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三七定植后,一般需经过三年栽培管理,才能收获其根部供药用。现将三七栽培的几项主要管理技术叙述如下。一、除草、培土三七是一种浅根植物,根部多分布在表土层15厘米处,不宜中耕,以免伤根部。每年3月以后,发现畦面生长有杂草便及时用手拔除,防止杂草与三七植株争夺养分,并减少病虫害的传播媒介。在除草的同时,发现三七根部露出,要随手培土。二、追肥三七是一种喜肥植物,除定植时施足
Notoginseng colonization, the general need to go through three years of cultivation and management, in order to harvest its roots for medicinal purposes. Now Panax cultivated several major management techniques are described below. First, weeding, earth cultivation Panax is a kind of shallow root plants, the root is more than 15 cm in the topsoil, not cultivated, so as not to hurt the roots. After March of each year, it is discovered that the growth of weeds in the noodles can be removed by hand in time to prevent the weeds from competing for nutrients with the Panax notoginseng plant and reducing the transmission media of pests and diseases. At the same time weeding, we found Panax root exposed, to readily earth. Second, top dressing Panax is a hi fertilizer plants, except when planting enough