Relationship Between Plant Fertilization and Coffee Quality Attributes

Relationship Between Plant Fertilization and Coffee Quality Attributes

Coffee trees are tolerate a wide range of soils. For example It provided that  deep  and well balanced for their texture. Volcanic soils are  well suited for coffee.

Agricultural practices should preserve the soil fertility, which is the wealth of coffee growers.  If possible increase the organic matter in the soil to promote the microbial life and the exchange capacity.

Whenever a soil is destroy it, It is observed that the coffee quality is affected therefore by contrast coffee trees. It will be healthier on a soil rich in active organic matter. They will have a better leaf area-to-fruit ratio leading to a better quality.

Soil is the main reservoir of mineral nutrients for plants. Roots grow and absorb water and nutrients according to the physical, chemical, and biological properties of the soil .

For most regions worldwide where coffee is cultivated. the nutritional reservoirs in soil are not sufficient to completely cover the coffee plants’ demand.  it is necessary to continue ousel supply the soil in a balanced way with sufficient amounts of organic and inorganic fertilizers.

Fertilization and Coffee Quality

fertilization does influence this chemical effect and due to the final coffee quality in the cup. Among the macronutrients, those containing nitrogen and potassium are the most predominant in the bean, usually followed by calcium, magnesium, phosphorus, and sulfur. The effect of iron and manganese make it to be higher than zinc.

Soil fertility

Possible effect on cup quality , Most acidic coffee are produced on  volcanic soils.


Reduction in percentage of hollowed fruits , Chemical fertilization does not affect  cup quality, Breaking down fertilization applications does not affect cup quality , Fertilization does not affect cup quality

Nitrogen fertilization

Fertilization with nitrocalcium and ammonium nitrate produced lower sensory quality. The higher dosage of ammonium sulfate had negative effects on chemical composition and bean quality , Nitrogen fertilization increased bean N content and affected negatively cup quality

Phosphorus fertilization

Cup quality was negatively affected by the omission of phosphor in the fertilization.

Potassium fertilization

High potassium-K dosage reduced boron and Zinc in the bean. Excessive dosage of that reduced quality in inconsistent manner. , Excess of potassium can induce Mg deficiencies and negatively affect coffee quality , Bean quality improved with dosage.

Micronutrients fertilization

Zinc supply positively affected bean quality in terms of less percentage of medium and small size beans. Lower CBB infestation, lower potassium leaching and electric conductivity.

Higher contents of zinc and Chlorogenic , higher antioxidant activities , Cup quality is not affected by using two sources of Micronutrients .

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Saeed Abdinasab
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Saeed Abdinasab

Saeed Abdinasab

Coffee Instructor (AST) & (Q)


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