Symptoms
Typical symptoms of zinc deficiency are "little leaf" and "rosetting", caused by short internodes.
Leafs are small, longish and partly yellow in colour.
Often interveinal chlorosis is visible.
Reasons
Severe zinc deficiency
Apples - Shortening of internodes
Symptoms
Typical symptoms of zinc deficiency are "little leaf" and "rosetting", caused by short internodes.
Reasons
Severe zinc deficiency
Zinc deficiency made worse by
Organic soils
High pH soils
Soils rich in phosphorus
Soils receiving high phosphorus application
Cold wet conditions
Zinc is important for
Combats chlorisis and premature leaf fall
Improves resistance to cold weather and late frosts
Improves bud development
Improves flowering
Improves fruit set
Gives better skin finish
Reduces storage disorders
Yara recommended fertilizers for Zinc
YaraVita ZINTRAC 700
Apple: First application at petal fall stage @ 1 ml/litre water (Foliar).
Second application post harvest @ 1 ml/litre water (Foliar).
Maximum water rate: 800 l/acre.