Response of aromatic and non-aromatic rice on organic and inorganic fertilization

Issue Date

12-2017

Abstract

Field experiments were conducted to study the effects of different fertilizers (control or no fertilizer, indigenous nitrogen supply (INS) indigenous phosphorus supply (IPS), indigenous potassium supply (IKS), LCC-based 2, rice straw, and chicken manure) on the agronomic characters of three rice varieties (Burdagol-Laguna type, a modern aromatic variety; Gal-ong, a pigmented aromatic traditional variety; and PSB Rc82, a modern non-aromatic variety. The study was conducted during the dry and wet season of 2014 and 2015 in irrigated lowland ecosystem. The application of higher N levels using inorganic fertilizers (INS, IKS, LCC-based 1, LCC-based 2) gave the highest yields in both Burdagol (4.63-5.44 t haˉ¹ and PSB Rc82(4.58-5.16 t haˉ¹). This can be attributed to the high number of productive tillers and number of filled grains per panicle. Gal-ong gave the lowest yield (2.40 t haˉ¹) due to its poor tillering ability although it produced the highest number of filled grains per panicle. The yield and number of filled grains per panicle of all the three varieties were significantly higher during the wet season (WS) than during dry season (DS). This may be due to the availability of rainfall or more water during the wet season. Gal-ong which is a traditional aromatic variety from Kibungan, Benguet in the Cordillera Administrative Region, Philippines can be planted in the irrigated lowland rice ecosystem.

Source or Periodical Title

Philippine Journal of Crop Science

ISSN

0115-463x

Volume

42

Issue

3

Page

49-65

Document Type

Article

Frequency

tri-quarterly

Physical Description

graphs, tables

Language

English

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