Keywords : Humic acid
Effect of adding some organic fertilizers on some nutrients and hormones content of faba bean (Vicia faba L.) leaves
journal of kerbala university,
2011, Volume 7, Issue 4, Pages 93-99
An experiment was conducted to study the effect of eleven treatments of organic fertilizer as well as chemical recommending fertilizer and control without fertilizer. It included adding poultry manure, cattle manure, granular humus and foliage with humic acid, seaweed extract and some combinations on broad bean leaves content of some nutrients . It was carried out at the farm of Agric. Coll. Babylon in 2012/2013 growth season as a simple experiment according to Randomized Complete Block Design with three replications . The results could be summarized as follows:
All fertilization treatments caused a significant increase in nitrogen concentration in leaves compared to control. Poultry and cattle manure, humus and chemical fertilizer caused a significant increase in leaves P concentration compared to control. All treatments (except seaweed extract ) significantly increased K concentration in leaves compared to control. Adding poultry or cattle manure , whether alone or with humic acid were significantly superior on chemical fertilizer in increasing K. While all transactions ( except poultry manure) had no significant effect on Na concentration in leaves compared to control. Most organic treatments and the chemical fertilizer caused increases in leaves Ca concentration compared to control treatment.