Leveraging Rice Crop Manager through Application of Biofertilizers in Rice Production in Isabela
DOI:
https://doi.org/10.65339/ijsair.V2.I2.297Keywords:
Biofertilizers, Grain yield, Rice Crop Manager, Soil fertility, Sustainable agriculture, Technology adoptionAbstract
This study evaluated the combined effects of Rice Crop Manager (RCM) fertilizer recommendations and biofertilizers (EMAS and BioPrime) on rice growth, yield, soil fertility, profitability, and farmer adoption in Isabela, Philippines. Anchored on Site-Specific Nutrient Management (SSNM) and Integrated Nutrient Management (INM), the study employed a Randomized Complete Block Design with seven treatments and three replications, alongside a descriptive survey of 186 rice farmers. Agronomic data, soil properties, and economic indicators were measured, while a structured questionnaire assessed awareness, adoption, and constraints. Results showed that most growth parameters did not significantly differ among treatments, while root length and unfilled grains were significantly improved by biofertilizer application. Grain yield was highest under RCM-only treatments, particularly at 100% and 75% rates, while biofertilizer treatments showed moderate performance but did not surpass RCM alone. Economic analysis revealed that 75% RCM produced the highest return on investment, indicating cost efficiency without yield loss. Soil analysis showed improved phosphorus availability and stable soil fertility across treatments. Socioeconomic findings indicated high awareness but moderate adoption of RCM and low use of biofertilizers, constrained by cost, knowledge gaps, and accessibility issues. The study concludes that RCM remains the most effective and economically viable nutrient management strategy, while biofertilizers offer complementary benefits for root development and grain filling but require long-term evaluation. This study contributes to SDG 2 (Zero Hunger), SDG 8 (Decent Work and Economic Growth), SDG 12 (Responsible Consumption and Production), and SDG 13 (Climate Action) by promoting efficient nutrient management and sustainable agricultural practices. Its sustainability impact lies in improving farmer profitability, enhancing soil health, and supporting environmentally responsible rice production systems.
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