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Effect of Spacing on the Yield of Onion

M. A. Rashid
Department of Horticulture, Bangladesh Agricultural University, Mymensing.

M. M. Rashid
Department of Horticulture, Bangladesh Agricultural University, Mymensing.

Abstract/ Executive Summary:

An experiment was carried out to study the effect of spacing on the yield and other yield contributing characters of onion. It was found that spacing significantly influenced the yield of onion, but other yield contributing characters namely, number of leaves per plant, length of leaf, size of bulb and weight of bulb were on affected. The yield increased with closer spacing and this was due to the larger number of plants that were accommodated per unit area of land. The highest yield per acre was obtained with the spacing of 4 inch x 4 inch in the multiple row system. Closer spacing, in general, caused the plants to produce fewer and shorter leaves and smaller bulbs.

Keywords: Onion, Spacing, Yield

Location: Horticulture Farm of Bangladesh Agricultural University, Mymensing.

Start Date: 00-10-1975

End Date: 00-04-1976

Program Area: Crop-Soil-Water Management

Commodity: Onion

Objectives:

To determine the optimum spacing for the local varieties under the existing condition of soil and climate of Bangladesh.

Methodology:

The experiment was conducted in the Horticulture Farm of Bangladesh Agricultural University, Mymensing during the period from October,1975 to April 1976. For raising seedlings, seeds of an unnamed local variety of onion were sown in the seedbeds on the 23rd November,1975. The seedlings were transplanted in the main field when they were 50 days old. The crop was fertilized with Cowdung, Urea, Triple Superphosphate and Muriate of Potash at the rate of 5.505 tons, 82.28 Ibs, 61,71 Ibs 102.85 Ibs, respectively per acre. Keeping in view the normal practices followed by the onion growers, the following spacing treatments were chosen for comparison. The experiment was laid out in a randomized block design with three replications. Irrigation was applied 4 times by flood method. The crop was harvested on the 9th April,1976 when most of the leaves started to dry up. The effect of spacing was evaluated by the number of leaves per plant, length of leaves, size of bulbs, weight of bubls and the yield.

Source of Information: Bangladesh Horticulture, Vol-4(2),page: 18-22 ,1976

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The highest yield per acre was obtained with the spacing of 4 inch x 4 inch in the multiple row system. Closer spacing, in general, caused the plants to produce fewer and shorter leaves and smaller bulbs.

Knowledge Management: Journal