A green manure crop or cover crop has a positive effect on the structure of the soil, which benefits soil compaction and the yield of cash crops. This is specifically important in narrow rotations with a lot of root- and bulb crops. Moreover the yield will also be increased due to the Nitrogen which will be set free after the incorporation of the cover crop. Green manure crops should mainly be grown after an early harvested cash crop.
The use of noxious nematode controlling varieties white mustard (Sinapis alba) or oil seed radish (Raphanus sativus) reduces crop loss due to soilborne pests and the use of chemical products can be reduced.
With the correct use of specific varieties, nematode control can be equal to that of black fallow or chemical soil disinfection products.
Beet cyst nematode (BCN)
Beet cyst nematodes can cause huge losses in cultures of sugar beet, oil seed rape, cabbage, red beet and spinach. By the use of BCN- resistant cover crops the damage of the following cash crop can be significantly reduced.
To recognize these BCN-resistant varieties quickly, we have developed a special BCN-logo. If this logo is on the bags of our products it contains a variety which has the highest resistance level for nematode control, namely BCN 1.
This category shows the highest possible potential in nematode reduction. The next category is BCN 2, followed by categories that show non-resistant varieties.
The varieties which are marked as multi-resistant are not only resistant to beet cyst nematode, but are also resistant to root knot nematode Meloidogyne chitwoodi and fallax.