Improving the seed production yield in PhilRice Negros [Philipines] through utilization of nutrient management tools
2018
Mondejar, C.L.C. | Osano-Palanog, M.J. | Pantin, F.L.A. | Bello, G.E. | Dogeno, L.A.G. | Parina, C.J. | Norbe, M.A.D. | Austria, R.F. | Etchon, M.A. | Palanog, A.D.
In order for PhilRice Negros [Philippines] to continuously satisfy and sustain seed requirements in the Visayas, assessment of the current nutrient status of the seed production areas of PhilRice Negros is important. Information on the field situation is significant for appropriate fertilizer recommendations to achieve the target of increasing the productivity levels of the station. Site-specific nutrient management for the seed production of PhilRice Negros will enable to dynamically adjust fertilizer use, by supplying optimum amounts of nutrients at critical time points in the crops' growth to produce high yields. Nutrient management tools namely Rice Crop Manager (RCM), Minus-One Element Technique (MOET) and Leaf Color Chart (LCC) were used to diagnose the actual and current nutrient status in the seed production area. Recommendations from RCM and MOET were considered for the amount and type of fertilizer applied. And, LLC were used to identify when will be the best time to apply fertilizers. The physical characteristics of the sites with regards to position in the landscape, irrigation and drainage pattern were considered in the identification of sampling points representing the variability of the site. Nitrogen was the most obvious deficient nutrient in the MOET set-up, which agreed to the rate of nitrogen recommended by the RCM. All areas were found to be significantly deficient in nitrogen. Phosphorus was found to be deficient in fields of Group 1. Likewise, phosphorus, zinc and copper were found deficient in the fields of Group IV. The data were consolidated and used to generate the fertilization map and guide of the seed production areas in PhilRice Negros.
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