What is the role of iron in apple production?
Iron is required as a precursor to chlorophyll formation and in a number of important plant enzymes. Poor supply restricts photosynthesis and, as a result, reduces leaf growth and resultant fruit yield and quality.
Iron deficiencies in apples
Deficiency leads to characteristic chlorotic yellowing, and sometimes bleaching, of new leaf growth. In severe cases, leaves become scorched in summer months.
Problems are more common on high pH calcareous soils and often due to transient adverse weather, temporary waterlogging, or high copper levels in the soil.
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Apple and pear nutritional summary
Most nutrients are stored and retained as reserves in tree buds, bark and roots. These are then remobilized after winter to fuel leaf growth, flower bloom, fruit formation and growth.
Apple agronomic principles
The aim of every apple grower is a high yield of top quality fruit and there are a large number of agronomic factors which can influence this, many of which are within their control given their specific growing systems and climatic/soil conditions.
Apple nutrient requirements
Apple nutrient requirements vary depending on the crop growth stage. Find out which nutrients are most important at different growth stages.
Apple crop nutrition programme
Yara's apple fertiliser recommendations and crop nutrition programmes can help you to achieve excellent growth and maximise the yield and quality of apples.
Identify and diagnose apple nutrient deficiencies
Identify and diagnose if your apple trees are suffering from nutrient deficiencies and learn more about the symptoms and causes and how to control or correct the deficiency
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