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Agroista: Jurnal Agroteknologi
Published by Institut Pertanian Stiper Yogyakarta
ISSN : 25973835     EISSN : 26847019     DOI : https://doi.org/10.55180/agi
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
AGROISTA : Journal of Agrotechnology Research is scientific periodical publication on agricultural issue as a media for information dissemination of research result for lecturers, researchers and practitioners. The coverage includes but is not restricted to: Plantation productivity Plant breeding and genetics Plant Physiology Pests and diseases, weeds in plantations Plant protection Sustainable agriculture Organic agriculture Conservation of plantation land Soil and fertility Plantation Management CSR of plantation companies
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 9 Documents
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Search results for , issue "Vol. 7 No. 1 (2023): MEI" : 9 Documents clear
Penentuan Dosis Pupuk Berdasarkan Data Tonase Tandan Buah Segar (TBS) pada Perkebunan Kelapa Sawit Winaldo Tjandra; Candra Ginting; Sri Gunawan
AGROISTA : Jurnal Agroteknologi Vol. 7 No. 1 (2023): MEI
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (217.141 KB) | DOI: 10.55180/agi.v7i1.341

Abstract

The productivity of Fresh Fruit Bunch (FFB) in Indonesia is relatively low with an average productivity of below 15 tonnes.ha-1.year-1,which is still very far below its potential, which is around 25 tonnes.ha-1. year-1, one of the contributing factors is the application of fertilizers. neither the type nor the dose has been done precisely. Research on Determining Fertilizer Dosage Based on FFB  tonnage data for oil palm plantations has been carried out from March to October 2022 at a private oil palm plantation company located in Nunukan Regency, North Kalimantan Province. The research was carried out on an area of ​​812 ha which was divided into 28 blocks, consisting of 7 treatments each carried out in 4 blocks as repetition. The soil pH conditions are relatively neutral, namely between 6.0-6.9. Fertilizers used are also of various kinds, namely Urea, Rock phosphate, Muriate of potash, Kieserit and Dolomite. The dosage of fertilizer is determined based on the tonnage of fresh fruit bunches produced and compared with the dose of fertilizer according to the recommendations from the leaf sampling unit. This study uses monthly data for each block from March to October 2022 which includes: average stem weight (BJR), number of stems per tree (JJG/PKK), and productivity (tons.ha-1.month-1). The data obtained were then analyzed for variance and continued with Duncan's multiple range test. The results showed that in March, April and October there was a significant difference between the treatments where in March there was a difference in the productivity of fresh fruit bunches where the application of Urea-Rph-MOP-Kieserite fertilizer was 4.3-2.5-1 respectively. .9-2.9 respectively in kg.principle-1.year-1 (P1) shows the highest productivity. In April and October there was a significant difference in the yield per tree where in April the Urea-Rph-MOP fertilizer application treatment was 2.4-1.6-1.8 respectively in kg.principal-1 year-1 (P5) showed that the number of shoots per tree tended to be higher than the other treatments, whereas in October the number of stems per tree tended to be higher in treatment P1. However, there was no significant difference in average length weight from March to October. Thus the dosage of fertilizer can be determined based on fresh fruit bunch tonnage data as an option other than based on the results of leaf sampling units to be implemented in the field.
Dampak La Nina 2021-2022 terhadap Peningkatan Curah Hujan Wandi Nusa Harahap; Betti Yuniasih; Sri Gunawan
AGROISTA : Jurnal Agroteknologi Vol. 7 No. 1 (2023): MEI
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (316.933 KB) | DOI: 10.55180/agi.v7i1.364

