and untreated plot. In order to evaluate the efficacy of the treatments, the number of dead heart and white head symptoms were counted at various time intervals, namely 7, 15, and 21 days after spraying (DAS). At the vegetative and reproductive stages of rice, the rice stem borer causes the symptoms known as "dead heart" and "white head," respectively. The eco-friendly insecticides significantly altered how the rice stem borer was affected. Among the insecticides, Spinosad 45%SC caused the highest reduction in dead hearts and whiteheads. Spinosad 45% SC treated plot showed highest yield (7.5tha-1). Given its effectiveness and eco-friendliness, spinosad could be regarded as the most successful eco-friendly insecticide for controlling the rice pest known as the Rice Stem Borer.
Front Cover Vol 3 No 1 2022 Editorial JAAB
Journal of Agriculture and Applied Biology Vol 3 No 1 (2022): Journal of Agriculture and Applied Biology
Publisher : Future Science

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Front Cover Vol 3 No 1 2022
Back Cover Vol 3 No 1 2022 Editorial JAAB
Journal of Agriculture and Applied Biology Vol 3 No 1 (2022): Journal of Agriculture and Applied Biology
Publisher : Future Science

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Back Cover Vol 3 No 1 2022
Front Cover Vol 3 No 2 December 2022 Editorial JAAB
Journal of Agriculture and Applied Biology Vol 3 No 2 (2022): Journal of Agriculture and Applied Biology
Publisher : Future Science

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Front Cover Vol 3 No 2 December 2022
Back Cover Vol 3 No 2 December 2022 Editorial JAAB
Journal of Agriculture and Applied Biology Vol 3 No 2 (2022): Journal of Agriculture and Applied Biology
Publisher : Future Science

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