Bio-fortification of Potato Plants with different Nitrogen Rates and Applied Iron Forms in Presence and Absent of Azotobacter sp.
Sakara, H., badour, A. (2020). Bio-fortification of Potato Plants with different Nitrogen Rates and Applied Iron Forms in Presence and Absent of Azotobacter sp.. EKB Journal Management System, 60(4), 449-467. doi: 10.21608/ejss.2020.43816.1386
Hanaa Mohamed Sakara; ahmed gamal el-deen badour. "Bio-fortification of Potato Plants with different Nitrogen Rates and Applied Iron Forms in Presence and Absent of Azotobacter sp.". EKB Journal Management System, 60, 4, 2020, 449-467. doi: 10.21608/ejss.2020.43816.1386
Sakara, H., badour, A. (2020). 'Bio-fortification of Potato Plants with different Nitrogen Rates and Applied Iron Forms in Presence and Absent of Azotobacter sp.', EKB Journal Management System, 60(4), pp. 449-467. doi: 10.21608/ejss.2020.43816.1386
Sakara, H., badour, A. Bio-fortification of Potato Plants with different Nitrogen Rates and Applied Iron Forms in Presence and Absent of Azotobacter sp.. EKB Journal Management System, 2020; 60(4): 449-467. doi: 10.21608/ejss.2020.43816.1386

Bio-fortification of Potato Plants with different Nitrogen Rates and Applied Iron Forms in Presence and Absent of Azotobacter sp.

Egyptian Journal of Soil Science
Article 43, Volume 60, Issue 4, December 2020, Page 449-467  XML PDF (1.47 MB)
Document Type: Original Article
DOI: 10.21608/ejss.2020.43816.1386
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Authors
Hanaa Mohamed Sakara email 1; ahmed gamal el-deen badour2
1soil Dep., Agric., Mansoura Univ., Egypt
2Soil, Water and Environment Res. Inst., Agric. Res. Center, Giza, Egypt
Abstract
Field investigation during 2018-2019 and 2019-2020 were carried out to study the effect of nitrogen fertilization and iron applications on potato plants in presence or absence of azotobacter. The experiment was laid out in split-split plot design with three replications having 16 treatments arrangement as; four rates of nitrogen fertilization (0, 50, 75 and 100% N from recommended dose) as main plot, two forms of iron (soil and foliar) as sub plot and Azotobacter inoculation (presence and absence) as sub-sub plot one. The findings indicate that growth parameters (i.e. plant height, fresh and dry weights), yield attributing parameters (i.e. fresh weight of tuber (g plant -1), No. of tubers per plant, average tuber weight (g) and dry matter of tubers (%) as well as total yield; (ton fed-1), chemical content as N, P, K%, Fe mg.kg-1 in leaves and tuber, leaves chlorophyll content as well as potato quality (i.e. total carbohydrates, starch (%), vitamin C (mg 100g -1) and NO3-N;(mg kg -1) ) increased with an increase in nitrogen levels with maximum values being obtained on application of 75% N from recommended dose. However, highest values for all traits were recorded with foliar application of Fe-EDTA, also, in presence of azotopacter. So, it can be concluded that 75% N + Fe-EDTA + azotobacter produced the best potato yield and quality compared to other treatments.
Keywords
Nitrogen fertilization; iron; azotobacter and potato plants
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