Silver woodruff herbicide use time:
Sowing 10 to 15 days after the emergence of seedlings. When the seedlings are 3～4cm high, carry out the 1st weeding and loosening, and inter-seedling at the same time; when the seedlings are 7～8cm high, carry out the 2nd weeding and loosening and plowing, and planting, with a spacing of 10～20cm; when the seedlings are 10～12cm high, carry out the 3rd weeding and loosening and plowing.
Silver Chaihu herbicide use:
1, pre-seedling soil treatment: the use of medicinal field special series of herbicides in the pre-seedling herbicide for soil hong closed treatment. The method is in the herbs after sowing, weeds before the emergence of seedlings with medicine field special herbicide 100ml to 30 kg of water, with a sprayer evenly sprayed on the soil layer. Pay attention to the soil moisture when the effect is better, preferably after the rain spraying. It can effectively control annual grass weeds and some dicotyledonous weeds in 2-3 months.
2, post-seedling stem and leaf spraying: mainly for pre-seedling herbicides can not control weeds, to be used in the field of post-seedling herbicides to kill. The method is: in the weed 3-5 leaf period, the herb seedlings 3-5 needle leaves (height 10cm) above with the drug field after the seedling special herbicide 20-100ml (specific measurement should be subject to the use of instructions) to 30 kg of water, for stem and leaf spraying to kill. Because the weeds come out of a crop after each rain, therefore, the drug field post-seedling deleterious to go through 3-5 times before.
Silver Chaparral use precautions:
First of all, to master the period of use. Herbicides are generally effective on small grass, want to kill big grass accordingly requires a large amount of medicine, which is easy to produce drug damage to the herb, resulting in the inability to use herbicides. Generally in the broadleaf grass before the five-leaf period to use the best effect, grass grass a little bigger does not matter.
Secondly, growers are most concerned about whether the use of herbicide will produce drug damage, this can not be generalized. Different herb resistance is not the same, some herb resistance is good, do not produce drug damage, some herb resistance is poor, a lack of attention, it is easy to produce drug damage.
Third, don't expect too much from herbicides. Since it can not hurt the herbs, it is impossible that all weeds can be removed. Since herb herbicides are selective, there will certainly be grasses that can not be eliminated. For example, perennial broadleaf grasses. This is why some people who use the same medicine say it works exceptionally well and others say it doesn't. The effectiveness is directly related to the grass in the ground. If the grass species is right in the herbicide's weed control range and is not too big, the effect is certainly good. The main grass species in the ground is perennial broadleaf grass, the use of the effect is certainly not good.