Effect of spraying different concentrations of Nano-fertilizer and zinc-boron compound on growth and yield of cotton plant Gossypium hirsutum L.

Abstract

The research was carried out in the field of the Cotton Research Unit at the Agricultural Technical College - Mosul during the spring season 2020 to study the effect of spraying the compound nano-fertilizer with three levels (5, 10 and 15) mg / liter and two concentrations of zinc - boron compound (2 and 4 mg/ liter), in addition to Measurement treatment (without spraying) for both factors and the use of a randomized complete block design in the research design with three replications for the cotton crop Ashore variety. The results showed that the highest treatment of 15 mg/L of Nano-fertilizer was significantly superior in all the studied traits under study, and that the treatment of (4) mg/L of zinc-boron on plants led to significant differences between all the studied treatments compared with the measurement treatment. As for the interaction effect between the two factors, the results showed that the higher treatment (15) mg / liter of Nano-fertilizer with spraying with the higher treatment (4)mg/liter of zinc and boron led to giving the highest values in all vegetative growth characteristics and yield (6.1) tons/ hectare result from the highest treatment compared to the lowest yield (3.5 tons/ha) resulting from the comparison treatment for both factors and the components yield of cotton.