Response of Soybean (<i>Glycine max</i>. L.) to Different Rates of NP Fertilizer and Plant Population Densities at Jimma Zone, South Western Ethiopia

Sisay Gurmu; Eshetu Yadete; Muhidin Biya

doi:doi:10.11648/j.plant.20221001.12

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Response of Soybean (Glycine max. L.) to Different Rates of NP Fertilizer and Plant Population Densities at Jimma Zone, South Western Ethiopia

Sisay Gurmu, Eshetu Yadete, Muhidin Biya

Published in Plant (Volume 10, Issue 1)

Received: 4 January 2022 Accepted: 21 January 2022 Published: 28 January 2022

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Abstract

Declining soil fertility status and poor agronomic practices, including minimum use of inorganic fertilizers and inappropriate plant population per hectare are the major reasons for low productivity of soybean. Therefore, the field experiment was conductedto evaluate the response of soybean to different rates of NP fertilizer and plant population density at Jimma South Western Ethiopia during 2015-2017 main cropping seasons. The experiment was laid out in RCBD with 4x4 factorial arrangements with four plant population densities; 333,333, 400,000, 200,000 and 166,666 plants ha^-1, and four NP fertilizer rates; 23/23, 23/46, 46/46, 69/69 kg ha^-1 N/P₂O₅. An interaction effect of plant population densities and NP fertilizer rates was observed for all parameters. The results indicated that as plant population density increased plant height, pod height, grain yield and above ground biomass significantly increased but number of pods per plant was decreased. As NP fertilizer rate increased slightly plant height, number of pods per plant, grain yield and significantly above ground biomass was increased. Significanthighest mean grain yield of 3724 kg ha^-1 was obtained from the highest plant population density of 400,000 plants ha^-1 (50x5cm). Further research must done to conclude the yield response of the crop to plant population density because the yield is significantly increasing up to 400,000 plants ha^-1. Regarding the effect of NP fertilizer rates, the highest grain yield of 3477kg ha^-1 was obtained from 69/69 kg ha^-1 N/P₂O₅ which was statically at par with 46/46 kg ha^-1 N/P₂O₅ fertilizer. In conclusions, plant population density of 400,000 plants ha^-1 (50 cm inter row with 5 cm intra row spacing) with 46/46 kg ha^-1 N/P₂O₅ fertilizer rate were determined for optimum production of soya bean in Jimma area and similar agro-ecologies of the country.

Published in	Plant (Volume 10, Issue 1)
DOI	10.11648/j.plant.20221001.12
Page(s)	8-18
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2022. Published by Science Publishing Group

Keywords

Plant Population, Fertilizer Rate, Grain Yield and Spacing

References

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[9]	Tekalign M, and Haque I (1991). Phosphorus status of some Ethiopian soils, II. Forms and distribution of inorganic phosphates and their relation to available phosphorus. Tropical Agriculture, 68: 2-8.
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[12]	Elmore RW (1991). Soybean cultivar response to planting rate and tillage. Agronomy Journal, 83: 829– 832.
[13]	Kayhan FP, DutilleulP and Smith DL (1999). Soybean Canopy Development as Affected by Plant Population Density and Intercropping with Corn Fractal Analysis in Comparison with Other Quantitative Approaches, Crop Science Journal, 39: 1748-1791.
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[19]	Nebret T (2012). Effect of nitrogen and sulphur application on yield components and yield of common bean (Phaseolus vulgaris L.) In Eastern Ethiopia. M.Sc. Thesis. Haramaya University of Agriculture, Haramaya. P. 23-25.
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Sisay Gurmu, Eshetu Yadete, Muhidin Biya. (2022). Response of Soybean (Glycine max. L.) to Different Rates of NP Fertilizer and Plant Population Densities at Jimma Zone, South Western Ethiopia. Plant, 10(1), 8-18. https://doi.org/10.11648/j.plant.20221001.12

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ACS Style

Sisay Gurmu; Eshetu Yadete; Muhidin Biya. Response of Soybean (Glycine max. L.) to Different Rates of NP Fertilizer and Plant Population Densities at Jimma Zone, South Western Ethiopia. Plant. 2022, 10(1), 8-18. doi: 10.11648/j.plant.20221001.12

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AMA Style

Sisay Gurmu, Eshetu Yadete, Muhidin Biya. Response of Soybean (Glycine max. L.) to Different Rates of NP Fertilizer and Plant Population Densities at Jimma Zone, South Western Ethiopia. Plant. 2022;10(1):8-18. doi: 10.11648/j.plant.20221001.12

