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Maria Puri Nurani
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INDONESIA
Mikroba: Jurnal Ilmu Tanaman, Sains dan Teknologi Pertanian
Published by Asosiasi Riset Ilmu Tanaman dan Hewan Indonesia
ISSN : 30470242     EISSN : 30327598     DOI : 10.62951
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
The field of study in this journal includes the Plant Science, Agricultural Science and Technology sub-group
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 65 Documents
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Analisis Tingkat Konsentrasi dan Struktur Pasar Komoditas Lada pada Perdagangan Internasional Hariri, Rif'an; Azhar Irvana Gangsar
Mikroba : Jurnal Ilmu Tanaman, Sains Dan Teknologi Pertanian Vol. 2 No. 3 (2025): December: Mikroba : Jurnal Ilmu Tanaman, Sains Dan Teknologi Pertanian
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewani Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/mikroba.v2i3.554

Abstract

Pepper is currently not only used to meet daily needs but also as an export commodity. Indonesian pepper exports generate foreign exchange for the country. Currently, international competition for pepper exports is increasingly fierce. An evaluation of the level of market competition and the structure of the pepper market at the international level is necessary. The methods used to analyze the level of competition concentration and market structure are the Concentration Ratio of Biggest Four (CR4) and the Herfindahl-Hirschman Index (HHI). The types of pepper discussed in this study are white pepper with HS code 090411 and black pepper with HS code 090412. The results obtained indicate that both black and white pepper tend to be in an oligopoly market structure with a relatively high level of competition. Such market conditions are a distinct advantage for Indonesia, as there are not too many competitors while buyers or enthusiasts are quite high. A striking difference occurs in the international black pepper trade. In the black pepper trade, Indonesia is not classified as a country with the largest market share.
Growth and Production of Sweet Corn (Zea mays var. Saccharata Strut.) at Various Doses of NPK 16-16-16 Fertilizer Astryani Rosyad; Erik Mulyana; Hafith Furqoni; Suwarto Suwarto; Adrian Khairullah; Annas Sofian
Mikroba : Jurnal Ilmu Tanaman, Sains Dan Teknologi Pertanian Vol. 3 No. 1 (2026): April: Mikroba : Jurnal Ilmu Tanaman, Sains Dan Teknologi Pertanian
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewani Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/mikroba.v3i1.551

Abstract

Sweet corn is a high-value horticultural crop with steadily increasing demand for both fresh consumption and use as a raw material in the food industry. This study aims to evaluate the effectiveness of NPK 16-16-16 fertilizer on the growth and yield of sweet corn. The research was conducted at Sindangbarang Experimental Field, Faculty of Agriculture, IPB University from July to October 2025. This experiment used a Randomized Complete Block Design (RCBD) with a single factor, namely the dose of fertilizer application. Treatments were using fertilizer dosages of 0, 50, 0,75, 1,00, and 1,50 NPK 16-16-16, with a control treatment for comparison. During the vegetative phase, sweet corn exhibited similar growth responses across all fertilization levels relative to the control. However, all fertilizer doses significantly improved stover weight, cob weight with and without husk, cob length, cob diameter, yield per plot, and overall productivity compared to the control. The application of NPK 16-16-16 fertilizer at the recommended (1.0) rate achieved the highest relative agronomic effectiveness (103.11%), corresponding to a 1.03-fold yield increase over the control and outperforming the comparison treatment. Application of NPK 16-16-16 at the 1.0 recommended dose is suggested as the most efficient fertilization strategy for sweet corn production, as it maximizes yield and productivity without unnecessary increases in fertilizer input.     
Comparison of Compound and Single-Nutrient Fertilizer Sources on Cabbage Growth and Production Hafith Furqoni
Mikroba : Jurnal Ilmu Tanaman, Sains Dan Teknologi Pertanian Vol. 3 No. 1 (2026): April: Mikroba : Jurnal Ilmu Tanaman, Sains Dan Teknologi Pertanian
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewani Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/mikroba.v3i1.569