Abstract

La Nina is a climate anomaly that can cause extreme weather. La Nina is marked by a decrease in the sea surface temperature of the Pacific Ocean at the equator. La Nina can cause a prolonged rainy season for Asia including Indonesia. From mid-2020 to the end of 2022, Indonesia has experienced La Nina events. This study aims to determine changes in rainfall patterns and the number of rainy days during La Nina events. This research was conducted descriptively, using Pacific Ocean sea surface temperature (SST) data and rain data originating from the BMKG Climatology Station of Sultan Syarif Kasim II Pekanbaru from data for the last 10 years 2013-2022. The results of the study show that La Nina occurred from October 2020 to December 2022 with a weak to moderate level of La Nina strength. La Nina has increased the amount of rainfall 54-90% from normal conditions and increased the number of rainy days 11-70% compared to climate with normal conditions. Monthly rainfall is in the low to high category, while daily rainfall is included in the heavy rain category. The La Nina event has caused a prolonged rainy season for almost 3 years and has increased the amount of rainfall and rainy days.
Respon Pertumbuhan Bibit Kelapa Sawit di Pre Nursery terhadap Macam dan Interval Waktu Pemberian Urin Fajar Khoerudin; Wiwin Dyah Ully Parwati; Achmad Himawan
AGROISTA : Jurnal Agroteknologi Vol. 7 No. 1 (2023): MEI
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (213.839 KB) | DOI: 10.55180/agi.v7i1.395

Abstract

This study aims to determine the growth response of oil palm seedlings in the pre nursery to the type and time interval of urine aplication. The research was conducted at Kebun Pendidikan dan Penelitian Institut Pertanian Stiper Yogyakarta, Maguwoharjo, Depok, Sleman, Yogyakarta Special Region. This research was conducted from November 2022 to January 2023. The study used a factorial experimental design and a completely randomized design (CRD) consisting of two factors. The first factor which consist of four levels namely control (NPK, N), cow urine, goat urine and rabbit urine.  The second factor which consist of three levels namely once every three days, once every five days and once every seven days. There were twelve treatment combinations and repeated five times so that there were sixty plant samples. Using ANOVA (Analysis of Variance) with a significance level of five percent this data was analyzed. Futher test using DMRT (Duncan Multiple Range Test) with a significance level of five percent if there is a significant difference. There was an interaction between the type dan time interval of urine aplication on shoot fresh weight and shoot dry weight. Control (NPK, N) and type of urine had the same effect, meaning that livestock urin could replace chemical fertilizers (NPK, N). The time inteval for giving urine once every seven days was the best compared to once every three days and once every five days.
Pengaruh Intensitas Penyinaran dan Komposisi Media Tanam terhadap Pertumbuhan Aglaonema Varietas Dud Unyamanee Fitria Jasmine; Retni Mardu Hartati; Erick Firmansyah
AGROISTA : Jurnal Agroteknologi Vol. 7 No. 1 (2023): MEI
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (194.674 KB) | DOI: 10.55180/agi.v7i1.430

Abstract

Aglaonema is one of the horticultural agricultural commodities in the ornamental plant group which has high potential and high value. The community has several aglaonema, but some of them have pale leaves and don't grow well. Therefore, research is needed to find the right technical culture information for aglaonema growth. The purpose of this research is to find out how Aglaonema var. respond to growth. Dud unnyamanee on the composition of the planting medium and the irradiation intensity. This research was conducted in divided plots with a completely randomized design/CRD 2 factors using polybags measuring 20x20 cm. The first factor was the irradiation intensity (main plot) which can be as high as 15 percent using 85% paranet shading or as low as 30 percent with 70 percent paranet shading. The second factor was the method of making the planting medium (sub-plots): compost, husk charcoal, cocopeat. For each parameter, the findings show that there was no interaction between irradiation intensity and growing medium composition. It was possible that each treatment had a different effect. In the number of leaves parameter, the irradiation intensity of 15% showed that the number of leaves was greater than the intensity of 30%. The number of stomata which were primarily used for gas exchange such as carbon dioxide (CO2) that plants need during photosynthesis could be affected by shade. Soil levels of N, P, and K nutrients also affected the number of leaves. All observed parameters did not show a significant difference in the treatment of the planting medium composition.
Pengaruh Waktu Dekomposisi dan Dosis Pupuk Kandang Kotoran Kambing Terhadap Pertumbuhan dan Hasil Tanaman Terong (Solanum melongena) M. Iqbal Abdillah; Titin Setyorini; Pauliz Budi Hastuti
AGROISTA : Jurnal Agroteknologi Vol. 7 No. 1 (2023): MEI
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (272.434 KB) | DOI: 10.55180/agi.v7i1.500

