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Growth and Yield of Different Rice Varieties in Coastal Saline Soil

Balal Hossain*
Soil Science Discipline, Khulna University, Khulna 9208, Bangladesh

N.M. Jahangir
Salinity Management and Research Centre, SRDI, Batiaghata, Khulna, Bangladesh

M. Shamsuddin
Salinity Management and Research Centre, SRDI, Batiaghata, Khulna, Bangladesh

S.T. Kumar
Salinity Management and Research Centre, SRDI, Batiaghata, Khulna, Bangladesh

Abstract/ Executive Summary:

A field experiment was carried out in a slightly to moderately coastal saline soil of the Khulna district. The area is mostly under monocropped practices having cropping intensity of >114%. Topsoil, river and ground water salinity in these area range from 1.7-2.6, 0.25-0.39 and 1.4-3.2 dS/m during July to December respectively. Soil and tidal river water salinity doesn’t severely affect the growth and yield of both HYV and local rice varieties in this period. BR-23 performed better growth and yield than BR-30 and local varieties. The degree of yield performance was BR-23>BR-30>Jutabalam >Kachra when the other relevant parameters remained constant.

Keywords: Growth; Yield; Rice; Coastal; Saline soil

Location: Khulna district, Bangladesh

Start Date:

End Date:

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

The experiment was undertaken to fulfil the following objectives: (i) to introduce one or more best high yielding rice varieties at local saline soil conditions, (ii) to verify the adaptability of HYV (BR-23 and BR-30) for maximizing the crop production in coastal saline soils, (iii) to find out the growth and yield performance of these varieties in these soils and (iv) to motivate the attitude of the local farmers for those high yielding rice varieties.

Methodology:

The experiment was laid out in randomized complete block (RCB) design with 3 replications having an area of 958.5 sq. m. Each block consisted of 8 plots and individual plot sizes were 6m X 5m, at a distance plant-plant 15 cm and row-row 25 cm for HYV and that of 30 cm apart (for local) in both the distances, respectively.1m and 0.5m separated the adjacent blocks and neighboring plots respectively. There were 4 selected treatments in the experiments. They were BR-23 (V1 ), BR-30 (V2), Kachra (V3) and juta balam (V4). To achieve 4.5-5.5 t/ha (HYV) and 2.75-3.0 t/ha (local) yield it was required 90-80-40-0-3kg/ha N-P-K-S-Zn (HYV) and 50-40-0-0-0 kg/ha (local) fertilizers respectively. Broadcasting incorporated full amounts of TSP, MP and zinc sulfate fertilizers during final land preparation. Urea was top dressed in 3 equal installments at 15, 30 and 45 DAT (Days After Transplant). Both HYV (BR-23 and BR-30) and local (Kachra and Jutabalam) varieties were harvested at 105-110 and 120-130 DAT, respectively.

Source of Information: Khulna University Studies 2(1): 115-118

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Among the four varieties of local and HYV rice it may be concluded that the BR-23 and BR-30 can be disseminated in coastal saline soils when the soil and water salinity remains 1.7-2.6 and 0.25-0.39 dS/m during July to December. More research and demonstration is needed to disseminate the technology elsewhere in the country.

Knowledge Management: Journal