Barley responses to copper foliar spray concentrations when grown in a calcareous soil

This study was designed to determine the adequate copper (Cu) foliar spray concentration to correct Cu deficiency on barley (Hordeum vulgare L.) when grown in a calcareous soil. Five Cu foliar spray solution levels were tested (0% or control; 0.03%, 0.06%, 0.13%, and 0.33%). Copper was applied in th...

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Published inJournal of plant nutrition Vol. 41; no. 17; pp. 2266 - 2272
Main Authors Drissi, Saad, Houssa, Abdelhadi Aït, Amlal, Fouad, Dhassi, Khalid, Lamghari, Mohamed, Maataoui, Abdelwahed
Format Journal Article
LanguageEnglish
Published Philadelphia Taylor & Francis 21.10.2018
Taylor & Francis Ltd
Subjects
Barley
calcareous soil
Calcareous soils
Copper
copper deficiency
Crop yield
foliar spray
Grain
Homesteading
Leaves
Sulfate
Zinc
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Summary:This study was designed to determine the adequate copper (Cu) foliar spray concentration to correct Cu deficiency on barley (Hordeum vulgare L.) when grown in a calcareous soil. Five Cu foliar spray solution levels were tested (0% or control; 0.03%, 0.06%, 0.13%, and 0.33%). Copper was applied in the sulfate form at the early boot stage. The results showed that Cu flag leaf concentration was increased with the highest Cu application (0.33%), while Cu concentration in the grain was increased with a spray of 0.03%. An antagonism between Cu, Zn, and Fe leaf concentration was observed. Grain yield and harvest index showed a linear positive response to Cu foliar spray concentrations. A significant increase of 19.6% on grain yield was recorded with a foliar spray 0.33% of Cu.
ISSN:0190-4167
1532-4087
DOI:10.1080/01904167.2018.1509993