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All Journal REKAYASA Indonesian Journal of Agriculture and Environmental Analytics Agritrop : Jurnal Ilmu-Ilmu Pertanian (Journal of Agricultural Science) Glosains: Jurnal Sains Global Indonesia
Lestari, Bibit Lilik
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Agriculture, Biological Sciences & Forestry Computer Science & IT Earth & Planetary Sciences Electrical & Electronics Engineering Engineering Environmental Science Health Professions Physics

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KAJIAN ZPT ATONIK DALAM BERBAGAI KONSENTRASI DAN INTERVAL PENYEMPROTAN TERHADAP PRODUKTIVITAS TANAMAN BAWANG MERAH (ALLIUM ASCOLANICUM L.) Lestari, Bibit Lilik
Rekayasa Vol 4, No 1: April 2011
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (158.052 KB) | DOI: 10.21107/rekayasa.v4i1.2323

Abstract

Penelitian ini bertujuan untuk mengetahui bagaimana pengaruh konsentrasi dan penyemprotan ZPT Atonik serta pengaruh interaksi antara keduanya terhadap produktivitas bawang merah. Penelitian dilakukan di desa Arjasa, Kecamatan Arjasa, Kabupaten Jember pada ketinggian tempat ± 141 m dpl pada bulan Juli 2010 sampai Oktober 2010. Rancangan yang digunakan adalah RAK Faktorial dengan 3 kali ulangan. Faktor pertama konsentrasi Atonik (K) terdiri dari 4 level yaitu: K1 = 0,25 cc/liter,  K2 = 0,50 cc/liter,  K3 = 0,75 cc/liter, K4 = 1,00 cc/liter. Faktor kedua interval penyemprotan (I) terdiri dari 3 aras yaitu I1 = umur 15-20-25-30 hari setelah tanam, I2 = umur 15-25-35-45 hari setelah tanam I3 = umur 15-30-45 hari setelah tanam. Hasil penelitian menunjukkan bahwa konsentrasi Atonik berpengaruh nyata terhadap berat basah dan berat kering bawang merah serta jumlah umbi bawang merah. ZPT Atonik dengan konsentrasi 0,50 cc/1 dapat meningkatkan produktivitas bawang merah. Interval penyemprotan Atonik tidak berpengaruh nyata terhadap berat basah umbi, jumlah umbi, diameter umbi, dan berat kering umbi bawang merah. Terdapat pengaruh interaksi antara perlakuan konsentrasi dan interval penyemprotan Atonik terhadap diameter umbi bawang merah. Atonik dengan konsentrasi 0,25 cc/l yang disemprotkan pada umur 15-20-25-30 hari setelah tanam dapat meningkatkan diameter umbi bawang merah. Kata kunci: Bawang Merah, ZPT Atonik. AbstractThis research was aims to determine how the the effect concentration and the interval of spraying intervals of Atonik PGR and interaction effect both of them on the productivity of shallots. The study was conducted in the of Arjasa, Kecamatan Arjasa, Jember on the elevation ± 141 meters above the sea level in July 2010 to October 2010. The research design used was Factorials RCBD with the 3 replication. The first factor was the concentration Atonik (K) consisted of 4 levels namely: K1 = 0.25 cc / liter, K2 = 0.50 cc / liter, K3 = 0.75 cc / liter, K4 = 1.00 cc / liter. The second factor that of spraying interval (I) composed of the 3 level namely I1 = age 15-20-25-30 days after planting, I2 = age 15-25-35-45 days after planting I3 = 15-30-45 days old planting. The results indicated that the concentrations of Atonik had significant effect on fresh weight, dried weight and also amount of bulbs shallots. Atonik PGR concentration of 0.50 cc / 1 could improve the productivity of shallots crop. The interval of spray of Atonik PGR did not significantly affect to bulbs fresh weight, number of tubers, bulbs diameter, and the dried weight of shallots bulbs. Treatment effect of interaction occurred among treatment of concentrations and the intervals of spray of Atonik PGR was against the shallots bulbs diameter. Concentration of Atonik PGR on 0.25 cc / l which be sprayed on the age of 15-20-25-30 days after planted could improve the diameter of the bulbs shallots. Keywords: Shallots, Atonik PGR.
Substitution of Chemical Fertilizer with Organic MOL Fertilizer to Increase Crop Productivity Lestari, Bibit Lilik
Indonesian Journal of Agriculture and Environmental Analytics Vol. 3 No. 2 (2024): July 2024
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/ijaea.v3i2.10626

