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Effects of Tillage Practices and Irrigation on the Yield and Nodulaton of Mungbean

N. Salahin
Soil Science Division,Bangladesh Agricultural Research Institute, Gazipur-1701, Bangladesh

R. A. Begum
Soil Science Division, Bangladesh Agricultural Research Institute, Gazipur-1701, Bangladesh

M. S. Islam
On-Farm Research Division, Bangladesh Agricultural Research Institute, Kishorgonj, Bangladesh

M.T. Rahman
Regional Agricultural Research Station, Bangladesh Agricultural Research Institute, Ishurdi, Pubna. Bangladesh

M. K. Alam
Soil Science Division,Bangladesh Agricultural Research Institute, Gazipur-1701, Bangladesh

Abstract/ Executive Summary:

Two identical field experiments were conducted at Regional Agricultural Research Stations, Rahmatpur and Ishurdi during 2009 and 2010 to evaluate the effects of tillage practices and irrigation of the yield and nodulation of mungbean (cv. BARIMung 6). There were mine treatment combinations comprising three tillage practices (minimum tillage, tillage up to 8 cm depth and tillage up to 12 cm depth) and three levels of irrigations (no irrigation, one irrigation and two irrigation). The physical properties of soil were not significantly affected by tollage and irrigation except soil moisture content. Tillage and irrigation and considerable role on nodulation of mungbean. The highest number of nodules plant-1 was found in tillage up to 12 cm depth which was statistically different from other tillage treatments and the lowest in minimum tillage. In case of nodules plant-1 and nodule weight plant-1 the maximum values were found in one irrigation treatment which was statistically similar with two irrigation treatments and no irrigation gave the lowest result. There was a significant effect of tillage and irrigation on the seed yield of mungbean. Tillage up to 12cm depth plus one irrigation was found to produce highest seed yield in both locations. Similar trend was noticed in case of biomass yield.

Keywords: Tillage Practices, Irrigation on mungbean, Nodulation of mungbean, Biomass yield.

Location: Soil Science Division, Bangladesh Agricultural Research Institute, Gazipur-1701, Bangladesh

Start Date: 00-00-2009

End Date: 00-00-2010

Program Area: Crop-Soil-Water Management

Commodity: Water management, Mungbean

Objectives:

To find out the optimum tillage practices and irrigation for higher mungbean production.

Methodology:

The treatments comprises of three levels of tillage practices i.e. T₀: minimum tillage, T₁: tillage up to 8 cm depth and T₂: tillage up to 12 cm depth and three levels of irrigation i.e. I₀: no irrigation, I₁: 1 irrigatin and I₂: 2 irrigations. The experiment was conducted in a split-plot design with three replications. Irrigation was assigned in the main plot and tillage in the sub-plots. The unit plot size was 5 m x 4 m. Fertilizer at the rates of 20 kg N, 18 kg p and 18 kg K per hectare were added to every plot as basal dose. Mungbean cv. BARIMung-6 was sown in the third week of February and harvested in fourth week of April. Irrigation was applied at 20 and 35 days after seeding (DAS). After the harvest, total biomass of mungbean was incorporated into soil except control plot. Soil samples were collected from 0-30 cm depth and analyzed in the laboratory following standard methods. Cultural practices were done as and when necessary. Plants with roots were collected at 50% flowing from each unit plot and dry weight of shoots and nodules including nodule numbers were taken. Ten plants from each plot were selected for data collection/ Data were recorded on yield and yield contributing characters and subjected to statistical analysis through ANOVA and mean separation following DMRT.

Source of Information: Bangladesh Journal of Agriculture, Vol: 36(2), pp: 29-34, ISSN: 0253-5408

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Ploughing by power tiller i.e., tillage up to 12 cm depth along with one irrigation at 20 days after sowing (DAS) performed better yield and nodulation of mungbean. The soil physical properties not significantly changed due to tillage and irrigation.

Knowledge Management: Journal