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Response of Capsicum to Boron and Zinc Application in Terrace Soils of Gazipur, Bangladesh

R. Ahmed
Scientific Officer
Horticulture Research Centre, Bangladesh Agricultural Research Institute (BARI), Gazipur

M. A. Siddiky
Senior Scientific Officer
Horticulture Research Centre, BARI, Gazipur

M. R. Karim
Scientific Officer
Horticulture Research Centre, Bangladesh Agricultural Research Institute (BARI), Gazipur

M. A. Quddus
Senior Scientific Officer
Horticulture Research Centre, BARI, Gazipur

S. Ahmed
Scientific Officer
Biotechnology Division, BARI, Gazipur, Bangladesh.

Abstract/ Executive Summary:

A field experiment was conducted at vegetables research field of Horticulture Research Centre, Gazipur in terrace soils under Madhupur Tract (ΑEZ 28) during rabi seasons of 2009-10, 2010-11 and 2011-12 to determine the optimum dose of boron and zinc for yield maximization of capsicum. There were sixteen treatment combinations comprising four levels each of B (0, 1, 2 and 3 kg ha-1) and Zn (0, 2, 3 and 4 kg ha-1) along with blanket dose of N150P65K120S20 kg ha^-1 including cow dung 10 t ha^-1were used. The experiment was laid out in RCBD factorial with three replications. Results revealed that maximum mean number of fruits per plant (11.1), the highest fruit length (9.29 cm) and diameter (7.34 cm), maximum individual weight of fruits (122 g) were recorded from the combination treatment of B2.0Zn3.0 and the highest mean yield (31.8 t ha^-1) was also recorded from the same treatment. The 84.8% yield increase over control (B0Zn0) due to combined application of B2.0Zn3.0 kg ha^-1. The combined application of zinc and boron were observed superior to their single application. Therefore, the combination of B2.0Zn3.0 treatment may be considered as suitable dose for capsicum cultivation in terrace soils of Bangladesh.

Keywords: Capsicum, Boron and zinc, Terrace soils, Yield

Location: At vegetables research field of Horticulture Research Centre, Gazipur in terrace soils under Madhupur Tract (?EZ 28)

Start Date: 00-00-2009

End Date: 00-00-2012

Program Area: Crop-Soil-Water Management

Commodity: Capsicum, Fertilizer

Objectives:

To find out the optimum dose of boron and zinc for maximizing the yield of capsicum in Terrace soils of Bangladesh.

Methodology:

The field experiment was carried out at the vegetable research field of Horticulture Research Centre, BARI, Gazipur during Rabi season of 2009-10, 2010-11 and 2011-12 to find out the optimum dose of boron and zinc for yield maximization of capsicum. Experimental site-Gazipur (24° 0′ 13″ N latitude and 90° 25′ 0″ E longitude) lies at an elevation of 8.4 m above the sea level. The terrace soil of Gazipur belongs to Chhiata series (Soil taxonomy: Udic Rhodustalf) under the agro ecological zone Madhupur Tract and texture is clay loam. There were 16 treatment combinations comprising four levels each of B (0, 1, 2 and 3 kg ha-1) and Zn (0, 2, 3 and 4 kg ha-1) along with a blanket dose of N150P65K120S20 kg ha-1 and 10 t ha^-1 cow dung was used. The treatments were arranged viz. T1= B0Zn0; T2= B0Zn2; T3= B0Zn3; T4= B0Zn4; T5= B1Zn0; T6= B1Zn2; T7= B1Zn3; T8= B1Zn4; T9= B2Zn0; T10= B2Zn2; T11= B2Zn3; T12= B2Zn4; T13= B3Zn0; T14= B3Zn2; T15= B3Zn3; and T16= B3Zn4. Before setting the experiments, initial soil samples were collected from the experimental field from 0-15 cm depth and the collected samples were analyzed for chemical properties using standard procedures in the laboratory. The land was prepared thoroughly by a tractor driven siezel and rotavator. The experiment was laid out in RCBD factorial with three replications. The unit plot size was 2 m × 1 m along with spacing of 50 cm x 40 cm. Nitrogen, P, K and S were supplied as urea, TSP, MoP and gypsum fertilizer, respectively. All P, K, S fertilizer including cow dung were applied and mixed up well at the time of final land preparation. Boron and zinc were applied as boric acid and zinc sulphate in the respective treatments plot during final bed preparation. The 25 days old capsicum (var. California wonder) seedlings were transplanted at three consecutive years on 18 December 2009, 19 December 2010 and 18 December 2011. Urea was applied in three equal splits at 30, 45 and 60 days after transplanting. Poly tunnels were used for minimizing the night temperature. Intercultural practices like weeding, irrigation, spraying pesticides etc. were done in time. Data on plant height, number of fruits per plant, length, diameter and individual fruit weight were recorded from five randomly selected plants. All the necessary data on different parameters were computed for statistical analysis and adjusted with DMRT at 5% level of significance.

Source of Information: Bangladesh J. Agril. Res. 42(1): 43-52, March 2017 ISSN 0258-7122 (Print), 2408-8293 (Online)

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

From the trial, it could be concluded that combined application of boron and zinc at 2 kg and 3 kg ha^-1, respectively with blanket dose of N150P65K120S20 kg ha^-1 and cow dung 10 t ha^-1 gives higher yield of capsicum in terrace soil under Madhupur Tract (AEZ 28). The quadratic response function, the optimum-economic dose of boron and zinc were calculated to be 2.15 and 2.48 kg ha^-1, respectively. So, the farmers of Gazipur can use B2.15Zn₂.48 kg ha^-1 for capsicum cultivation.

Knowledge Management: Journal