The main challenge in this ...

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The main challenge in this regards, is just too kraal in the area. And the usage of animals waste as manure, firstly they need to consider the distance of kraal, agricultural activities and water sources. Each and every country has got policy regarding that, considering that they will able to identify the problem. Other solution it can be, the blending of water from different sources and after treat it through package plant, to reduce nitrate issues.