Abstract

This study evaluated the effects of compound and single-nutrient fertilizers on the growth and yield of cabbage (Brassica oleracea L.). The experiment was conducted using a randomized complete block design with seven fertilization treatments, including varying doses of compound fertilizer and a single-nutrient control. Results showed that the application of a 1.0× dose of compound fertilizer significantly improved plant height at 3 and 4 weeks after transplanting (WAT), and increased leaf number at 5 WAT. Yield components, including yield per plant, per plot, and hectare, were significantly higher in the 1.0× treatment, with an average yield of 1.92 kg per plant—an increase of 86.4% and 11.6% compared to the control and single-nutrient treatments, respectively. The relative agronomic effectiveness of the 1.0× dose reached 139%, indicating superior performance over the standard fertilizer. Economic analysis confirmed its viability, with the highest benefit-cost ratio (R/C) of 2.23 and a net profit of IDR 14,487,900. These findings suggest that compound fertilizer is both agronomically effective and economically profitable. The recommended application rate for cabbage is 211 kg/ha, applied one week after transplanting.
The Effectiveness of Mn EDTA (12%) Micronutrient Fertilizer on Agronomic Performance of Sweet Corn (Zea mays saccharata Sturt.) Erik Mulyana
Mikroba : Jurnal Ilmu Tanaman, Sains Dan Teknologi Pertanian Vol. 3 No. 1 (2026): April: Mikroba : Jurnal Ilmu Tanaman, Sains Dan Teknologi Pertanian
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewani Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/mikroba.v3i1.585

Abstract

Sweet corn (Zea mays saccharata Sturt.) is an increasingly popular horticultural commodity in Indonesia, attracting both farmers and consumer. This study aims to evaluate the effectiveness of single‑micronutrient fertilizer Mn‑EDTA (12%) in enhancing the growth and yield of sweet corn (Zea mays saccharata Sturt.). The treatments consisted of control, standard NPK, 0.25 NPK, 0.50 NPK, 0.75 NPK, and 1.00 NPK. The experimental findings demonstrated that the application of single‑micronutrient Mn‑EDTA (12%) fertilizer had a highly significant effect on vegetative growth and yield components of sweet corn, with statistically higher values compared with the control treatment. In general, fertilizer dosages equivalent to 0.25–1.00 NPK produced greater plant height, stem diameter, leaf number, ear length, ear diameter, biomass weight, ear weight with husk, ear weight without husk, plot yield, and productivity than the control. The RAE calculation indicated that the fertilizer was effective when applied at dosages equivalent to 0.75 and 1.00 NPK. The highest effectiveness was observed at the 1.00 NPK dosage, with an RAE value of 101%. Notably, the application of Mn‑EDTA (12%) fertilizer at the 1.00 NPK dosage provided significant field effectiveness, as reflected by the RAE value of 101%. This result implies that the use of single‑micronutrient Mn‑EDTA (12%) fertilizer at the 1.00 NPK dosage increased yield by 1.01 times compared with the yield improvement obtained from the reference fertilizer relative to the control treatment.
Kuantifikasi Perubahan Kadar Nitrogen Total di Tanah dan Jaringan Tanaman Kedelai (Glycine max (L.) Merrill) Varietas Anjasmoro selama Proses Budidaya Shinta Palupi
Mikroba : Jurnal Ilmu Tanaman, Sains Dan Teknologi Pertanian Vol. 3 No. 1 (2026): April: Mikroba : Jurnal Ilmu Tanaman, Sains Dan Teknologi Pertanian
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewani Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/mikroba.v3i1.593

Abstract

Nitrogen is an essential element for soybean growth, particularly in the formation of vegetative organs and seed protein. The nitrogen requirement of soybean plants varies according to their growth stages. This study aimed to quantify nitrogen levels in soil and plant tissues of Anjasmoro soybean variety over a 13-week cultivation period. Observations were conducted weekly by collecting soil and plant samples from three randomly selected polybags. Nitrogen analysis was performed using a colorimetric Kjeldahl method. The results showed that nitrogen supply was obtained not only from soil media and fertilizers, but also from biological nitrogen fixation facilitated by symbiotic microbes forming root nodules as well as non-symbiotic soil microbes. The lowest total soil nitrogen content was recorded at 0 weeks after planting (WAP) at 0.20%, while the highest was observed at 7 WAP at 0.82%. The lowest total nitrogen content in plant tissue occurred at 8 WAP at 1.80%, whereas the highest was recorded at 4 WAP at 8.07%. Soybean plants experienced etiolation due to suboptimal light intensity, resulting in a vegetative phase that was prolonged by two weeks. Nitrogen uptake during this extended vegetative period reached 4.6%. The average total nitrogen absorbed by the plants during cultivation was 2.881 g per plant, while total nitrogen accumulation in the system increased by 26.285 g per plant.

Page 7 of 7 | Total Record : 65

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