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Water Management Practices for Higher Yield and Water Use Efficiency of the Early Maturing Rice Variety BINAdhan-7

Dr. A. A. Sarkar
PSO
BINA, Mymensingh

Dr. M. H. Ali
SSO
BINA

Dr. N. N. Karim
SSO
BINA

M.M. Rahman
SO
BINA

M. H. Zaman
PSO
BINA

Abstract/ Executive Summary:

The objective of the study was to observe the effect of different water management practices on the yield and water use efficiency in Boro season. Irrigation treatments were:T₁ = Continuous ponding (3-5 cm);T₂ = Alternate flooding and wetting at 3 days after disappearance of 5 cm ponded water; T₃ = Alternate flooding and wetting at 5 days after disappearance of 5 cm ponded water; T₄ = Alternate flooding and wetting at 7 days after disappearance of 5 cm ponded water. The results revealed that irrigation treatments did not show any yield variation except Rangpur . At Magura, the treatments could not be followed due to failure of irrigation pump, and long-term water stress was experienced in all treatments. At Ishurdi, the continuous ponding treatment produced the highest yield (4.38 t ha^-1). At other locations, treatment T₃ (irrigation at 5 days after disappearance of ponded water) produced the highest yield (5.06 t ha^-1& 4.76 t ha^-1). Water savings under this strategy is about 60 % at Mymensingh, 56% at Ishurdi and 57% at Rangpur, compared to continuous ponding condition. Thus, the results indicate that the Binadhan-7 does not require continuous ponded water for its optimum yield but can be allowed to dry upto 5 days from disappearance of water. This can save about 60% irrigation water with insignificant yield losses compared to continuous ponding irrigation method.

Keywords: Approaches of irrigation scheduling, Water saving, Soil-water, Rice

Location: Mymensingh, Rangpur, Ishurdi, Magura

Start Date:

End Date:

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

To observe the effect of different water management practices on the yield and water use efficiency of Binadhan-7 in Boro season.

Methodology:

Irrigation treatments were:T₁ = Continuous ponding (3-5 cm);T₂ = Alternate flooding and wetting at 3 days after disappearance of 5 cm ponded water; T₃ = Alternate flooding and wetting at 5 days after disappearance of 5 cm ponded water; T₄ = Alternate flooding and wetting at 7 days after disappearance of 5 cm ponded water. Irrigation treatments were:T₁ = Continuous ponding (3-5 cm);T₂ = Alternate flooding and wetting at 3 days after disappearance of 5 cm ponded water; T₃ = Alternate flooding and wetting at 5 days after disappearance of 5 cm ponded water; T₄ = Alternate flooding and wetting at 7 days after disappearance of 5 cm ponded water.

Source of Information: Annual Report 2008-09, Bangladesh Institute of Nuclear Agriculture(Mymensingh), pp.250

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The results indicate that the Binadhan-7 does not require continuous ponded water for its optimum yield but can be allowed to dry upto 5 days from disappearance of water. This can save about 60% irrigation water with insignificant yield losses compared to continuous ponding irrigation method.

Knowledge Management: Report/Proceedings