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Effect of Boron and Zinc Fertilization on Corm and Cormel Production of Gladiolus in Grey Terrace Soils of Bangladesh

N. K. Halder
Horticulture Research Centre, Bangladesh Agricultural Research Institute, Gazipur, Bangladesh

R. Ahmed
Horticulture Research Centre, Bangladesh Agricultural Research Institute, Gazipur, Bangladesh

S. M. Sharifuzzaman
Horticulture Research Centre, Bangladesh Agricultural Research Institute, Gazipur, Bangladesh

K. Anzu-Man-Ara Bagam
Horticulture Research Centre, Bangladesh Agricultural Research Institute, Gazipur, Bangladesh

M. A. Siddiky
Horticulture Research Centre, Bangladesh Agricultural Research Institute, Gazipur, Bangladesh

Abstract/ Executive Summary:

Field trial of corm and cormel production of gladiolus was carried out at Floriculture field of Horticulture Research Centre, BARI, Gazipur during rabi seasons of 2005-2006 and 2006-2007, respectively. The objectives were to evaluate the response of B and Zn on corm and cormel production and to find out the optimum dose of B and Zn for maximizing yield of bulbs for Gladiolus cultivation. Treatments comprising each four levels of B (0, 1, 2 and 3.0 kg/ha) and four levels of Zn (0, 1.5, 3.0 and 4.5 kg/ha) along with blanket dose of N₃₇₅, P₁₅₀, K₂₅₀, S₂₀ and CD 5 t/ha were used in the study. It was felt in the study that B-Zn integration contributed more than their single applications. The interaction effects of B and Zn @ B2.0, and Zn4.5 kg/ha significantly contributed to the yield of individual corm weight (26.07 g and 27.58 g) and number of cormels (9.78 and 14.43) and weight of cormels/plant (31.94 g and 51.67g) than other B-Zn combination along with control (B₀Zn₀). Single application of B and Zn also contributed to the yield parameters but their response was not pronounced as their integration performed.

Keywords: Yield maximization, Boron, Zinc

Location: Floricultural Research field at Horticulture Research Centre, BARI, Gazipur

Start Date: 00-00-2005

End Date: 00-00-2007

Program Area: Crop-Soil-Water Management

Commodity: Gladiolus

Objectives:

To evaluate the response of corm and cormel to boron and zinc and their optimum requirement for corm and cormel production of Gladiolus.

Methodology:

The field study on B and Zn was carried out at Floricultural Research field at Horticulture Research Centre, BARI, Gazipur during Rabi seasons of 2005-2006 and 2006-2007 respectively. The objective was to evaluate the response of corm and cormel to boron and zinc and their optimum requirement for corm and cormel production of Gladiolus. The fertility status of analyzed soil samples before fertilization was shown. The nutrient status of native soil was found to be almost below critical levels. There were sixteen treatment combination comprising each 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 designed in a randomized block having replications thrice. The unit plot size and row to row spacing were adjusted by maintaining the distance of 0.9 m x 1 m and 25 cm x 15 cm respectively. BARI Gladiolus-1 was taken as a test crop. The combined blanket dose @ N₃₇₅, P₁₅₀, K₂₅₀, S₂₀ and cowdung (CD) 5 t/ha was also included in the treatments. The planting material of uniform sized corms was dibbled on 05 December 05 and 06 respectively. All P, K, S, B, Zn and CD except N were applied and well mixed with the soil during final land preparation. Nitrogen was applied in three equal installments, first 1/3^rdof N at 30, 2nd top-dress at 45 and last 1/3rd at 60 days of sowing. Intercultural practices viz. weeding, irrigation, racking etc were done in time. Five plants were randomly selected from each plot for harvesting corms and cormels at maturity after complete withering of the plants for data recording. The collected data on different parameters were computed and analyzed statistically adjusting with DMRT and LSD test at 5% level of significance.

Source of Information: Int. J. Sustain. Crop Prod. 2(5):85-89, 2007

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

It was conferred from two years study that Boron and Zinc @ B2.0 and Zn4.5 kg/ha along with a blanket dose of N₃₇₅, P₁₅₀, K₂₅₀, S₂₀ and CD 5 t/ha was found to be optimum for corm and cormel production. So, it may be recommended that Boron and Zinc in combination @ B2.0 kg and Zn4.5 kg/ha along with said blanket dose would be suitable for maximizing corm and cormel production in Grey Terrace soils at Joydebpur region of Bangladesh.

Knowledge Management: Journal