The by-product should be used if possible.

Volcanoes can bring more than just eruptions.

Baikal may be saved and disaster avoided.

Spring sowing is approaching inexorably.

Research results will help to get rid of waste.

The development of deposits of valuable raw materials has stood idle for 20 years.

There is better use to manure than just lying anywhere.

Sludge will no longer be stored.

The fields require lots of nutrients.

The deficiency of a valuable element can be eliminated.

The sale is forbidden without registration of products.

Consumers are waiting for sapropel.

The raw material lies underfoot.

The bacteria Azotobacter chroococcum will work for the good of agriculture.

Green mass can be used for business.