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All Journal Journal of Applied Agricultural Science and Technology Agroteknika
Agustamar Agustamar
Politeknik Pertanian Negeri Payakumbuh
Agriculture, Biological Sciences & Forestry Energy Engineering Environmental Science Mechanical Engineering

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The Effect of Bioorganic Dosage with N, P Fertilizer on Rice Production of Sri Methods and Increased Nutrient Content of Paddy Soil Intensification Nelson Elita; Rita Erlinda; Agustamar Agustamar
Jurnal Ilmu dan Teknologi Terapan Pertanian Vol 4 No 2 (2020): August 2020
Publisher : Politeknik Pertanian Negeri Payakumbuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32530/jaast.v4i2.162

Abstract

The System of Rice Intensification (SRI) operates under aerobic conditions so that helpful microbes are active and abundant. Effective N-fixing rhizobacteria and indigenous phosphate solubilizers Azotobacter and Pseudomonas grow well in the organic compost Bioorganic because it resembles their natural habitat. The purpose of this research is to find out the right dose of Bioorganic fertilizer and the most N and P doses needed to optimize the SRI method of rice crop production. This research uses a factorial randomized block design. The first factor is Bioorganic fertilizer dosage (1, 3, and 6) t ha-1. The second factor is the dose of N and P fertilizers to use (0, 25, 50, and 75)% of the recommended dosage. The results of this study inform you about Bioorganic fertilizers containing Azotobacter and Pseudomonas fluorescens indigenous. Azotobacter bacteria produce the availability of nutrients N, which functions as Plant Growth Promoting Rhizobacteria (PGPR), these bacteria quickly colonize the root system, regulate hormonal balance, nutrition, and encourage resistance to pathogens. Pseudomonas fluorescens bacteria acts as a provider of phosphorus and nutrients in the generative phase. Both of these microbes have a role in SRI method of rice plant metabolism to increase vegetative and generative growth of rice plants with SRI method with production reaching production of 8.80 t ha-1 in B2 (3 t ha-1) and N2P2 (50%) with the production of 9.21 t ha-1, so the use of inorganic fertilizers is more efficient. Rice soil nutrient status increased pH from slightly acidic to neutral, C-organic increased from 1.27% (low) to 9.30-10.68% (high), N total from 0.13% (low) to 0.45-0.58% (high), P- available from 13.0 ppm reaching 18.0-20.0 ppm (moderate), the Bioorganic application has not been able to increase the C: N, CEC value and base saturation. Nutrient uptake of N and P on the leaves of rice plants is better at dose B2. Bioorganic applications increase the nutrient content of paddy soils planted with the SRI method compared to initial soil nutrient analysis.
Identifikasi Molekuler Trichoderma spp. Indigenous dari Rizosfer Beberapa Varietas Padi Asal Kabupaten Lima Puluh Kota dan Kota Payakumbuh Nelson Elita; Eka Susila; Agustamar Agustamar; Rizki Rizki
Agroteknika Vol 5 No 1 (2022): Juni 2022
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/agroteknika.v5i1.114

Abstract

Peranan mikroba meningkatkan hasil padi metode SRI beragam dipengaruhi jenis, kombinasi mikroorganisme, daya adaptasi, dan teknik aplikasi. Hasil penelitian menunjukkan aplikasi mikroba indigenous mampu meningkatkan hasil tanaman padi metode SRI. Jenis mikroba tanah jamur Trichoderma spp. umumnya banyak ditemukan merupakan jamur tanah biasanya ditemukan pada rizosfer tanaman, termasuk rizosfer tanaman padi. Tujuan penelitian untuk mengetahui jenis Trichoderma spp. indigenous secara makroskopis dan molekuler asal rizosfer beberapa varietas padi di Kabupaten Lima Puluh Kota dan Kota Payakumbuh. Metode yang digunakan adalah eksplorasi, isolasi dan karakterisasi. Eksplorasi Trichoderma spp. indigenous diambil dari tanah rizosfer padi di Kabupaten Lima Puluh Kota dan Kota Payakumbuh. Isolasi dan karakterisasi jamur Trichoderma spp. indigenous dilakukan di laboratorium Mikrobiologi Politeknik Pertanian Negeri Payakumbuh dan teknik molekuler dengan Amplifikasi PCR di Balai Penelitian Tanaman Buah Tropika di Solok. Hasil penelitian diperoleh isolat T1-KK (Kuriak Kuning), T2-PW (Pandan Wangi), T3- J (Junjuang) ketiganya asal Kabupaten Lima Puluh Kota, T4- S (Sokan), T5-KM (Ketan Merah), T6-SB (Siliah Baganti) asal Kota Payakumbuh. Hasil amplifikasi PCR diperoleh jenis isolat Trichoderma spp dari masing-masing isolat tersebut adalah T1-KK jenis jamur Trichoderma asperellum, T2-PW jenis jamur Trichoderma harzianum dan Trichoderma asperellum, T3-J jenis jamur Trichoderma harzianum dan Trichoderma asperellum, T4-S jenis jamur Thichoderma asperellum, T5-KM jenis jamur Trichoderma harzianum dan Trichoderma asperellum, dan T6-SB jenis jamur Trichoderma harzianum dan Trichoderma asperellum.
Co-Authors Eka Susila Elita, Nelson Rita Erlinda Rizki Rizki