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Demonstration of Water Management Technologies in the Farmer's Field-levee Management for Rain Water Utilization in T.aman Rice Cultivation -2002

M Nurul Islam
CSO and Head
IWMD, BBRI, Gazipur

Abstract/ Executive Summary:

A field was taken to determine the impact of effective rainfall and yield maximization in T.Aman season.This study was conducted in farmer’s field at Kapasia, Gagipur area in T.Aman, 2001 season to adopt 15 cm levee height for sufficient rainwater conservation for effective use of rain fall and maximizing the T.Aman yield under rainfed condition. The variety was BRRI dhan39. Total rainfall for the whole growing period was 1057 mm. Higher yield (3468 kg/ha) and water productivity (3.28) was founded in research management plots. This may be due to 15 cm levee management and balance fertilizer use. From the study it indicates that the 15 cm levee height can effectively used for rainfall conservation and yield maximization in T.Aman season. In T.Aman, 2001 sufficient rainfall occurred and one or two times the levee overflowed. In the field level, farmers are interested to manage the levee, but in Kapasia area crabs creates a main problem to manage the levee.

Keywords: Water management, Levee management, Rain water utilization, T.Aman rice.

Location: Farmer’s field at Kapasia, Gagipur

Start Date: 01-07-2001

End Date: 30-06-2002

Program Area: Crop-Soil-Water Management

Commodity: Water management

Objectives:

To determine the impact of effective rainfall and yield maximization in T.Aman season.

Methodology:

This study was conducted in farmer’s field at Kapasia, Gagipur area in T.Aman, 2001 season to adopt 15 cm levee height for sufficient rainwater conservation for effective use of rain fall and maximizing the T.Aman yield under rainfed condition. The variety was BRRI dhan39. Three research managed plots were cultivated and maintained 15 levee height during the T.Aman growing season. Also three farmers managed plots of the same variety was monitored to compare the levee height, water conservation, seepage and percolation rate and yield. Thirty to thirty five days old seedlings were used with the spacing of 20×20 cm and fertilizers were applied @ 70:20:35 kg/ha of NPK. In farmers managed plots the average fertilizers were applied @ 75:10:15 kg/ha of NPK. Rainfall data was measured in the experimental site with a rain gauge and seepage and percolation data was measured by using seepage meter. A five square meter sample area was harvested by taking one square meter from different locations of each plot and grain weight was adjusted at 14% moisture level.

Source of Information: BRRI Annual Internal Review 2002

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The average seepage and percolation rate was 7.89 and 5.21 mm/day for research management and farmers management, respectively. It indicates that the seepage and percolation rate increase with the increase of depth of standing water. It was also observed that the number of days for disappear of standing water increases with the levee height. The study indicates that the 15 cm levee height can effectively used for rainfall conservation and yield maximization in T.Aman season. In T.Aman, 2001 sufficient rainfall occurred and one or two times the levee overflowed. In the field level, farmers are interested to manage the levee, but in Kapasia area crabs creates a main problem to manage the levee.

Knowledge Management: Report/Proceedings