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The Yield Response of Wheat to Zinc Fertilization

K H Talukder
Dean
Faculty of Agriculture, Biological Science, Biotechnology and Textile, Atish Dipankar University of Science and Technology, Bangladesh

I U Ahmed
Former Professor
Department of Soil, Water and Environment, University of Dhaka and Former President The Peoples’ Republic of Bangladesh

M S Islam
Former Director General
Bangladesh Agricultural Research Institute Joydebpur, Gazipur, Bangladesh.

M Asaduzzaman4 and
Executive Director
Bangladesh Science Foundation, Dhaka.

M D Hossain
Department of Agribusiness, Atish Dipankar University of Science and Technology, Bangladesh

Abstract/ Executive Summary:

To investigate on the Zn deficiency induced by P, an experiment on wheat was carried out at the Regional Agricultural Research Station, Agricultural Research Sub-Station, and Special Crop Research Stations of BARI and at Farmer’s field. The grain yield was increased with increasing application of zinc upto 6 kg/ha but beyond that the level the yield was declined. The highest yield (3.87t/ha) was obtained in 6 kg Zn/ha under Amnura series as compare to Nachole and Lauta series. The lowest yield was obtained in Nachole series (3.07 t Zn/ha) under Deep Grey Terrace Soil. In Gangachara too, the grain yield of wheat was increased with increasing levels of zinc upto 6 kg Zn/ha beyond that it was declined. The highest yield (5.58t/ha) was obtained in 6 kg Zn/ha under Gangachara series and compare to Kaunia and Sonatola series. The lowest yield was obtained (3.92t/ha) in Kaunia series under Grey Floodplain Soils.The grain yield of wheat was significantly increased upto 12 kg Zn/ha in Calcarious Dark Grey Floodplain and Calcarious Brown Floodplain Soils and the order of increase was Zn12>Zn9>Zn6 >Zn3>Zn0. The highest yield (5.50 t/ha) was recorded in 12 kg Zn/ha. The order of the yield was Ishardi 5.50 t/ha > Sara5.47 t/ha> Gopalpur 5.13 t/ha>Darsona 2.91t/ha was recorded under Calcarious Dark Grey Floodplain and Calcareous Brown Floodplain Soils.

Keywords: Yield, Wheat, Soil, Zinc and Fertilization

Location: Regional Agricultural Research Station, Agricultural Research Sub-Station, and Special Crop Research Stations of BARI and at Farmer’s field.

Start Date:

End Date:

Program Area: Crop-Soil-Water Management

Commodity: Fertilizer, Wheat

Objectives:

To investigate on the interaction of Zn and P to ascertain Zn deficiency.
To come up with a solution to correct this Zn deficiency disorder.

Methodology:

The experiment on Wheat cropping pattern were carried out at the Regional Agricultural Research Station, Agricultural Research Sub-Station, and Special Crop Research Stations of BARI and at Farmer’s field. The blanket doses of 120 kg N/ha from urea, 100 kg P₂O₅/ha from TSP 60 kg K₂O/ha from MP, 20 kg S/ha from gypsum along with different levels of Zn (0, 3, 6, 9 and 12) kg/ha from zinc oxide were tested in the experiments. The treatment combinations were T1(Absolute Control) ,T2 (N120 P45 K50 S20 Zn0kg/ha),T3(N120 P45 K50 S20 Zn3kg/ha) ,T4(N120 P45 K50 S20 Zn6kg/ha) ,T5(N120 P45 K50 S20 Zn9 kg/ha) and T6 (N120 P45 K50 S20 Zn912 kg/ha) . The experiment was laid out in a randomized complete block design with 3 replications and 6 treatments. The unit plot sized was 5m x 4m and row to row distance was 30 cm. The wheat seed (cv. Kanchan) were sown continuous in line. For T.aus, the spacing was maintained as row to row 25 cm and hill to hill 15 cm. The seed rate was 130 kg/ha and 120 kg/ha for wheat and rice respectively. All P, K, S and Zn half on N were applied at the time of the final land preparation and remaining half N was applied before flowering stage for both wheat and rice. The intercultural operations were done as and when necessary for both the crops. The plants were grown to maturity with protection from insects and diseases. The grain sample of wheat and rice were separately processed and dried in the oven at 600 C for about 24 hours and finally ground in the grinding machine and subsequently stored for chemical analysis. The complete chemical analysis was done following standard method (Hunter, 1984).

Source of Information: J. Sci. Foundation, 9(1&2): 15-25, June-December 2011 ISSN 1728-7855

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The grain yield of wheat increased significantly due to application of Zn in all the soils under study. However, the requirement of zinc for wheat varied from soil to soil. The optimum amount of zinc was estimated from the quadratic response curve as 4.46, 5.67, 198 5.45, 5.60, 6.43 and 6.28 kg Zn/ha for Amnura, Nachole, Lauta under Deep Gray Terrace Soil, Gangachara, Kaunia, Sonatola under Gray Floodplain Soil respectively. The grain yield of wheat was significantly increased up to 12 kg Zn/ha and showed linear relationship with the added zinc in Calcareous Dark Grey and Brown Floodplain Soils which were alkaline in reaction. The grain yield was increased 23-234 kg/ha, 14-166 kg/ha, 15- 103 kg/ha & 32-52 kg/ha by the application of 1 kg Zn/ha within the range from 0-12 kg Zn/ha for Sara, Ishurdi, Gopalpur and Darsona series respectively under the same soil.

Knowledge Management: Journal