Response of rice (Oryza sativa L.) to foliar application with nutrients and growth regulators

Abstract

A field experiment was carried out at the rice research station in Al-Mishkhab in Al-Najaf Al-Ashraf Governorate - Iraq for the summer season 2012, in order to  investigate the response of the rice crop, Amber 33 variety, to application with nutrients and a growth regulator and its effect on some growth and yield characteristics. A randomized complete block design was used with three replications.. The results showed that there was a significant effect of the different treatments in the experiment, as the treatment of application with the nutrient (GZ) with the growth regulator (Setter-2) achieved the highest averages for the characteristics of plant height, flag leaf area, weight of 1000 grains, and grain yield, reaching 143.73 cm, 21.37 cm², 26.22 g, and 5.657 tons.ha^-1,respectively. depending on the previous data, we can conclude that the use of a combination of nutrients containing nitrogen and potassium with growth regulators such as ascorbic acid and citric acid may lead to an increase in the crop's ability to metabolize and thus increase the growth and yield characteristics of the crop