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Performance of Wsr in T. Aman Season: Rangpur-1997

Dr M A Kashm Khan
SSO
Irrigation and water Management Division, BRRI, Gazipur-1701, Bangladesh.

Dr M A Sattar
PSO
Irrigation and water Management Division, BRRI, Gazipur-1701, Bangladesh.

Abstract/ Executive Summary:

At Mohipur farm, BWDB, Rangpur, the experiment was conducted to find out the effect of supplemental irrigation on WSR in T.Aman and to test the adaptability of WSR in T.Aman season with three water treatments of which T₁ was rainfed, T₂ and T₃ were 7 days and 10 days after disappearing of standing water. In total water required were 950 mm, 1300 mm and 1200 mm for treatments T₁, T₂ and T₃ including 300 mm for land preparation and 650 mm of effective rainfall. About 350 mm and 250 mm water were used as supplemental for treatments T₂ and T₃, respectively. Under supplemental irrigation T₂ and T₃ yielded 37% and 20% higher than rainfed T₁.

Keywords: WSR, TPR, Water productivity, Water use efficiency

Location: At Mohipur farm, BWDB, Rangpur

Start Date:

End Date:

Program Area: Crop-Soil-Water Management

Commodity: Rice, Water management

Objectives:

To find out the effect of supplemental irrigation on WSR in T.Aman and
To test the adaptability of WSR in T.Aman season

Methodology:

the experiment was conducted with three water treatments of which T₁ was rainfed, T₂ and T₃ were 7 days and 10 days after disappearing of standing water. BR 11 was used. Fertilizer doses were 100:80:60:20 kg/ha of NPKS. All P and K were applied during land preparation. N was applied in 4 equal splits as topdress. 1^st, 2^nd and 3^rd topdresses were used after 20 days of seeding, early vegetative stage and late vegetative stage, respectively. Final topdress was applied at panicle initiation stage of the crop. Gypsum was applied as topdress after 35 days of sowing the seeds. Ronstar was used to control weed and diazinon 60 EC for insects.

Source of Information: Proceedings of the BRRI Annual Internal Review for 1997, BRRI, Gazipur-1701, Bangladesh

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Under supplemental irrigation, irrigation at 7 days and 10 days after disappearing of standing water. yielded 37% and 20% higher than rainfed.

Knowledge Management: Report/Proceedings