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Development of site-specific nutrient management (SSNM) recommendations for irrigated rice in Region VI (Capiz, Aklan, and Antique)

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WVSU-ResearchJournal-2012-v001-n01-GabineteFM-FLT.pdf (48.94Mb)
Date
2012-06
Author
Gabinete, Greta ORCID
Peñaranda, Hector
Gutierrrez, Benjamin
Buresh, Roland ORCID
Agrovoc term
site-specific nutrient management AGROVOC
nutrient management AGROVOC
rice AGROVOC
decision support AGROVOC
Geographic name
Capiz TGN
Aklan TGN
Antique TGN
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Abstract
Site-specific nutrient management (SSNM) is a plant-need-based approach for optimized application of nitrogen, phosphorus, and potassium fertilizers. This study developed and evaluated SSNM recommendations for irrigated rice in Aklan, Antique, and Capiz. Field trials using the nutrient omission plot technique provided information to calibrate Nutrient Manager for Rice, a computer-based decision tool. Additional field trials compared SSNM-based fertilizer recommendations of Nutrient Manager with farmer’s fertilizer practices. Measured soil properties were not well related to rice yields measured in nutrient omission plots suggesting soil properties are not good predictors of nutrient supply in rice soils. Relationships of yield in nutrient omission plots with yield in full fertilized plots were comparable to relationships from other regions of the Philippines already used in Nutrient Manager. This provides confidence that Nutrient Manager is well adapted for Region 6. Fertilizer management based on Nutrient Manager increased yield by 370 kg per hectare per season. Results suggest an increased income of PhP 4500 per hectare per season is a realistic target with Nutrient Manager. When factors other than nutrients – such as pests, diseases, or poor crop management – limit rice yield, improved nutrient management should be combined with practices to overcome these constraints.
URI
http://repository.wvsu.edu.ph/handle/123456789/160
Recommended Citation
Gabinete, G., Peñaranda, H., Gutierrrez, B., & Buresh, R. (2012). Development of site-specific nutrient management (SSNM) recommendations for irrigated rice in Region VI (Capiz, Aklan, and Antique). WVSU Research Journal, 1(1), 16-31.
Type
Article
ISSN
2244-4335; 2651-6659
Keywords
Site-specific nutrient management irrigated rice Western Visayas SSNM PCARRD IRRI UPLB DA FFP Farmer's fertilizer practice Nutrient Manager for Rice
Subject
Decision support systems OCLC - FAST (Faceted Application of Subject Terminology) Rice--Fertilizers OCLC - FAST (Faceted Application of Subject Terminology) Rice--Research OCLC - FAST (Faceted Application of Subject Terminology)
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  • WVSU Research Journal, 01(01), June 2012 [2]

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