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Maximizing Yield and Rain Water Utilization by Advancing Cropping Practices in Aman Season for Rice-wheat System.

M Nurul Islam
CSO & Head
CSO

Dr M A Sattar
Head and Chief Scientific Officer
CSO

Dr Golam Wahed Sarker
SSO
IWM Division, BRRI

M Moniruzzaman
SSO
IWM Division, BRRI

Abstract/ Executive Summary:

A study was conducted at Sadar Upzila Chuadanga with the objective of Maximum rainwater utilization for increasing productivity in T. Aman. Objectives of the study were to maximum rainwater utilization for increasing productivity in T. Aman rice, to escape drought at the later stage of T. Aman crop and to create environment for timely establishment of wheat. The results indicates that land preparation was needed for T₁, T₂ and T₃. No extra irrigation water was required for land preparation for T₄. The amount of rainwater used and yield obtained indicated that both treatments of T₁ and T₂ utilized highest rainwater (T₁ for 919 mm and T₂=858 mm) for the whole growing season of T. Aman compared to other treatments. The maximum yield was found 5760 kg/ha under treatment T₁, which was transplanted July 1. Similarly the highest water use efficiency was 4.0 kg/ha/mm under treatment T₁.

Keywords: Maximizing yield, Rain water utilization, Cropping practices, Rice-wheat system.

Location: Chuadanga sadar Upazila, Chuadanga

Start Date: 01-07-2000

End Date: 30-06-2001

Program Area: Crop-Soil-Water Management

Commodity: Rain water

Objectives:

Maximum rainwater utilization for increasing productivity in T. Aman rice
To escape drought at the later stage of T. Aman crop
To create environment for timely establishment of wheat

Methodology:

The experiment was conducted for achieving T.Aman cultivation for maximizing yield and rainwater utilization. Transplanted rice cultivation method was used is the experiment. Supplemental irrigation was done as and when required. Research management were compared for the study. The treatments were: T₁=Research management: transplanted on July 1 T₂= Research management: transplanted on July 16 T₃=Farmers practice: transplanted on July 30 T₄= Farmers practice: transplanted on Aug 10 Land preparation was needed for T₁, T₂ and T₃. No extra irrigation water was required for T₄. The amount of total water used for each treatment was recorded. Similarly, yield was measured as following standard method.

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

Article Link (Online Journal):

Funding Source:

1. Asian Development Bank

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Land preparation was needed for T₁, T₂ and T₃. No extra irrigation water was required for land preparation for T₄. The amount of rainwater used and yield obtained indicated that both treatments of T₁ and T₂ utilized highest rainwater (T₁ for 919 mm and T₂=858 mm) for the whole growing season of T. Aman compared to other treatments. The maximum yield was found 5760 kg/ha under treatment T₁, which was transplanted July 1. Similarly the highest water use efficiency was 4.0 kg/ha/mm under treatment T₁.

Knowledge Management: Report/Proceedings