The emphasis of his work was on the use of potash as an artificial fertilizer.

In 1970 European farmers as a whole consumed about 17 billion tonnes of artificial fertilizer.

At the same time, the range of artificial fertilizers was being improved.

Farmers receive grants which allow them to farm the land by traditional methods, without using artificial fertilizers.

Strawberries suffered lower quality due to disease and the use of artificial fertilizers.

And are you in favour of, for example, using artificial fertilizers on to grow crops?

The result is a more fragile ecosystem with an increased dependency on pesticides and artificial fertilizers.

Without artificial fertilizers there would not be enough food to sustain a population of seven billion people.

Controversy has also surrounded the long-term effects of artificial fertilizer on the soil structure.

Modern hay production often relies on artificial fertilizer and herbicides.