Jacklin G. Sadek ; Hanaa H. Rafla andLinda W. Anton( 2012). RESPONSE OF FABA BEAN (VICIA FABA) GROWN ON A NEWLY RECLAIMED SAND SOIL TO MIXTURE OF CHELATED MICRONUTRIENTS AND COMPOSTEgypt . J. of Appl. Sci., 27 (12B) 1012-1033
Abstract: Two field experiments were carried out at Ismailia Agricultural Research Station, Ismailia Governorate, during two successive seasons of 2007/ 2008 and 2008/2009 to identify the response of faba bean Giza 717 variety to micronutrients (Zn, Mn, Fe, and Cu) and compost (plant residual) either singly or in combination. Micronutrients were in the form of EDTA compound i-e Zn-EDTA (14% Zn), Mn-EDTA (12% Mn), Fe-EDTA (13% Fe) and Cu-EDTA (12% Cu). Application comprised three different methods, soaking, foliar spray and coating methods. In the soaking and foliar applications, these elements were applied at 200 and 400 mg/l for each nutrient. Soaking was performed for 24 hour. However these nutrients were sprayed after 45 and 70 days from sowing at rate of 400l / fed.. For coating methods application of each nutrients was at 200 and 400 mg/ kg seeds before sowing. Compost as an organic fertilizer was mixed with the upper 15 cm of the soil at rate of 20 m3 / fed. before sowing. Results revealed that effective action of 400 mg/l added as soaking followed by foliar spray methods and 400 mg/kg seed applied as coating methods in increasing significantly yield and yield components. Since the percentage of increases in seeds yield reached to 18.26, 15.14 and 12.01%, respectively for the first season. Likewise 19.44, 15.93 and 12.53%, at a respective order for the second season. Corresponding increases significantly in macronutrients (nitrogen, phosphorus and potassium), micronutrients (zinc, manganese, iron and copper) concentrations and uptake, crude protein percent in seeds. Such increases were accompanied by decreases significantly for those parameters in straw for two growing seasons. Significant increases in protein yield in seeds and straw as compared with the control treatment for two growing seasons.
The obtained data showed that application of compost at rate of 20 m3 / fed. gained significant increases for all studied characters as well as their values were maximized as result of the combination compost with micronutrients. The beneficial effect of the applied treatments included compost plus 400 mg/l for each Zn, Mn, Fe, and Cu, applied as soaking followed by spraying and then coating methods which induced the highest significant increases not only yield and yield components but also on macro- and micronutrients, also crude protein percent and protein yield for two growing seasons for faba bean Giza 717 cultivar.
Keywords: (Faba bean, micronutrients (Zn, Mn, Fe and Cu), compost)
