Uniform distribution of chaff and chopped residue is important within conventional farming systems, but it’s critical in no-till rotations. Streaked residue leads to many problems: 1) Nutrients contained within the unevenly distributed previous crop residue are also streaked on the soil surface. This commonly results in uneven emergence of future crops. 2) Soil under the bands of heavy residue are slower to warm up in the spring (compared to areas with less residue). These cooler soils frequently result in delayed emergence of crops, together with reduced availability of nutrients as a result of the cool temperatures (so these strips get hurt twice!) 3) Heavy residue bands commonly cause hair-pinning with disc seeders or plugging of shank style seeders. These problems are commonly compounded because the soil beneath the residue has a higher moisture content, further hindering the performance of seeding equipment. 4) Heavy residue bands commonly lift seeding equipment out of the ground if they are not adequately ballasted, plus they reduce the seed to soil contact standards of drills, air-seeders and planters. 5) Areas without any previous crop residue may be more prone to soil erosion. - Translation possibly to other languages - Übersetzung möglicherweise zu anderen Sprachen - Tradução possivelmente para outros idiomas - Traducción posiblemente a otros idiomas - https://translate.google/
Posted on: Sun, 14 Sep 2014 14:15:48 +0000
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