Khalil, Zeinab M.; M.A.S Abdel -Wahab and Amera H.M. Hassen( 2013). The effective role of compost, humic Substances and some micronutrients for
Maize grown tjnder saline soilconditions
Egypt. J. of AppL ScL,28 (12) 2013 432-4s1
Abstract: Two field experiments were conducted in a split plot design during two successive suinmer seasons; 20l l and 2012 at Sahl El Tina, North Sinai Governorate. The study aimed at evaluating the influences of soil treatment with compost and foliar application of humic substances (HS) in combination with foliar sprays of some micronutrients namely; Fe, Zn and Mn on maize productivity and nutrients contents of grains, grown on saline soil. The obtained results indicated that usage of compost and HS ronarkably enhanced the growth and yield productivity of maize; the dry weigirt of roots and shoot, ear and grain yiciris ariti i0O-grain weigiht, compared with control. Humic substances effectively augmented these parameters in comparison with compost treatment. Foliar spraying of micronutrients (FerZn+Mn) in combination with compost or HS substantially elevated such parameters. The results also, revealed that mineral nutrients uptake by maize grains; N, P and K as well as Fe, Zn and Mn, significantly increased by application of compost, humic
substances and foliar (Fe+Zn+Mn). Both, Compost and HS treatment had a little effect on Cu taken up by grains. Nevertheless, foliar application of (Fe+Zn+Mn) markedly enhanced it. The highest responses of maize productivity and nutrients uptake by grains were achieved by application of HS in combination with foliar (FerZn+Mn), followed by Compost +. foliar (FerZn+Mn) treatment.
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