Zinc Studies with Seedlings

Using Nemaguard seedlings growing in sand, we conducted a series of experiments comparing different zinc formulations. The seedlings were grown with a nutrient solution containing no zinc until deficiency symptoms were observed. Foliar applications of zinc products then restored normal growth, some better than others. From these experiments we concluded that zinc sulfate (36% Zn) is one of the most effective materials, and certainly the most cost effective.

2010 FREP Report

FREP Final Report 2008 - 2010

Seedling studies - Click on photo to enlarge

Zinc deficient peach seedling

Nemaguard peach seedling with zinc deficient laterat shoots

Peach seedlings ready to be sprayed with zinc formulations

Peach seedling sprayed with zinc formulation

Peach seedling after treatment with foliar zinc material (left) compared to unsprayed control (right)

Typical response in leaf growth from zinc materials sprayed on zinc deficient peach seedlings