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Effectiveness of Integrated Nutrient Management on Growth and Yield Parameters of Okra (abelmoschus Esculentus L.)

Masud Rana
Department of Agriculture, Faculty of Science, Noakhali Science and Technology University, Noakhali-3814, Bangladesh

Md. Morshedul Islam
Corresponding author
Department of Plant Pathology, Faculty of Agriculture, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

Md. Atiqur Rahman Bhuiyan
Department of Agriculture, Faculty of Science, Noakhali Science and Technology University, Noakhali-3814, Bangladesh

Abstract/ Executive Summary:

Integrated use of organic and inorganic fertilizers could improve both growth and yield of okra plant. The present study was carried out to evaluate the effect of organic and inorganic fertilizer on growth and yield parameters of okra (Abelmoschus esculentus L.) at the experimental area of Noakhali Science and Technology University, Bangladesh during the period of 18th December 2018 to 19th March, 2019 (Rabi season). In this experiment, “Arka Anamika” variety of okra was used. The experiment was laid out in Randomized Complete Block Design (RCBD) with four treatments viz. T₁= INM (organic and inorganic), T₂= Inorganic (NPK), T₃= Organic (cowdung), T₄= Control and three replications. Data were taken on the growth and yield parameters such as plant height (cm), number of leaves per plant, number of branches per plant, days to first flowering (days), number of fruit per plant, individual fruit weight (gm), fruit length (cm) and fruit diameter (cm). Among all treatments INM (organic and inorganic) was responsible for highest plant height (49.96 cm), the maximum number of leaves per plant (22.33) and branches per plant (6.33), accelerated days to first flowering (39 days), increases the number of fruit per plant (14.33), individual fruit weight (24.89 gm), fruit length (15.5 cm) and fruit diameter (1.98 cm). So this study clearly indicated that, among all treatments, INM (Organic and inorganic) performed the best and it will be suitable for okra production.

Keywords: Okra, Inorganic fertilizer, Organic fertilizer, Growth, Yield

Location: Agriculture Department, Noakhali Science and Technology University, Bangladesh

Start Date:

End Date:

Program Area: Quality and Nutrition

Commodity: Okra

Objectives:

To find out the response of okra to organic and inorganic fertilization and to identify the possible fertilizer treatment which enhances both growth and yield of okra.

Methodology:

Experimental site:

The study was carried out during the period of 18th December 2018 to 19th March, 2019 (Rabi season) at the research field of the Agriculture Department, Noakhali Science and Technology University, Bangladesh. The climate of the experimental area has subtropical and it has significant rainfall in most months, with a short dry season. Mechanical analysis of soil indicated that soil of the experimental plot was sandy loam. The chemical analysis revealed that soil has pH 7.5-8.3 and is slightly saline.

Experimental material and design:
In this experiment, “Arka Anamika” variety was used as the test crop and the experiment was laid out in Randomized Complete Block Design (RCBD) and four treatments with three replications.

Experimental treatment:
In this experiment four treatments were considered:
1. T1= INM (Organic + Inorganic fertilizer): Cowdung (5 t/ha) + Recommended dose of NPK ha-1 (40 kg: 50 kg: 30 kg)
2. T2= Inorganic fertilizer: Recommended dose of NPK ha-1 (40 kg: 50 kg: 30 kg)
3. T3= Organic fertilizer: Cowdung (10 t/ha)
4. T4= Control (no fertilizer are used),

Land preparation:
The land was prepared to fine tilth by repeated ploughing and harrowing. Cowdung and all fertilizers except urea were applied during final land preparation. Seed sowing was done on 20th December 2018 in the plots and maintaining the distance of (35×15) cm. Before sowing, seed treatment was done with Furadan @ 5gm. Intercultural operations was done properly when required.

Data collection:
Data on the following parameters were recorded from the experimental plot. The height of each plant was measured (cm) from the base of the plant to the apex with a tape measure. Height of the okra plants were recorded at 30, 45 and 60 days after sowing. Randomly selected branches of okra plants were used for the measurement of leaves number per plant at 30, 45, and 60 days after sowing. The number of branches per plant was recorded at 30, 45 and 60 days after sowing. Number of days from sowing to first flower opening was recorded as days to first flowering (days). The number of fruits per plant was recorded at 70 days after sowing. After harvesting individual fruit weight (gm), fruit length (cm) and fruit diameter (cm) were recorded.

Data analysis:
The mean values of all the recorded parameters were evaluated and analysis of variance was performed using the 'F' test. The significance of the difference among the treatment means was estimated by Least Significant Different (LSD) test at 5% level of probability.

Source of Information: Asian Australas. J. Food Saf. Secur. 2020, 4 (2), 41-48; ISSN 2523-1073 (Print) 2523-2983(Online)

Article Link (Online Journal): www.ebupress.com/journal/aajfss

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Integrated nutrient management can furnish large portion of macro and micronutrients in soil that influences vegetative and reproductive traits of plant. It also improved the soil health and quality which is important for okra production. So, combined application of organic and inorganic fertilizers are essential for obtaining better growth, higher yield attributes and superior quality of okra fruits. Hence, it can be concluded that, integrated nutrient management has been considered as best treatment for getting higher yield with quality okra production under field conditions and further study should be continued in different seasons and different agro-ecological zones of Bangladesh for better production.

Knowledge Management: Journal