The quality of groundwater in most parts of Lower Saxony leaves much to be desired. This, among other things, guilty and overuse of fertilizers. Against this state of Affairs has strongly made by the Minister of agriculture, Christian Meier (Christian Meyer), according to the European office of international public ecological organization "Green Front".

Due to the high content of nitrates in the groundwater of Lower Saxony Minister wants to tighten the rules on use of fertilizers throughout the country. The second time Mayer shall report on the amount of manure deposited on fields in this Federal land. In addition, he commented on the current measures in contrast to the existing situation, as well as their demands for improved control under the new Federal Directive on the use of fertilizers.

According to the Union for the protection of the environment (Bund), the amount of manure on the fields in Lower Saxony, after the first report of the Minister rose from 47 to 47.6 million tons per year. "We need urgently to do something with industry animal welfare and the serious impact it has had on the nature and all of the world", said the representative of environmental organizations. Transportation of manure in the agricultural regions where its use as a fertilizer is needed, there can be no final solution to this problem. "When making approximately 100 thousand heavy flights, and it is so much need for transportation, it is very difficult to control the fact that the manure will be actually delivered in 100% of cases for other purposes, and will not appear on any field in the next turn".