What is the paradoxical effect of VINASSE in terms of low pH (50dS/m)? What is its impact on soil properties and crop growth?
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@ Tesfaye, although the use of vinasse as a waste helps replenish soil nutrients and improves the quality of the sugarcane crop, it is known that vinasse residues alter the diversity of bacteria naturally present in the soil. Most plants thrive in slightly acidic soil because that pH affords them good access to all nutrients. The darker side of soil pH is plant poisoning. A pH level that is too low also liberates aluminum—not a plant nutrient—in amounts that can stunt root growth and interfere with a plant's uptake of nutrients. In general, higher EC hinders nutrient uptake by increasing the osmotic pressure of the nutrient solution, wastes nutrients, and the increases discharged of nutrients into the environment, resulting in environmental pollution.
@Tarafdar thanks a lot for the response. I got a clue on the impact of this effluent on soil biological property and nutritional disorder if used beyond the optimum limit. However, due to its dual character which on one side exhibits acidic nature and on another way shows basic/saline nature, on which soil (acidic and basic) can we recommend it to use. The other point I want raise here is, which nature of the effluent (acidic or basic) persist for a longer time? Anybody who has got experience and ascertained can share his best practice. Thank you!