Tests for the control of ferric chlorosis in table grape
Trial conducted in Grottaglie (TA) in 2020.
Variety: Vittoria (on 140 R.) – Soil: sandy-clayey
Nano.T Fe first effects
June
In June, despite being in the full phase of grape growth and with the effects of chlorosis already quite evident, we still wanted to test the potential contribution of Nano.T Fe on the vegetative state of the plants at doses comparable to equivalent Fe supplies, applied by chelates on the roots but at higher doses of formulation.
In the photos it is possible to see that 6 days after the application with Nano.T Fe the old leaves already show signs of turning green while the new ones show no symptoms.
Test comparison
August (before the harvest)
Inglese
In the photos it is possible to notice the evidence of iron chlorosis symptoms in the control; in the test treated with a chelated product the symptoms are still present even if reduced compared to the control; in the test treated with Nano.T Fe the symptoms are instead practically absent.
Final remarks
- No problems encountered in the solubilization and
injection phases into the fertigation system, with usual farm conditions.
- Positive response of plants with emission of new leaves without deficiency or in any case reduction of the deficiency
even in the most critical situations.
- The farmer has noticed a general decrease in the
level of chlorosis in the vineyard, compared to previous years.
- Applications at budding and pre-flowering would undoubtedly have generated even better results
injection phases into the fertigation system, with usual farm conditions.
even in the most critical situations.
level of chlorosis in the vineyard, compared to previous years.