Bitter lupine is used due to the symbiosis with nodule bacteria and the associated ability to bind nitrogen from the air and enrich the soil and for the improvement of poor soils.
It does not have any special requirements on the soil, which is also loosened due to the deep root system. Bitter lupines are particularly interesting for heavy, compacted soils. Due to its quick development at an early stage it suppresses weeds and is freeze-killed due to its lack of winter hardness.
Seed quantity: 120-160 kg/ha
Sowing time: late summer
Seed depth: 30-50 mm
Row distance: 12 - 15 cm
Fertiliser: According to soil inspection tests