while containing the process. hydrophilic water accepting or wetting. hydrophobic a membrane or other material which repels and cannot be wetted by aqueous and other high surface tension fluids. when pre-wetted with low surface tension fluid, such as alcohol, the filter will then wet with water. hydrometer...
, phos- phorus and potash. nutrient variability can be a problem when trying to determine the use of manure and slurry as a fertiliser resource, and every effort should be made to assess the nutrient content prior to application. this can be done using on-farm assessment tools, such as a slurry hydrometer...