Narrow-leaved lupine

It is better to place lupine after cereals. On light and sandy soils, lupine gives large yields after potatoes and corn.

It is not recommended to grow it after sugar beet and other legumes. Lupins can be returned to the same field no earlier than after 7-8 years. This prevents lupine from being affected by diseases (fusarium) and damage by pests.

Lupines for green manure and also for green fodder are grown mainly in the steam field before winter cereals. Post-harvest and post-harvest green manure crops are placed after winter barley, wheat, and rye. If fodder and sideral alkaloid lupine are grown on the farm, then fodder lupine should be sown in fields where there was no alkaloid, because the latter has seeds with a hard shell, which can sprout after 2-3 years.

Sowing depth. It has been established that lupines produce friendly and full seedlings on sandy soils when the seeds are buried to a depth of 3-4 cm, and on heavy ones - 2-3 cm. During germination, lupine seeds bring the cotyledons to the surface of the soil. Therefore, with deep wrapping, plants do not sprout or give late and weakened sprouts. A seed wrapped shallowly and left on the surface of the soil also does not germinate.

If lupine is grown for green manure or fodder, the sowing rate is increased by 20-25%.

Sowing terms. The best time to sow lupine is the end of the first five days from the beginning of sowing early spring crops. In years with early spring, this interval is increased to 10-12 days, and in late spring, they are sown simultaneously with early cereals. Early sowing of lupine should not be turned into tilling, when the soil is not yet ripe, and its temperature is lower than +5°С. Such crops are thinned out, overgrown with weeds and the yield decreases.