Stone picker

A stone collector ( depending on the design also called Steinschwader ) is an agricultural implement for stoning fields.

Function

Most devices make use of the differences in size between stones and clods advantage. Using seven stones are separated, overloaded with stone collectors into a bunker, similar in Steinschwadern like rakes in a row ( swath ) is stored. Requirement is a possible siebfähiger, weed -free soil. Likewise disturb crop residues such as corn stover use of the devices.

Reasons for the stoning of fields

The Stoning of fields has depending on the initial stocking (quantity and size of the stones in the soil) several advantages:

  • Damage to rotating equipment such as harrows be reduced. In addition, the risk of thrown around stones reduced.
  • An interruption free working is also possible with tillage equipment without rotating parts such as plowing due to lower number of damage. For example, plows common with so-called stone fuses protected by shear bolts against overload and serious damage; However, the pushing back of the deflected portion, removing the remainder of the screw and the mounting of the new shear bolt takes a lot of working time.
  • Cleaning of the crop: In soil growing crops such as potatoes are first harvested along with plenty of soil, soil can be screened, stones would have to be sorted out without consuming previous pitting.
  • Damage caused by stones on the tires of agricultural machinery can be reduced.
  • At high output stocking of the soil with stones arising after the stone collecting a more uniform growth.
  • For root vegetables such as carrots may be intense with stones in the soil at irregular grown and not marketable tubers and beets carry.

Similar technology

In Beetanbau of potatoes and stones Erdkluten are stored in windrows. The potato dams are invested specifically between these swaths. The advantage here is that there are at harvest disturbing Erdkluten only in small amounts in the dams. The method of Beetanbaus is widespread, especially in Scandinavian countries.

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