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Agrosains: Jurnal Penelitian Agronomi
Published by Universitas Sebelas Maret
ISSN : 14115786     EISSN : 26557339     DOI : https://doi.org/10.20961/agsjpa
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Agrosains: Jurnal Penelitian Agronomi publishes articles related to agriculture such as plant physiology, crop production, physiology and seed production, soil science, plant breeding, plant protection, agro-climatology, agroecology, and plant biotechnology.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Agronomi dan Ilmu Tanaman
Articles 163 Documents
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Pengaruh Pupuk Silika Terhadap Pertumbuhan dan Produksi Kedelai pada Tanah Salin Febryan Taufiq; Budi Adi Kristanto; Florentina Kusmiyati
Agrosains : Jurnal Penelitian Agronomi Vol 22, No 2 (2020): Agrosains : Jurnal Penelitian Agronomi
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/agsjpa.v22i2.43385

Abstract

Silica fertilizer is applied to the soil for the purpose of reducing the effects of salinity stress. This research study was conducted to examine the effect of fertilization ratio with different sources of silica to soybean growth and production on saline soil. The methods used was Completely Randomized Factorial Designs 2 x 6 with 3 replications. The first factor was soil salinity levels (A), consists of A1 (±3 dS/m) and A2 (±6 dS/m). The second factor was different silica fertilizer aplications (B) which consists of  B0 (without silica), B1 (100% zeolite), B2 (75% zeolite, 25% liquid silica), B3 (50% zeolite, 50 % liquid silica), B4 (25% zeolite, 75% liquid silica), and B5 (100% liquid silica). Parameters observed in this research were plant height, number of leaves, number of pods, pod weight, number of seed and seed weight. Data was analyzed by analysis of variance followed by Duncan's Multiple Range Test. The result showed that the application of silica fertilizer through soil and leaves (50% zeolite, 50 % liquid silica) improved the growth and yield of soybean on soil with moderately saline (3 dS/m). application of silica fertilizer (50% zeolite, 50 % liquid silica) improved the growth and yield of soybean. The higher soil salinity reduced soybean growth and yield. Moreover, the utilization of silica minimized the decrease in soybean growth and yield.
Pemetaan Status pH Tanah dan C-Organik Tanah Sawah Tadah Hujan di Kecamatan Panai Tengah Kabupaten Labuhanbatu Fitra Syawal Harahap; Dedi Kurniawan; Rini Susanti
Agrosains : Jurnal Penelitian Agronomi Vol 23, No 1 (2021): Agrosains: Jurnal Penelitian Agronomi
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/agsjpa.v23i1.48479

Abstract

The production center for lowland rice in Labuhanbatu Regency in the last three years, precisely in Panai Tengah District, North Sumatra Province, has decreased production since 2018. One of the causes is a decrease in production because the nutrient content in the soil has decreased and added by fertilizer application by farmers. Lowland rice is still common due to limited data on land resources. This study aims to evaluate the land through the identification of classes, distribution and status of soil pH and C-Organic nutrients as well as organic matter in agricultural land in Central Panai District, and to determine the level of soil damage in each Land Mapping Unit. This research was carried out in Central Panai District with elevation. place 11 meters above sea level. Soil analysis was carried out in the integrated science laboratory of the Faculty of Science and Technology, Labuhanbatu University from January 2021 to March 2021, while the method in this study was a semi-detailed grid survey with the density of observation of 1 sample per 250 meters. Soil pH measurements used the pH-H2O and C-organic methods of soil using the Walkley and Black method. Furthermore, the results of the analysis of nutrient rainfed lowland soils are interpreted into a nutrient status map. The results showed that the pH content of rainfed lowland soil in Panai Tengah District, Labuhanbatu Regency was classified as very acidic and slightly acidic, while based on the soil nutrient status, namely C-organic and organic matter in the low category, so as to increase the productivity of rainfed lowland soil with soil organic matter content.up to 3% required organic fertilizer in the Central Panai District, Labuhanbatu Regency.
Efektivitas Kombinasi Insektisida Nabati Daun Sirsak (Annona muricata L.) dan Daun Sirih Hijau (Piper betle) terhadap Mortalitas Ulat Grayak (Spodoptera litura F.) Wira Guna Siswaatmadja; Albertus Sudirman; Dedy Supriyatdi; Mirodi Syofian
Agrosains : Jurnal Penelitian Agronomi Vol 23, No 2 (2021): Agrosains: Jurnal Penelitian Agronomi
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/agsjpa.v23i2.49130

