Compaction of soil

Real Direct Seeding

Traditional seeding method

 

 

Traditional monoculture tends to compact the soil too much. Ploughing and tilling aim at loosening the soil, but repeated tilling passes, seeding pass and rolling recompact the soil. Gradually under the ploughed layer is formed an impermeable to water plough sole, which slows down infiltration and prevents capillary rise of water to the cultivation layer. The plants suffer from abundant rain and dry seasons.

As VM Real Direct Seeding involves only one seeding pass, compaction of the soil is reduced. In addition, the soil remains covered by stubble and straw. Therefore, its load-bearing capacity is much better than the load-bearing capacity of ploughed soil. The weight of the seeding drill is distributed between the tractor, the coulters, the depth adjustment wheels and the low-pressure rear tyres. Thus the ground pressure caused by the drill remains low. The soil will remain loose even after seeding.

In traditional farming, which involves ploughing, the amount of humus and carbon in the soil profile is decreased. The reason for this is that the unprotected humus and carbon near the soil surface burn to carbon dioxide with the contribution of the oxygen in the air. As the amount of organic matter is decreased, the density of aggregate structure of the soil is increased resulting in the increased tendency for compaction. While the Real Direct Seeding method is applied, the stubble protects the humus and carbon in the soil against contact with oxygen in the air.

In Real Direct Seeding, the amount of organic matter in the topsoil and the amount of humus are increased. The activity of micro-organisms and the microbes converts the aggregate structure of the field more granular. As a result the load-bearing capacity of the field is increased and compaction of the field is decreased. After the transition period the aggregate structure becomes softer and more porous compared with ploughed soil.