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Demonstration and Delivery of N Management Technique Using of Lcc in Boro and T. Aman Seasons

Saiful Alam Talukder
Senior Scientific Officer
Rice Farming Systems Division, Bangladesh Rice Research Institute, Gazipur-1701

M Ibrahim
Principal Scientific Officer
Rice Farming Systems Division, Bangladesh Rice Research Institute, Gazipur-1701

Akhter Hossain Khan
Principal Scientific Officer
Rice Farming Systems Division, Bangladesh Rice Research Institute, Gazipur-1701

M Abdul Quddus
Principal Scientific Officer
Rice Farming Systems Division, Bangladesh Rice Research Institute, Gazipur-1701

Abstract/ Executive Summary:

To improve efficiency of nitrogen use as well as yield increase, trials were conducted in Moison block under Kapasia upazila of Gazipur district during T.Aman and Boro season consisting two methods of nitrogen application i.e., LCC based and farmers’ practice. During T. Aman season, BR11, BRRI dhan31 and BRRI dhan41 and during Boro season, BR14, BRRI dhan28 and BRRI dhan29 were tested. Grain yields of T.Aman varieties were increased and N use was decreased under LCC based N management over the farmers’ practice. The average yield increase of BR11, BRRI dhan31 and BRRI dhan40 were 0.65, 0.82 and 0.36 t/ha, respectively while these were 0.29 and 0.40 t/ha for BR14 and BRRI dhan29 in Boro seasons. Irrespective of variety, on an average 16.33 kg N/ha and 29.0 kg N/ha could be saved by LCC based N management practice in T.Aman and Boro season, respectively.

Keywords: LCC use, Improve efficiency of nitrogen use, T. Aman and Boro

Location: Moison block, Kapasia, Gazipur

Start Date: 01-07-2005

End Date: 30-06-2006

Program Area: Crop-Soil-Water Management

Commodity: Fertilizer

Objectives:

To improve efficiency of nitrogen use as well as yield increase.

Methodology:

Nitrogen application by the use of LCC helps to improve efficiency of nitrogen use as well as yield increase. For its demonstration several trials were conducted in Moison block under Kapasia upazila of Gazipur district during T.Aman and Boro season. The demonstration consisted of two methods of nitrogen application i.e., LCC based and farmers’ practice. During T.Aman 2005 the trial was conducted in 10 farmers’ fields for each of BR11, BRRI dhan31 and BRRI dhan41 and during Boro 2005-06 the trial was conducted in 10 farmers’ fields for each of BR14, BRRI dhan28 and BRRI dhan29.

Source of Information: Proceedings of the BRRI Annual Internal Review 2005-06

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Real time N management by the use of LCC increased grain yield and decreased N use in rice over framers’ practice. Irrespective of variety, amount of nitrogen could be saved by LCC based N management practice in T.Aman and Boro season.

Knowledge Management: Report/Proceedings