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紫穗槐是一种多年生的豆科植物,也是一种优质高产的绿肥树。种植一年可收割利用十多年,保土能力很强,土地越种越肥,经营管理简便。一般紫穗槐的成林,在5月下旬就可开始收割绿肥,在7～8月间收割含氮量最高,这时收割漚制堆肥,是双季晚稻的良好肥料。近年来,常山地区对发展紫穗槐,采用多点试验,建立试验畈,由点到面地大面积种植,已取得良好的成绩。
Amorpha fruticosa is a perennial legumes, but also a high-yield green manure tree. Planting a year can be harvested with more than 10 years, a strong ability to soil, the more land more fertilizer, management is simple. General Amorpha fruticosa forest, in late May can begin harvesting green manures, harvest in July and August the highest nitrogen content, then harvest compost system compost, is a good fertilizer for double season late rice. In recent years, Changshan area has made good achievements in the development of Amorpha fruticosa, using multi-point test, establishing experimental plantation, and planting large area from point to surface.