Page "Soil conditioner" Paragraph 11

While adding a soil conditioner to crops or a garden can seem like a great way to get healthier plants, over-application of some amendments can cause ecological problems.

For instance, salts, nitrogen, metals and other nutrients that are present in many soil amendments are not productive when added in excess, and can actually be detrimental to plant health.

Runoff of excess nutrients into waterways can also occur, which is harmful for the environment.