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Performance and Productivity of Boro Rice Varieties Cultivated in Saline Area of Satkhira

M. E. Hossain
Soil Science Division, Bangladesh Institute of Nuclear Agriculture, BAU Campus, Mymensingh-2202, Bangladesh

A. N. A. Haque
Soil Science Division, Bangladesh Institute of Nuclear Agriculture, BAU Campus, Mymensingh-2202, Bangladesh

M. E. Haque
Soil and Water Management & Crop Nutrition Section, Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture, IAEA Laboratories Seibersdorf, Vienna, Austria

Lee Heng
Soil and Water Management & Crop Nutrition Section, Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture, IAEA Laboratories Seibersdorf, Vienna, Austria

Abstract/ Executive Summary:

A field experiment was conducted with Boro rice (cv.Binadhan-10 and BRRI dhan28) at Kaligonj, Satkhira to evaluate performance of two rice varieties under different nutrient management practices in a saline soil. The rice varieties, such as BRRI dhan28 and Binadhan 10 were tested under 3 levels of nutrients (T1= Recommended dose of N, P, K,S, Zn, T2= T1+ additional Gypsum @ 125 Kg ha^-1 and T3= T1+ additional Gypsum @ 190 Kg ha^-1) and the treatments were assigned in a split plot arrangement with 3 replications. The study revealed that different rice varieties and nutrient levels along with their interaction have significant effect on growth and yield of rice. Effect of varieties found highest for grain (6.38 t ha^-1) and straw (6.60 t ha^-1) yield in case of Binadhan-10 and considering the mean effect of different nutrient level is insignificant for both varieties. Due to interaction effect of both variety and nutrient levels, the maximum grain yield was found as 6.61 t ha-1under the treatment combination V2T2 i.e. Binadhan-10 along with recommended dose of N, P, K, S and Zn with 125 kg gypsum ha^-1. Between these two varieties Binadhan-10 showed better performance compared to BRRI dhan28 at saline condition.

Keywords: Salinity, BRRI dhan28, Binadhan-10, Boro rice, Gypsum

Location: At farmers field in Kalikapur village under the Kaliganj upazila of Satkhira

Start Date: 00-01-2015

End Date: 00-05-2015

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

A study was conducted to observe performance and productivity of the salt tolerant variety (Binadhan-10) in comparison to a widely cultivated high yielding variety (BRRI dhan28) along with different nutrient management practices in saline area, so that the local farmers can adopt suitable variety in salinity stress condition.

Methodology:

The experiment was conducted at farmers field in Kalikapur village under the Kaliganj upazila of Satkhira (22^o27’N latitude and 89^o2.5’E longitude) during the Boro season of 2015 (January to May, 2015). The land belongs to AEZ 13, Ganges Tidal Floodplain and the soil was silty clay loam in texture, having pH 6.35, total N 0.11%, % Organic carbon 0.96, available P 6.0 ppm, available K 73.54ppm and available S 12.50 ppm. EC value (dSm^-1) ranged between 3.02 and 8.02. Trend showed that the salinity of soil increases from December (3.15 dSm^-1) to April (8.02 dSm^-1) and then decreases to 3.02 dSm-1in the month of June; this was might be due to the rainfall which causes lowering the salt concentration of soil. The experiment was laid out in a split-plot design with three replications, where two varieties of rice were assigned in main plots viz. V1: BRRI dhan28, V2: Binadhan-10 and three nutrient levels were assigned in sub-plots viz. T1= Recommended dose of N, P, K, S and Zn, T2= T1+ additional Gypsum @ 125 kg ha^-1, T3= T1+ additional Gypsum @ 190 kg ha^-1. Full dose of TSP, MoP, Zinc sulphate and Gypsum were applied during final land preparation (BARC, 2012). Urea was applied in three equal splits at 10 days after transplanting (DAT), 25 DAT (maximum tillering stage) and 40 DAT (panicle initiation stage or booting stage). Tillage and intercultural operations and other management practices were performed as when required. The crop characters -plant height, panicle length, number of tiller hill-1, number of grains panicle-1and grain and straw yield data were recorded at maturity during rice harvest. The analysis of variance for every crop characters and yield was done following the principle of F-statistics using MSTAT-C software and the mean results in case of significant F-value were adjudged by the Duncan’s Multiple Range Test (DMRT) at 5% level of significance.

Source of Information: J. Biosci. Agric.Res. 08(02): 726-733

Article Link (Online Journal): DOI: 10.18801/jbar.080216.86

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

It was observed that, for salt tolerant characteristic Binadhan-10 performed better in saline condition. Different nutrient management approaches with recommended fertilizer dose gave higher yield of Binadhan-10 compared to BRRIdhan28.While addition of excess gypsum did not significantly affect the grain yield of rice. So, farmers of salt affected area in Sathkira could prefer Binadhan-10 for better yield and productivity of rice.

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