Pear Tree Fertilizer Requirements


Pear Tree Fertilization Schedule – How to fertilize Pear Trees

Contemporary farming practices suggest that once a year (on July- August) we should collect at least 100 leaves from our pear trees and send them to laboratory for a detailed nutrient analysis. If we detect that the average leaf has some nutrient deficiencies (some important chemical elements are below acceptable standards), then we can intervene and correct the nutrient problems by adding the proper element, for instance a calcium amendment.

The normal levels of the most important nutrient are listed below:

N: 2,3% - 2,7%

P: 0,14% - 0,4%

K: 1,2% - 2,2%

Ca: 1,5% - 2%

Mg: 0,25% - 0,5%

Nitrogen and Potassium are very important for leaf growth, flowering and fruit set, while Phosphorus is crucial for the development of a strong root system especially at the early stages of plant development. Calcium, Magnesium, Manganese, Zinc and Boron are also important for various stages of bud development, flowering and fruition and any deficiency will have a negative effect in fruit number, quality and general tree health.

As a rule of thumb, mature fruit bearing pear trees need much more fertilization than young trees that have not entered their fruition period. Professional pear farmers often start fertilizing trees when they become 2 years old. A common fertilization scheme used by numerous pear farmers is adding 180 lbs. (82 kg) of N, 140 lbs. (63 kg) of P2O5, 110 lbs. (50 kg) of MgO and 400 lbs. (182 kg) of K2O per hectare (1 hectare = 10.000 m2 = 2,47 acres), assuming that there are 600-800 trees per hectare and no cover crops. These quantities are normally spread in 3-4 different application sessions during the year. Boron, Zinc and Calcium foliar fertilizers are added according to leaf analysis. Foliar feeding programs are applied from spring until harvest, but the critical period is 5-7 weeks after flowering. Alternatively, many farmers add once a year 2-3 lbs. (0,9 – 1,4 kg) of 12-12-17+2MgO per young tree and 7 to 12 lbs. (3 – 5,4 kg) of 12-12-17+2MgO per mature pear tree.

However, these are just common patterns that should not be followed without making your own research. Every field is different and has different needs. Checking the soil nutrients and pH is vital before applying any fertilization method. Moreover, if a full coverage irrigation system is combined with the presence of clover or other cover crop in a dense planting system, the need for fertilizing pear trees is remarkably reduced, because the cover crop normally produces organic matter that is decomposed, releasing important nutrients to the soil.

You can enrich this article by leaving a comment or photo of your pear farm fertilization method.

Pear Tree Facts

How to grow a Pear Tree from seed

Growing Pear Trees in containers

Starting a Pear Farm

Pear Tree Climate Conditions

Pear Tree Soil Requirements and Preparation

Pear Tree Propagation and Pollination

How to plant Pear Trees

Pear Tree Water Requirements

Pear Tree Fertilizer Requirements

Pear Tree Pruning

Pear Tree Harvest and Yields

Pear Tree Pests and Diseases

Q&As Pear Tree

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