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Yield and Profitability of Potato as Influenced by Intra-row Spacing and Number of Eye in Cut Tuber in Northern Region of Bangladesh

A.A. Mahmud
Bangladesh Agricultural Research Institute (BARI), Gazipur, Bangladesh

M.A.Hoque
Bangladesh Agricultural Research Institute (BARI), Gazipur, Bangladesh

A. A. Mamun
DAE, Khamarbari, Dhaka, Bangladesh

M. M. Bazzaz
Bangladesh Agricultural Research Institute (BARI), Gazipur, Bangladesh

M.A. Hossain
Bangladesh Agricultural Research Institute (BARI), Gazipur, Bangladesh

Abstract/ Executive Summary:

The effects of four different intra-row spacing viz. S1=10 cm. S2=15 cm, S3='.20 cm. and S4= 15 cm along with two types of tuber viz. C 1 = cut tuber with one eye and C2 = cut tuber with two eye on yield and profitability of potato were studied in farmer's field of Bogra district during 2007-08 and '.2008-09 growing seasons. It was found that closer spacing reduced tuber number per hill, average tuber weight and tuber yield per hill but increase overall product ion. However, the optimum stem density for maximum tuber yield per hectare markedly differed depending on planting of cut tubers. From two years of trial, highest tuber yield was obtained from closer spacing than wider pacing in both planting. For single eye planting C1S1 the yielded highest (36.2 t ha- I) and double eye planting C2S2 yielded highest (37.2 t ha- l). Hencc it was concluded that using cuttubers having two eyes had an advantage for obtaining higher tuber yield than cut tubers having single eye in potato production in the northern regions of Bangladesh. Regarding benefit cost ratio (BCR), it was found that highest BCR (1.50) was calculated from the C2S2 treatment where cut tubers were used having at least two eyes with an intra-row spacing of 15 cm.

Keywords: Cut tuber, Intra-row spacing, Stem density, Potato yield.

Location: Bogra Sadar, Sadar Upazilla, Bogra under Tista flood plain (AEZ-4)

Start Date: 00-00-2007

End Date: 00-00-2009

Program Area: Crop-Soil-Water Management

Commodity: Potato

Objectives:

To evaluate the effects of cut tuber planting with different in tra-row spacing on yield and profitability of potato with a view to recommend the plant density by means of arranging cut tuber (one or two eye) and intra-row spacing in commercial potato production in Northern districts of Bangladesh.

Methodology:

The experiment was conducted in the farmer's field during 2007-08 and 2008-09 at Bogra Sadar Sadar Upazilla, Bogra under Tista flood plain (AEZ-4) soi having sandy loam in texture. The experiment was laid out in factorial RCBD with three replications. The inter-row spacing was 40 cm. The treatments were four different intra-row spacing viz. S1 = 10 cm i.e. 2,50,000 plants/ha, S2 = l 5 cm 1.e. 1,66,667 plants/ha, S3 =20 cm i.e. 1,25,000 plan ts/ha, S4 = 25cm i.e. 1,00,000 plants/ha along with two types of cut tuber vi z. C 1 = Cut tuber with single eye and C2 = Cut tuber with two eyes. Variety Asterix was used as planting material. The seed tubers were kept in a ventilated room and allowed to sprout in diffused light for obtaining healthy sprouts prior to planting. Well sprouted tubers were separated and then cut them according to number of eye. The unit plot size was 2.4 m X 3.0m. Fertilizers were applied as per recommendation of TCRC.

Source of Information: Ann. Bangladesh Agric. (2010) 14 ( 1&2): 111-124

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

In conclusion, use of cut tuber (one or two eye) with different intra row spacing significantly influenced on stem plant^-1 , stem m^·2, tuber plant ^-1 , tuber m^·2, mean tuber weight, yield plant ^-1 and yield ha^-1which ultimately affect the yield of potato.

Knowledge Management: Journal