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Foliar Feeding of Micronutrient Mixtures on Growth and Yield of Okra (abelmoschus Esculentus)

H. Mehraj
The United Graduate School of Agricultural Sciences, Ehime University, 3-5-7 Tarami, Matsumaya, Ehime 790-8556, Japan

T. Taufique
Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh

M.S.H. Mandal
Scientific Officer
CRP-Hill Agriculture, Krishi Gobeshona Foundation, Bandarban-4600, Bangladesh

R.K. Sikder
Horticulture Development Division, BADC, Dhaka-1000, Bangladesh

A.F.M. Jamal Uddin
Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh

Abstract/ Executive Summary:

An experiment was conducted to study the performance of foliar feeding of micronutrients on growth and yield of okra. Foliar application of 100-ppm of six micronutrients (Zn, B, Fe, Cu, Mo and Mn) mixture were done and treatments were considered as M₁: Control (Fresh water spray) M₂: one times foliar application (20 days after sowing (DAS) and M₃: two times foliar application (20 DAS and 35 DAS). The tallest plant (90.5 cm), longest petiole (29.1 cm), longest internode (12.1 cm) and longest pod (17.4 cm) was also found from M₃, while the shortest from M₁. The maximum stem diameter (3.3 cm), number of leaves (50.8/plant), leaf area (30.9 cm²), number of branches (5.6/plant), number of internodes (21.6/plant), fresh weigth (87.2 g/plant), dry weight (11.6 g/plant), number of pod (34.1/plant), pod diameter (1.7 cm) and yield (368.7 g/plant, 3.2 kg/plot and 17.8 t/ha) was found from M₃, whereas the minimum from M₁. Foliar feeding of micronutrients mixture can increases the growth and yield of okra.

Keywords: Okra, Micronutrient, Growth and yield

Location: Sher-e-Bangla Agricultural University, Dhaka, Bangladesh

Start Date: 00-04-2014

End Date: 00-09-2014

Program Area: Crop-Soil-Water Management

Commodity: Okra

Objectives:

To study the performance of foliar feeding of micronutrients on growth and yield of okra

Methodology:

Experiment was conducted in the Sher-e-Bangla Agricultural University, Dhaka, Bangladesh to find out the performance of okra (BARI Dherosh 1) from April to September 2014. Treatments and experimental design: Foliar application of 100-ppm of six micronutrients (Zn, B, Fe, Cu, Mo and Mn) mixture were applied and treatments were considered as M₁: Control (Fresh water spray) M₂: one times foliar application (20 days after sowing (DAS) and M₃: two times foliar application (20 DAS and 35 DAS) in Randomized Complete Block Design with three replications. The size of the each plot was 1.5 m × 1.2 m. Seeds were sown in the plot with maintaining distance between row to row and plant to plant was 40 cm and 50 cm, respectively. Cowdung @ 10t/ha, urea 120 @ 90 kg/ha, triple super phosphate (TSP) @ 90 kg/ha and muriate of potash (MP) @ 150kg/ha were used, respectively as basal dose. Five plants were randomly selected from each unit plot for the collection of data. Data were collected on plant height, stem diameter, number of leaves/plant, number of branches/plant, length of petiole, number of internode/plant, length of internode, leaf area, fresh weight of plant, dry matter of plant, days to 50% flowering, number of flower buds/plant, number of pods/plant, length of pod, diameter of pod, yield/plant, yield/plot. After harvesting, 150 g plant sample (above ground) previously sliced into very thin pieces were put into envelop and placed in oven maintained at 70°C for 72 hours. The sample was then transferred into desiccators and allowed to cool down at room temperature. The final weight of the sample was taken. The dry matter contents of plant were computed by simple calculation from the weight recorded by following formula:

%Dry matter content of plant = (Dry weight/Fresh weight) × 100

Collected data were analyzed statistically using MSTAT-C computer package program. The significance of the difference among the treatments was estimated by Duncan’s Multiple Range Test (DMRT) at 5% level of probability.

Source of Information: Am-Euras. J. Agric. & Environ. Sci., 15 (11): 2124-2129, (2015)

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Twice (20 DAS and 35 DAS) foliar application of micronutrients mixture was found to be best than the single foliar application (20 DAS) and control. Therefore, foliar application of a micronutrients mixture (Zn,B, Fe, Cu, Mo and Mn) @ 50 ppm is suggested for better plant growth and getting maximum yield from okra.

Knowledge Management: Journal