Translations:Manfred Klett: Von der Agrartechnologie zur Landbaukunst/758/en

At the flowering of the cereal crop, around mid-June, root formation — and with it soil tilth — reaches its peak. Until then the soil still springs elastically underfoot. After flowering, the first roots begin to die off, and likewise the first leaves, progressively from below upwards. The sun's rays penetrate down to the soil surface, and the further ripening advances, the harder and drier the soil becomes. This is the time in which the root crops

221