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Effect of Fertilization on the Growth and Yield of Wheat in Red Brown Terrace Soils of Bangladesh

M. M. Ali
Bangladesh Institute of Nuclear Agriculture, Mymensingh, P.O. Box-4, Bangladesh

M. I. Ali
Bangladesh Institute of Nuclear Agriculture, Mymensingh, P.O. Box-4, Bangladesh

M. K. Khan
Bangladesh Institute of Nuclear Agriculture, Mymensingh, P.O. Box-4, Bangladesh

Abstract/ Executive Summary:

A field experiment was conducted at Gacltabari, Madhupur representing Red Brown Terrace Soils with wheat as test crop using different combinations of N-, P-, K- , S- and Zn-fertilizers during 1988-89 Rabi season. Results indicated sharp response of wheat to N-and S-fertilizers. The highest number of plants/m² and plant height were recorded in treatments T₁₄ and T₆ with 120 and 160 kg N/ha including recommended doses of other nutrients. Application of N-, P-, K- and S-fertilizers significantly increased the grain and straw yields of wheat. Increase in grain yield from application of 120 kg N/ha was 186% (4.5 t/ha) over N-control (1.6 t/ha) treatment as compared to 126% (3.5 t/ha) and 187% (4.5t/ha) due to 80 and 160 kg N/ha application, respectively. Grain yield increase at 13 kg P, 33 kg K and 20 kg S/ha were 42, 50 and 52% respectively as compared to 45, 57 and 52% due to application of 26 kg P, 66 kg K and 40 kg S /ha, respectively over control. The results indicate that application of 120 kg N, 13 Kg P, 33 kg K and 20 kg S/ha is required to obtain wheat yields of 4.5 t/ha in the Red Brown terrace Soils.

Keywords: Wheat, Soils, Red brown terrace soils, Fertilizer

Location: Gachabari, Madhupur representing Red Brown Terrace Soils, Bangladesh

Start Date: 00-00-1988

End Date: 00-00-1989

Program Area: Crop-Soil-Water Management

Commodity: Wheat

Objectives:

To determine the effect of fertilization on the growth and yield of wheat in Red Brown Terrace Soils of Bangladesh.

Methodology:

The field experiment was conducted at Gachabari, Madhupur representing Red Brown Terrace Soil and using wheat (var. Pak. 81) as test plants during 1988-89 Rabi season. Soil sample was analysed by ASI methods. Fertilizer rates used in the experiment were nitrogen @ 0, 40, 80, 120 and 160 kg/ha; Phosphorus @ 0, 13, 26 and 39· kg P/ha; Potassium@ 0, 33, and 66 kg K/ha,Sulphur @ 0, 20 and 40 kg S/ha and zinc @ 0 and 5 kg Zn/ha from urea, TSP, MP, gypsum and zinc oxide, respectively. Each treatment was replicated 4 times in randomized block design having individual plot size of 5m x 3m. All the fertilizer nutrients except N were applied at the time of sowing on 8th November, 1988. Nitrogen as urea was applied in two equal splits, half at 25th day of sowing and the rest half at 50th day of sowing. The crop was irrigated 4 times at 18th, 39th, 55th and 76th day of sowing and was kept weed free upto 60 days after sowing. Plant samples were collected during harvesting, oven dried at 65⁰C and were taken for chemical analysis. The total nitrogen content of grain and straw was estimated by micro kjeldahl method and phosphorus by Olsen method. Potassium and sulphur were analysed by digesting the samples in nitric(-) perchloric acid system and determined by using flame photometer and spectrophotometer, respectively.

Source of Information: Bangladesh Jounral of Soil Science, Vol.-21 (1), 13--17 1990.

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Application of N, P, K and S fertilizers had some positive influence on the uptake of the nutrients by wheat grain and straw although such influence was only statistically significant for N and P content in grain. The highest number of plants/m² and plant height were recorded in treatments T₁₄and T₆ with 120 and 160 kg N/ha including recommended doses of other nutrients. Application of N-, P-,K-and S- fertilizers significantly increased the grain and straw yields of wheat. Increase in grain yield from application of 120 kg N/ha was 186% (4.5 t/ha) over N-control (1.6 t/ha) treatment as compared to 126% (3.5 t/ha) and 187% (4.5t/ha) due to 80 and 160 kg N/ha application, respectively. Grain yield increase at 13 kg P, 33 kg K and 20 kg S/ha were 42, 50 and 52% respectively as compared to 45, 57 and 52% due to application of 26 kg P, 66 kg K and 40 kg S /ha, respectively over control. The results indicate that application of 120 kg N, 13 Kg P, 33 kg K and 20 kg S/ha is required to obtain wheat yields of 4.5 t/ha in the Red Brown terrace Soils.

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