Abstract

The application of organic fertilizers in eggplant cultivation can reduce the use of chemical fertilizers which can damage the soil in long term. The maturity of organic fertilizer to be ready for application is highly dependent on the length of the decomposition process. This study aims to determine the effect of decomposition time and dosage of goat manure on the growth and yield of eggplant plants. The research was conducted from April to June 2022 in Maguwoharjo, Depok, Sleman, Yogyakarta. This study used a factorial experiment method arranged in a completely randomized design consisting of two factors. Factor I was decomposition time consisting of 3 levels, namely: 1 month (W1); 1,5 months (W2); 2 months (W3). Factor II was the dosage of goat manure consisting of 3 levels, namely, 100 g (D1), 200 g (D2), 300 g (D3). Each treatment was repeated 6 times. Data from the study were analyzed using variance analysis and continued with DMRT test at 5% significant level. The results showed no significant interaction between the treatment of decomposition time and dosage of goat manure on all parameters. Each treatment gave a different effect on the growth and yield of eggplant plants. The best decomposition time on the parameters of leaf area is 2 months, stem diameter is 1,5 months, and root length is 1 month. The best dosage of goat manure on leaf area parameter is 200 g, while on the number of leaves and number of flowers parameter is 300 g.
Pengaruh Decanter Solid dan Pupuk NPK terhadap Peningkatan Pertumbuhan Bibit Kelapa Sawit di Main Nursery Imam Prasetyo; Sri Manu Rohmiyati; Herry Wirianata
AGROISTA : Jurnal Agroteknologi Vol. 7 No. 1 (2023): MEI
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/agi.v7i1.442

Abstract

Solid decanter is one of the by-products from palm oil mills, which  have not used as much as empty fruit bunches. The purpose of this study was to determine the effect of solid decanter as a mixture of nursery media and NPK doses on the increament growth of oil palm seedlings in the main nursery (MN). This study used a factorial experiment with a completely randomized design. Solid mixture: soil consisting of: 0: 1, 1: 3; 1:2, and 1 : 1 (volume/volume) of decanter solid. NPK fertilizer rate consist of: 23, 46, 69, and 92 g/seedling. There were 16 treatment combinations with four replications. The results showed that mixing solid in the media resulted in  the growth increament of oil palm seedlings in MN which was the similar as soil media solely. However, the root system of these seedlings is more developed in soil media than in media containing solid decanters. While the difference in NPK rates results in the similar growth increament of oil palm seedlings.
Pengaruh Aplikasi PGPR (Plant Growth Promoting Rhizobacteria) dan Air Leri terhadap Pertumbuhan Bibit Kelapa Sawit di Pre Nursery Galih Valerianifo; Hangger Gahara Mawandha; Elizabeth Nanik Kristalisasi
AGROISTA : Jurnal Agroteknologi Vol. 7 No. 1 (2023): MEI
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/agi.v7i1.574

