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Influence of Zinc and Boron on the Growth and Yield of Chilli

M M Akand
Scientific Officer
Regional Spice Research Centre, BARI, Magura

M M Zaman
Senior Scientific Officer
Regional Spice Research Centre, BARI, Magura

M N Yousuf
Scientific Officer
Regional Spice Research Centre, BARI, Gazipur

M E K Chowdhury
Scientific Officer
Spices Research Center,BARI, Shibganj, Bogra

Abstract/ Executive Summary:

A field study was conducted at Regional Spice Research Centre, BARI, Magura during rabi season of 2010-2011 to evaluate the response of zinc and boron on Green chilli and to find out the optimum dose of zinc and boron for maximizing the yield. Treatments comprising four levels each of zinc (0, 1.5, 3.0 and 4.5 kg/ha) and boron (0, 1.5, 2.0 and 2.5 kg/ha) along with a blanket dose of N120 P80 K120 S20 kg/ha and cowdung 5 t/ha were used in the study. The treatments were arranged in a randomized block design (factorial) with 3 replications. Integrated use of both zinc and boron was found superior to their single applications. The interaction effect between zinc and boron was significant in case of fresh chilli yield and fresh weight of chilli/plant. The highest yield (14.37 t/ha) was recorded from Zn3B1.5 kg/ha, which was closely followed by Z3B2, Zn4.5B2 and they were significantly higher over control (Zn0B0).

Keywords: BORON, CHILLI, GROWTH, YIELD, ZINC.

Location: Regional Spice Research Centre, BARI, Magura

Start Date: 01-10-2010

End Date: 31-07-2011

Program Area: Crop-Soil-Water Management

Commodity: Chilli

Objectives:

To find out the optimum rate of zinc and boron for optimum yield of green chilli.

Methodology:

The experiment was carried out at Regional Spice Research Centre, Magura during rabi season of 2010-2011. The texture of the soil is sandy clay loam belonging in AEZ-11. Chemical properties of this soil are presented in Table-1. Fertility status of initial soil sample of the experimental field at RSRC, Magura during 2010-2011 Texture pH OM (%) Total N (%) Ca Mg K P S Mn Zn B meq/100 g ?g/g Silty clay loam 7.4 1.02 0.052 9.6 3.2 0.16 20 12 7.0 0.61 0.14 Critical level - - - 2.0 0.8 0.2 14 14 5 2 0.20 There were 16 treatment combinations comprising 4 levels each of zinc (0, 1.5, 3.0 and 4.5 kg/ha) and boron (0,1.5, 2.0 and 2.5 kg/ha). Besides, a blanket dose of N120 P80 K120 S20 kg/ha & cowdung 5 t/ha was used in the study. The treatments were arranged in a randomized block design (Factorial) with 3 replications. The plant material used in this experiment was popular local variety of chilli ‘Tangakhali’ and the size of the unit plot was 3m x 2.4 m. All fertilizers and cowdung were applied at the time of final land preparation. Zinc and boron were applied as zinc oxide and boric acid, respectively. Around 45 days old seedlings were transplanted on 28 April, 2010 maintaining a spacing of row to row 50 cm and plant to plant 40 cm. Intercultural operations and plant protection measures were done to keep the plant healthy. Fresh fruits of chilli were harvested five times during the life cycle of the chilli. Crop performance data on plant highest, fruit length, fruit diameter and yield were recorded and statistically analyzed using MSTAT software.

Source of Information: Annual Report, 2011. Spices Research Center, BARI, Shibganj, Bogra

Article Link (Online Journal):

Funding Source:

1. Government

Budget: 25,000/-

Total Budget (Tk.) : 25,000/-

Achievement/Findings:

The yield of fresh chilli increased significantly due to added zinc. The highest yield (12.41 t/ha) was found with 3.0 kg Zn/ha, which was significantly higher over lower dose (1.5 kg Zn/ha) and control but identical with immediate higher dose (4.5 kg Zn/ha). Yield components like fresh weight of fruit/plant, fruit length, fruit diameter were influenced significantly due to application of zinc. The highest fresh yield (11.19t/ha) was obtained with 2.0 kg B/ha, which was significantly higher over control and the highest dose (2.5 kg B/ha). The second highest yield (10.44t/ha) was recorded with 1.5 kg B/ha, which was significantly higher over control but identical with rest of the boron doses. The yield contributing characters like weight of fruit/plant, no of fruits/plant and days of anthesis were increased significantly due to boron. The yield of fresh chilli also increased significantly due to integrated use of both zinc and boron. The highest yield (14.37 t/ha) was recorded form (Zn3 B1.5), which was identically followed by (Zn4.5B2), (Zn3B2) and (Zn3 B2.5) and but significantly higher over rest of their combinations and single application of either zinc or boron. Green chilli was found responsive to both zinc and boron in the study area. Zinc @ 3.0 kg/ha and boron @ 1.5 kg/ha along with a blanket dose of N120P80K120S20 kg/ha and cowdung 5 t/ha appeared as the best-suited combination

Knowledge Management: Report/Proceedings