Effect of potassium nanochelate and zinc nanochelate on some morphological characteristics of African parsley flower (Tagete erecta) in saline soil

Cultivation of plants in arid and semi-arid regions is very important due to the salinity of the production resources. One of the things that affects the growth process in these areas is the management of nutrients through the use of nanofertilizers. In order to investigate the effect of the application of nano fertilizers in saline soil on some morphological traits of parsley flower of the African parsley variety (T. erecta), a research was conducted in the form of a completely randomized design in Garmsar city. Plants in 7 treatments and 3 replications and each replication contains 3 samples with 3 concentrations of 12% zinc nano-chelate (750 mg/L, 1.5 g/L and 3 g/L) and 3 concentrations of 27% potassium nano-chelate (1 mg/L liter, 2 mg/liter and 4 mg/liter) and no fertilizer application (control) were treated by foliar spraying. In this study, plant height, shoot weight, root weight, shoot dry weight and root dry weight were evaluated. The results showed that the zinc chelate nanofertilizer treatment of 3 grams per liter had the highest effect on all the examined traits except the height trait and the potassium chelate nanofertilizer treatment of 2 grams per liter had the greatest effect on the height trait and showed a significant difference with other treatments. In general, it can be concluded that the best type of nanofertilizer to improve the morphological characteristics of parsley (T. erecta) in saline soil is the use of 12% zinc chelate nano-fertilizer in the amount of 3 grams per liter