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Effects of Organic and Inorganic Fertilizers on Yield and Yield Contribting Characters of Mukhi Kachu (colocasia Esculenta L.)

D. Hossain
Depts. of Soil Science, Patuakhali, Science and Technology University. Bangladesh

M. Ullah
OFRD. Bangladesh Agricultural Research Institute. Gazipur-1701. Bangladesh

M. Shahjahan
Bangladesh Agricultural Research Council. Dhaka. Bangladesh

M. A Haque
Department of Biotechnology. BSMRAU. Gazipur-1706. Bangladesh

M. Ali
Horticulture, Patuakhali, Science and Technology University. Bangladesh

Abstract/ Executive Summary:

The response of mukhi kachu (Colocasis csculenta L.) cultivars (Bilashi and local variety) to inorganic (Urea 140 kg ha^-1, TSP = 95 kg ha^-1, MP= 145 kg ha^-1 and Urea 150 kg ha^-1, TSP= 100 kg ha^-1, MP= 150 kg ha^-1 and organic (Cowdung 5,000 kg ha^-1. Mustard oil cake 100 kg ha^-1 and Poultry dropping 8000 kg ha^-1) fertilizers was determined at the farm of Patuakhali Science and Technology University. Bangladesh. Different Ievels of organic and inorganic fertilizers showed significant effect on number of cormels, dry weight of cormels and yield of the crop. Organic fertilizers produced significantly higher yields of mukhi kachu over the inorganic fertilizers. The variety Bilashi produced the highest yield (25.66 t ha^-1) with the application of mustard oil cake.

Keywords: Mukhi kachu, Cormels, Plant growth, Yield, Organic fertilizer, Inorganic fertilizer.

Location: Patuakhali Science and Technology University, Bangladesh

Start Date:

End Date:

Program Area: Crop-Soil-Water Management

Commodity: Organic fertilizer, Aroids

Objectives:

To evaluate the response of yield and yield contributing characters of mukhi kachu to applied mustard oil cake, cowdung, poultry litters and fertilizer.

Methodology:

The experiment was conducted at the research farm of Patuakhali Science and Technology University, Bangladesh to study the effects of mustard oil cake, Cowdung, poultry litters and chemical fertilizers on plant height, number of leaves, leaf area index, fresh weight of leaves, fresh weight of roots and total biomass, number of cormcls, weight of cormels and yield of mukhi kachu. Cormels are used as seed in this experiment. The soil of the study area belongs to Ganges Tidal Flood plain. The collected soil samples were air -dried, ground and passed through a 20 mesh sieve. The soil was of silty loam having pH 6.8, organic carbon 0.80%, CEC 13 meq/I00 g soil, available nitrogen 0.06%, available P10.90 ppm, K 6.98 meq/100 g soil, S12.70 ppm, exchangeable Ca 5.98meq/100g soil. The experiment was laid out in a split plot design with 3 replications. The two varieties of mukhi kachu were Bilashi and local and the sources of nutrients (organic and inorganic). The six source of nutrients were: i) Control ii) Urea 140 kg, TSP 95 kg and MP 145 kg ha^-1; ii) Urea 150 kg, TSP 100 kg: and MP 150 kg ha^-1 iii) Cowdung 5,000 kg ha^-1; iv) Mustard oil cake 100 kg ha-1; and vi) Poultry litters 8000 kg ha^-1. The full dose of TSP, MP, cowdung, decomposed poultry litters and half dose of urea were applied at the time of final land preparation and rest half of urea was top dressed at 60 and 80 days after transplanting of the crop. Mustard oil cake was decomposed for 10 days by adding tap water. It was mixed with 50 g urea, 100 g TSP and 80 g MP kg^-1 and then applied at 60 days after planting at the rhizospherc zone of the crop. There were 36 plots and unit plot size was 4 m x 2 m. Plant samples were collected at 90, 120 and 150 days after planting for growth analysis and the final harvest was done at 180 days after planting. There were 14 plants left per plot for the final harvest. The recorded data on various characters of the crop were statistically analyzed to determine out the significance of variation resulting from the treatments. The differences between the treatment means were compared by Duncan's Multiple Range Test (DMRT).

Source of Information: The Agriculturists 7 ( 1 & 2): 50-56 (2009), ISSN-1729-5211

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Organic and inorganic fertilizers significantly influenced the yields of the two varieties of mukhi kachu. Mustard oil cake was more effective in producing cormels and yields of mukhi kachu than inorganic fertilizers. The variety Bilashi was superior in respect of yield when grown with mustard oil cake.

Knowledge Management: Journal