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@article{10.11648/j.plant.20221001.12,
  author = {Sisay Gurmu and Eshetu Yadete and Muhidin Biya},
  title = {Response of Soybean (Glycine max. L.) to Different Rates of NP Fertilizer and Plant Population Densities at Jimma Zone, South Western Ethiopia},
  journal = {Plant},
  volume = {10},
  number = {1},
  pages = {8-18},
  doi = {10.11648/j.plant.20221001.12},
  url = {https://doi.org/10.11648/j.plant.20221001.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.plant.20221001.12},
  abstract = {Declining soil fertility status and poor agronomic practices, including minimum use of inorganic fertilizers and inappropriate plant population per hectare are the major reasons for low productivity of soybean. Therefore, the field experiment was conductedto evaluate the response of soybean to different rates of NP fertilizer and plant population density at Jimma South Western Ethiopia during 2015-2017 main cropping seasons. The experiment was laid out in RCBD with 4x4 factorial arrangements with four plant population densities; 333,333, 400,000, 200,000 and 166,666 plants ha-1, and four NP fertilizer rates; 23/23, 23/46, 46/46, 69/69 kg ha-1 N/P2O5. An interaction effect of plant population densities and NP fertilizer rates was observed for all parameters. The results indicated that as plant population density increased plant height, pod height, grain yield and above ground biomass significantly increased but number of pods per plant was decreased. As NP fertilizer rate increased slightly plant height, number of pods per plant, grain yield and significantly above ground biomass was increased. Significanthighest mean grain yield of 3724 kg ha-1 was obtained from the highest plant population density of 400,000 plants ha-1 (50x5cm). Further research must done to conclude the yield response of the crop to plant population density because the yield is significantly increasing up to 400,000 plants ha-1. Regarding the effect of NP fertilizer rates, the highest grain yield of 3477kg ha-1 was obtained from 69/69 kg ha-1 N/P2O5 which was statically at par with 46/46 kg ha-1 N/P2O5 fertilizer. In conclusions, plant population density of 400,000 plants ha-1 (50 cm inter row with 5 cm intra row spacing) with 46/46 kg ha-1 N/P2O5 fertilizer rate were determined for optimum production of soya bean in Jimma area and similar agro-ecologies of the country.},
 year = {2022}
}

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TY  - JOUR
T1  - Response of Soybean (Glycine max. L.) to Different Rates of NP Fertilizer and Plant Population Densities at Jimma Zone, South Western Ethiopia
AU  - Sisay Gurmu
AU  - Eshetu Yadete
AU  - Muhidin Biya
Y1  - 2022/01/28
PY  - 2022
N1  - https://doi.org/10.11648/j.plant.20221001.12
DO  - 10.11648/j.plant.20221001.12
T2  - Plant
JF  - Plant
JO  - Plant
SP  - 8
EP  - 18
PB  - Science Publishing Group
SN  - 2331-0677
UR  - https://doi.org/10.11648/j.plant.20221001.12
AB  - Declining soil fertility status and poor agronomic practices, including minimum use of inorganic fertilizers and inappropriate plant population per hectare are the major reasons for low productivity of soybean. Therefore, the field experiment was conductedto evaluate the response of soybean to different rates of NP fertilizer and plant population density at Jimma South Western Ethiopia during 2015-2017 main cropping seasons. The experiment was laid out in RCBD with 4x4 factorial arrangements with four plant population densities; 333,333, 400,000, 200,000 and 166,666 plants ha-1, and four NP fertilizer rates; 23/23, 23/46, 46/46, 69/69 kg ha-1 N/P2O5. An interaction effect of plant population densities and NP fertilizer rates was observed for all parameters. The results indicated that as plant population density increased plant height, pod height, grain yield and above ground biomass significantly increased but number of pods per plant was decreased. As NP fertilizer rate increased slightly plant height, number of pods per plant, grain yield and significantly above ground biomass was increased. Significanthighest mean grain yield of 3724 kg ha-1 was obtained from the highest plant population density of 400,000 plants ha-1 (50x5cm). Further research must done to conclude the yield response of the crop to plant population density because the yield is significantly increasing up to 400,000 plants ha-1. Regarding the effect of NP fertilizer rates, the highest grain yield of 3477kg ha-1 was obtained from 69/69 kg ha-1 N/P2O5 which was statically at par with 46/46 kg ha-1 N/P2O5 fertilizer. In conclusions, plant population density of 400,000 plants ha-1 (50 cm inter row with 5 cm intra row spacing) with 46/46 kg ha-1 N/P2O5 fertilizer rate were determined for optimum production of soya bean in Jimma area and similar agro-ecologies of the country.
VL  - 10
IS  - 1
ER  -

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Author Information

Sisay Gurmu

Department of Agronomy, Jimma Agricultural Research Center, Jimma, Ethiopia
Eshetu Yadete

Department of Agronomy, Jimma Agricultural Research Center, Jimma, Ethiopia
Muhidin Biya

Department of Agronomy, Jimma Agricultural Research Center, Jimma, Ethiopia

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APA Style

Sisay Gurmu, Eshetu Yadete, Muhidin Biya. (2022). Response of Soybean (Glycine max. L.) to Different Rates of NP Fertilizer and Plant Population Densities at Jimma Zone, South Western Ethiopia. Plant, 10(1), 8-18. https://doi.org/10.11648/j.plant.20221001.12

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ACS Style

Sisay Gurmu; Eshetu Yadete; Muhidin Biya. Response of Soybean (Glycine max. L.) to Different Rates of NP Fertilizer and Plant Population Densities at Jimma Zone, South Western Ethiopia. Plant. 2022, 10(1), 8-18. doi: 10.11648/j.plant.20221001.12

