This study was carried out based on a question raised in collaboration with the UNESP team regarding the feasibility of cultivating corn, a nitrogen-demanding crop, under Brazilian field conditions by using TSP (Triple Superphosphate) as a basal phosphate fertilizer at planting instead of granular MAP (Current practice). To explore this, we introduced the foliar application of NutriDrop MAP for its proven antistress effects, and a strain of Azospirillum brasilense provided by Embrapa to enhance nitrogen use efficiency. The goal was to evaluate the performance of this combination (TSP + NutriDrop MAP + nitrogen-fixing bacteria) under both optimal nitrogen doses and a 25% nitrogen dose reduction. This combination was tested to determine its impact on corn yield and overall efficiency, as well as its economic viability under Brazilian agricultural conditions. Results: - Grain Yield: The results showed that the combination of Azospirillum brasilense inoculation and Nutridrop MAP foliar application significantly increased grain yield in corn. The highest yields were observed in treatments where both inoculation and tMAP application were combined, particularly when 100% of the recommended nitrogen dose was applied. - Return on Investment (ROI): The profitability of each treatment was analyzed by calculating the return on investment (ROI). The combination of Azospirillum brasilense and tMAP application resulted in higher ROI compared to the control treatments, showing that this combination is economically viable for farmers. - Profit: In terms of profit per hectare, treatments with both inoculation and tMAP, especially those receiving 100% nitrogen, showed a significant profit increase compared to the control treatments. Conclusions : - Possible to start a corn season with TSP as 100% basal P fertilizer with an earlier urea application (no phytotoxicity in our case); - the combo (TSP + Nutridrop MAP + N fixing bacteria) is a good combination to improve the productivity and rentability of cropping systems; - Even under N reduction dosis the combo could be a good practice to compensate the N drop; Based on the collected data, the results are promising, indicating that this approach holds great potential. However, to fully validate these findings, it is recommended that the study be repeated across multiple growing seasons and under varying agroclimatic conditions. This would provide a more comprehensive understanding of its effectiveness and ensure the consistency of the results across different environmental settings. # TSP # Corn # Brazil # UNESP # OCP Nutricrops # N fixing # Soluble MAP
Well done Amine. Interesting scientific poster and article. Go ahead !!
An impressive job Amine Jamal
Agri Devlopment Head NUTRIBIOTEK
2moInteresting results Amine !! It would be great to explore coating TSP with A.brasilense instead of separate application of each