PRODUCTIVITY OF LOWLAND RICE (ORYZA SATIVA L. VAR. NSIC RC120) USING DIFFERENT ORGANIC FERTILIZERS WITH FISH AMINO ACID (FAA) SUPPLEMENT

Abstract

The application of organic fertilizer on lowland rice could be enhanced when supplemented with FAA. This study evaluated the effects of different organic fertilizers on the growth and yield performance of lowland rice and identified what type of organic fertilizer would give better growth and yield on lowland rice. The experiment was conducted in pots and laid out in a Complete Randomized Design with three replications. Each replication was divided into five treatments, with three (3) experimental pots. The treatments were: T₁- Control, T₂- Chicken Manure (10 t ha^-1) + FAA, T₃- Carabao Manure (10 t ha^-1) + FAA, T₄- Vermicast (10 t ha^-1) + FAA, T₅- Inorganic fertilizer 90-60-60 kg ha^-1 N, P₂O₅, K₂O. The result found that rice plants supplemented with FAA did not influence the heading and maturity of NSIC Rc120. Plants applied with chicken manure + FAA produced longer plant height (cm) and strawweight (ghill^-1), significantly similar to plants applied with inorganic fertilizer alone at 90-60-60 kg ha^-1 N, P₂O₅, K₂O. Moreover, the application of chicken manure + FAA produced a greater number of productive tillers and a grain yield comparable to plants applied with inorganic fertilizer at the rate of 90-60-60 kg ha^-1 N, P₂O₅, K₂O. Hence, chicken manure at 10 t ha^-1 + FAA can be recommended as a substitute for inorganic fertilizer to rice as it provides comparable grain yield at 19.39 and 22.33 g per hill or equivalent to 4.85tha^-1 5.58tha^-1, respectively.