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Influence of Nitrogen on Growth and Yield of Turnip

A. A. Sadia
Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh

A. F. Ona
Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh

T. Taufique
Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh

H. Mehraj
Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh

A.. F. M. Jamal Uddin
Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh

Abstract/ Executive Summary:

The study was conducted in the Farm of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during the period from November 2009 to January 2010 to study the effect of nitrogen on growth and yield of turnip. The experiment consisted of four different levels of nitrogen (N₀: 0 kg N ha^-1 (control); N₁: 40 kg N ha^-1; N₂: 70 kg Nha^-1 and N₃: 100 kg N ha^-1) with 3 replications. Data on different growth parameter and yield showed statistically significant differences among different treatment. Results showed that at 20, 30, 40, 50 DAS and at harvest, the tallest plant (11.9 cm, 22.6 cm, 34.8 cm, 58.4 cm and 60.8 cm, respectively) was recorded from N₂ whereas the shortest plant (10.1 cm, 18.5 cm, 27.3 cm, 48.6 cm and 51.3 cm, respectively) was recorded from N₀. The highest diameter of root (3.7 cm) and highest yield per hectare (25.8 tons) were recorded from N₃ and, the lowest diameter (2.9 cm) and lowest yield (18.8 ton) were recorded from N₀.

Keywords: Turnip, Brassica spp., Nitrogen, and Yield

Location: Farm of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh

Start Date: 00-11-2009

End Date: 00-01-2010

Program Area: Crop-Soil-Water Management

Commodity: Vegetables

Objectives:

To study the effect of nitrogen on growth and yield of turnip.

Methodology:

The study was conducted in the Farm of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during the period from November 2009 to January 2010. The soil of the experimental area belongs to the Modhupur Tract. The analytical data of the soil sample collected from the experimental area were determined in the SRDI, Soil Testing Laboratory, Khamarbari, Dhaka. The seed of a “Purple top white globe” Holland turnip variety was used in this experiment. Four levels of nitrogen viz; (N₀: 0 kg N ha^-1 (control); N₁: 40 kg N ha^-1; N₂: 70 kg Nha^-1 and N₃: 100 kg N ha^-1) were studied in Randomized Completely Block Design with three replications. The experimental plot was partitioned into the unit plots in accordance with the experimental design. The size of the unit plot was 3.0 m × 1.0 m. The total amount of cowdung (10 ton ha^-1), TSP (100 kg ha^-1) and MP (100 kg ha^-1) was applied as basal dose at the time of land preparation. Seeds were sown in mid November and the total amount of urea as per treatment was applied in three installments at 10, 30 and 50 day after seed sowing. Light over-head irrigation was provided with a watering can to the plots immediately after germination of seedlings. Irrigation also provided at 20 and 40 days after sowing. Weeding was done three times at 10. 30 and 50 days after sowing followed by irrigation in the plots considering the optimum time for removal weed. Malathion (2 ml^-L) was sprayed fortnightly as routine work from seedling emergence to the end of harvest. Data were measured in respect of the plant growth characters and yield of turnip. Data on plant height, number of leaves plant-1 and length of leaf were counted at 20, 30, 40, 50 days after sowing (DAS) and at harvest at 15 January 2010. All other parameters were recorded at harvest. The data obtained for different characters were statistically analyzed. The significance of the difference among the treatment means were estimated by the Duncan’s Multiple Range Test (DMRT) at 5% level of probability.

Source of Information: J. Expt. Biosci. 4(2):39-42, (2013)

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Yield per hectare of turnip showed statistically significant differences due to different levels of nitrogen. The highest yield per hectare was recorded from N₃ (25.7 ton) which was statistically at per (25.4 ton) with N₂ and that of the second highest (21.4 ton) by N₁. However, the lowest yield per hectare (18.8 ton) was recorded from N₀.

Knowledge Management: Journal