Legumes as Green Fertilizer — Beans and Peas for the Soil
En resumen: Peas, beans and broad beans are not just vegetables — they're living fertilizers that fix atmospheric nitrogen. After harvest, leave the roots in the soil instead of pulling them out.
Legumes — vegetables that fertilize the soil
Bacteria in root nodules take nitrogen from the air and transfer it to the plant. The excess goes into the soil. After harvest, roots with nodules remain — nitrogen for the next plants.
Practical tips:
- After harvesting peas or beans: don't pull out the roots — cut the stem above ground, roots stay in the soil
- Best successors: cabbage, broccoli, lettuce, spinach — leafy plants that eagerly uptake nitrogen
- Broad bean is particularly effective
Green manure from legumes:
Clover, vetch, alfalfa as green manure. Plow under before flowering — nitrogen goes into the soil.How much nitrogen they provide:
Peas can fix 50–100 kg of nitrogen/ha. In home gardens, significant improvement.zielnamanufaktura.pl
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