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Response of Mustard to Soil Test Based Fertilizer Management

Chief Scientific Officer & Head, OFRD and Relevant Scientists of OFRD

Abstract/ Executive Summary:

A field experiment was carried out at Sonapur of Muradnagar upazilla in Comilla district under Debidwar MLT site during the Rabi season of 2014-15. The experiment was conducted in the Old Meghna Estuarine Floodplain (AEZ-19) soil to find out the optimum and economic fertilizer dose for higher yield of mustard and also to update location specific fertilizer recommendation. The experiment was laid out in RCB design with 3 replications and 6 treatments. The treatments were T₁= Soil Test Based (STB) Fertilizer dose (FRG-2012), T₂= T₁+ 15% STB, T₃= T₁+ 30% STB, T₄= 80% STB from inorganic fertilizer + 20% STB from CD/PM, T₅= Farmers’ Practice and T₆= Control. Among the treatments, T₄ gave the maximum seed yield (1385.56kgha^-1) which was at par with T₁, T₃ and T2. The lowest seed yield (450.20 kg ha^-1) was obtained from T₆ (Control).

Keywords: Mustard, Fertilizer management, Yield, Return

Location: Sonapur, Muradnagar upazilla,Comilla

Start Date: 00-00-2014

End Date: 00-00-2015

Program Area: Crop-Soil-Water Management

Commodity: Fertilizer

Objectives:

To find out the optimum and economic fertilizer dose for higher yield of mustard
To update location specific fertilizer recommendation for increasing production and economic return.

Methodology:

The experiment was conducted at Sonapur of Muradnagar upazilla in Comilla district under the Debidwar MLT site during 2014-15. The experimental site belongs to in AEZ-19 (Old Meghna Estuarine Floodplain). Soil samples were collected from the experimental plots and analyzed. The soil was sandy loam in texture with pH 6.5. Initial nutrients content values were used in calculating soil test based fertilizer dose. The experiment was laid out in Randomized Complete Block (RCB) design with 3 replications. The unit plot size was (4 ×3) m². Row to row distance was 30 cm and seeds of BARI Sarisha-14 were sown continuously on 11 November, 2014. The treatments were T₁= Soil Test Based (STB) Fertilizer dose (FRG-2012), T₂= T₁+ 15% STB, T₃= T₁+ 30% STB, T₄= 80% STB from inorganic fertilizer + 20% STB from CD/PM, T₅= Farmers’ Practice, T₆= Control. Fertilizers were applied as per treatment. Half of nitrogen and full quantity of crowdung, P, K, S and B were applied at the time of final land preparation. Urea, TSP, MoP, gypsum and Boric acid were used as a source of N, P, K, S and B, respectively. The remaining half of nitrogen was applied as top dress at flowering stage (25 days after seeding) followed by irrigation. Intercultural operations like weeding, thinning were done as and when necessary. Yield components like number of siliqua plant^-1, seeds siliqua^-1 and 1000 seed weight were taken from randomly selected 10 plants from each plot. The crop was harvested at 75 days after sowing. Seed yields were taken from the whole plot. Data on yield and yield components were analyzed statistically and the means were adjusted using LSD test at 5% level of significance.

Source of Information: Annual Research Report 2014-2015, On- Farm Research Division, BARI, Gazipur

Article Link (Online Journal):

Funding Source:

1.

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The highest number of pods per plant (39.40), weight of 1000-seeds (2.97 g) and seed yield (1385.33 kg ha^-1) was recorded in the treatment T4 (80% STB from inorganic fertilizer + 20% STB from CD/PM) which however, was statistically similar with T₂ and T₃.

Knowledge Management: Report/Proceedings