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Water Management in Hybrid Rice Production-2001

Dr Manoranjan K Mandal
Senior Scientific Officer
Irrigation and water Management Division, BRRI

Dr M Mahbubul Alam
Senior Scientific Officer
Irrigation and water Management Division, BRRI

Abstract/ Executive Summary:

The study was conducted in boro season at BRRI farm, Gazipur. Objecives of this study were to determine the yield performance of hybrid rice under different water management practices and to determine the irrigation indices for different water management practices. The study reveals that there was no significant difference in yield for hybrid and high yielding rice varieties under different water management practices. By applying 7 cm irrigation 3 days after disappearing of standing water from the field, about 25% of irrigation water can be saved compare to maintaining 3-7 cm standing water. This practice may help to increase irrigated area without sacrificing yield.

Keywords: Water management, Hybrid rice, Yield

Location: BRRI farm, Gazipur

Start Date: 01-07-2000

End Date: 30-06-2001

Program Area: Crop-Soil-Water Management

Commodity: Water management

Objectives:

To determine the yield performance of hybrid rice under different water management practices
To determine the irrigation indices for different water management practices

Methodology:

The study was conducted in boro season at BRRI farm, Gazipur. Two BRRI developed hybrid lines-IR69690H, IR68877H and one high yielding rice-BRRI dhan29 were cultivated in split plot design and replicated thrice. The treatments were: T₁=Continuous standing water 3-7 cm; T₂=7 cm irrigation water applied after disappearing of standing water; T₃= 7 cm irrigation water applied 3 days after disappearing of standing water.

Source of Information: Proceedings of BRRI Annual Internal Research Review, 2001

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Considering main plot yield, it was observed that irrigation disappearing of standing water and irrigation 3 days after disappearing of standing water saved about 11.5% and 25.2% of irrigation water respectively compared to standing water. The yield reduction in irrigation disappearing of standing water and irrigation 3 days after disappearing of standing water to continuous standing water was 0.63% and 2.67% respectively. This implies that by applying irrigation 3 days after disappearing of standing water from the field, considering amount of irrigation water can be saved without sacrificing significant yield. This water may be used to increase the irrigated area for crop production.

Knowledge Management: Report/Proceedings