Abstract

Armyworm (Spodoptera litura) is a polyphagous pest because it has a diverse host range. Armyworm is an important pest because it can cause crop failure if not controlled. One way to control it is by applying botanical insecticides. Some plants that have the potential to be used as vegetable pesticides include soursop leaf (Annona muricata L.) and green betel leaf (Piper betle L.). This study aimed to examine the effect of the combination of soursop leaf extract (Annona muricata L.) and green betel leaf extract (Piper betle L.) on the mortality of Spodoptera litura F and to obtain the best concentration of the combination of soursop leaf extract (Annona muricata L.). and vegetable insecticide green betel leaf (Piper betle L.) in the control of armyworm (Spodoptera litura F). The design used was a completely randomized design (CRD) which consisted of 7 treatments with 4 replications so that 28 experimental units were obtained. Vegetable insecticides combined with betel leaf and soursop leaf extract have the potential to control S. litura F. with the best concentration in controlling S. litura is a concentration of 60% based on armyworm mortality and killing speed of S. litura F.
Inokulasi Mikoriza pada Media Tanam Campuran Kompos Kotoran Kambing Terhadap Pertumbuhan Bibit Kakao Dedi Kurniawan; Triara Juniarsih; Fitra Syawal Harahap
Agrosains : Jurnal Penelitian Agronomi Vol 23, No 2 (2021): Agrosains: Jurnal Penelitian Agronomi
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/agsjpa.v23i2.54992

Abstract

Improvements in cocoa cultivation techniques need to be done by adding goat manure as a mixture of planting media to improve the physical properties of the soil in order to make it easier for roots to develop. This objective of this study was to determine concentration of mycorrhizae, the best growing media for cocoa seedlings, and interaction on the growth of cocoa seedlings. The method used was randomized block design with two factor. The first factor was the inoculation of mycorrhizae consisting of four levels: without inoculation of mycorrhizae 10 g/plant, 20 g/plant, and 30 g/plant. The second factor was the growing media with three levels of growing media: top soil, top soil + goat manure compost (1:1), and top soil + goat manure compost (1:2). The results showed that the growing media had a significant effect on the height and volume of plant roots. Growing media of top soil produced the best average seedling by 38.06 cm and root volume by 4.39 cm3. The interaction of giving mycorrhizae with growing media had a significant effect on root volume with the best treatment 10 g/plant mycorrhizae and top soil by 5.67 cm3. The results analysis of root infection by arbuscular mycorrhizal fungi showed the highest infection in the 20 g/plant mycorrhizae and top soil by 80%. Application of mycorrhizae with growing media can increase cocoa yield and growth. Planting media mycorrhizae infected to soil can affect cocoa seedling.
Respons Ulat Grayak (Spodoptera litura) terhadap Lama Perendaman Tembakau Rajang (Nicotiana tabacum L.) sebagai Insektisida Nabati Adi Sanjaya Hasian Silalahi; Dedi Supriyatdi; Albertus Sudirman
Agrosains : Jurnal Penelitian Agronomi Vol 23, No 2 (2021): Agrosains: Jurnal Penelitian Agronomi
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/agsjpa.v23i2.49452

