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Response of Zinc on Growth, Yield and Quality of Blackgram (vigna Mungo L.)

Abu Sayem Md. Ahsan Habib
Dr. Wazed Research and Training Institute, Begum Rokeya University, Rangpur, Bangladesh

Tuhin Suvra Roy
Department of Agronomy, Sher-e-Bangla Agriculture University, Sher-e-Bangla Nagor, Dhaka, Bangladesh

Md. Ruhul Amin
Department of Agronomy, Sher-e-Bangla Agriculture University, Sher-e-Bangla Nagor, Dhaka, Bangladesh

Md. Ziaul Haque
Department of Crop Botany, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh

Md. Rokonuzzaman
Dr. Wazed Research and Training Institute, Begum Rokeya University, Rangpur, Bangladesh

Prosannajid Sarker
Dr. Wazed Research and Training Institute, Begum Rokeya University, Rangpur, Bangladesh

Abstract/ Executive Summary:

In Bangladesh, many experiments have been done on various pulse crop production treated with micronutrient (Zn) but at the same time less emphasis was given on blackgram production with the same micronutrient. Therefore, a field experiment was conducted to evaluate the growth, yield and quality performance of blackgram cv. BARI mash– 3 as influenced by various levels of Zn fertilizer in Sher-e- Bangla Agricultural University, Sher-e- Bangla nagor, Dhaka- 1207. It was consisted of four Zn levels viz. 0, 1.25, 2.50 and 3.75 kg ha^–1 as soil application. A blanket dose of N20 P150 K50 Kg ha^-1 was also used as recommended dose. The experiment was laid out in randomized complete block design (RCBD) with three replications. All the characters were influenced by Zn fertilization and significantly increased up to 2.5 kg Zn ha^–1 and started to decrease of subsequent Zn levels. Obtained results showed that the plant height (52.28 cm), branches per plant (5.71), number of pods per plant (48.99), pod length (5.06 cm), seeds per pod (6.98), 1000- seed weight (41.60 g), grain yield (1.54 t ha^–1), straw yield (3.69 t ha^–1), biological yield (5.24 t ha^–1), harvest index (29.47%) and protein content of harvested seed (23.44%) had a significant positive effects up to 2.50 kg Zn ha^–1. These results indicated that the application of 2.5 kg Zn ha^–1 would be the most optimum level for maximizing the quality seed yield of blackgram under the region of AEZ–28.

Keywords: Blackgram, Biological yield, Harvest index, Protein content

Location: Agronomy field laboratory, Department of Agronomy, Sher–e–Bangla Agricultural University, Dhaka

Start Date:

End Date:

Program Area: Crop-Soil-Water Management

Commodity: Black gram, Fertilizer

Objectives:

The present study was carried out to investigate the growth, yield and quality performance of blackgram as influenced by different levels of Zn fertilizer.

Methodology:

The experiment was carried out at the Agronomy field laboratory, Department of Agronomy, Sher–e–Bangla Agricultural University, Dhaka. The soil of the experimental site was general soil type of shallow red brown terrace under Tejgaon series and the upper level soils was clay loam in texture under the AEZ–28 and belonged to the Madhupur Tract. The plot was high land, low in micronutrients but fertile and well having pH 5.8. The experiment consists of the variety BARI Mash–3 and four Zn levels viz. 0 Kg ha^–1 (Zn0), 1.25 Kg ha^–1 (Zn1.25), 2.5 Kg ha^–1 (Zn2.5) and 3.75 Kg ha^–1 (Zn3.75). The size of unit plot was (2.5 × 2.0) m² and block to block and plot to plot distances were both 0.50 m. Row to row and plant to plant distances were also 30 and 10 cm, respectively, in each plot. The land was fertilized with different levels of Zn as per treatment and urea (20 kg ha^–1); TSP (150 kg ha^–1) and MOP (50 kg ha^–1) were also used as recommended dose of BARI (2006). Harvesting of the crop was done after 65 days of sowing when about 80% of the pods attained maturity, yield attributes data were recorded at harvest. Total N was determined by using Microkjeldal method. The protein content was determined by multiplying the nitrogen content of seed by 6.25. The data were statistically analyzed with MSTAT–C computer program and the mean values were adjusted by Duncan’s Multiple Range Test (DMRT) at 5% level of probability (Russel, 1986; Gomez and Gomez, 1984).

Source of Information: International Journal of Agronomy and Agricultural Research (IJAAR), Vol. 13, No. 4, p. 73-79, 2018

Article Link (Online Journal): http://www.innspub.net

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

From the study, it revealed that the application of 2.5 kg ha–1 of ZnS0₄ as zinc fertilizer could be the best dose for achieving highest and good quality seed yield of blackgram.

Knowledge Management: Journal