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Agronomic Performance of Newly Released BRRI Varieties (boro) at Farmers’ Field-2002

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

M Moniruzzaman
PSO
IWMD, BRRI

Dr Golam Wahed Sarkar
PSO
Agril Statistics Division, BRRI

Abstract/ Executive Summary:

The study was conducted at farmers’ field in Kurigram and Pirgonj ICM site during Boro 2001/2002 to find out yield gap because of management difference between farmers’ and researchers’ and to determine location suitability and farmer’s preference for the varieties. On an average, higher grain and straw yields were recorded in the plots managed by the researcher’s than farmers’ plots. About 30% grain yield increase was observed at Kurigram site whereas; it was about 10% in Pirgonj site. In comparison, BRRI dhan28 produced higher grain yield than BRRI dhan36 at Pirgonj site but it was reverse at Kurigram site. This implies that it is necessary to know location suitability of a particular variety for obtaining higher grain yield in a specific season. Most of the farmers’ showed positive response to BRRI dhan28 because of short growth duration and high yield. On the other hand, there was a negative attitude towards BRRI dhan29 because of longer growth duration, although it produced the highest grain yield. However, a few of the farmers expressed interest on growing BRRI dhan36 in the next season.

Keywords: Agronomic performance, BRRI varieties, Yield gap

Location: Kurigram and Pirgonj ICM site

Start Date: 30-11-2001

End Date: 31-05-2002

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

To find out yield gap because of management difference between farmers’ and researchers’; and
To determine location suitability and farmer’s preference for the varieties.

Methodology:

The study was conducted at farmers’ field in Kurigram and Pirgonj ICM site during Boro 2001/2002. Although standard cultural practices as recommended by BRRI were followed by the researchers, farmers’ followed their own practices for growing rice. BRRI dhan28 and BRRI dhan36 were grown in Kurigram site while on the other hand, BRRI dhan29 together with above mentioned two varieties were grown at Pirgonj site. Forty to 45-day old 2-3 seedlings/hill were transplanted at 20x20 cm spacing during l^st week of January to 1^st week of February. The number of seedlings used by the farmers’ ranged 4-10/hill with variable amounts of fertilizers. Fertilizers used in the study were varied by location and variety. In general, farmers’ used higher rate (11-70%) of urea than BRRI recommendation. However, use of TSP, MP and Gypsum fertilizers by the farmers’ varied greatly in two locations.

Source of Information: BRRI Annual Internal Review 2002

Article Link (Online Journal):

Funding Source:

1.

Budget:

Total Budget (Tk.) :

Achievement/Findings:

On an average, higher grain and straw yields were recorded in the plots managed by the researcher’s than farmers’ plots. About 30% grain yield increase was observed at Kurigram site whereas; it was about 10% in Pirgonj site. In comparison, BRRI dhan28 produced higher grain yield than BRRI dhan36 at Pirgonj site but it was reverse at Kurigram site. This implies that it is necessary to know location suitability of a particular variety for obtaining higher grain yield in a specific season. Most of the farmers’ showed positive response to BRRI dhan28 because of short growth duration and high yield. On the other hand, there was a negative attitude towards BRRI dhan29 because of longer growth duration, although it produced the highest grain yield. However, a few of the farmers expressed interest on growing BRRI dhan36 in the next season.

Knowledge Management: Report/Proceedings