Agrotechnology

Effect of foliar fertilization of zinc levels and some weed control treatments on wheat yield and its associated weeds

4^th International Conference on Agriculture & Horticulture

July 13-15, 2015 Beijing, China

Ibrahim El-Metwally1, M S Abd El-Salam1 and Osama A M Ali2

Posters-Accepted Abstracts: Agrotechnol

Abstract:

Studies were carried out to investigate the efficiency of different post-emergence herbicides (Pyroxsulam, Isoproturon+diflufinican, Isoproturon, Mesosulfuron-methyl, hand weeding and unweeded check) and Zinc levels (0, 1, 2 and 3 gm/L)in wheat crop at the experimental farm of National Research Center, Noubaria region, Egypt during the two successive seasons (2012/13 and 2013/14). Isoproturon+diflufinican achieved the highest weed depression expressed in the lowest number and dry matter of broad-leaved, narrow-leaved and total weeds and reduction percentage in dry matter of total weeds were 93.6% and 93.4% in the first and second season respectively compared with unweeded. Increasing Zinc levels from 1 to 2 and 3 gm/L significantly increased number and dry weight of wheat weeds after 80 days from sowing (DFS). Isoproturon+diflufinican was superior treatment for increasing plant height, spike length, grains number/spike, grains weight/spike, spikes number/m2, straw and grain yields as well as chemical composition of wheat flag leaves and grains. Application of isoproturon+diflufinican herbicide provided 55.1% and 57.8% more grain yield than weedy check in the 1st and 2nd seasons respectively. Application of Zinc at the rate of 3 gm/L recorded the highest value of growth, yield and yield attributes as well as chemical composition of wheat flag leaves and grains. The interaction between zinc levels and weed management treatments had significant effect on total number and dry weight of weeds, spikes number/m2 and grain yield. Isoproturon+diflufinican produced the lowest values of total dry weight of weeds after 80 DFS when water was spraying. While application of 3 gm/L zinc gave the maximum values ofspikes number/m2 and grain yields when isoproturon+diflufinican treatment was applied. It could be concluded that using 3 gm/L Zinc resulted in increment of growth and productivity of wheat crop when isoproturon+diflufinican treatment was used.