Development of sustainable technologies and approaches for adaptive rice-based agricultural systems (DSTAR): influence of organic/bio-organic fertilizers on populations of arthropods (pests/natural enemies) and major diseases in irrigated/rainfed rice
Date
2014
Abstract
Field experiments were conducted at CES [Central Experimentation Station]-UPLB [University of the Philippines Los Baños] and farmer's rainfed rice field in Barangay [village] San Jose, San Antonio, Quezon [Philippines] to compare the effect of bio-organic fertilizer and biocon agents on rice sheath blight severity, arthropods count (pests/natural enemies), agronomic character and grain yield. During the dry season 2014, generally, more natural enemies were counted on Biocon and Bio N treated plants. Under CES-UPLB condition, the dry and wet season trial showed that grain yield of Biocon and Bio N treatments were comparable with inorganic fertilizer treatment. Sheath blight severity Biocon and Bio N treatments were comparable with inorganic fertilize r but significantly low compared with the untreated control. Generally, the profitability with bio-organic fertilizer and biocon agent usage can still be realized. Only 50% of the required inorganic fertilizer was applied with Bio N and Biocon treatments with grain yield comparable with inorganic fertilizer alone. However, the possible net return and return on investment does not include the external, off-farm costs of environmental damage caused by chemical fertilizer.
Language
English
Document Type
Article
Recommended citation
Sinohin, A. M. and Gonzales, P. G., "Development of sustainable technologies and approaches for adaptive rice-based agricultural systems (DSTAR): influence of organic/bio-organic fertilizers on populations of arthropods (pests/natural enemies) and major diseases in irrigated/rainfed rice" (2014). Report. 562.
https://www.ukdr.uplb.edu.ph/reports/562
Pages /Collation
16 leaves
En – AGROVOC descriptors
ORYZA SATIVA; RICE; ORGANIC FERTILIZERS; ARTHROPODA; NATURAL ENEMIES; PESTS OF PLANTS; DRY SEASON; WET SEASON; AGRONOMIC CHARACTERS