Browsing by Author "Millicent I. Secretaria"

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    Commercial Production and Chemical/Physical Characterization of Natural and Nutritious Coconut Sap Food Products
    (2008) Millicent I. Secretaria; Timoteo A. Adon
    The processing of natural and nutritious coconut sap juice and coconut sap concentrate for commercial production was conducted by the members of the Samahang Magniniyugan ng Tawan-tawan (SMT) at Barangay Tawan-tawan, Baguio District, Davao City, Southern Mindanao, Philippines from February to May, 2007. The processing of coconut sap juice and concentrate involves simple, easy to follow procedures and few equipment are required. Results of the chemical analysis revealed that coconut sap juice, an oyster-white liquid and coconut sap concentrate, a sticky, golden orange syrup has 84.3% and 25% moisture content; 0.24% and 0.94% crude protein; 18.99 and 63.79 mg/100 mg sodium (Na); 0.85 and 1.51 mg/100 g calcium (Ca) and 0.05 and 0.33 mg/lOOg iron (Fe), respectively indicating that these coconut sap food products are nutritious and good for one's body. While physical (color) analysis showed that these products are pure and natural since no food coloring was detected. A partial budgeting analysis on the profitability of producing coconut sap juice and coconut sap concentrate over the traditional fermented toddy indicated an additional profit or net income of Phpl9,728.00 and Php21,402.00 per month, respectively (Php41 = $). The benefits derived from the commercialization of the technology on coconut sap food products by the adaptors were discussed. Factors for successful adoption and commercialization of coconut sap juice and concentrate were likewise recommended
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    Integrated Soil Fertility Management (ISFM) on Coconut + Lanzones (Lansium domesticum Corr) Agro-ecosystem in Southern Mindanao, Philippines (1993 - 2007): with Emphasis on the Multi-nutrient Coconut- Specific Mineral Fertilizer. Part I. Crop Productivity, Quality and Profitability
    (2009) Severino S. Magat; Millicent I. Secretaria; Junaldo A. Mantiquilla; Rogaciano Z. Margate
    A 15-year (1993-2007) integrated soil fertility management (ISFM) of coconut + lanzones fruit agro-ecosystem was conducted using five fertilizer combinations (PCs) in a dominantly tropical wet climate (Koppen-Geiger Climate Classification Kottek et al 2006) of Davao, Southern Mindanao (07°05'N 125°37'E), It aimed to determine the response of this agro-ecosystem to the combined multi-nutrient fertilizer N+P+K+CI+S+B (14-5-20-0.02B-15.5C1-4.5S) and organic fertilizer (OF) sources at different ratios (IF:OF at 1:0; 1:2; 2:4 and 4:4) on coconut yield, lanzones growth, yield and fruit quality; soil properties; leaf nutrient levels; total farm productivity and profitability. The application of even the lowest rate of the multi-nutrient mineral fertilizer (MNF) at 1 kg/tree/yr produced an appreciable improvement in annual nut and copra yields per ha, from benchmark 8,890 nuts or 1.6 t to levels 3 - 4 t copra after 1-2 years of MNF applications. The average sustained yields of 17,000 nuts or 4 t copra per ha/yr was achieved over the next 12 years at this low MNF input. Application of the combined MNF and OF enhanced lanzones fruiting. Except in 2004, fruit harvest increased from year 8 to year 14 with FCl and FC2 producing higher yields, and quality of fruits (sweetness, brix reading) improved at lower rates of MNF (0.38kg/tree) and organic fertilizers. The ISFM of the agro-ecosystem is productive and sustainable even at low input of the MNF developed for coconut capable of generating large volume of biomass for a stable soil fertility. Overall, the profitability indices as benefit-cost ratio (BCR) and internal rate of return (IRR) showed that the best fertilizer application for both crops was FCl------the lowest annual rate of MNF (coconut® Ikg/tree and lanzones @ 0.38/tree), without organic fertilizer application. At 18% interest, the FCl has the highest BCR of 2.5, IRR of 328% and NPV of PhP115,645 per ha. A fertilization guide for the coconut + lanzones agro-ecosystem is presented based on this long-term research work. (1USD = 45PHP)