Growth and Yield of Broccoli (Brassica oleracea L. Var. Corato) as affected by humic acid application
Hawall, I., Raheem, S., Tofiq, G. (2018). Growth and Yield of Broccoli (Brassica oleracea L. Var. Corato) as affected by humic acid application. EKB Journal Management System, 9(9), 739-741. doi: 10.21608/jpp.2018.36398
I. Al-jaf Hawall; Sumaia M. Raheem; Ghuncha K. Tofiq. "Growth and Yield of Broccoli (Brassica oleracea L. Var. Corato) as affected by humic acid application". EKB Journal Management System, 9, 9, 2018, 739-741. doi: 10.21608/jpp.2018.36398
Hawall, I., Raheem, S., Tofiq, G. (2018). 'Growth and Yield of Broccoli (Brassica oleracea L. Var. Corato) as affected by humic acid application', EKB Journal Management System, 9(9), pp. 739-741. doi: 10.21608/jpp.2018.36398
Hawall, I., Raheem, S., Tofiq, G. Growth and Yield of Broccoli (Brassica oleracea L. Var. Corato) as affected by humic acid application. EKB Journal Management System, 2018; 9(9): 739-741. doi: 10.21608/jpp.2018.36398

Growth and Yield of Broccoli (Brassica oleracea L. Var. Corato) as affected by humic acid application

Journal of Plant Production
Article 4, Volume 9, Issue 9, September 2018, Page 739-741  XML PDF (230.85 K)
Document Type: Original Article
DOI: 10.21608/jpp.2018.36398
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Authors
I. Al-jaf Hawall email 1; Sumaia M. Raheem1; Ghuncha K. Tofiq2
1Univ.of Sulaimani, College of Agric. Sciences, Agribusiness and Rural Development Department.
2University of Sulaimani, College of Agricultural Sciences, Horticulture Department.
Abstract
The present study was conducted during the 2016-2017 at University of Sulaimani, College of Agricultural Sciences. This investigation aimed to study the  effect of humic acid (foliar application) with three levels; 2.5, 3.5 and 4.5 ml/L and three levels of (soil application) ; 1.5, 2.5 and 3.5 ml/L, compared with the control (spray with water only) on growth and yield components of broccoli (Brassica oleracea L. var. corato). After 2 weeks from transplanting, the humic acid was added four times to the plants. The experimental design was used is Random Complete Block Design (RCBD), with three replicates was applied and the means compared according to Dunken at 0.05 level. The obtained results showed that soil application in the rate of (1.5 ml/L) achieved the highest results of Plant height (53 cm), fresh weight of main head (403.5 gm) and total yield (50 ton/ha). On the other hand, the highest value of the main head diameter was obtained by foliar application of 2.5 ml/L. In addition, the highest value of TSS was recorded when humic acid as a foliar spray at a rate of 3.5 ml/L, while the amount of NPK were not significantly affected by applications of different doses of humic acid.  These results imply that soil application of humic acid at the rate of 1.5 ml/L could be recommended to use in the agricultural field for producing optimum yields.
Keywords
Broccoli; Humic acid; foliar application; soil application; Sustainability
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