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Effect of Npks Dose and Plant Density on Seed Yield and Profitability of Brassica Campestris Cv. BARI Sarisha 9 Under Late Sown Condition

P. C. Sarker
Seed Technology Division, BARI, Gazipur, Bangladesh

T. Hossain
Department of Crop Botany, BSMRAU, Gazipur-1706, Bangladesh

J. U. Ahmed
Department of Crop Botany, BSMRAU, Gazipur-1706, Bangladesh

M. A. Karim
Department of Agronomy, BSMRAU, Gazipur- 1706, Bangladesh

Abstract/ Executive Summary:

A field experiment was conducted at the research farm of Crop Botany Department, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh during rabi season of 2007- 2008 to study the yield and economic performance of Brassica campestris C. BARI Sarisha 9 under late sown condition as affected by NPKS fertilizer dose and plant density.There were three levels of fertilizer doses v iz. F₁= N₇₅P₂₀K₂₈S₁₈ kg/ha. F₂= N₁₁₀P₃₀K₄₀S₂₅ kg/ ha, F₃= N₁₄₅P₄₀K₅₂S₃₃ kg/ ha and three levels of plant density viz. P₁= 60 plants/m^-2, P₂= 80 plants/m², P₃ =100 plants/m²in the experiment. Seeds of rapeseed variety BARI Sarisha 9 were sown on 28 November, 2007. Results showed that siIiqua/ plant and seed yield/ha were significantly influenced by different NPKS fertilizer doses and plant densities, and also 1000 seed weight by plant densities. Their interaction effects showed significant influence on siliqua/plant, seeds/siliqua and seed yield/ha. Fertilizer dose N₁₄₅P₄₀K₅₂S₃₃ kg/ha plus 100 plants/m^-2 performed better with respect to seed yield/ ha. This treatment combination gave up to 25% higher seed yield (1103 kg/ha) compared to its control (842 kg/ha).Farmers may grow BARI Sarisha 9 using this technology to get higher gross return (TK. 37988), net return (TK . 10573) and benefit cost ratio (1.39) under late sown condition.

Keywords: Rapeseed, Late sown, Seed yield, Profitability

Location: Crop Botany Department, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur

Start Date: 15-11-2007

End Date: 15-03-2008

Program Area: Crop-Soil-Water Management

Commodity: Fertilizer, Mustard

Objectives:

To determining optimum NPKS fertilizer dose along with appropriate plant density for higher seed yield and yield attributes and finding out the profitability of rapeseed cultivation under late sown condition.

Methodology:

The experiment was conducted at the research farm of Crop Botany Department, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh during rabi season of 2007- 2008 to study the influence of NKPS fertilizer dose and plant density on seed yield and profitability of rapeseed under late sown condition. The experimental area belongs to the AEZ 28. The texture of soil was clay loam having pH 6.25, organic matter 1.50%, total nitrogen 0.08%, available phosphorus 14.15 ppm, exchangeable potassium 0.20 meq per 100 g soil, available sulphur 3.35% and boron 0.14 ppm. The experiment was laid out in a 2 factor split plot design (SPD) with three replications. Three fertilizer doses vi z. N₇₅P₂₀K₂₈S₁₈ kg/ha (F₁), N₁₁₀P₃₀K₄₀S₂₅kg/ ha (F₂) and N₁₄₅P₄₀ K₅₂S₃₃ kg/ ha (F₃) were assigned in main plot and three plant densities vi z. 60 plants m^·2(P₁), 80 plants m^·2 (P₂) and 100 plants m^·2 (P₃) were placed as sub- plot. Seeds of variety BARI Sarisha 9 were collected from Oilseed Research Centre, BARI.

Source of Information: Ann. Bangladesh Agric. (2010) 14 (1 &2): 99-109

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Gross return per hectare increased with increasing of fertilizer dose and also plant density. Maximum gross return was found from the highest dose of NPKS fertilizers along with maximum plant density (F₃P₃) might be due to its higher seed yield and biological yield, but the minimum gross return was observed at the lowest fertilizer dose net return and benefit cost ratio, fertilizer dose N₁₄₅P₄₀K₅₂S₃₃ kg/ha along with plant density 100 plants/m² performed best under late sown condition. By this treatment combination, yield of rape seed (BARI Sarisha 9) could be increased up to 25% and it is 17.30% higher than our national average of 898 kg/ ha.

Knowledge Management: Journal