Phosphorus increases the potential for fruiting by increasing the number of flower clusters, their intensity and the level of top fruit set.
Increasing Top Fruit Number
Fruit number in top fruit trees results from a variety of factors, including planting density, orchard system, pruning and thinning practices and also crop nutrition. The desired fruit size should be considered when managing crop load since allowing too many fruits to remain on the tree will result in smaller fruits and reduce tree vigor.
Crop Nutrition and Top Fruit Number
Phosphorus
Boron
Because boron is not readily translocated within the tree, it is most critically used as foliar applications targeted at key periods of flower and fruit formation so as to maintain flower set.
Zinc
Pre-bloom applications of zinc can help aid the recovery of winter injured trees and also ensure supplies are not limiting during flowering and new fruit formation.
Magnesium
Magnesium is important in ensuring good growth, but at relatively low levels. It has a critical role to play in leaf growth and good flowering with minimal fruitdrop.
Recommended Yara Fertilizers for Top Fruit
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YaraMila COMPLEX
12-4.8-14.9 + 8% S - Prilled NPK fertilizer which also contains magnesium and sulphur as well as micronutrients ideal for use on a wide range of arable and horticultural crops.
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YaraLiva TROPICOTE
15.5% N + 18.8% Ca - Granular calcium nitrate fertilizer for field application to a wide range of crops.
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YaraVita ZINTRAC 700
A fully formulated flowable liquid micronutrient fertilizer containing 700 g/l zinc for foliar application to prevent and treat zinc deficiency on a wide range of crops.
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YaraVita BORTRAC 150
A liquid micronutrient fertilizer containing 150 g/l boron for foliar application to provide additional boron or to treat boron deficiencies in a wide range of crops.
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YaraVita SENIPHOS
A liquid micronutrient fertilizer containing high concentrations of phosphate and calcium for foliar application to improve yield and quality in fruit and potatoes.
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YaraVita STOPIT
A liquid micronutrient fertilizer containing 160 g/l calcium for foliar application to control and reduce calcium related disorders in top fruit and other crops.
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YaraVita BUD BUILDER FL
A flowable liquid suspension fertilizer with nutrients and micronutrients including magnesium, zinc, nitrogen, boron and phosphate for foliar application to improve the flowering of top and soft fruit.