Printed from www.TFI.org on September 9, 2010

 

About Fertilizer
 

About Fertilizer

How does an apple a day keep the doctor away? Quite simply with nutrients. From vitamins and carbohydrates to proteins, nutrients are packed into every single bite of an apple, which helps to keep humans well nourished and healthy. And how do we ensure the fruits and vegetables grown on farms are healthy? With fertilizer nutrients.

The nutrients that are essential for human growth are also necessary for plant growth. Humans, animals and plants rely on a safe, healthy supply of food and nutrients like nitrogen, phosphorus and potassium for proper growth and development. Plant nutrients are the “food” that plants need to generate the food humans eat.

Fertilizer major crop nutrients are nitrogen, phosphorus and potash – all naturally occurring elements in the environment. Micronutrients are also required in smaller amounts by plants. These elements are critical to the growth, development and health of plants and influence food quality and health attributes that are important for human nutrition.

Read more: N, P, K * Sulfur, Micronutrients and Bag Analysis

What's a nutrient?

Essential for Growth
 
Main Nutrients
 
Drawn from Nature


The function and contribution of each plant nutrient is very specific and one nutrient cannot substitute for another. The absence of any one nutrient in the soil can limit plant growth, even when all other nutrients are present in adequate amounts. If the deficient element is supplied, growth will be increased up to the point where the supply of that element is no longer the limiting factor. Increasing the supply beyond this point is not helpful, as some other element would then be in minimum supply and becomes the limiting factor.

 


Plants require 14 essential mineral elements for healthy growth.

An element is described as being essential to the plant if the following conditions are met:

  • The element must be required by the plant to complete its lifecycle.
  • The element cannot be replaced by another element.
  • The element must be required by specific biological function.
  • The element must be required by a substantial number of different plant species.
 
All plant nutrients come from natural sources, either from the air we breathe or from ancient sea beds in geological deposits. Fertilizer companies simply take these natural ingredients and convert them into a form that plants can use. Fertilizer nutrients are the most readily available and predictable source of nutrients for plant growth.

Nourish, Replenish and Grow

Since the beginning of agriculture several thousand years ago, soil fertility has been of vital concern. At first, men sought out areas with fertile soils, which they farmed until its fertility was exhausted and then moved to another area. With the help of fertilizer, farmers can now improve and predict soil health and crop yields.

Farmers are not adding fertilizers to the ground. Rather, they are replacing nutrients that are lost at each harvest and restoring a soil’s balance. Farmers use fertilizers to meet plant nutrient requirements and to replace the nutrients that have been absorbed by plants. Each season, growing crops remove essential nutrients from the soil, depleting its future fertility and yield potential. By fertilizing their land, farmers are simply replenishing the nutrients removed to produce food and maintain the health of their soil.

An insufficient supply of nutrients compromises a plant’s ability to withstand harsh weather, disease and other stresses. Although dry weather played a key role in the “dust bowl” conditions of the 1930s, insufficient levels of nutrients were one of the problems that plagued Depression-era farmers. Today, the United Nations estimates that more than 30 percent of the world’s land is affected by desertification, a condition that fertilizers are used to combat.

Additional Resources

  • Watch a short video about fertilizer’s role in maintaining healthy soils.
  • Watch a short video about how fertilizer affects food quality and quantity.
  • Watch a short video about how commonly used potassium chloride is used in balanced diets.
  • Watch a short video about how fertilizer improves the nutritional quality of the food we eat.

 


The Fertilizer Institute, 820 First Street, N.E., Washington, DC 20002, (p): 202/962-0490, (f):202/962-0577
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