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Irrigation Timing and Nitrogen Application on the Yield of Wheat (triticum Aestivum)

Saha Arabinda
Agronomy Division, Bangladesh Agricultural Research Institute, Joydebpur,Gazipur

N. H. Khan

Abstract/ Executive Summary:

A field experiment was conducted at BAU Farm, Mymensingh to study the influence of irrigation frequencies ( at crown-root Initiation, maximum tillering and panicle initiation stages ) and nitrogen rates ( 0,30,60.90.120 & 150 kg/ha ) on wheat ( Triticum aestivum ) during rabi season of 1979-80. The variety Sonalika' was used for the trial. Irrigation was given at crown- root initiation and maximum tillering stages and 120 kg N/ha were optimum for wheat cultivation in AEZ ( Agro-ecological zone ), Region 9

Keywords: Irrigation, Nitrogen, Yield, Wheat

Location: Mymensingh

Start Date: 26-11-1979

End Date: 01-03-1980

Program Area: Crop-Soil-Water Management

Commodity: Irrigation scheduling

Objectives:

To evaluate the effect of irrigation timing and nitrogen application on the yield of wheat CV. Sonalika under Agro-ecological Zone (AEZ), Region 9.

Methodology:

The present experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh on a medium high land of AEZ, Region 9. The experiment was laid out in a split plot design with 3 irrigation timing irrigation (I), at 21 days of sowing i. e. crown-root initiation (CAI). 2 irrigation (l₂) at 21 and 41 days of sowing i. e. crown-root- initiation and maximum tillering stages ( CA I and MT stages) and 3 irrigation (l₃₎ i. e. crown root initiation, maximum tillering and panicle initiation stages ( CAI. MT & Pl stages) and 6 levels of nitrogen-0, 30,- 60, 90, 120 and 150 kg per hectare (designated as N₀, N₁, N₂, N₃ , N₄ & N₅ respectively). Half of the dose of nitrogen, 65 kg P and 45 kg K (in elemental form) were applied at final land preparation and incorporated with soil. Remaining nitrogen was applied in two equal splits at 25 and 45 days after sowing. The treatments were replicated four times. The seeds of wheat cultivar Sonalika at the rate of 120 kg per hectare were sown on 26 th November, 1979 in broadcasting method. The experiment was laid out in split-plot design. The collected data were statistically analyzed and the significance of the mean differences were adjudged by Duncan's New Multiple Range Test

Source of Information: Bangladesh J. Agril. Sci. 20 (2) : 239'-245, July, 1993

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The findings of the present investigation showed that both irrigation and nitrogen application had significant influence on grain and straw yields of wheat ( CV. Sonalika ). From the study it may be suggested that a satisfactory yield can be obtained by applying one irrigation at CRl (21 DAS) stage with 120 kg N/ha. But when water is available one more irrigation may be given at MT stage with same amount of nitrogen fertilizer to get more grain yield of wheat

Knowledge Management: Journal