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Effect of Alley Size and Hedgerow Pruning Interval on Phenology and Yield of Okra [abelmoschus Esculentus (l.) Moench] in Hill Slope

Z. A. FIROZ
Principal Scientific Officer (Horticulture)
ARS, BARI, Ramgarh, Khagrachari,

M. H. RASHID
Scientific Officer (Entomology)
RARS, BARI, Hathazari, Chittagong

M. S. HUDA
Scientific Officer (Agronomy)
RARS, BARI, Hathazari, Chittagong, Bangladesh.

Abstract/ Executive Summary:

An experiment was conducted at the Hill Agricultural Research Station, Khagrachari from May 2002 to November 2004 to find out the effect of alley size (3.0 , 4.0, and 5.0 m) and hedgerow pruning interval (1, 2, and 3 months) on phenology and fruit yield of okra in hill slope condition during the rainy season. The highest fruit yield (16.14 t/ha) was produced by the plants grown in 3.0 m size alley. In case of hedgerow pruning interval, the highest yield (16.07 t/ha was recorded from 2 months pruning interval and it was significantly different with other two pruning intervals. The treatment combination of 3.0 m size alley with I month pruning interval produced significantly highest yield (17.67 t/ha). The highest gross return (Tk.176700/ha), net return (Tk.120380/ha) and BCR (3.14) were also found from the same treatment though highest cost of production was involved in this treatment.

Keywords: Alley size, Pruning interval, Phenology, Okra yield, Cost benefit

Location: Hill AgriculturalResearch Station, Khagrachari

Start Date: 00-05-2002

End Date: 00-11-2004

Program Area: Crop-Soil-Water Management

Commodity: Okra

Objectives:

To find out the effect of alley size and hedgerow pruning interval on phenology and the yield of okra in hill slope condition.

Methodology:

The experiment was conducted at 5-20 % hill slope at the Hill Agricultural Research Station, Khagrachari from May 2002 to November 2004. The soil in the area belongs to brown hill soil type series under Northern and Eastern Hills (AEZ-29). It is generally well drained and clay loam in texture. Soil parameters are given in Table 4.The experiment was laid out in a split plot design with three replications. The main plot treatments were assigned in 3 alley sizes viz. 3.0, 4.0, and 5.0 m. The treatments in the sub-plot consisted of different pruning intervals as 1, 2, and 3 month. The okra variety was BARI Dherosh- 1. Seeds of okra were sown in 1 June 2004. The unit plot size was 3.0 x 2.4 m, 4.0 x2.4 m, and 5.0 x2.4 m depending on alley size. Fertilizers were applied at the rate of 150, 100, and 150 kg/ha of Urea, TSP, and MP, respectively. Cowdung was used 10 t/ha during land preparation. Intercultural operations were done as and when necessary. Harvesting was started from 15 July and continued upto 30 November 2004. Data on phenology were recorded from ten randomly selected plants. Hedgerow seeds (Indigofera) was collected from “Slopping Agricultural Land Technology (SALT) model farm at Allotila, Khagrachari (Established by Upland Settlement Project, Hill Tracts Development Board). Seedlings of Indigofera were raised in polybag nursed for about 3 months. The seedlings were transplanted during August 2002 and adequate management practices were done to establish the seedlings. Plant to plant distance was 50 cm for Indigofera. Indigofera was pruned 12 months after transplanting above 1 m from ground and all pruned materials were used in the soil as mulch and green manure. Collected data were subjected to statistical analysis by F-test and the differences among the treatment means were judged by Duncan’s Multiple Range Test (DMRT).

Source of Information: Bangladesh J. Agril. Res. 36(1) : 143-150, March 2011, ISSN 0258-7122

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The highest fruit yield (16.14 t/ha) was produced by the plants grown in 3.0 m size alley. In case of hedgerow pruning interval, the highest yield (16.07 t/ha was recorded from 2 months pruning interval and it was significantly different with other two pruning intervals. The treatment combination of 3.0 m size alley with I month pruning interval produced significantly highest yield (17.67 t/ha). The highest gross return (Tk.176700/ha), net return (Tk.120380/ha) and BCR (3.14) were also found from the same treatment though highest cost of production was involved in this treatment.

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