Is it harmful to the vegetable seedlings that come out after one day of herbicide spraying?

Herbicide. There is no direct harm to vegetables, but the herbicide residue will directly threaten the soil, and the soil is the key to the absorption of nutrients by the vegetable roots.

Foliar fertilizer to alleviate the damage.

Rapeseed requires a large amount of fertilizer, and increasing fertilizer is an important way to obtain high and stable yield.

First of all, combined with land preparation, sufficient basal fertilizer is applied, and high-quality soil miscellaneous manure is applied per mu to make basal fertilizer. Secondly, in order to prevent defertilization in early spring, fertilize before the end of the year, generally use 50-75 kg of manure per mu, and combine cultivating loose soil, hoeing weeds, and cooperate with Ribery Yanwo "microbial agent" to enhance the photosynthesis of stems and leaves.

function, laying the foundation for fast hair after rejuvenation. The application of moss fertilizer must be based on the growth of field oilseed rape. For fields with hypertrophied leaves, vigorous growth and dark green leaves, apply less or no moss fertilizer as appropriate;

Heavy moss fertilizer should be applied early to the fields with thin seedlings, and urea should be applied per mu.

About 10 kg. In the later stage, the leaf color of rape flowering stage turned significantly lighter, and horn fertilizer was applied once at the flowering stage. Generally, about 10 kg of urea per mu is used, and topdressing outside the root is carried out in time (mainly boron spraying) to prevent flowers from being fruitful, as well as the phenomenon of premature aging. European rape.

It is more sensitive to boron, and the lack of boron element is easy to cause flowers but not fruit, and the yield will be reduced by 20-30% under normal circumstances, and when the boron deficiency is serious, it will even be lost.

Generally speaking, there is no harm, because herbicides mainly target grass varieties to kill them. It has nothing to do with vegetable seedlings.

Glyphosate is a widely used inactivated herbicide, commonly known as green death. Of course, spraying vegetable seedlings will die, and the residual period of glyphosate is relatively long, which is easy to cause soil compaction. It cannot be used for weeding in edible vegetables.

can die, and those who kill grass don't recognize what grass is grass and what is vegetables, and they all kill them.

Summary. Hello! Herbicides can be closed before and after planting, mainly referring to crops before sowing (or before transplanting), or before crop sowing, soil spray treatment to close and kill unseeded weeds, corn field such herbicides include acetochlor amide, metolachlor, atrazine triazine, etc., can prevent a variety of annual grasses and some small-seeded broad-leaved weeds in the field.

The main ingredients of pre-emergence herbicides are "acetochlor and atrazine (atrazine)", and there are also alachlor, butachlor, metalachlor and other ingredients compounded with atrazine products.

Advantages: The soil is closed, and there is basically no pesticide harm to corn.

Disadvantages: It is greatly affected by the climate, especially in the case of drought, which often affects the weeding effect. In particular, the machine-harvested wheat stubble is too high, the straw coverage rate is high, and the amount of medicinal solution is insufficient for farmers, which directly affects the effect.

2. Corn post-emergence herbicides.

The herbicide spraying time after corn seedlings is the 2 5 leaf stage of maize, and the maize resistance is high at this time, and it is not easy to appear pesticide damage. 5 leaves before the whole field spray, 6 leaves after spraying, to lower the nozzle, around the corn stalks, to prevent the liquid irrigation caused by pesticide damage.

Due to drought and low temperature in the spring maize field in the north, the maize grows slowly, and the weeds emerge unevenly, and when the weeds emerge from the seedlings, the maize has exceeded the 5-leaf stage. Yes.

Whether the herbicide is applied before or after planting.

Hello! Herbicides can be closed before and after planting, mainly referring to crops before sowing (or before transplanting), or before crop sowing, soil spray treatment to close and kill unseeded weeds, corn field such herbicides include acetochlor amide, metolachlor, atrazine triazine, etc., can prevent a variety of annual grasses and some small-seeded broad-leaved weeds in the field. The main ingredients of pre-emergence herbicides are "acetochlor and atrazine (atrazine)", and there are also lead punch products with alachlor, butachlor, metalachlor and other ingredients.

Advantages: The soil is closed, and there is basically no pesticide harm to corn. Cons:

It is greatly affected by the climate, especially in the case of drought, which often affects the effect of weeding. In particular, the machine-harvested wheat stubble is too high, the straw coverage rate is high, and the amount of medicinal solution is insufficient for farmers, which directly affects the effect. Second, corn post-emergence herbicide corn post-emergence herbicide spraying time is corn 2 5 leaf stage, at this time corn resistance is high, it is not easy to judge the poor pesticide damage.

5 leaves can be sprayed in the whole field, 6 leaves after spraying, to lower the nozzle, around the corn acacia Qing spray, to prevent the liquid medicine irrigation caused by pesticide damage. Due to drought and low temperature in the spring maize field in the north, the maize grows slowly, and the weeds emerge unevenly, and when the weeds emerge from the seedlings, the maize has exceeded the 5-leaf stage. Yes.

The effect of the second application is not good, and the use of nicosulfuron is easy to produce drug damage; Applying pesticides too early or too late is easy to cause pesticide damage. If there is no pesticide application or the soil sealing effect is not good during this period, you can choose bright residue and choose to use post-seedling herbicides to spray the stems and leaves of the weeds that have emerged from the seedling hall to quietly prevent them, and the control effect is OK.

Summary. Hello, glad to answer for you.

Hello, glad to answer for you.

Hello, herbicides have no direct harm to vegetables, but the herbicide residue will directly threaten the soil, and the soil is the key to the vegetable root system to absorb the nutrients, the soil is not good, the vegetable root system is not good to cover, the ability to absorb nutrients is reduced cherry disturbance, then the vegetable is naturally not good, you can use the herbicide after the use of amino acid foliar fertilizer, to alleviate the pesticide damage.