Field-specific guidelines and full documentation relating to slurry application is becoming part of modern farming. So too is the recognition that slurry is nutrient rich but also that its nutrient value can vary. To optimise its value the slurry needs to be spread to provide a uniform distribution of the nutrients available to crops. This is not easy as the nutrient content of slurry is typically taken from a number of samples which can only provide a broad outline of the material’s overall values. In practice, nutrient levels can vary widely between tanker load, reducing the reliability of slurry as a fertiliser.
As slurry is not homogenous, even mixed and stirred in storage, an additional degree of difference in nutrient values
