In the late 1970’s, a new concept materialized to serve the international farming community: fertigation. A natural step forward in agricultural technique, fertigation (from the words fertilizer and irrigation) is an effective method of applying chemicals and fertilizers To crops via the existing irrigation system. The need For fertigation derives from the fact that traditional methods of fertilization are only partially effective and leave a lot To be desired. At the time the fertilizer is distributed, it may be too strong For the delicate roots of the young saplings, causing Then irreparable damage. Or on the other hand, it may be too weak, and thus useless. Most important however, is the fact that spread or sprayed fertilizer remains near the surface, hardly reaching the root tips and root hairs – the points of greatest absorption.
In the process of fertigation, fertilizer is applied directly with the irrigation water. Therefore, wherever the water goes, the fertilizer goes with it. Fertilizer is applied only where needed, and in the proper quantities.
The obvious advantages of fertigation, therefore, are the saving of labor and machinery, and the efficient use of the costly chemicals and fertilizers To be applied. In fertigation, the extra activities involved in the separate application of fertilizer are no longer necessary; neither is the purchase of maintenance of dedicated equipment For fertilizer distribution. Additionally, such machinery often compresses the soil and
may cause crop damage. In conclusion, one might say that fertigation is the most effective and least expensive way of proving nutrients To
growing field crops.
Yara has a wide range of fertigation and liquid fertilizers to meet any crop situation. Our full range of essential nutrients can be used in drip irrigation, sprinkler systems or pivot agriculture.
Our fertigation products include high-quality calcium nitrate, potassium nitrate and a full range ofmicronutrient chelates. They’re used in soil and fertigation applications, and can also be used as a source material for foliar products.
Chelates help overcome many problems associated with metallic ion tie-up in the soil by taking a positively charged metallic ion and turning it into a negative form that is less readily rendered unavailable in the soil.
They do so by “sealing” the nutrient in a protective structure that keeps it within the soil solution, effectively preventing nutrient loss.
Yara chelated products – devised by our partner Akzo Nobel – are produced from high-grade metals and suited to specific soil and crop situations.
(Source – http://www.yara.com/products_services/fertilizers/product_portfolio/fertigation/index.aspx , http://www.amiad.com/filters/fertigation_2.asp)