What are the recommended fertilizer doses in apple?

Apple trees require proper nutrition for healthy growth, regular flowering, and the production of good-quality fruits. Since apple orchards remain in the same place for many years, maintaining soil fertility and giving the correct amount of fertilizers each year is very important. Good nutrient management helps trees develop strong shoots, produce more fruit buds, and give higher yields. When fertilizers are not applied correctly, apple trees may show weak growth, poor fruit size, and irregular bearing. Understanding the recommended fertilizer doses helps farmers keep their orchards productive and healthy.
The fertilizer requirement of apple trees mainly depends on their age. Young trees need more nutrients for vegetative growth, while mature trees need balanced nutrition to support flowering and fruiting. In general, apple trees require nitrogen (N), phosphorus (P), potassium (K), and organic matter for overall growth.
For young apple plants (1–3 years old), the fertilizer requirement is relatively low. Farmers usually apply around 150–250 g nitrogen, 125–200 g phosphorus, and 75–150 g potassium per tree per year. These doses support the development of branches, roots, and canopy. Along with chemical fertilizers, adding 20–25 kg of farmyard manure (FYM) every year improves soil structure and moisture retention.
As the tree grows older (4–7 years), the fertilizer requirement increases. During this stage, the tree begins forming fruit buds and needs more nutrients. Farmers generally apply 250–400 g nitrogen, 200–300 g phosphorus, and 150–250 g potassium per tree per year. FYM should also be increased to around 30–40 kg per tree, which provides organic carbon and improves soil health.
For mature, fruit-bearing apple trees (8 years and above), the nutrient demand is at its highest. On average, farmers apply 400–500 g nitrogen, 250–350 g phosphorus, and 250–350 g potassium per tree per year. FYM requirement rises to 40–50 kg per tree. These nutrients support flowering, fruit setting, and proper fruit growth. Potassium is especially important during fruit development because it improves fruit size, colour, taste, and shelf life.
Fertilizers should not be applied all at once. The best time to apply FYM and chemical fertilizers is during late winter or early spring, just before new growth begins. Nitrogen can be applied in two splits—half at the start of the growing season and the remaining half after fruit set. Phosphorus and potassium can be given in one dose because they remain stable in the soil and are absorbed slowly by the tree.
Micronutrients also play a crucial role in apple orchards. Zinc, boron, calcium, and magnesium are essential for improving fruit quality and preventing disorders. Zinc deficiency leads to small leaves and poor fruit set, while calcium deficiency can cause bitter pit in fruits. Foliar sprays of micronutrients before flowering and during early fruit development help maintain proper nutrition.
Proper irrigation supports nutrient uptake. Apple trees absorb nutrients efficiently when the soil has adequate moisture. However, waterlogging should be avoided as it affects root health.
In simple words, apple trees need different fertilizer doses based on their age. Young trees need lower amounts, while mature trees require higher doses of nitrogen, phosphorus, potassium, and organic manure. With correct fertilizer application and timely micronutrient sprays, farmers can maintain healthy apple trees and achieve better yields with good fruit quality.