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Effect of Variety and Seed Rate on Yield Performance of Mungbean Under Strip Tillage System

Md. Moshiur Rahman
Bangladesh Agricultural University, Mymensingh, Bangladesh

Taslima Zahan*
Bangladesh Agricultural Research Institute, Gazipur, Bangladesh

M S Ali
Bangladesh Agricultural University, Mymensingh, Bangladesh

M Begum
Bangladesh Agricultural University, Mymensingh, Bangladesh

R W Bell
Murdoch University, Australia

Abstract/ Executive Summary:

A study was conducted at Bangladesh Agricultural University, Mymensingh during March-June, 2013 to evaluate the performance of mungbean varieties and to determine the optimum seed rate under strip tillage system. Three mungbean varieties (BARI Mung-6, Binamung-5 and Binamung-8) were tested against five seeding rates (20, 25, 30, 35 and 40 kg ha^-1). The experiment was laid out in split- plot design with three replications. The study revealed that variety and seed rate had significant effect on plant population, pods plant^-1, pod length, seeds pod^-1, seed yield and stover yield of mungbean. The highest seed yield was obtained from Binamung-5 at 35 kg seed ha^-1 while the highest stover yield was obtained from 40 kg seed ha^-1. For BARI Mung-6 and Binamung-8, 35 kg seed ha^-1 also provided higher seed yield than other seeding rates. Nevertheless, the lowest seed and stover yields were obtained from Binamung-8 with 20 kg seed ha^-1. Therefore, the study concluded that machine seeding of mungbean at 35 kg seed ha^-1 ensure optimum seed yield for tested varieties under strip tillage system and cultivation of Binamung- 5 at 35 kg seed ha^-1 can produce the maximum seed yield under this system.

Keywords: Seed rate, Minimum tillage system, Mungbean, Machine seeding

Location: Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh

Start Date: 00-03-2013

End Date: 00-06-2013

Program Area: Crop-Soil-Water Management

Commodity: Mungbean

Objectives:

The study was taken to examine the performance of mungbean varieties under strip tillage system and to determine the optimum seeding rate for those varieties to obtain maximum yield.

Methodology:

The study was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh from March to June 2013. The experimental site is located at 24^o75´ N latitude and 90^o50´ E longitude in the south-west part of Brahmaputra at an elevation of 18 m above the sea level. The site belongs to non-calcareous dark grey floodplain soil under the agro-ecological zone Old Brahmaputra Floodplain “AEZ-9” (UNDP and FAO, 1988). The experimental field was well drained medium high land with silt loam soil in texture having soil pH of 6.8. The organic matter content of the experimental field was 1.3%. The climate of the experimental site was under the subtropical region characterized by high temperature, high relatively humidity and heavy rainfall with occasional gusty winds during the experimental period.

Three promising mungbean varieties viz. BARI Mung-6, Binamung-5 and Binamung-8 were evaluated against five seed rates (20, 25, 30, 35 and 40 kg ha^-1) in a split-plot design with three replications. Seeds of three mungbean varieties were sown in the experimental field by a two wheel tractor machine named versatile multi-crop planter (VMP) maintaining the seed rates as per experimental specification. Before one week of sowing the seeds, the pre- planting herbicide Roundup® (glyphosate) was applied in the whole field @ 75 mL/10 L water. Seeds of mungbean were inoculated by Rhizobial bio-fertilizer @ 100 g kg^-1 of seeds just before sowing. Di-ammonium phosphate (DAP) and muriate of potash (MP) were applied to supply of phosphorus and potassium @ 80 and 40 kg ha^-1, respectively during along with sowing seed on 27 March 2013 by VMP. Seeds were placed by VMP at about 3-4 cm depth from the soil surface apart from 30 cm to row distance. Number of weed population was counted randomly selected 2 spots of 1 m² area. After counting, weeds were cut at the level of ground, cleaned with fresh water and dried in oven at 60^o C for 72 hours. At maturity, pods were harvested from 02 June to 23 June, 2013. The data on number of plants m^-2, plant height, total number of pods plant^-1, pod length, number of seeds pod^-1 were recorded from randomly selected five plants from outside of the harvested area. Collected data were analysed and means were compared by Duncan’s Multiple Range Test (DMRT) using statistical program MSTAT-C.

Source of Information: Bangladesh Agron. J. 2016, 19(1): 81-86

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The study results expressed that among the three mungbean varieties, the performance of Binamung-5 was superior as it produced the highest seed yield at 35 kg seed ha^-1. In case of BARI Mung-6 and Binamung-8, 35 kg seed ha^-1 also helped to obtain their maximum seed yield. The study also expressed that seeding rate more than 35 kg ha^-1 increased stover yield but decreased seed yield where Binamung-8 at 20 kg seed ha^-1 produced the lowest seed and stover yield in this system.

Knowledge Management: Journal