äestys

Äestys is a Finnish term referring to the process of harrowing. Harrowing is an agricultural operation performed by a farm implement known as a harrow. The primary purpose of harrowing is to break up and level the soil, especially after plowing, and to prepare a seedbed for planting. It can also be used to cover seeds after they have been sown, to remove weeds, or to break up surface crusts of soil.

There are several types of harrows, each with its own specific function. Disc harrows use a series of metal discs to cut and turn the soil. Tine harrows, also known as spring-tooth or spike-tooth harrows, use a set of tines or spikes to agitate and loosen the soil. Chain harrows consist of a series of linked chains that smooth and level the surface. The choice of harrow depends on the type of soil, the intended purpose, and the crop being grown.

In Finnish agriculture, äestys is a common practice during spring and autumn. Spring harrowing is typically done to prepare the land for sowing spring crops. Autumn harrowing may be performed after harvest to incorporate crop residues into the soil, to control weeds, or to prepare fields for winter crops. The depth and intensity of harrowing can be adjusted to achieve the desired soil condition. Proper äestys is crucial for good seed germination and healthy crop development.