Abstract

Agriculture in Indonesia faces major challenges in terms of sustainability and productivity, especially with the high dependence on chemical fertilizers that can damage the soil in the long run. This study aims to determine the impact of chemical fertilizer substitution with MOL organic fertilizer on rice productivity in Village X, East Java. This research used a quantitative approach with a comparative case study. Data were collected during one rice growing season from two treatment groups using different fertilizers. Primary data were obtained through field observation, direct measurement, and sample analysis, while secondary data were collected from village reports and previous studies. Data analysis was conducted using descriptive statistics and Structural Equation Modeling (SEM). The results showed that chemical fertilizer increased rice productivity higher in the short term than MOL organic fertilizer. Independent T-test results showed significant differences, with chemical fertilizers producing significantly higher yields (t-value 12.45, p-value 2.306). However, the use of chemical fertilizers negatively impacts soil quality and the environment in the long run. In contrast, MOL organic fertilizer improved soil quality despite lower yields. SEM analysis showed that the substitution of chemical fertilizer with MOL organic fertilizer had a significant effect but with a smaller estimated coefficient compared to the use of chemical fertilizer. MOL organic fertilizer provides long-term benefits by improving soil fertility so that to achieve high production and protect the environment, a combination of using chemical fertilizers at optimal doses and gradually using organic fertilizers is highly recommended to support sustainable agriculture.
Penggunaan ZPT Organik Untuk Meningkatkan Produktivitas Tanaman Jagung di Lahan Kering Lestari, Bibit Lilik; Hariyanto, Dwika Nano
Agritrop : Jurnal Ilmu-Ilmu Pertanian (Journal of Agricultural Science) Vol. 22 No. 1 (2024): Agritrop: Jurnal Ilmu-Ilmu Pertanian
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/agritrop.v22i1.2108

Abstract

Zat Pengatur Tumbuh merupakan senyawa kimia alami atau sintetis yang dihasilkan oleh tanaman untuk mengatur pertumbuhan dan perkembangannya, ZPT sendiri memiliki jenis yang beragam, terutama yang dibuat oleh petani sendiri, Hal ini menjadikan daya tarik ke petani untuk dipelajari lebih mendalam tentang berbagai macam ZPT dalam meningkatkan hasil yang maksimal. Tujuan penelitian ini yaitu untuk mengetahui dampak dan interaksi jenis ZPT dan varietas terhadap pertumbuhan dan produksi Jagung. Penelitian dilaksanakan di desa Kamal, Arjasa, Jember. Penelitian ini menggunakan Rancangan acak kelompok Faktorial dengan dua faktor. Faktor kesatu adalah varietas terdiri dari Advanta 1,  Advanta 2 dan faktor kedua adalah ZPT Organik yang terdiri dari Kontrol, Asam Amino, PGPR, EFF, EFO, KNO3. Hasil penelitian menunjukkan Kombinasi ZPT (PGPR) dan Advanta 1 merupakan perlakuan terbaik terhadap pertumbuhan dan produksi jagung di lahan kering
Optimizing Nitrogen-Based Chemical Fertilizer Efficiency Through Microbial Organic Fertilizer (MOF) Integration for Sustainable Oryza sativa Productivity in Rainfed Lowland Fields Lestari, Bibit Lilik; Karyanti, Karyanti; Salma, Selly; Hariyanto, Dwika Nano
Glosains: Jurnal Sains Global Indonesia Vol. 7 No. 2 (2026): Glosains: Jurnal Sains Global Indonesia
Publisher : Sekolah Tinggi Agama Islam Kuningan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59784/glosains.v7i2.701

Abstract

Background: This study determines the best combination of nitrogen fertilizers and MOF (Microbial Organic Fertilizer) to sustainably increase rice productivity in rainfed lowland regions while minimizing N loss and improving soil health. Excessive application of nitrogen fertilizer contributes to soil degradation; however, MOF can help enhance nutrient uptake efficiency and reduce chemical dependency in rainfed agricultural areas due to its derivation from agricultural waste materials. Objective: To identify the nitrogen fertilization and MOF combination that maximizes Oryza sativa yield in rainfed lowlands while reducing chemical fertilizer use. Specifically, this research aimed to determine the ideal combination ratio of NPK Phonska and mycorrhizae that yields the highest productivity while maintaining an adequate Nitrogen Use Efficiency (NUE). Method: A Randomized Complete Block Design (RCBD) with 25 treatment combinations was conducted in Jember, East Java, Indonesia, as follows: NPK (0–100%) and MOF (0–100%) at three replications. Statistical analysis was performed using ANOVA and DMRT (5%). Results: The combination of 100% NPK and 50–100% MOF showed a significant increase in yield, with the highest yield recorded at 100% NPK and 25% MOF (9,545 kg/ha). The 25% MOF and 75% NPK combination yielded 5,462.5 kg/ha, representing a 25% reduction in fertilizer application without a significant decrease in yield (p < 0.05). Conclusion: The use of 25% MOF combined with 100% nitrogen fertilizer is beneficial for optimizing productivity, decreasing chemical fertilizer use, and promoting sustainable rainfed rice production.
Co-Authors Hariyanto, Dwika Nano Karyanti Karyanti, Karyanti Selly Salma