How are herbicides used in flower nurseries?

The control of weeds in flower nurseries has always been a difficult point. Weed control is mainly manual weeding, tillage, plastic mulching, etc. In fact, the easiest and most effective way to control weeds in an herbaceous nursery is to use herbicides.

If cap grass is used, 40-80 ml of emulsion per mu, 40 kg of water can be added, and sprayed with liquid, which can effectively control a variety of annual grass weeds. If there are many dicotyledon weeds in the nursery, you can also use high-efficiency cocoline emulsion and Guole emulsion, mixed in a ratio of 1 to 1. Targeted foliar treatment can be carried out between seedling rows, which can effectively prevent monocotyledon and dicotyledon weeds, and has no adverse effect on seedling growth.

There are three main ways to control weeds: For the control of broad-leaved weeds, the conventional chemicals are 5% copper sulfate water or 50% zebsen zinc water, and 10% chlorothalonil water can also be used. For weeding with strong disease resistance and low soil requirements, 25% carbofuran water agent can be used, sprayed or soaked.

For low-temperature tolerant plants, it can be used after grass buds germinate, which can play a better preventive role. Conventional chemicals include 5% copper sulfate aqueous or 50% zebsen aqueous aqueous, and 10% chlorothalonil water can also be used.

For plots that do not require or require less herbicides, they can be directly sprinkled without herbicides to avoid affecting the weeding effect. For plots that require a longer period of weed control, the grass cannot be treated with ordinary herbicides, and it is very unfavorable for the development of weed resistance. For the weeding of dense weeds in the grassland, herbicides should be used to remove weeds first, and then dilute or mix herbicides in a certain proportion to avoid affecting the weeding effect.

A control of weeds before germination can reduce the occurrence of weeds.

Choose disease-resistant varieties. The use of herbicides after transplantation and before jointing can obtain disease resistance and high survival rate. At present, many farmers in the middle and high altitudes and mountainous areas have promoted the use of herbicides, such as "Caole" and "paraquat", but in some colder places, the amount of herbicides still needs to be relatively increased.

The herbicidal ether wettable powder that can be used, 400 to 600 grams per mu mixed with sieved dry soil, 40 kg per mu is sprinkled, which can control the weeds of the annual Asteraceae and Poaceae, and the validity period can be up to one month.

It needs to be used reasonably, at this time, it is necessary to spray some herbicides in the flower garden, and it is also necessary to spray evenly by spraying.

Some herbicides should be sprayed according to the growth of flowers, using some large-area spraying tools, so that they can be sprayed more evenly.

The uprooting of weeds in nurseries in agricultural production has always been a problem, most of the current uprooting methods are manual uprooting, because it will be very difficult to use herbicides, because herbicides also have a certain toxicity, and it is easy to have a great impact on the use of drugs in nurseries, but as long as you pay attention to some methods, then herbicides can be said to be the simplest and most effective methods of weeding in nurseries, so how to use herbicides correctly, I think we need to pay attention to the following aspects.

In fact, when weeding in nurseries, different herbicides and pulling methods should be used according to different situations, if any.

For one- and two-year-old seedlings, then take a relatively safe herbicide before the weeds germinate, so that the weeds can be removed without damaging the crops planted, but the dosage used in the preparation of herbicides is very particular, and it must be within a reasonable range, otherwise it will damage the crops planted. If it is during the vigorous growth of weeds, then when using herbicides, they should be treated with stems and leaves, which is the most effective and safest, and in the process of use, foliar treatment should be carried out between the seedling rows, so as to effectively prevent the impact of weeds.

If it is a seedling that is more than two years old, then the requirements for herbicides are not so strict, and the dosage can be slightly increased. You can ask the relevant professionals for dosage ratio when purchasing, and then it can act on the soil surface. If the nursery is planted with some rare and precious flowers, then the use of medicine must be extra cautious, when the weeds grow to about 15 cm, you can use glyphosate to prepare a concentration of the liquid on the weed stems and leaves, so as to avoid the solution touching the seedlings and causing pesticide damage.

When using herbicides, if paraquat is used, then it must be used before the cuttings bud germination, and when the high-efficiency cover grass can be mixed with emulsifiable concentrate and Boer emulsifiable concentrate, it can help prevent monocotyledonous weeds in the nursery, but these ratio concentrations are required to be limited, and the instructions should be carefully observed.

The first correct method is to pay attention to the amount it must be mastered, the second point should be mastered by the whole rough skills and methods, and the third point should be paid attention to not too much of their own hand strength, otherwise there will be a phenomenon that the seedlings will die.

It is used differently for seedlings ready for cuttings or transplants, and for seedlings during the growing season. For seedlings ready for cuttings or transplantation, fluorin, promethonyl, herbicide and other agents should be used; For seedlings in the growth period, poisonous soil can be prepared for weeding.

First of all, it is necessary to choose the right herbicide according to the planting area, and then it is necessary to pay attention to the appropriate concentration and the right time, and then when spraying pesticides, you must do a good job of personal protection and keep a safe distance.

