HOW SHOULD THE SAMPLE BE SHIPPED TO THE LABORATORY?
The manure sample should be sent to the laboratory as soon as it is taken to avoid loss of nitrogen gas. If you are unable to take it to the lab that day, freeze it until you are able to send to the lab. Do not use a glass container as it can break during freezing or transport. Plastic ice cream containers or freezer bags work very well. Duct tape the lid and label with your farm name and the type of manure. Some mistakes that can occur when sampling manure are: • Taking the sample from behind the animal. This is too fresh and will give false high nitrogen reading. • Taking a sample and leaving it in the farm building or truck for a few days. As the manure heats up, the nitrogen gas escapes therefore the test will show a false low reading. • Samples were combined from several different manure storages. They need to be separate as they can be quite varied in their nutrient levels. • The manure pit was emptied and whatever is left in the corners is scraped together for a sample. This wil
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