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Effect of Row Spacing on the Growth and Grain Yield of Five Maize Varieties

M.A. Quayyum
Senior Scientific Officer
Agronomy Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur

S.M. Raquibullah
Scientific Officer
Agronomy Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur

Abstract/ Executive Summary:

Experiments to determine the effect of row spacing in five maize varieties were carried out in two successive seasons. Three row spacings of 60,75 and 90 cm with a fixed plant spacing of 25 cm within a row were compared. Grain yield and grain weights were significantly affected by the variations in row spacing and varieties. Highest yields were obtained from row spacing of 75 and 60 cm and each of the varieties yielded about 4t/ha on the average. Averaged over the years, the highest grain yields of Poza Rica 7728 and Sadaf were obtained with 60 and 75 cm spacing , respectively. Other varieties yielded highest at 75 cm row spacing.

Keywords: Row spacing, Growth, Grain yield, Maize

Location: Bangladesh Agricultural Research Institute, Joydebpur

Start Date: 00-00-1983

End Date: 00-00-1985

Program Area: Crop-Soil-Water Management

Commodity: Maize

Objectives:

To study the effect of row spacing with a constant intra-row spacing of maize varieties of differing morphological make-up on grain yield and other characters.

Methodology:

The experiment was carried out at the Bangladesh Agricultural Research Institute, Joydebpur during 1983-84 and 1984-85. The soil is a clay loam with pH 6.3 and belongs to moderately slow permeable Grey Terrace soil of Chhiita series containing 43% clay, 30% silt and 26% sand. Five varieties of maize (Alajuela 7725, Poza Rica 7728, Setelogoas 7729, Across 7740 and Sadaf) differing in some morphological characters were sown at three row spacings (60, 75 and 90 cm) with fixed intra-row plant spacing of 25 cm. A split-plot design replicated thrice was used with row spacing as main plots and varieties in sub-plots. Seeding was done on 5 November and 15 November, respectively during the two years. Fertilizer was applied at the rate of 120 kg N, 70 kg P₂0₅ and 50 kg K₂0 per hectare in the form of urea, triple superphosphate and muriate of potash, respectively. All the phosphatic and potassic fertilizers and half of nitrogen were applied as basal. The remaining nitrogen was applied as top dress in two equal splits, 30 and 60 days after seeding. Three irrigation were given 30, 60 and 85 days after seeding. Grain yield at 14% moisture level and yield components were recorded. . Results were analysed statistically and the differences between means were tested by LSD.

Source of Information: Bangladesh Agron. J. 1 (1) 64-71, 1986

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The results indicate that all the varieties except Poza Rica 7728 should be grown with 75 cm row spacing while latter should be grown with 60 cm row spacing for higher yield.

Knowledge Management: Journal