Coated Fertilizers and Their Role in Enhancing Nutrient Use Efficiency
Rupa Kumpatla*
Dept. of Soil Science, G.B. Pant University of Agriculture & Technology, Pantnagar, Uttarakhand (263 145), India
S.P. Pachauri
Dept. of Soil Science, G.B. Pant University of Agriculture & Technology, Pantnagar, Uttarakhand (263 145), India
Kanika Kapkoti
Dept. of Soil Science, G.B. Pant University of Agriculture & Technology, Pantnagar, Uttarakhand (263 145), India
DOI: NIL
Keywords: Controlled fertilizers, Degraded polymers, Nutrient use efficiency, Slow released fertilizers
Abstract
The rising world population has intensified the reliance on fertilizers to enhance the crop yields and ensure food security. However, the reduced nutrient efficiency (NUE) of various fertilizers and their associated ecological concerns have highlighted the scope of controlled/ slow-release fertilizers (C/SRFs). These specialised fertilizers are formulated to align nutrient release with plant demand, using diverse technologies such as physical coatings, chemical modifications and compound formulations. Coated fertilizers in particular, have garnered attention due to their ease of synthesis, manufacturing and production. Important factors of these fertilizers are rate and mechanism of release, modelling approaches, to reduce/ minimize the nutrient losses, enhance the fertilizer use efficiency and improve the soil health. Advancements in research like sulphur and zinc coated urea, have proven their potential to improve soil health, maintain ecological balance through sustainable crop production and to decrease the ecological damage caused by the chemicals.
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Reference
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