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Interaction Effect of Variety and Different Fertilizers on the Growth and Yield of Summer Mungbean

Md. Salah Uddin
Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh.

A.K.M. Ruhul Amin
Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh.

Md. Jafar Ullah
Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh.

Md. Asaduzzman
Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh.

Abstract/ Executive Summary:

An experiment was carried out in experimental field of the department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh to investigate the interaction effect of variety and fertilizers on the growth and yield of summer Mungbean during the summer season of 2007. Five levels of fertilizer viz. control, N + P + K, Biofertilizer, Biofertilizer + N + P + K and Bio-fertilizer + P + K. and three varieties BARI mung 5, BARI mung 6 and BINA mung 5 were also used as experimental variables. The experiment was laid out in Randomized Block Design with fifteen treatments where each treatment was replicated three times. Results showed that most of the growth and yield component of mungbean viz. plant height, branch plant^-1, number of nodules plant^-1, total dry matter plant^-1, pods plant^-1, seed plant^-1, seed pod^-1, weight of 1000-seeds, seed yield and straw yield were significantly influence by the bio-fertilizer (Bradyrhyzobium inoculums) treatment except number of leaves and dry weight of nodule. These are influenced by chemical fertilizer and biofertilizer also. All the parameters performed better in case of Bradyrhyzobium inoculums. BARI mung 6 obtained highest number of nodule plant^-1 and higher dry weight of nodule. It also obtained highest number of pod plant^-1, seed plant^-1, 1000 seed weight and seed yield. Interaction effect of variety and bio-fertilizer (Bradyrhyzobium) inoculation was significant of all the parameters. BARI mung 6 with Bradyrhyzobium inoculums produced the highest number of nodule and pod plant^-1. It also showed the highest seed yield, Stover yield and 1000-seed weight.

Keywords: Variety, Biofertilizer, Growth, Yield

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

Start Date: 00-03-2007

End Date: 00-06-2007

Program Area: Crop-Soil-Water Management

Commodity: Mungbean

Objectives:

To study the interaction between the variety and bio and chemical fertilizer of the yield of mungbean.

Methodology:

The experiment was conducted at the Agronomy field laboratory of Sher-e-Bangla Agricultural University, Dhaka, during the period from March to June, 2007 in the summer season. The soil of the experimental site belongs to the agro ecological zone of ‘Madhupur Tract’ (AEZ No. 28). It is deep Red Brown Terrace Soil and belongs to ‘Nodda’ cultivated series. The soil is silty clay loam in texture. P varied from 5.47 to 5.63. The climate is characterized by high temperature and heavy rainfall during kharif season (March-September) and scanty rainfall during rabi season (October-March) associated with moderately low temperature. Three summer Mungbean varieties viz.V₁= BARI Mung 5, V₂=BARI mung 6 and V₃=BINA mung 5 were used as the experimental crops and five fertilizer levels such as F₀=control (No Fertilizer), F₁=Nitrogen + Phosphorus + Potassium, F₂= Bio fertilizer only, F₃= Bio fertilizer + Nitrogen + Phosphorus + Potassium and F₄= Biofertilizer + Phosphorus + Potassium were used for the investigation of interaction effects where all the chemical fertilizers were applied at their recommended dose. and fifteen combined treatments were V₁F₀, V₁F₁, V₁F₂, V₁F₃, V₁F₄, V₂F₀, V₂F₁, V₂F₂, V₂F₃, V₂F₄, V₃F₀, V₃F₁, V₃F₂, V₃F₃ and V₃F₄.The experiment was laid out in a randomize block design having three replications. The unit plot size was 10m² (4.0m X 2.5m). The Bradyrhizobium inoculums used in this study were collected from the Soil Microbiology Laboratory of BINA, Mymensingh. Liquid BINA-MB culture (viz., BINA-MB 441) is used in the experiment. The plots were fertilized as per the designed treatments. Nitrogen, Phosphorus and Potassium were applied in the form of urea, triple super phosphate and muriate of potash. All the fertilizers were incorporated into the soil before sowing of seeds. In case of bio fertilizer, seeds of mungbean varieties were inoculated with Rhizobium inoculums just before sowing. The seeds were kept in polyethylene bags and were soaked with required amount of molasses and water for putting a sticky layer on the seed surface. Thereafter, powdered inocula were mixed thoroughly with the seeds as per treatment with a view to putting a blackish layer on the seed surface. The seeds were dried in the shade before sowing. Seeds were sown on the furrows on 20 March, 2007 and the furrows were covered by soils soon after seeding. During the sowing day the sky was clear, so both inoculated and unino culated seeds were sown on that day starting from morning to afternoon. The line to line (furrow to furrow) distance was maintained at 25 cm with continuous distribution of seeds in the line. Weeding and thinning were done at 18 days after sowing (DAS) when the plant attained at height of about 8-10 cm. Plant to plant distance was maintained at 6-7 cm. Second weeding was done at 35 DAS when the plants attained about 25-30 cm height. A light irrigation was given 15 days after sowing. During experimental period, there was heavy rainfall for several times. So it was essential to remove the excess water from the field. The crop was attacked by pod borer and was successfully H controlled by the application of Malathion 57 EC @ 1.5 L ha^-1 at the time of 50% pod formation stage (55 DAS). The crop was harvested on 5 June, 2007 from prefixed 1.0 m² areas for recording yield data. Before harvesting ten plants were selected randomly from each plot and were uprooted for recording yield contributing characters data. The rest of the plants prefixed 1m² areas were harvested plot wise and were bundled separately, tagged and brought to the threshing floor of Agronomy field laboratory. The collected data were compiled and analyzed statistically using the analysis of variance (ANOVA) technique with the help of a computer package program MSTAT-C and the mean differences were adjusted by Duncan’s New Multiple Range Test.

Source of Information: American-Eurasian Journal of Agronomy 2 (3): 180-184, 2009 ISSN 1995-896X

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Achievement/Findings:

The result of the field experiment showed that Bio-fertilizer (Bradyrhizobium inoculant) was beneficial in nodulation, plant height, number of branch, dry matter production and yield and yield contributing characters of three summer Mung bean varieties (BARI mung 5, BARI mung 6 and BINA mung 5). BARI mung 6 with Bradyrhyzobium inoculums produced the highest number of nodule and pod plant. It also showed the highest seed yield, harvest index and 1000-seed weight. BINA mung 5 with Bradyrhyzobium inoculums showed the highest plant height, number of pods plant and Stover yield. From the above discussion, we saw that BARI mung 6 with inoculums and recommended dose of nitrogen treatment were the best to produce better mungbean during summer season.

Knowledge Management: Journal