Improve Growth and Productivity of Fig Trees (Ficus carica L.) by Using Natural Compounds

Abstract

This study was carried out to study the effect of Urtica Dioica, Prosopis Farcta and humic acid and their interactions on the growth and productivity of fig trees. The trees were treated with three levels of foliar spray with each of Urtica Dioica at 0, 150 and 300 mg L^-1 and the Prosopis Farcta at 0, 150 and 300 mg L^-1, and humic acid 0, 200 and 300 mg L^-1. Treatments were applied twice. The first foliar spray was applied on May 1st, 2022, and the second one on June 1st, 2022. One tree was used for each experimental unit in a factorial experiment with three replications. The research came to the following results: foliar spray with Urtica Dioica, especially at 300 mg L^-1 led to a significant increase in all studied characters (leaf area, leaves carbohydrate, TSS, fruit weight and total yield) except total chlorophyll content and total acidity. Foliar spraying of Prosopis Farcta at 300 mg L^-1 led to a significant increase in all studied characters (total chlorophyll content, leaf area, leaves carbohydrate, TSS, fruit weight and total yield) except total acidity.Foliar spraying of humic acid at 300 mg L^-1 led to a significant increase in some studied characters (leaf area, leaves carbohydrate, TSS, fruit weight). There was a significant rise in the binary and triple interactions of the study treatments on all the traits examined, particularly at high study factor levels (300 mg L^-1 Urtica Dioica, 300 mg L^-1 Prosopis Farcta and 300 mg L^-1 Humic acid).