Let’s pay homage to humus. As the garden gets into full swing, it’s a good time for such tribute, because enthusiasm can be parlayed into action. No one can say exactly what humus (pronounced HUE-mus) ...

The yields of many important crops in Europe have been stagnating since the 1990s. As a result, the input of organic matter into the soil -- the crucial source for humus formation -- is decreasing.