Abstract

Tobacco is a plant that is concerned with the quality of its leaves, damage to tobacco leaves can reduce its selling value. Caterpillars (Spodoptera litura) are pests in tobacco plants that damage the leaves of tobacco plants. Extraction from parts of the tobacco plant can be used as raw material for vegetable pesticides, extracted chopped tobacco can produce alkaloids which can be used as an insecticide to control caterpillars. The purpose of this study was to obtain the best soaking time for chopped tobacco to control caterpillars. The research was carried out in the laboratory and in fields using tobacco plants as hosts for third instar caterpillar larvae by means of contact poison. The research method used a randomized block design (RBD) with the treatment of chopped tobacco for 12, 24, 36, 48 and 62 hours with five replications. The variables observed were mortality, attack intensity and duration of pupa formation. The results showed that chopped tobacco immersion was effective against army caterpillar mortality, the soaking time of chopped tobacco could also accelerate the formation of pupae and 60 hours of immersion had the best attack intensity.
Pengaruh Pupuk Kandang Plus Terhadap Pertumbuhan dan Produksi Jagung Manis di Purwodadi, Kabupaten Grobogan Silfareda Aulia; Dwi Retno Lukiwati; Eny Fuskhah
Agrosains : Jurnal Penelitian Agronomi Vol 23, No 2 (2021): Agrosains: Jurnal Penelitian Agronomi
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/agsjpa.v23i2.53874

Abstract

Manure plus is manure’s nutrition improvement by the addition of organic N from (L. leucocephala) and nature P from (rock phosphate). The aim of this research are to evaluate the effect of  ‘manure plus’ on growth and production of sweet corn. The method used was Randomized Block Design with seven treatments and four replications. The treatments were P0 (ZA + TSP), P1 (Cattle manure + ZA + TSP), P2 (Goat manure + ZA + TSP), P3 (Poultry manure + ZA + TSP), P4 (Cattle manure + RP + + Leucaena leucocephala), P5 (Goat manure + RP+ Leucaena leucocephala), P6 (Poultry manure + RP + Leucaena leucocephala). KCl gave to all plots (150 kg K2O/ha). The parameters were plant height, leaf’s number, cob length, cob diameter, sum of seed row, and production of sweet corn. Data subjected to analysis of variance and followed DMRT at α = 5%. The result showed that cob diameter and sum of seed row of P4 had no significantly different compared to P1, P5 had no significantly different compared to P2, P6 had no significantly different compared to P3. The leaf’s number of P4 had no significantly different compared to P1, P5 had no significantly different compared to P2, whereas P3 had leaf’s number more than P6. All treatments had no significant effect towards plant height, cob length and production of sweet corn. Based on the research, manure plus can be used to substitute the role of manure + ZA + TSP.
Penggunaan Fitoremediasi dengan Sistem Up-Flow untuk Mereduksi Polutan pada Outlet Kolam Anaerob II Limbah Cair Pabrik Kelapa Sawit Andina Pratiwi; Rijadi Subiantoro; Febrina Delvitasari
Agrosains : Jurnal Penelitian Agronomi Vol 23, No 2 (2021): Agrosains: Jurnal Penelitian Agronomi
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/agsjpa.v23i2.50101

Abstract

Oil palm plantations are one of the commodity crops that have an important role in the economy in Indonesia, namely as an export commodity that generates foreign exchange in addition to oil and gas. The increase in world demand for oil palm commodity encourages the growth of oil palm industry so that estimates of liquid waste also increase. If the liquid waste is disposed of directly into the aquatic environment without proper management, it will have a negative impact. This study aims to find the best phytoremedian in reducing the pollutants of WWTP II anaerobic ponds in the oil palm mill industry and to get the reduction. Research activities took place from July 2020 to September 2020 in the field and Analysis Laboratory of the Lampung State Polytechnic. This study uses an up-flow system with a stagnant condition and is carried out on a laboratory scale by testing using descriptive methods. The phytoremedian used in this study were water nails (Azolla pinnata) (A1), water spinach (Ipomoea aquatica) (A2), cattail (Typha angustifolia) (A3) and water bamboo (Equisetum hyemale) (A4). The results showed that the best phytoremedian in reducing the observation variable of oil palm mill effluent outlet anaerobic pond II was water spinach (Ipomoea aquatica). Phytoremedian Ipomoea aquatica at the end of the treatment was able to reduce the COD value with a decrease percentage of 41.29%, increase the pH to 8.57, reduce the TSS value to 124 mg/L, the turbidity value to 21 mg/L, the total N value to 0.021 mg/L, the K value becomes 2.59 mg/L.
Pupuk Terhadap Kandungan Proksimat dan Mineral pada Suruhan Peperomia pellucida Yusrin Anton Puluhulawa; Novri Youla Kandowangko; Margaretha Solang
Agrosains : Jurnal Penelitian Agronomi Vol 23, No 2 (2021): Agrosains: Jurnal Penelitian Agronomi
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/agsjpa.v23i2.47434