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AMA Style

Sisay Gurmu, Eshetu Yadete, Muhidin Biya. Response of Soybean (Glycine max. L.) to Different Rates of NP Fertilizer and Plant Population Densities at Jimma Zone, South Western Ethiopia. Plant. 2022;10(1):8-18. doi: 10.11648/j.plant.20221001.12

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@article{10.11648/j.plant.20221001.12,
  author = {Sisay Gurmu and Eshetu Yadete and Muhidin Biya},
  title = {Response of Soybean (Glycine max. L.) to Different Rates of NP Fertilizer and Plant Population Densities at Jimma Zone, South Western Ethiopia},
  journal = {Plant},
  volume = {10},
  number = {1},
  pages = {8-18},
  doi = {10.11648/j.plant.20221001.12},
  url = {https://doi.org/10.11648/j.plant.20221001.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.plant.20221001.12},
  abstract = {Declining soil fertility status and poor agronomic practices, including minimum use of inorganic fertilizers and inappropriate plant population per hectare are the major reasons for low productivity of soybean. Therefore, the field experiment was conductedto evaluate the response of soybean to different rates of NP fertilizer and plant population density at Jimma South Western Ethiopia during 2015-2017 main cropping seasons. The experiment was laid out in RCBD with 4x4 factorial arrangements with four plant population densities; 333,333, 400,000, 200,000 and 166,666 plants ha-1, and four NP fertilizer rates; 23/23, 23/46, 46/46, 69/69 kg ha-1 N/P2O5. An interaction effect of plant population densities and NP fertilizer rates was observed for all parameters. The results indicated that as plant population density increased plant height, pod height, grain yield and above ground biomass significantly increased but number of pods per plant was decreased. As NP fertilizer rate increased slightly plant height, number of pods per plant, grain yield and significantly above ground biomass was increased. Significanthighest mean grain yield of 3724 kg ha-1 was obtained from the highest plant population density of 400,000 plants ha-1 (50x5cm). Further research must done to conclude the yield response of the crop to plant population density because the yield is significantly increasing up to 400,000 plants ha-1. Regarding the effect of NP fertilizer rates, the highest grain yield of 3477kg ha-1 was obtained from 69/69 kg ha-1 N/P2O5 which was statically at par with 46/46 kg ha-1 N/P2O5 fertilizer. In conclusions, plant population density of 400,000 plants ha-1 (50 cm inter row with 5 cm intra row spacing) with 46/46 kg ha-1 N/P2O5 fertilizer rate were determined for optimum production of soya bean in Jimma area and similar agro-ecologies of the country.},
 year = {2022}
}

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TY  - JOUR
T1  - Response of Soybean (Glycine max. L.) to Different Rates of NP Fertilizer and Plant Population Densities at Jimma Zone, South Western Ethiopia
AU  - Sisay Gurmu
AU  - Eshetu Yadete
AU  - Muhidin Biya
Y1  - 2022/01/28
PY  - 2022
N1  - https://doi.org/10.11648/j.plant.20221001.12
DO  - 10.11648/j.plant.20221001.12
T2  - Plant
JF  - Plant
JO  - Plant
SP  - 8
EP  - 18
PB  - Science Publishing Group
SN  - 2331-0677
UR  - https://doi.org/10.11648/j.plant.20221001.12
AB  - Declining soil fertility status and poor agronomic practices, including minimum use of inorganic fertilizers and inappropriate plant population per hectare are the major reasons for low productivity of soybean. Therefore, the field experiment was conductedto evaluate the response of soybean to different rates of NP fertilizer and plant population density at Jimma South Western Ethiopia during 2015-2017 main cropping seasons. The experiment was laid out in RCBD with 4x4 factorial arrangements with four plant population densities; 333,333, 400,000, 200,000 and 166,666 plants ha-1, and four NP fertilizer rates; 23/23, 23/46, 46/46, 69/69 kg ha-1 N/P2O5. An interaction effect of plant population densities and NP fertilizer rates was observed for all parameters. The results indicated that as plant population density increased plant height, pod height, grain yield and above ground biomass significantly increased but number of pods per plant was decreased. As NP fertilizer rate increased slightly plant height, number of pods per plant, grain yield and significantly above ground biomass was increased. Significanthighest mean grain yield of 3724 kg ha-1 was obtained from the highest plant population density of 400,000 plants ha-1 (50x5cm). Further research must done to conclude the yield response of the crop to plant population density because the yield is significantly increasing up to 400,000 plants ha-1. Regarding the effect of NP fertilizer rates, the highest grain yield of 3477kg ha-1 was obtained from 69/69 kg ha-1 N/P2O5 which was statically at par with 46/46 kg ha-1 N/P2O5 fertilizer. In conclusions, plant population density of 400,000 plants ha-1 (50 cm inter row with 5 cm intra row spacing) with 46/46 kg ha-1 N/P2O5 fertilizer rate were determined for optimum production of soya bean in Jimma area and similar agro-ecologies of the country.
VL  - 10
IS  - 1
ER  -

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