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Journal of Soil Sciences and Agricultural Engineering
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Fouda, K., Abd-Elhamied, A. (2017). Integrated Effect of Foliar Fertilization of Fe, Zn and Rates of P Fertilization on Growth and Yield of Cowpea. Journal of Soil Sciences and Agricultural Engineering, 8(12), 733-740. doi: 10.21608/jssae.2017.38244
K. Fouda; A. Abd-Elhamied. "Integrated Effect of Foliar Fertilization of Fe, Zn and Rates of P Fertilization on Growth and Yield of Cowpea". Journal of Soil Sciences and Agricultural Engineering, 8, 12, 2017, 733-740. doi: 10.21608/jssae.2017.38244
Fouda, K., Abd-Elhamied, A. (2017). 'Integrated Effect of Foliar Fertilization of Fe, Zn and Rates of P Fertilization on Growth and Yield of Cowpea', Journal of Soil Sciences and Agricultural Engineering, 8(12), pp. 733-740. doi: 10.21608/jssae.2017.38244
Fouda, K., Abd-Elhamied, A. Integrated Effect of Foliar Fertilization of Fe, Zn and Rates of P Fertilization on Growth and Yield of Cowpea. Journal of Soil Sciences and Agricultural Engineering, 2017; 8(12): 733-740. doi: 10.21608/jssae.2017.38244

Integrated Effect of Foliar Fertilization of Fe, Zn and Rates of P Fertilization on Growth and Yield of Cowpea

Article 11, Volume 8, Issue 12, December 2017, Page 733-740  XML PDF (249.5 K)
Document Type: Original Article
DOI: 10.21608/jssae.2017.38244
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Authors
K. Fouda1; A. Abd-Elhamied2
1Soil Sci. Dept., Fac. of Agric., Mansoura Univ., Egypt.
2Soil Sci. Dept., Fac. of Agric., Damietta Univ., Egypt.
Abstract
At the Experimental Farm of Faculty of Agriculture, El-Mansoura University, Egypt, a field experiment was carried out, to investigate the effect of zinc and iron individually or mixed as foliar application on cowpea plant growth, chemical composition, yield and its components as well as availability of nutrients in the soil, all that under phosphorus application effect. The experiment was laid out in split plot design with three replicates, assigning twelve treatments consisting of three levels of phosphorus (50, 100 and 150% from recommended dose) as main plot, and four levels of micronutrients foliarly (without, Zn, Fe and Zn+Fe) as sub plot. As for the effect of P-fertilization, the results show that all treatments significantly increased vegetative growth (plant height (cm), no. of branches/plant, no. of leaves/plant), yield and its components (No. of pods/plant, No. of seed/pod, 100 seed weight g and Seed yield Kg/fed.) as well as chemical (N, P, K, Zn and Fe) and quality composition (chlorophyll content, c.protien, T. carbohydraties and C. fiber.). These effects were more obvious especially at higher concentrations of these treatments 150% RD except chlorophyll content, quality parameters with 100% RD.  The highest mean values of available P, Zn and Fe in the soil were recorded for the plants treated with P-fertilization at the rate of 100% from recommended dose, whereas the lowest values of available N and K were realized for the same treatment.  On the other hand, foliar application with micronutrient has a significant effect on cowpea growth. The highest values of parameters observed with the mix of (Zn+Fe) comparing with the untreated plant. Moreover, the mix of micronutrient (Zn+Fe) recorded the highest values of available P, Zn and Fe, whereas the highest values of available N and K were recorder with the untreated plant. The interaction effect between P fertilization and micro nutrients show a promotive effect on growth parameters with using mix of Zn+Fe. The highest mean values of parameters was recorded under 150% P from RD, whereas the highest mean values of chlorophyll content, quality parameters and available P, Zn and Fe recorded with 100% P from RD and the lowest values of available N and K were realized for the same treatment.
Keywords
phosphorus fertilization; zinc; iron; foliar application; Cowpea
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