Abstract

Suruhan plant is one of the plants that has properties for treatment in various diseases such as diabetes mellitus, headache, fever, and rheumatism. The plant contains antioxidants, antimicrobials and anticancers. Proximate content analysis is important to be used as data on the content of a foodstuff. One way to increase the content to be more useful is by cultivating using organic fertilizer. The purpose of this research is to find out the influence of organic fertilizers on the content of proximate, minerals on the plants. The method used was descriptive quantitative. This research was conducted in Bua Village, Batudaa District, Gorontalo Regency. Sample preparation of surname plants was carried out at the Biology Laboratory of the State University of Gorontalo for proximate and mineral analysis carried out at the Analysis Laboratory of the Bogor Pacapanen Center. The research was carried out in August-September 2020. Based on the results showed that on the content of proximate and minerals in the commission plants given organic fertilizer obtained water content of 26.60%, ash content of 16.80%, fat content of 2.58%, protein content of 13.86%, carbohydrates 40.16%, iron (Fe) 18.74 ppm, calcium (Ca) 255.92 ppm.
Perkecambahan Benih Kopi Dengan Pemberian Konsentrasi Hormon Giberellin (GA3) dan Jenis Air yang Berbeda Dede Suhendra; Siska Efendi; Aswaldi Anwar
Agrosains : Jurnal Penelitian Agronomi Vol 23, No 2 (2021): Agrosains: Jurnal Penelitian Agronomi
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/agsjpa.v23i2.54780

Abstract

The propagation plants coffee is carried out in generative manner and needs be optimized with treating gibberellin hormone and water temperature to germination stage of coffee seeds.The research conducted at the Seed Technology Laboratory Faculty Agiculture, Andalas University from May to August 2021. Measurement parameters were germination rate (days), normal germination (%), abnormal germination (%) and dead seeds (%). The results showed that germination rate (days), normal germination (%) and abnormal germination (%) showed a significant effect. While the data had no significant effect on the observation of dead seeds (%) in the treatment of gibberellin hormone concentration and treatment of water types, which in the observation of normal sprouts was the highest, namely in the treatment of 400 ppm gibberellin hormone concentration with coconut water (G4J3) of 86.67% and on seed observation. The highest death rate was treatment gibberellin hormone 200 ppm with mineral water temperature 60°C (G1J2) which was 33.33%. Giberelin and mineral water can affect coffee germination.
Efektifitas Tanaman Refugia Border Crop terhadap Serangan Hama Plutella xylostella dan Crocidolomia binotalis pada Tanaman Kubis Bunga Ludviyatil Witri; Hari Purnomo
Agrosains : Jurnal Penelitian Agronomi Vol 23, No 2 (2021): Agrosains: Jurnal Penelitian Agronomi
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/agsjpa.v23i2.48224

Abstract

Pest attacks that become obstacles in cauliflower cultivation are Plutella xylostella and Crocidolomia binotalis, which can cause yield loss and crop failure. Efforts that can be used to reduce excessive use of pesticides are by controlling by the principles of integrated pest control by manipulating habitat using refugia plants grown as border crops. The plants used as refugia were T. subulata and T. erecta. The purpose of the study was to determine the effectiveness of refugia as a border crop against the intensity and attack of P. xylostella and C. binotalis pests. The design used was a Randomized Block Design (RBD) with four treatments and six replications. Observations were made eight times with an interval of one week. Parameters observed were pest population, attack intensity, and parasitization level. The population of P. xylostella and C. binotalis larvae was highest in the P0 (control) treatment. The lowest average P. xylostella and C. binotalis larvae population was in the P3 treatment (T. subulata + T. erecta). The highest percentage of damage intensity every week in the control treatment (P0). Treatment P3 (T. subulata + T. erecta) gave a significantly different effect compared to treatment P1 (T. subulata) P2 (T. erecta) and P0 (control). No parasitoid was found that attacks P. xylostella, Eriborus argenteopilosus is a parasitoid of C. binotalis with a parasitation rate of 54%.

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