Raw materials for green manure is often the weeds, herbs, oval leaves, legumes ... Many of the farmers usually get chopped into small pieces and bring sprinkle each field. In these materials, the green manure legumes have the highest efficiency. Because legumes often symbiotic microorganisms living on plant roots and helps synthesize protein from the air. Thereafter protein can provide a plant part. Beanstalk has the ability to absorb phosphorus and potash.
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