Minimum Tillage Systems and environmenmtal aspects
Conventional tillage - Land-Impulse
Conventional tillage - Land-Impulse
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Conclusion<br />
•Mulch –<strong>and</strong> direct –seeding systems are fully developed <strong>and</strong><br />
go well in practice.<br />
•The economical benefits must not ignore the nutrient –<br />
pesticide <strong>and</strong> soil movement (erosion).<br />
•Cereal – maize crop rotation needs a shallow mulch of crop<br />
residuals for a fast decomposition as a phytosanitary need<br />
(Fusarium Mycotoxines)<br />
•After harvest the growth of volunteer cereals has to be<br />
interrupted, they st<strong>and</strong> for a green bridge for plant diseases<br />
like barley yellow dwarf virus or Fusarium sp. <strong>and</strong> pests like<br />
aphids as a vector for the virus.<br />
•An immediately seeding of cover crops after harvest for a<br />
good development of the green manure.<br />
•Reduction of soil erosion is a requirement <strong>and</strong> possible<br />
•Reduction of CO 2 – emission is significant<br />
•Increase of microbial biomass<br />
•Increase of organic Carbon in the soil<br />
•A reduction of the costs is possible <strong>and</strong> necessary.<br />
•A prescription is not possible <strong>and</strong> depends from the crop<br />
rotation <strong>and</strong> natural situation.
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