It is necessary to pay attention to safety issues, be sure to choose the right herbicide for use, do not touch **, do not touch the mouth and nose, do a good job of protection, and be sure to pay attention to the appropriate sparrow friendly spraying, and must pay attention to the spraying method.

It is necessary to pay attention to the problem of use, must be used correctly, you can add water in the ratio, but you can not add chemical fertilizer, pay attention to the jujube cavity residue and wear gloves and masks, which is safer, pay attention not to put it on the ground, and be careful that the stool is touched by the child.

Choose the right herbicide, herbicide must choose a herbicide with good effect, and then the herbicide with low toxicity, so that the stool can be safer and will not affect other plants, and there is spraying pesticides in the right weather, if the weather is not suitable, the sprayed pesticides have no effect, so that the grass will become more and more.

The control of weeds in the seedling base has always been a difficult point. At this stage, most of the weed control methods are manual pulling, farming, mulching, etc., in fact, in the herbaceous flower seedling base is a very simple and efficient way is to apply herbicides.

For seedlings above two years old, 100-200 grams of herbicidal ether or 50% promethonym wettable powder can be used, and 40kg of dry fine soil can be mixed with sieve powder to prevent weeds such as spinning flowers, early maturing grass, goldenrod, chrysanthemum, dry barnyard and barnyard grass. For the pruning of large seedlings and fruit trees with high base and secondary planting, 10% glyphosate solution can be used under the trunk to prepare 1 mu of 750ml, or 20% paraquat solution 1 mu of 100-200ml, and 40% atrazine granule 1 mu of 150-250ml, prepare the liquid and spray it on the soil surface.

The medicine can be taken according to the shape of the stem and leaf. There are some broad-leaved plant seedlings such as camellia, subtle smile, magnolia, privet, etc., which can also be solved with glyphosate slotting sprayer; Other broad-leaved plant seedlings such as acacia, bauhinia, hibiscus, etc., can not use glyphosate, but before germination, you can use 24% fruit emulsifiable concentrate 1 mu 10-15ml, mix dry fine soil to make dry medicinal soil topdressing, and then wash the seedlings with cold water to prevent annual single and dicot weeds The effect is very good, and there is no harm to the seedlings. Generally, conifers are more resistant to pesticides than broad-leaved plants.

For money pine, pine and cypress, oriental cypress, etc., you can use 10% glyphosate liquid agent 1 mu 750ml, put water containing Chashi to prepare the liquid immediately carry out the stem and leaf solution, can reasonably kill thatch, spiny vegetables, bitter vegetables and other perennial growth weeds, seedlings are safer.

For the subtle smile, camellia, privet, magnolia, etc., which have leathery leaves and a layer of fruit wax on the surface, and pine and cypress flowers with fragrant lipids on their stems and leaves, because of their strong resistance, glyphosate and other herbicides with weak selectivity are used to spray weed stems and leaves on sunny days without wind entering the temperature. For flowers such as peach, French holly, magnolia and hydrangea with plush leaves, because of their weak resistance, only herbicides with strong selectivity and high safety factor can be used to solve the problem of stems and leaves.

There are some common problems when applying herbicides. The application of 20% paraquat solution must be carried out before the bud germination of the cuttings, and it is forbidden to use it after the bud has germinated. 65% glyphosate soluble granules and 20% paraquat liquid are applied in the seedling base, and small ultra-low volume sprayers are generally not required to prevent fertilizer damage to seedlings due to liquid drift.

The high-efficiency mulberry can be mixed with the emulsifiable concentrate and the emulsifiable concentrate can also be used alternately, which is beneficial for the control of monocotyledonous and dicotyledonous weeds in the seedling base.

First of all, when using herbicides, we must avoid rainy weather, and we should water and fertilize regularly, strengthen water and fertilizer management, choose the right herbicide, and pay attention to the proportion of herbicides, and pay attention to the amount of herbicides.

First of all, we must prescribe the right medicine, and at the same time, we should choose herbicides with good quality and good remorse, the effect of removing herbicides should be understood, and the herbicides should be used on sunny days, and should be avoided in rainy or windy weather.

At this time, it is necessary to choose the right herbicide according to the type of chanting wheel of the plant, and then it is also necessary to choose the right herbicide according to the area of the planting high limb, and then we must pay attention to the appropriate use time, we must avoid the temperature is relatively high or when it rains, we must pay attention to the concentration when using, and we should also choose a variety of herbicides to be used alternately.

<> weeding in seedling land can generally choose two kinds of herbicides and selective herbicides, and the herbicides can be paraquat, glyphosate, glufosinate-ammonium isopropylamine salts, etc., such herbicides are more effective, and can not be sprayed on seedling leaves when used, and can be smeared or sprayed directionally; Selective herbicides can be used to kill grass, high-efficiency grass cover, Weiba, etc., such herbicides are only effective for grasses and weeds.