Green Global
Foundation   Journal
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EFFECT OF BORON AND ZINC FERTILIZATION ON FLOWER YIELD AND QUALITY OF GLADIOLUS IN GREY TERRACE SOILS OF BANGLADESH (Pages : 40 - 45)

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 (B2.0Zn3.0 kg/ha) depressed the flower yield. Besides, the highest mean stick weight (55.19g) and the highest flower yield (14.70 t/ha) were recorded with the combined application of B2.0Zn3.0 kg/ha and 122% increase of flower yield was found to be contributed by afore said T11 (B2.0Zn3.0 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. Download