Humic acid enhances morphological traits and yield components of dryland wheat

In order to study the effects of Humic acid on yield and yield components of the Azar۲ wheat cultivar, a field experiment was conducted in a split plot with ۳ replications in a randomized complete block design, in which the main factor included ۴ levels of Humic acid granule application as pre-sowing application (control, ۱۰۰, ۲۰۰, and ۳۰۰ kg/ha-۱ Humic acid) and the sub-factor included ۴ levels of Humic acid as seed coating in the proportions (۰% as control, ۳%, ۶% and ۹% W/w). The results showed that the highest biomass, total weight, relative growth rate, and thousand-seed weight of wheat were observed in the ۹% Humic acid seed coating treatment. Also, the highest chlorophyll index, plant dry weight, and plant height were observed in the ۳۰۰ kg Humic acid fertilizer treatment under rainfed conditions. It seems that the use of Humic acid, due to its special properties, can play a role in achieving stable wheat yield.

کلیدواژه ها:

Seed coating ، Azar ۲ wheat cultivar ، Pras Humic