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在苗圃的管理中,除施肥外,除莠费是最大而又频繁的一项开支。用萌前除莠剂防治苗圃莠草,似乎颇有希望。萌前除莠剂喷在裸土上时,可防止表土层中的大部份莠草种萌发;喷在植物的叶和茎上时,对植物无害。因此,选用一些萌前除莠剂来进行苗圃除莠试验。这些试验中试用的除莠剂如下:西玛嗪(Simazine)50W阿特拉嗪(Atrazine)50W西巴(Ciba)1936西巴 2059也试用了几种新发现的除莠剂,据称,它们除具萌前除莠的作用外,还略有接触作用。它们是:阿特拉通(Atratone)
In nursery management, in addition to fertilization, in addition to the total cost of tuition is one of the largest and frequent expenses. The use of pre-emu herbicide control nursery weeds, seems quite promising. Pre-eruption herbicides spray on bare soil to prevent the top soil from the majority of weed germination; spraying on the leaves and stems of plants, the plant harmless. Therefore, the selection of some pre-germination herbicides herbicides test. The herbicides tested in these tests were as follows: Simazine 50 W Atrazine 50 W Ciba 1936 Ciba 2059 Several newly discovered herbicides were also tested, In addition to the role of germination before addition to herbicides, but also a slight role in contact. They are: Atratone