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Effect of N, P, K and Cowdung on the Growth and Yield of Panchamukhi Kachu (colocasia Esculenta Var. Esculenta Schott.)

M. R. ISLAM
Agricultural Research Station, BARI, Raikhali, Chandraghona, Rangamati Hill District, Bangladesh

M. MONIRUZZAMAN
Agricultural Research Station, BARI, Raikhali, Chandraghona, Rangamati Hill District, Bangladesh

S. N. MOZUMDER
Hill Agricultural Research Station, BARI, Ramgarh, Khagrachhari Hill District, Bangladesh

Abstract/ Executive Summary:

A field experiment was carried out during two consecutive cropping seasons of 2001-02 and 2002-03 at the Agricultural Research Station, Raikhali, Rangamati, to optimize fertilizer need for desirable yield of Panchamukhi Kachu (Colocasia esculenta var. esculenta Schott.). Fourteen combinations of treatments consisting four levels of N (0, 50, 100 and 150 kg/ha), five levels of P₂O₅ (0, 25, 50, 75 and 100 kg/ha), four levels of K₂O (0, 60, 120 and 180 kg/ha) and three levels of cowdung (0, 10, 20 and 30 t/ha) were tested. A positive impact of each nutrient and cowdung application was observed on vegetative growth and fresh yield of the crop. The highest yield (average of two years) of 35.20 t/ha (54% increase over control) was obtained with the application of 100 kg of N, 75kg P₂O₅, 180 kg, K₂O and 10t cowdung/ha. From the economic point of view, the combination of 100 kg of N, 75kg P₂O₅, 180 kg K₂O and 10 ton cowdung/ha was found to be the most suitable one which offered a gross return and gross margin of TK. 3.25 lakh/ha and Tk. 3.39 lakh/ha, respectively coupled with marginal rate of return as high as 3530.77%.

Keywords: Panchamukhi kachu, Growth, Yield.

Location: Hill Agricultural Research Station, Raikhali, Rangamati

Start Date: 00-00-2002

End Date: 00-00-2003

Program Area: Crop-Soil-Water Management

Commodity: Aroids

Objectives:

To determine the suitable combination of N, P and K along with cowdung in order to obtain satisfactory yield of Panchamukhi Kachu at the agroecological zone- 29 (AEZ- 29)

Methodology:

The experiment was conducted in two consecutive cropping seasons of 2001-02 and 02-03 at the Hill Agricultural Research Station, Raikhali, Rangamati to find out the effect of N, P, K and cowdung on the growth and yield of Panchamukhi Kachu. The experimental field belongs to AEZ 29 and the soil was Piedmont plain having medium loamy to moderately fine textured (Sandy clay loam) (Zahirul, 1991) and low water holding capacity. The experiment was laid out in a RCB design with three replications. The unit plot size was 3×3.2m. Fourteen combinations of treatment consisting four levels of N (0, 50, 100, and 150 and kg/ha), five levels of P₂O₅ (0, 25, 50, 75 and 100 kg/ha), and four levels of K₂O (0, 60, 120, and 180 kg/ha) and three levels of cowdung (0, 10, 20 and 30 t/ha) were used in the experiment. The entire amount of cowdung and TSP and half of urea and MP were applied during land preparation. The rest of urea and MP were applied in three equal installments at 30, 50 and 70 days after planting. The planting materials (each cormel 50±5g) of local cultivars were placed (one seed/hill) under 5-7.5cm in soil maintaining 60x40cm of spacing. Weeding, mulching, irrigation, etc were done as and when necessary. The crop was harvested when the pseudostem (succulent leaf sheath arise from underground rhizome) of the plant was almost dried. Data on yield and yield attributes were taken from 10 randomly selected plants from each plot. The plot yield was first recorded and then converted to per hectare yield. Length of leaf, leaf spread, plant heights, yields and yield attributes were calculated from the average of ten plants. The final data were compiled properly and analyzed statistically following the standard method. Economic analyses were done on the basis of prevailing market price of input and output. Economical analysis of different fertilizer combinations was done through partial budgeting and dominance analysis followed by marginal analysis of the cost un dominated treatments as suggested by Perrins et al. (1979).

Source of Information: J Agric Rural Dev 4(1&2), 113-118, June 2006 ISSN 1810-1860

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

From the investigation, it is appeared that application of 100kg N, 75kg P₂O₅_, 180kg K₂O and 10 tons of cowdung /ha are the most suitable fertilizer dose for the production of Panchamukhi Kachu in the south-eastern hilly region of Bangladesh (AEZ-29).

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