KHATAB, A. KH., M. F. ABD EL-AZIZ and NADIA, M.HEMEID( 2016). Implication of foliar spray of zn and/or b on growth of broad bean plants (vicia faba) and its uptake of some nutritive elementsPROCEEDINGS of 1st International Conference of Applied Microbiology-March 1-3, 2016
Abstract: A field experiment was conducted to study the effects of foliar spray of Zn and/or B on the growth parameters and yield components of broad bean plants grown in a calcareous soil irrigated with water of high salinity and sodicity hazards. Seeds of Vicia faba, L. (Giza 643) were grown in the experimental farm of El-Arish Agricultural Research Station, North of Sinai Governorate, Egypt, during the two successive seasons of 2013-2014 and 2014-2015. The experiment followed a split plot design. The main plot considered three Zn treatments i.e. 0 (without Zn addition), 250 and 500 mg Zn L-1 as zinc sulphate sprayed on plants at a rate of 300 L fed-1 35 and 50 days after planting. The sub plots considered three boron treatments i.e. 0 (without B addition), 50 and 100 mg B L-1 as boric acid added at a rate of 300 L fed-1 also 35 and 50 days from planting. Results showed that application of Zn or B solely significantly increased chlorophyll a and b as well as all the growth parameters. Such increases seemed progressive with increasing the rate of the applied concerned nutrients. However, the interaction between Zn and B was of insignificant effect on the chlorophyll content and the growth parameters of broad bean plants. The 100 seed weight, seed yield, straw yield and biological yield were significantly increased due to application of Zn or B regardless of rate of the applied nutritive elements. Likewise, the interaction between Zn and B was significant effects on seed yield, straw yield and consequently the biological yield. Moreover, the plant uptake values of the macro nutritive elements of N, P and K as well as the micro nutritive ones i.e. Zn and B were significantly affected due to the applied Zn and B. The micro nutritive elements uptake by both straw and seeds were significantly affected by the interaction between Zn and B.
Keywords: (foliar application of Zn and B, plant growth parameters, biological yield, uptake of nutritive elements, broad beans.)
