Evaluate the Effect of Green Fertilizer and Two Sources of Potassium on Growth , Yield , some Chemical Constituents of Roselle Plants (Cv. Sabaheia 17) and the Availability of Macronutrients in Soil after Harvest
Abu El-Fotoh, H., Abd El-Rahman, L., El-Kalawy, S. (2019). Evaluate the Effect of Green Fertilizer and Two Sources of Potassium on Growth , Yield , some Chemical Constituents of Roselle Plants (Cv. Sabaheia 17) and the Availability of Macronutrients in Soil after Harvest. EKB Journal Management System, 10(12), 821-832. doi: 10.21608/jssae.2019.79579
Hanan M. Abu El-Fotoh; Lamyaa A. Abd El-Rahman; Samia M. S. El-Kalawy. "Evaluate the Effect of Green Fertilizer and Two Sources of Potassium on Growth , Yield , some Chemical Constituents of Roselle Plants (Cv. Sabaheia 17) and the Availability of Macronutrients in Soil after Harvest". EKB Journal Management System, 10, 12, 2019, 821-832. doi: 10.21608/jssae.2019.79579
Abu El-Fotoh, H., Abd El-Rahman, L., El-Kalawy, S. (2019). 'Evaluate the Effect of Green Fertilizer and Two Sources of Potassium on Growth , Yield , some Chemical Constituents of Roselle Plants (Cv. Sabaheia 17) and the Availability of Macronutrients in Soil after Harvest', EKB Journal Management System, 10(12), pp. 821-832. doi: 10.21608/jssae.2019.79579
Abu El-Fotoh, H., Abd El-Rahman, L., El-Kalawy, S. Evaluate the Effect of Green Fertilizer and Two Sources of Potassium on Growth , Yield , some Chemical Constituents of Roselle Plants (Cv. Sabaheia 17) and the Availability of Macronutrients in Soil after Harvest. EKB Journal Management System, 2019; 10(12): 821-832. doi: 10.21608/jssae.2019.79579

Evaluate the Effect of Green Fertilizer and Two Sources of Potassium on Growth , Yield , some Chemical Constituents of Roselle Plants (Cv. Sabaheia 17) and the Availability of Macronutrients in Soil after Harvest

Journal of Soil Sciences and Agricultural Engineering
Article 13, Volume 10, Issue 12, December 2019, Page 821-832  XML PDF (702.17 K)
Document Type: Original Article
DOI: 10.21608/jssae.2019.79579
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Authors
Hanan M. Abu El-Fotoh; Lamyaa A. Abd El-Rahman email ; Samia M. S. El-Kalawy
Soils, Water and Environ. Res. Inst., Agric. Res. Center, Giza, Egypt
Abstract
A  field experiment was carried at El-Gemmeiza Agric. Res. Station, El-Gharbihya Governorate, Egypt during the two successive summer seasons of 2017 and 2018 to evaluate the effect of  green fertilizer  (faba bean) and two  sources of potassium (mineral potassium sulphate (KS) 48 % K2O)  or natural  feldspar (KF)  10.6 % K2O  with  three  levels   50, 75 and 100 % of the recommended rate (RR) beside untreated  (control treatment)   on  growth, yield,  sepals  chemical constituents  and  the availability of macronutrients in soil after harvest of Roselle  plants (cv. Sabaheia 17)  under clay soil conditions. Fourteen treatments were carried out including the combinations of two levels of green fertilizers and six potassium fertilizes, while control treatments contain no fertilizers. A RCBD using a split plot was applied. Results revealed that growth and yield traits of Roselle plants including plant height, number of branches/plant, total dry weight/plant, fruit weight/plant, number of fruit/plant, seed weight/plant, sepals fresh and dry weight per plant and fed. and total yield of seeds/fed., leaf total chlorophyll and carotenoides, anthocyanin concentration, total carbohydrates, total acidity and P percentage in sepals were markedly improved when the green fertilizer combined with fertilizing with  75 % of the recommended Potassium rate (RR) in the form of feldspar (KF) (10.6 % K2O)   equal 530.65 kg /fed., was applied.The interaction between green fertilizer and fertilizing with 100 % RR in the form of KF possessed the greatest availability of N, P, K, pH and EC in the soil after harvest.
Keywords
Green Fertilizer; Potassium Fertilizer; Roselle plant
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