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Interaction Effect of Phosphorus and Zinc on the Concentrations of N, P, K, S and Zn in Mungbean Stover and Seed

A. Barman
Scientific Officer
Bangladesh Agriculture Research Institute, Joydepur, Gazipur-1701, Bangladesh

M. J. Chowdhury
Depertment of Agronomy, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh

T. S. Mahabub
Institute of Seed Technology, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh

M. Quamruzzaman
Depertment of Agronomy, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh

A. Mondul
Depertment of Agronomy, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh

Abstract/ Executive Summary:

A field experiment was conducted at the Sher-e-Bangla Agricultural University Farm, Dhaka 1207, during the kharif season of 2014 to study the effects of Phosphorus and Zinc on the concentrations of N, P, K, S and Zn in Mungbean stover and seed (BARI mug 6). Four levels of phosphorus (P) (0, 15, 20 and 25 kg P ha^-1) and three levels of zinc (Zn) (0, 1.5 and 3 kg Zn ha^-1) were used in the study. The results revealed that The N, P, K and S concentration of mungbean plant increased significantly from control to P2Zn2 (20 kg P ha-1 + 3 kg Zn ha^-1) treatment combination and again decreased with increasing phosphorus more than 20 kg P ha^-1. Application of phosphorus and zinc increase organic carbon, N, P, K and S status of post harvest soil significantly.

Keywords: Mungbean, phosphorus, zinc, concentration of N P K S & Zn

Location: Experimental farm of Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka-1207

Start Date: 01-04-2014

End Date: 31-07-2014

Program Area: Crop-Soil-Water Management

Commodity: Mungbean

Objectives:

To study the effects of Phosphorus and Zinc on the concentrations of N, P, K, S and Zn in Mungbean stover and seed (BARI mug 6).

Methodology:

The experiment was conducted in the experimental farm of Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka-1207, Bangladesh during the period from April to July, 2014. The location of the experimental site was at 23.75’ N latitude and 90⁰34’ E longitude with an elevation of 8.45 meter from sea level. Soil of the study site was silty clay loam in texture belonging to series. The area represents the Agro- Ecological Zone of Madhupur tract (AEZ-28) with pH 5.8-6.5, ECE-25.28. BARI mug 6, a high yielding variety of mungbean was released by Bangladesh Agricultural Research Institute, Joydebpur, Gazipur in 2003. It is photo insensitive, semi synchronous maturity, short lifespan (60 to 65 days) and bold seeded crop. Its yield potentiality is about 2 t ha^-1. This variety is resistant to yellow mosaic virus diseases, insects and pest attack. The plot selected for the experiment was opened by power tiller driven rotovator on the 10th April 2014, afterwards the land was ploughed and cross-ploughed several times followed by laddering to obtain a good tilth. The experiment consisted of two factors: Factor A: Phosphorus (P), P₀= No P ha^-1, P₁=15 kg P ha^-1, P₂=20 kg P ha^-1and P₃=25 kg P ha^-1; Factor B: Zinc (Zn), ₀Zn = No Zn ha^-1; ₁Zn =1.5 kg Zn ha^-1 and ₂Zn =3 kg Zn ha^-1. Levels of these two nutrient elements made 12 treatment combinations. The experiment was laid out in a Randomized Complete Block Design (RCBD), with three replications. The total number of plots was 36, each measuring 2.5 m x 2 m. Recommended blanket doses of N, K and Sulphur (20 kg N from urea, 30 kg K from MoP and 15 kg S ha^-1 from Gypsum, respectively) were applied. The whole amounts of MoP, Gypsum and half of Urea fertilizer were applied as basal dose during final land preparation. Rest of the Urea was applied 28 days after sowing. The required amounts of P (from TSP) and Zn (from Zinc oxide) were applied at a time as per treatment combination after field layout of the experiment and were mixed properly through hand spading. Mungbean seeds were sown on 18th April 2014 in lines following the recommended line to line distance of 30 cm and plant to plant distance of 10 cm.Various intercultural operations such as thinning of plants, weeding and spraying of insecticides were accomplished whenever required to keep the plants healthy and the field weed free. The crop was harvested at maturity on 18th June 2014. The harvested crop of each plot was bundled separately. Ten (10) plants from each plot were selected as random and were tagged for the data collection. Data were collected at harvesting stage. The collected data were analyzed with the help of MSTAT-C program and mean values of all the parameters were adjusted by Duncan’s Multiple Range Test (DMRT) at 5% level of probability.

Source of Information: International Journal of Scientific and Research Publications, Volume 5, Issue 2, February 2015

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Nutrient concentration (N, P, K, S and Zn) in stover and seed were positively affected due to P and Zn fertilization. The interaction effect of P and Zn was also found remarkable. The N, P, K, S and Zn concentration in stover and seeds also increased with increasing level of P and Zn up to certain level. Based on the results of the present study, the following recommendation may be drawn - Application of Phosphorus and Zinc fertilizers @ 20 kg P ha^-1 and 3 kg Zn ha^-1 (P₂Zn₂) may be the best combination for higher nutrient concentration of mungbean stover and seed and also to maintain soil fertility and productivity than their individual application in Tejgaon series under AEZ No.28 in Bangladesh.

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