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Influence of Inorganic and Organic Fertilizers on Growth and Yield of Soybean

A. Mamia*
Department of Agronomy Sher-e-Bangla Agricultural University, Dhaka-1207,Bangladesh

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

T.S. Roy
Department of Agronomy Sher-e-Bangla Agricultural University, Dhaka-1207,Bangladesh

G. M. Faruk
Deputy Secretary, Ministry of Health and Family Welfare

Abstract/ Executive Summary:

The experiment was executed at the Agronomy research field of Sher-e-Bangla Agricultural University, Dhaka-1207, during the period from November, 2015 to March, 2016 to study the effects of fertilizer management of different combinations of inorganic and organic fertilizers on growth, yield attributes and yield of soybean (var. BARI Soybean 6). The treatment combinations wereT0= Control, T1= fertilization at recommended fertilizer dose (RFD - urea 50 kg ha^-1, TSP 150 kg ha^-1, MoP 100 kgha^-1, gypsum 80 kg ha^-1 and boron 500 kg ha^-1), T2= Bio-fertilizer + 50% RFD, T3= Bio- fertilizer + 75% RFD, T4= Mixed fertilizer + 50% RFD, T5= Mixed fertilizer + 75% RFD, T6= Vermi-compost + 50% RFD, T7= Vermicompost + 75% RFD, T8= Poultry litter + 50% RFD and T9= Poultry litter + 75% RFD. Results indicated that application of fertilizer at recommended dose, vermi-compost + 75% RFD and poultry litter + 75% RFD produced higher grain yield 2053, 2073 and 2166 kg ha^-1, respectively over control. It was also observed thatconsidering the sustainable yield and environment friendly,poultry litter + 75% RFD (T9) and vermi-compost + 75% RFD (T7) couldbe promising for soybean cultivation.

Keywords: Soybean, Growth, Yield, Fertilizer, Biofertilizer, Poultry litter, Vermicompost

Location: Agronomy research field of Sher-e-Bangla Agricultural University, Dhaka-1207

Start Date: 00-11-2015

End Date: 00-03-2016

Program Area: Crop-Soil-Water Management

Commodity: Soybean, Fertilizer

Objectives:

The present study was undertaken to investigate the effects of different combinations of inorganic and organic fertilizers on growth performances, yield attributes and yield of soybean.

Methodology:

The experiment was conducted at the Agronomy field of Sher-e-Bangla Agricultural University (SAU). It is situated at 23074' North latitude. The land was medium high and soil texture was silty clay with pH 6.1.The treatments of the experiment were as follows: T0: Control (without fertilizer),T1: Recommended Fertilizer Dose (RFD), T2: Bio-fertilizer + 50% RFD , T3: Bio- fertilizer + 75% RFD, T4: Mixed fertilizer + 50% RFD, T5: Mixed fertilizer + 75% RFD, T6: Vermi-compost + 50% RFD, T7: Vermi-compost + 75% RFD, T8: Poultry litter + 50% RFD and T9: Poultry litter + 75% RFD. The experiment was laid out in randomized complete block design with 3 replications. The size of unit plot was 3m×2m. Distance maintained between replication and plots were 1.0m and 0.75m, respectively. Well rotten poultry litter and vermi- compost were applied @ 10 and 2 t ha^-1, respectively before final land preparation according to treatment. The recommended inorganic fertilizer dose used for soybean was 50-150-100-80-0.5 kg ha^-1 as Urea, TSP, MP, Gypsum and Boric acid, respectively. Full amount of all fertilizers as per treatment applied during final land preparation as basal dose. Seeds of the var, BARI Soybean-6 was sown on 25 November, 2015 in lines distance of 30 cm and plant to plant 5-6 cm. A light irrigation was given before sowing seed. First, second and third irrigation was given on 20, 35 and 56 days after sowing. The crop was protected from insects and ants through the application of Babiston 250 WP on seed line. At different stages of crop growth (30, 45, 60, 75 DAS and at harvest), the height of five randomly selected plants from each plot were collected and sampled and data on plant height, dry weight of plant as well as yield contributing characters were recorded. The crop was harvested on 15 May, 2016. Grain yield was adjusted to 12% moisture content. The obtained data for different characters were statistically analyzed with the computer based software MSTAT-C and the difference among treatment means were estimated by the Least Significant Difference (LSD) test at 5% level of probability (Gomez and Gomez, 1984).

Source of Information: Bangladesh Agron. J. 2018, 21(1): 77-81

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

It may be concluded from the present study that inorganic fertilizer at recommended dose, vermicomost + 75% RFD and poultry litter + 75% RFD showed the better performance on growth and yield contributing characters of soybean. But considering the yield and sound environment, vermicomost + 75% RFD and poultry litter + 75% RFD could be used instead of inorganic fertilizer without significantly yield reduction. Poultry litter + 75% RFD and vermicomost + 75% RFD may be environment friendly management for higher soybean yield.

Knowledge Management: Journal