Abstract

Pre-nursery is one of the important stages in preparing oil palm planting materials. PGPR (Plant Growth Promoting Rhizobacteria) are beneficial bacteria for plants that colonize around plant roots. Leri water is one of the by-products of household activities that contain beneficial properties for plants. This study aims to determine the application of PGPR and air leri on the growth of oil palm seedlings in pre-nursery and to determine the interaction between the application of PGPR and air leri on the growth of oil palm seedlings in the pre-nursery. This research was conducted from February to July to October 2022 in Maguwoharjo Village, Sleman, Yogyakarta. The study used an experimental method which was arranged in a completely randomized design (CRD) consisting of two factors. The first factor is the PGPR application, which consists of four levels, namely 0 ml, 10 ml, 20 ml, and 30 ml. The second factor is the application of leri water consisting of three levels, namely every 2 days, 4 days, and 6 days. Observations were analyzed using variance at the 5% level of significance. If there is a significant difference then proceed with Duncan's multiple range test at the 5% level of significance. The results showed that there was an interaction between the application of PGPR and leri water on seedling height, stem diameter, number of leaves, root length, root volume, and shoot fresh weight, crown dry weight, root dry weight, plant fresh weight, and plant dry weight. Whereas in the application of PGPR and leri water to root fresh weight there was no interaction and each treatment was not significantly different.
Pengaruh Dosis Mikoriza dan Komposisi Media Tanam terhadap Pertumbuhan Bibit Kelapa Sawit di Pre Nursery Roy Leonardo Lumban Batu; Suprih Wijayani; Pauliz Budi Hastuti
AGROISTA : Jurnal Agroteknologi Vol. 7 No. 1 (2023): MEI
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/agi.v7i1.580

Abstract

The development of oil palm plantations begins with the procurement of quality seeds. This effort is carried out through the use of mycorrhizal fungi as biological fertilizers and and improvement of seedling planting media. This study aims to determine the effect of mycorrhiza dose with the mixed composition of rice husk charcoal and top soil on the growth of oil palm seedlings in the pre-nursery. This research was a factorial experiment arranged in a completely randomized design. The composition of the planting medium consists of four levels: top soil, 25% husk charcoal with 75% humus, 50% husk charcoal plus 50% top soil, and 100% husk charcoal solely. The dose of mycorrhizal biofertilizer consists of three levels, namely: 0.5 and 10 grams per seed. The results of this study indicated that the composition of the media or the application of mycorrhizal biofertilizers had no significant effect on the growth of oil palm seedlings in prenursery. The largest seedling leaf area was produced by seedlings planted on media containing husk charcoal which was given 10 grams of mycorrhizal biofertilizer.
Optimasi Induksi Tunas Aksiler Dendrobium nobile Melalui Kombinasi 2-iP dan 2,4-D In Vitro Sofiatul Milah; Lili Sugiyarto; Ratnawati; Suyitno Aloysius; Ixora Sartika Mercuriani
AGROISTA : Jurnal Agroteknologi Vol. 7 No. 1 (2023): MEI
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/agi.v7i1.613

Abstract

This research aims to determine optimum combination of addition 2-iP and 2,4-D with different concentration and the nodus position for induction Dendrobium Red Emperor ‘Prince’ axial shoots. The research employed a CFR design with two factors, namely: variation of combined concentration 2-iP and 2,4-D (A: 1 ppm 2-iP + 2 ppm 2,4-D; B: 2 ppm 2-iP + 1,5 ppm 2,4-D; C: 3 ppm 2-iP + 1 ppm 2,4-D; D: 4 ppm 2-iP + 0,5 ppm 2,4-D) each treatment was repeated 6 times and the nodal position (top, middle, bottom). The basic medium is NP+CW. The axillary bud growth is measured based on the time of bud emerge, shoot growth, explant percentage which form axillary bud, root growth, and plantlet wet weight. Data obtained were analyzed using ANOVA and continued with DMRT 5%. Results show that B treatment give fastest bud emerging time, and highest stem diameter, buds height, leaves length, leaves width, roots length. A treatment shows best results on shoots number, plantlet wet weight, number of leaves, and number of roots. The optimum combined concentration of 2-iP and 2,4-D to induce axillary shoots is 2 ppm 2-iP + 1,5 ppm 2,4-D, whilst best nodus position is the top one.

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