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Response of Summer Mungbeans to Potassium Nitrate

R. K. Dutta
Ex-Director General
BINA, Mymensingh

Dr. Md. Badruddin
Ex-Senior Scientific Officer
Crop Physiology Division, BINA, Mymensingh

Dr. Md. Tariqul Islam
Principal Scientific Officer and Head
Crop Physiology Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh-2202, Bangladesh

B. P. Lahiri
Ex-Principal Scientific Officer
Crop Physiology Division, BINA, Mymensingh

Muslim Uddin
Ex-Scientific Officer
Crop Physiology Division, BINA, Mymensingh

Abstract/ Executive Summary:

Two experiments were conducted at RARS, Ishurdi and BJRI farm, Faridpur with mungbean cultivars Kanti and MB7 during March to May 1992. Three rates of potassium nitrate (0, 20 and 40 kg/ha) were imposed at sowing. The experiments were conducted in a randomized complete block design (RCBD) with three replications. There was significant yield increase due to rates of potassium nitrate but the increment of yield was more due to 20 kg N/ha compared to 40 kg N/ha. Leaf area index, leaf area ratio, total chlorophyll increased due to N-treatments but leg-hemoglobin decreased and crop growth rate, net assimilation rate, relative growth rate, total dry matter were not affected with the N-treatments. The seed yield of Kanti was significantly higher than that of MB-7.

Keywords: Nitrate reductase, Nitrogen, Mungbean

Location: BINA, Mymensingh

Start Date: 01-03-1992

End Date: 31-05-1992

Program Area: Variety and Species

Commodity: Mungbean

Objectives:

Objective of the study was to observe the response of mungbean genotypes to different rates of N-fertilizer.

Methodology:

Two experiments were conducted at RARS, Ishurdi and BJRI farm, Faridpur with mungbean cultivars Kanti and MB7 during March to May 1992. Three rates of potassium nitrate (0, 20 and 40 kg/ha) were imposed at sowing. The experiments were conducted in a randomized complete block design with three replications. The seeds were sown in lines (40 cm) and after the seedling emergence uniform plant population (66 plants/m²) was maintained by eliminating extra plants. Plants at Ishurdi were harvested at maturity ant at BJRI farm, Faridpur were harvested at the age of 45 days. For growth analysis, plants were harvested at the exponential phases of growth from a square meter area in triplicates. Data were analyzed statistically and means were compared by LSD.

Source of Information: BINA Annual Report, 1991-1992: pages 111-116, Mymensingh

Article Link (Online Journal):

Funding Source:

1.

Budget:

Total Budget (Tk.) :

Achievement/Findings:

There was significant yield increase due to rates of potassium nitrate but the increment of yield was more due to 20 kg N/ha compared to 40 kg N/ha.

Knowledge Management: Report/Proceedings