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茎叶处理法是指将除草剂直接喷洒或抹到杂草茎叶上的方法

网址:www.dzyangguang.com.cn  2021-08-07  作者:admin    阅读:

茎叶处理法是指将除草剂直接喷洒或抹到杂草茎叶上的方法。按施药时期又可分为播种前茎叶处理和苗后茎叶处理。
Stem and leaf treatment is a method of spraying or applying herbicides directly to weed stems and leaves. According to the time of pesticide application, it can be divided into stem and leaf treatment before seeding and stem and leaf treatment after seedling.
(I)播种前茎叶处理
(I) treatment of stem and leaf before sowing
这种方法是在苗圃尚未播种或苗木移植前,用药剂喷洒到已长出的杂草上。要求使用具有广诣性而选择性差、无残留的除草剂。常用的除草剂有百草枯、草甘脚、果尔等。这种施药方法仅能消灭已长出的杂草,对以后的杂草则难以控制。
This method is sprayed on the weeds that have been sprayed before the nursery has been seeded or seeded. It is required to use widely herbicidal, selective and non residue herbicides. Commonly used herbicides are paraquat, grass, foot and fruit. This method of spraying can only wipe out weeds that have grown out, and is difficult to control later weeds.
(2)苗后茎叶处理
(2) treatment of stem and leaf after seedling
苗后茎叶处理是指树木种子萌发出土后施用除草剂的方法。施用时若不采用保护措施,不论杂草和苗木都能接触到药浓。因此,出苗后采用茎叶处理时必须对苗木采取保护措施,如遮盖苗木且喷药后立即用水冲洗苗木等,以防止对苗木造成伤害。对于宽行条播的苗木可采用灭生性除草剂,抗性较强的杂草还可采用灭生性除草刑,用毛笔沾药徐抹单株,进行肪除。
The treatment of stem and leaf after seedling is the method of applying herbicides after germination of trees. No protective measures should be taken, regardless of weeds and seedlings. Therefore, the seedlings must be protected when they are treated with stem and leaf, such as covering the seedlings and rinsing the seedlings with water immediately after spraying, in order to prevent the damage to the seedlings. For the seedlings of wide line sowing, the inactivated herbicide can be used, and the weeds with strong resistance can also be used to eliminate the grass.
2.土缀处理法
2. soil fix treatment
土壤处理法是指采用喷雾、泼浇、撒毒土等方法将除草剂施人土壤t形成一定厚度的药层.接触杂草种子、幼芽,被杂草各部分(如芽鞘)吸收而起杀草作用。土壤处理法一嵌用于防除以种子萌发的杂草或某些多年生杂草,最好在树木种子播种后出苗前处理。此时土壤
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The soil treatment method refers to the use of spray, splash, and sprinkled soil to apply the herbicide t to a certain thickness of the soil to form a certain thickness of the drug layer. The soil treatment method is used to control weeds or perennial weeds that germinate seeds. It is best to deal with the seeds before seeding. At this time, the soil moisture content is good, and the germination of mixed leather is beneficial to the efficacy.

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