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A Study of Planting Method and Spacing on the Yield of Potato Using Tps

S. Mahmood
Department of Soil and Nutrition, Bangladesh Sugarcane Research Institute, Ishurdi, Pabna, Bangladesg.

Abstract/ Executive Summary:

An experiment was carried out at the Horticulture Farm of Bangladesh Agricultural University, Mymensingh to investigate the effect of planting method and spacing on the yield of potato using Cv. BARI TPS-2. The experiment consisted of (a) two planting methods viz., transplanting and direct sowing in the field, (b) two planting systems viz., single row and double row system and (c) three spacing viz., 50x5, 50x10 and 50x15 cm. The experiment was laid out in RCBD with 3 replications. Transplanting method produced the highest yield (46.09 t ha^-1) by increasing plant height, fresh and dry weight of foliage and number and weight of tubers per plant than the direct sowing method (32.00 t ha^-1). Double row system of planting and the plant spacing 50x5 cm produced the maximum yield 41.67 and 42.32 t ha^-1, respectively. Transplanting with double row system gave the highest yield (48.98 t ha). Whereas, the transplanting with 50x5 cm spacing produced the maximum yield (50.72 t ha^-1). The highest yield 44.19 t ha^-1 was produced by the combination of double row and 50x5 cm. The combination of planting method, planting system and spacing produced marked effect on all parameters studied, being the highest yield (52.62 t ha^-1) in the combination of transplanting, double row and 50x5 cm spacing.

Keywords: Planting method, Spacing, Yield, Potato, TPS

Location: Horticulture Farm, Bangladesh Agricultural University, Mymensingh

Start Date: 30-10-2001

End Date: 19-03-2002

Program Area: Crop-Soil-Water Management

Commodity: Potato

Objectives:

To standardize the method of raising potato crop using TPS for a high yield.

Methodology:

The experiment was conducted at Horticulture Farm, Bangladesh Agricultural University, Mymensingh during the period from 30th October, 2001 to 19th March, 2002. The soil of the experimental area was silty loam in texture having pH 6.5. The seeds of a hybrid TPS variety, BARI TPS-2 were collected from Bangladesh Agricultural Development Corporation (BADC) Farm, Domar, Nilphamari. The experiment consisted of three factors viz., I) methods of planting (transplanting and direct sowing), ii) planting system (single and double row system) and iii) spacing (50x5, 50x10 and 50x15 cm). The three-factor experiment was laid out in the Randomized Complete Block Design (RCBD) with three replications. Each experimental plot size was 3x2.4 m² and, plot to plot and block to block distances were 50 and 75 cm, respectively. For transplanting method, five single ridges (3 m long) were prepared in 6 unit plots of each replication with 50 cm spacing between the ridges. Again four double ridges (3 m long) were prepared in 6 unit plots of each replication with 10 cm spacing between the two ridges of a double ridge and 50 cm spacing between the two double ridges. The fertilizers were applied at the rate of 350 kg Urea/ha, 225 kg Triple Super Phosphate (TSP)/ha, 260 kg Muriate of Potash (MP)/ha, 125 kg Zypsum/ha, 14 kg Zinc Sulphate/ha and 6 kg Borax/ha. Cow-dung 15 ton/ha was applied to enrich the soil during land preparation. Full dose of TSP, Zypsum, Zinc Sulphate and Borax and half dose of urea and MP were applied at the time of final land preparation. The rest half dose of Urea and MP were applied as topdressing at 45 and 60 days after seed sowing/transplanting of seedlings. True potato seeds were sown in nursery beds for transplanting on 30th October, 2001. For the direct sowing method, seeds were sown in well-prepared plots on 2nd December, 2001. On the same day, 33 days old seedlings were transplanted in the relevant plots of the main fields. After seed sowing nursery beds (for transplanting) and well-prepared plots (for direct sowing) both were covered with freshly cut banana leaves. The cover was removed as soon as emergence of seedling was visible and light overhead irrigation was provided to the seedlings everyday with water can. Transplanting was done in the late afternoon, as the young seedlings are sensitive to scorching sunlight. Dithane M-45 was used at 15 days interval commencing at 40 days after sowing/transplanting @ 0.2% as preventive measure against late blight. Harvesting of the crops under the transplanting method was done after 93 days of transplanting of seedlings and 109 days of seed sowing in case of direct sowing in field method, at a stage when the plants showed the sign of maturity.

Source of Information: Asian Journal of Plant Sciences, 4(2): 102-105, 2005 (ISSN 1682-3974)

Article Link (Online Journal): http://scialert.net/fulltext/?doi=ajps.2005.102.105&org=11

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The yield of potato tubers per hectare ranged from 26.69 to 52.62 t. The highest yield of potato tubers 52.62 t ha^-1 was obtained from transplanting method, double row system and 50x5 cm spacing followed by the same spacing with transplanting and single system (48.82 t ha^-1) and the lowest (26.69 t ha^-1) was from direct sowing in field method, single row system and 50x15 cm spacing.

Knowledge Management: Journal