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Effect of Boron and Zinc Fertilization on Flower Yield and Quality of Gladiolus in Grey Terrace Soils of Bangladesh

N.K. Halder
Senior Scientific Officer
Horticulture Research Centre, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur-1701, Bangladesh

M. A. Siddiky
Scientific Officer
Horticulture Research Centre, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur-1701, Bangladesh

R. Ahmed
Scientific Officer
Horticulture Research Centre, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur-1701, Bangladesh

S. M. Sharifuzzaman
Senior Scientific Officer
Horticulture Research Centre, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur-1701, Bangladesh

R. A. Begum
Senior Scientific Officer
Horticulture Research Centre, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur-1701, Bangladesh

Abstract/ Executive Summary:

A field experiment of Boron (B) and Zinc (Zn) on Gladiolus in Grey Terrace Soils was carried out at Floriculture Research field of Horticulture Research Centre, Bangladesh Agricultural Research Institute, Gazipur during Rabi seasons of 2005-2006 and 2006-2007 respectively. The objective was to evaluate the response of Gladiolus to B and Zn fertilizer and to find out the optimum dose of B and Zn for maximizing flower field of Gladiolus. Treatments comprising four levels of B (0, 1, 2 and 3 kg/ha) and four levels of Zn (0, 1.5, 3.0 and 4.5 kg/ha) along with combined blanket dose of N₃₇₅P₁₅₀K₂₅₀S₂₀ and cowdung 5 t/ha were used in the study. BARI Gladiolus-1 was taken as a test flower crop. However, it felt in the field data that B and Zn in their integration made a significant influence on flower yield and floral characters of Gladiolus. It was also inferred in Tables that integrated use of B and Zn was appeared to be more pronounced as compared to their single applications. All the studied flower characters like length and weights of rachis and spike and number and weight of florets per spike and stick weights and size of the florets greater influenced with the increase of B and Zn but subsequent addition of B and Zn beyond that level (B_2.0Zn_3.0kg/ha) depressed the flower yield. Besides, the highest mean stick weight (55.19 g) and the highest flower yield (14.70 t/ha) were recorded with the combined application of B_2.0Zn_3.0 kg/ha and 122% increase of flower yield was found to be contributed by afore said T₁₁ (B_2.0Zn_3.0 kg/ha). This was significantly higher over other treatment combinations and B₀Zn₀. Similar result was also noticed in single applications of B and Zn but their effect was narrowed.

Keywords: Flower yield, Quality, Boron, Zinc

Location: Floriculture field of Horticulture Research Centre, BARI, Gazipur

Start Date: 00-12-2005

End Date: 00-05-2007

Program Area: Crop-Soil-Water Management

Commodity: Gladiolus

Objectives:

To investigate the response of gladiolus to B and Zn and their optimum requirement for growth, flowering, flower quality and corm production of gladiolus

Methodology:

The field trial of B and Zn on gladiolus was conducted at Floriculture field of Horticulture Research Centre, BARI, Gazipur during Rabi season of 2005-2006 & 2006-2007. The objective was to investigate and evaluate the response of gladiolus to B and Zn and their optimum requirement for growth, flowering, flower quality and corm production of gladiolus. Both the soil samples and their nutrient status of Joydebpur experimental site was analyzed. Nutrient status of experimental soils were found to be below critical level and organic matter was also far below of the optimum level. There were sixteen treatment combinations comprising four levels of B (0, 1, 2 and 3 kg/ha) and four levels of Zn (0, 1.5, 3.0 and 4.5 kg/ha) were taken in the study. The experiment was laid out in randomized block design having replicated thrice. The unit plots size and plant spacing were 1m x 0.9 m and 25 cm x 15 cm respectively. BARI Gladiolus-1 was used as a test crop. The combined blanket dose of N₃₇₅ P₁₅₀ K₂₅₀ S₂₀ kg and cowdung (CD) 5 t/ha was taken in the study. The planting material ‘corms’ were sown on 5^th December 2005 & 2006 at both the locations. All P, K, S, B, Zn and CD except N were applied and mixed up with the soil during final land preparation. N was applied in three equal splits, first 1/3^rd of N at 30, second top-dress at 45 and remaining 1/3^rd at 60 days of sowing. Intercultural operations viz. weeding, irrigation, racking etc were performed in time. Full bloomed flowers were cut time to time to record the field data. The collected data of required parameters from 10 randomly selected plants were analyzed statistically and adjusted with DMRT and LSD tests at 5% level of significance.

Source of Information: J.Soil.Nature. 1 (3):40-45, (2007)

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

From, two years study reveals that B @ 2.0 and Zn @ 3.0 kg/ha along with a combined blanket dose of N₃₇₅P₁₅₀K₂₅₀S₂₀ kg and CD 5 t/ha was found to be optimum for gladiolus production. So, it may be concluded that Boron and Zinc @ B_2.0Zn_3.0 kg/ha with said blanket dose could be recommended for maximizing flower yield and quality of Gladiolus at Grey Terrace Soil of Joydebpur region in Bangladesh.

Knowledge Management: Journal