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    Home > Biochemistry News > Plant Extracts News > White flowers and grey leaves

    White flowers and grey leaves

    • Last Update: 2020-11-10
    • Source: Internet
    • Author: User
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    a species of bean grey leaf genus, the name Tephrosia candida DC. Also known as short gray leaves, bee bee beans, gray leaf beans. perennion of small shrubs. Native to tropical Asia. It is found in tropical and subtropical regions. Guangdong Province is mainly used as a young rubber plantation, citrus orchard green fertilizer cover crops and young coffee garden shade trees. Yunnan, Guangxi, Fujian and other places have also been cultivated.plant is 1-3m tall, with prismatic branches, dense brown or grey fluff. Odd plumes of complex leaves; The total flower sequence is 15-20cm long and the crown is about 2cm long. The fruit is 7-10cm long, about 8mm wide, dense brown flat paste silk hair, with seeds 10-15. About 50,000 seeds per kg.adaptable, acid-resistant, barren, drought-tolerant, Xiyang, slightly frost-resistant, suitable for hilly red soil slope planting. Before planting, soak in warm water at 50-60 degrees C for half an hour, dry and sow, from March to April. For green manure, lean plant line distance of 50×60cm, fertilizer 60×100cm, land retention 100×100 or 130×130cm, planting capacity of 4-7 kg per hectare. After 4-5 months, the plant height of 100-120cm can be cut, left about 50cm, that year can be cut 1-2 times, the second three years can be cut 2-3 times, the use of 3-4 years. Annual production of green manure 15-30t per hectare.leaves containing nitrogen 0.475-0.815%, phosphorus 0.094-0.148%, potassium 0.474-0.656%. Leaves contain the toxic ingredient Rotenone, which is generally not suitable for writers and animal feed. Seeds produced per hectare are 375-750 kg.
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