据报道.最近联邦德国—位生物学家从苦楝树叶及其果实中抽提出一种苦楝生长素,能使水稻显著增产。在生产上具体应用时,可将苦楝树叶及果实压碎锤烂,加水浸泡约24小时后,过滤除去残渣,再将滤液煮沸,待冷却后即可利用。经多次重复实 According to reports, a recent German federal biologists from the bitter neem leaves and fruits extracted from a neem auxin, can make a significant yield increase of rice. In the production of specific applications, the neem leaves and fruit crushing hammer bad, add water to soak for about 24 hours, filtered to remove the residue, and then boil the filtrate until the cooling can be used. After many repeated real