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Performance of Brinjal as Influenced by Boron and Molybdenum

M. A. Siddiky
Soil and Water Management Section, Horticultural Research Centre, BARI, Gazipur-1701, Bangladesh.

N. K. Halder
Soil and Water Management Section, Horticultural Research Centre, BARI, Gazipur-1701, Bangladesh.

Z. Islam
Soil and Water Management Section, Horticultural Research Centre, BARI, Gazipur-1701, Bangladesh.

R. A. Begam
Soil Science Division, BARI, Gazipur-1701, Bangladesh.

M. M. Masud
Soil Science Division, BARI, Gazipur-1701, Bangladesh.

Abstract/ Executive Summary:

The filed study was carried out at Horticultural Research Farm, BARI, Joydebpur during two consecutive seasons of 2004-05 and 2005-06, respectively to evaluate the response of Binjal to each levels of B (0, 0.75, 1.50 and 2.25 kg ha^-1) and 4 levels of Mo (0, 0.75, 1.50 and 2.25 kg ha^-1) were used in the study for treatment combination. A combined blanket dose of N P K S and CD at the rate of 120:45; 100:20 kg and 5 t ha^-1 were also mixed up in all the treatment plots. It is evident from both first and second year results that B and Mo either in single or in combination made significant response to the yield and yield attributes of brinjal in B-Mo deficient soil of experimental site. Boron produced significantly higher yield 76.52 t ha^-1 and 26% yield increase over B control (B_o). Similarly, Molybdenum also made positive response to the yield of brinjal. All the studied parameters were significantly influenced by applied molybdenum up to 1.50 kg ha^-1. However, the highest brinjal yield (82.24 t ha^-1) was recorded with Mo at the rate of 1.50 kg ha^-1 and beyond that the yield declined steadily. The 88% yield increase was also noticed in the same treatment. Interaction effect of B and Mo was found to be highly responsive to the yield and yield components of brinjal. However, the highest yield (91.67 t ha^-1) was recorded with B-Mo combination at the rate of B_1.50 Mo_1.50 kg ha^-1 and 166% yield increase over B-Mo control (B₀ Mo₀) treatment in 2nd year due to well management practices and favorable agro-climatic condition compared to the first year result.

Keywords: Brinjal, Boron, Molybdenum, Fruit yield

Location: HRC Farm, Joydebpur, Gazipur

Start Date: 00-00-2004

End Date: 00-00-2006

Program Area: Crop-Soil-Water Management

Commodity: Brinjal

Objectives:

To find out the optimum rate of boron and molybdenum for brinjal fruit yield in Joydebpur Grey Terrace Soil.

Methodology:

A field trial on brinjal was conducted at HRC Farm, Joydebpur, Gazipur during the rabi seasons of 2004-2005 and 2005-2006. The soil of the experimental site was silty clay loam in texture. The physical and chemical properties of the analyzed soil sample are shown. The treatments were laid out in a randomized block design (factorial) having replications thrice. There were sixteen treatments combinations comprising each of four levels of boron (0, 0.075, 1.50 and 2.25 kg ha^-1) and four levels of molybdenum (0, 0.075, 1.50 and 2.25 kg ha^-1). The unit plot size and plant spacing were 25 x 75 cm. The variety Kazla (BARI Begun-4) was taken as a test crop. Thirty days seedlings were transplanted on 27 November for both the years of 2004-2005 and 2005-2006, respectively. A combined blanket dose of N₁₅₀ P₄₅ K₁₀₀ S₂₀ kg ha^-1 and 5t CD/ha were applied before final land preparation. Nitrogen was splited into three equal installments. The 1/3rd N was applied around the plants after 15 days of planting, 2nd installment at first flower appearing stage and remaining one at fruiting stage. All necessary intercultural operations like weeding irrigation, spraying pesticides etc. were performed as and when required by the experiment. Young fruits were harvested time to time at edible stage. Five plants were randomly selected from each and every treatment for recording necessary yield data. The collected data were compiled and analyzed statistically adjusted with Duncans Multiplie Range Test (DMRT) and Least Significant Difference at 5% level of significant

Source of Information: Asian Journal of Plant Sciences, 6(2): 389-393, 2007, ISSN 1682-3974.

Article Link (Online Journal): DOI: 10.3923/ajps.2007.389.393; URL: http://scialert.net/abstract/?doi=ajps.2007.389.393

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The two years study felt that Boron at the rate of 1.96 kg ha^-1 (optimum dose), 1.44 kg ha^-1 (economic dose) and that of Molybdenum at the rate of 1.71 kg ha^-1 (optimum) 1.48 kg ha^-1 (economic) along with combined blanket dose of N₁₅₀ P₄₅ K₁₀₀ S₂₀ kg and CD 5 t ha^-1 were found to be optimum for maximizing yield of brinjal. So, it may be suggested that B at the rate of 1.5 kg ha^-1 and Mo at the rate of 1.50 kg ha^-1 along with a blanket dose of N₁₅₀ P₄₅ K₁₀₀ S₂₀ kg and CD 5 t ha^-1 can be suitable fertilizer package for brinjal production in Gray Terrace Soil of Joydebpur.

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