Technologies and principles of effective pre-sowing tillage for winter crops

In steppe regions, pre-sowing tillage serves one primary goal: to conserve soil moisture for seed germination and the autumn development of winter crops. Proper preparation creates a leveled field, a loose fine-cloddy layer, and a compacted seedbed at the sowing depth. This not only conserves water but also facilitates the passage of seeders and combine harvesters. All operations must be carried out immediately before sowing.

Technology and implements are selected based on the specific condition of the field:

• The field is infested with weeds, and the seedbed is compacted. Carry out cultivation to the sowing depth. Use harrows and drags for leveling. To avoid soil drying, work with flat-cutting cultivator sweeps — they minimize soil inversion.
• The field contains only annual weeds (no perennials). It is most effective to use harrow-cultivators with drags. Instead of factory-made implements, farmers often use homemade ones: segments from decommissioned headers are welded to the teeth of heavy spike-tooth harrows. They loosen the soil finely, without inverting the layer, conserving moisture at the sowing depth, and due to their wide working width, they operate faster than conventional cultivators. This method is suitable only for well-tilled, non-cloddy areas.
• The field is free of weeds, and the top layer is fine-cloddy and loose. During a dry autumn, cultivation can be replaced by conventional harrowing or omitted entirely.

When and where pre-sowing rolling is necessary

If, by the time of sowing, the field remains cloddy and uneven, and its moisture content has dropped below the level of capillary rupture, the field must be rolled. This practice is also mandatory in cases of late primary tillagetillage and delays in sowing. The roller eliminates excessive looseness, which could otherwise cause the settling soil to tear plant roots or push the tillering node to the surface during winter, leading to the death of winter crops.

• What problems arise when preparing soil for winter cereal crops?
• What is the primary objective of the tillage system when preparing it for winter crops?
• What are the optimal soil moisture conditions for the germination of winter wheat seeds?
• What effect does the structural composition of the seedbed have on the emergence of uniform seedlings?
• How can the cloddiness of the soil be reduced during tillage for winter crops?
• What are the main ways to increase the wetting of the soil profile for winter crop plantings by spring in regions where it cannot be guaranteed?
• What are the conditions for ensuring optimal conditions for the development of processes for the accumulation of nutrients accessible to plants?
• What is the role of tillage in clearing the field of weeds and their seeds?
• What are the features of tillage after cereal predecessors for winter crops?
• What are the main ways to reduce cloddiness when tilling stubble?
• What negative effects are created in the arable layer after late-harvested row-crop predecessors?
• Why is it not recommended to perform ploughing after row-crop predecessors?
• What are the features of tillage after harvesting corn for silage and sugar beet, and what are the differences?
• What is the essence of soil-protecting mulching tillage of ordinary chernozems after row-crop predecessors?
• What kind of tillage after grain legumes is better to carry out in the northern and central zones on ordinary, leached, typical chernozems, and chestnut soils?
• What are the features of tillage after perennial grasses and occupied fallows?
• Pre-sowing tillage, what are its features and timing after various predecessors?