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Varietal Effect with Different Doses of Phosphorus Fertilizer on the The Yield and Yield Contributing Characters of Winter Mungbean

M.R. Islam
Department of Agronomy, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

N. Islam
Department of Agronomy, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

M.A.R. Sarkar
Department of Agronomy, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

F. Zaman
Department of Agronomy, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

A.K.M.M. Islam
Department of Agronomy, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

H. Kato-Noguchi
Department of Applied Biological Science, Faculty of Agriculture, Kagawa University, Miki, Kagawa 761-0795, Japan

Abstract/ Executive Summary:

The experiment was conducted to study the effect of variety with different level of phosphorus fertilizers on the growth parameters and seed yield of winter mungbean during November 2010 to March 2011 in the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh. Four varieties of mungbean viz. BINA Mung-1, BINA Mung-3, BARI Mung-4 and BARI Mung-5 and four levels of phosphorus viz. 0, 12, 25 and 35 kg P ha^-1 were used in the experiment. The experiment was laid out in randomized complete block design (RCBD) with three replications. Results revealed that among the variety BARI Mung-5 the highest number of pods plant^-1(20.45), mature pods plant^-1 (14.97), pod length (5.49 cm), number of seeds pod^-1 (17.78), seed weight plant^-1 (29.49 g), 1000 seeds weight (40.68 g), straw yield (3.00 t ha^-1), biological yield (4.34 t ha^-1), harvest index (36.06%) and seed yield (1.34 t ha^-1). Among the phosphorus level, the highest number of pods plant^-1 (19.52), pod length (5.64 cm), number of seeds pod-1 (16.41), weight of 1000 seeds (39.39 g), harvest index (35.94%), straw yield (2.99 t ha^-1) and seed yield (1.32 t ha^-1) were obtained from the application of 25 kg P ha^-1. The interaction effect showed, BARI Mung-5 fertilized with 25 kg P ha^-1 gave highest result in all growth parameters and seed yield (1.34 t ha^-1). It was observed that increase level of phosphorus fertilizer exhibited an increase in number of seed plant-1 and reached the maximum at 25 kg P ha^-1 and further increase of phosphorus did not increase the seed number plant^-1. Further higher dose of phosphorus decreased the values of all yield contributing characters and seed yield. It is concluded that BARI Mung-5 fertilized with 25 kg P ha^-1 gave the highest number of pods plant^-1 (20.98), pod length (6.30 cm) and seed yield (1.44 t ha^-1) compared with other treatments and it may be recommended.

Keywords: Mungbean, Variety, Phosphorus, Growth, Seed yield

Location: Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh

Start Date: 00-11-2010

End Date: 00-03-2011

Program Area: Crop-Soil-Water Management

Commodity: Mungbean

Objectives:

To observe the growth and yield of four winter mungbean varieties with the application of different levels of phosphorus fertilizers and determine the optimum dose of phosphorus for obtaining higher yield of winter mungbean

Methodology:

The experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during November 2010 to March 2011 in randomized complete block design with three replications. The experimental field is located at 24.75°N latitude and 90.5°E longitude at an altitude of 18m above from the sea level. The soil belongs to the Old Brahmaputra Alluvium Soil under Agro-ecological Zone-9. The climate of the locality is sub-tropical. The climate is characteristics by scanty rainfall associated with moderately low temperature during the period from November to March. The experimental soil was silty loam in texture with pH 6.7. The experiment comprised four varieties of mungbean viz. BINA Mung-1, BINA Mung-3, BARI Mung-4 and BARI Mung-5 obtained from the Plant Breeding Division of Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh, and Bangladesh Agricultural Research Institute (BARI), Joydebpur, Gazipur, respectively and four levels of phosphorus application viz. 0, 12, 25 and 35 kg P ha^-1. The experimental field was prepared by repeated spading followed by laddering. After spading and laddering all the stubble and weeds were removed from the field. Before final land preparation, N and K fertilizers were applied at the rate of 20 and 30 kg ha^-1, respectively to the experimental ‘field’ as basal dose. Phosphorus was applied in form of TSP following the treatment specification of the experiment. Initially, the experimental area was divided into three blocks to represent three replications. There were 48 unit plots in the experiment. Each block was divided into 16 sub- plots. Block to block and plot to plot distances were 1.0m and 0.5m, respectively. The unit plot size was 4.0 m ×2.5 m. The sowing depth was maintained at about 3 cm from the soil surface. Thinning of seedlings were done at 20 days after sowing (DAS) of mungbean seeds for maintaining uniform plant stands. First weeding was done at the time of thinning and second weeding after five weeks of sowing. No irrigation was given to the plot during the experimental period as there was no symptom of moisture stress. Insecticide (Diazinon) was applied to protect the crop from insect infestation. The crop was first harvested when about 80% pods of the plants became mature. The mature pods were harvested by hand picking from the crop plants of the individual plots and were kept separately in properly tagged gunny bags. Then the harvested pods were sun dried. The properly dried pods were bitten to release the seeds from the pods. Then the seeds were separated from the husk and cleaned. Harvesting was done in three times. The collected seeds were dried in the sun to keep the moisture content at about 12% level. The dried and cleaned seed and straw were weighed plot wise and converted to kg ha^-1. Data on different parameters were recorded from randomly selected plants in each plot. Seed yield and straw yield together were regarded as biological yield. The biological yield harvest index were calculated.

The collected data were analyzed statistically using the analysis of variance (ANOVA) for each of the characters under study was done by F (variance) ratio. The difference among treatment means were compared by Duncan's Multiple Range Test with the help of a computer based statistical package programme MSTAT-C.

Source of Information: Int. J. Sustain. Crop Prod. 9(2):38-46, (2014)

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

It can be concluded that BARI Mung-5 performed better than BARI Mung-4, BINA Mung-3 and BINA Mung-1 in respect of production. Application of phosphorus up to 25 kg P ha^-1 increased the seed yield, but further higher dose of phosphorus decreased seed yield. BARI Mung-5 grown with 25 P ha^-1 emerged as the promising one in respect of seed yield ha^-1 compared to other treatment combinations.

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