A special kind of name is given to grow some crps like sugar cake , groundnut ,tomato and fodder crops and they are used from there sewage waste for growing some crops . What is that ?which substance in the sewage help the plant to grow?
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these all crps grow in black soil and have a specific role to play .,....... as your question depicts these crops are used from the remaning sewage waste for growing other crops and enrich the soil from there nutrients.
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