The Effect of Bioorganic Dosage with N, P Fertilizer on Rice Production of Sri Methods and Increased Nutrient Content of Paddy Soil Intensification

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

“…Menurut Erlinda et al (2019), aplikasi Trichoderma spp dalam pembuatan bioorganik plus mempercepat pertumbuhan dan meningkatkan hasil padi metode SRI. Elita et al (2020) melaporkan aplikasi Trichoderma spp pada pembuatan bioorganik meningkatkan kandungan hara tanah dan memodifikasi rizosfer dalam penyerapan nutrisi sehingga meningkatkan hasil padi dengan metode SRI.…”

The Effects of the Application of Trichoderma Asperellum and Biochar on Growth and Productivity of Rice Cultivated by the SRI Method and on Soil Quality

“…The application of organic fertilizers to lowland soil containing microbes increases the growth of rice plants and soil nutrient quality, which is influenced by the activity and population of soil microbes [4]. According to some studies [5] [6], the application of indigenous microbes had increased the yield of rice using the SRI method.…”

Pengaruh Aplikasi Trichoderma spp. Indigenous terhadap Hasil Padi Varietas Junjuang Menggunakan System of Rice Intensification

“…Aplikasi kompos bioorganik mengandung mikroba indigenous jamur Trichoderma spp., bakteri Pseudomonas fluorescens, dan Azotobacter sp. mampu meningkatkan hasil tanaman padi metode SRI dengan pupuk anorganik N dan P 50% dan meningkatkan kandungan hara tanah sawah (Elita et al 2020;Erlinda et al 2019).…”