Many common algae’s are controlled easily with algaecides, but resistant algae are those that are extremely difficult to control because they have protective mucilage which are completely covering the chloroplast, that resists penetration from chemicals.
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For high crop yields adequate plant nutrition is very important. It is relatively easy to accomplish the needed fertility levels for the major and secondary nutrients. However, for the micronutrients, this can be a little more difficult. Although plants need only minute amounts of these trace elements, they play very significant roles in the growth and production of the plants. Because of unfavorable soil conditions such as pH, organic matter content and aeration, the availability of micronutrients to the roots is reduced. Application of trace elements to the soil to increase its fertility level is not as easy as the applications for the major or secondary nutrients. Increasingly, chelates have been used to overcome the unfavorable soil conditions and supply micronutrients to plants.
The term Chelate is a chemical name derived from the Greek word “chele” – meaning claw. The function of a chelate is to protect trace elements from becoming unavailable to plants.
Trace elements are essential nutrient and their relative deficiency or excess can potentially influence optimum development to a considerable extent.  |