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Integrated Crop, Nutrient and Water Management in North-west Region of Bangladesh-improving Water Use Efficiency and Fertilizer Use Efficiency for Wheat Cultivation-2002

Dr M A Sattar
CSO and Head
IWMD, BBRI,Gazipur

M Moniruzzaman
PSO
IWMD, BBRI,Gazipur

Dr Golam Wahed Sarker
PSO
Economics division, BBRI,Gazipur

Abstract/ Executive Summary:

This study was undertaken at GKF site, Kurigram and at RDRS site, Pirganj, Thakurgaon under ICM, PETRRA sub-project. Fertilizer and irrigation interaction of wheat production and water productivity at GKF and RDRS sites were stated that for standard dose of fertilizer use and for four irrigation and rainfall amounting 349 mm water applied for the wheat growing season, obtained the highest yield (4942 kg/ha), though its water productivity was slightly low (14.16 kg/ha-mm) in compare to the other treatment combinations. There was a significant yield difference among the treatment combinations. For standard dose of fertilizer use and for four irrigation and rainfall amounting 335 mm water applied for the wheat growing season, obtained the highest yield (3233 kg/ha), though its water productivity was slightly low (9.65 kg/ha-mm) in compare to the other treatment combinations. There was a significant yield difference among the treatment combinations. The obtained wheat yield is competitive with the potential wheat yield (3.5 to 4.0 t/ha) of the study areas. For optimum yield water productivity varied from 10-13 kg/ha-mm. At GKF site, the highest yield was 3819 kg/ha with high water productivity (11.10 kg/ha-mm). Similarly, at RDRS site, the highest wheat yield was 3676 kg/ha with high water productivity value (11.21 kg/ha-mm). The highest yield was 3533 kg/ha with four irrigation and the total applied water was 327 mm, but its water productivity was low (10.80) in compare to other treatment combinations in RDRS site.

Keywords: Integrated crop management, Nutrient and Water Management, Water use efficiency, Fertilizer use efficiency

Location: GKF site, Kurigram and RDRS site, Pirganj, Thakurgaon

Start Date: 01-07-2001

End Date: 30-06-2002

Program Area: Crop-Soil-Water Management

Commodity: Fertilizer

Objectives:

Determine the optimum number of irrigation and water use efficiency for achieving maximum yield;
Interaction of irrigation water levels and fertilizer doses on wheat production under recommended management; and
To find out the economically viable combination of irrigation and fertilizer applications.

Methodology:

This study was undertaken in Rabi season 2001 – 2002 at GKF site, Kurigram and at RDRS site, Pirganj, Thakurgaon under ICM, PETRRA sub-project to determine the optimum number of irrigation and water use efficiency for achieving maximum yield; Interaction of irrigation water levels and fertilizer doses on wheat production under recommended management; and to find out the economically viable combination of irrigation and fertilizer applications. At each site, 3 shallow tubewells (STW) based farmers were selected for this study. The soil texture of the study sites was determined. The wheat variety was Kanchan. Irrigation levels were: Two irrigation, CRI (18-21 DAS) + (35-40 DAS),Three irrigation, CRI + (35-40 DAS) + (55-60 DAS) and Four irrigation, CRI + (35-40 DAS) + (55-60 DAS) + (75-80 DAS). Fertilizer doses were: 100 : 60 : 40 NPK kg/ha (Standard dose), 60 : 36 : 24 NPK kg/ha ( Medium doses) and Farmers practices. The fertilizers were applied as per recommendation. The amount of water applied for each irrigation was measured by volumetric method or V-Notch and the rainfall data was recorded for the crop-growing season. The yield and yield contributing data of wheat for each water treatment was measured following the standard method. The water use efficiency was also calculated for each treatment combinations.The total rainfall was about 64 mm and 60 mm during the whole wheat-growing season in Kurigram and Pirganj, respectively. The rainfall occurred at the tillering stage to reproductive stage of wheat, which helped increasing yield under rainfed condition. The soil texture of those sites is silty loam to sandy loam.

Source of Information: BRRI Annual review 2002

Article Link (Online Journal):

Funding Source:

1. World Bank	Budget:
2.	Budget:
3.	Budget:

Total Budget (Tk.) :

Achievement/Findings:

It was concluded that, in both the sites i.e. GKF site, Kurigram and RDRS site, Pirganj, Thakurgaon four irrigations with standard fertilizer doses in every aspects gave the highest with high water productivity.

Knowledge Management: Report/Proceedings