Flowers can be planted in the soil that has been sprayed with pesticides, and how long can the soil

Yes, but it should be dried for a period of time before use, so that the pesticide volatilizes and loses its efficacy, and it can be used by wetting it with water before use.

Summary. 3.If it is a selective herbicide, it is generally only necessary to ensure that the herbicide does not cause harm to the planted crop, and it can be planted on the same day, otherwise it can only be planted until the end of the residual period of the drug.

4.In the case of a herbicide (non-selective herbicide), it needs to be adjusted according to the main component of the herbicide. If it is not systemic, it can be planted after a few hours to a few days, and if it is systemic, it is best to wait more than 2 weeks before planting.

How long can the soil with pesticides be planted?

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1.After spraying the herbicide, plant vegetables at an interval of about 3-5 days, and if it rains during the delay period, it can be shortened to about 2 days, and the specific time is determined by the type of herbicide. 2.

If it is a soil-closed herbicide, it is not suitable to plant seed vegetables, otherwise it will cause pesticide damage to the newly unearthed vegetables.

3.If the herbicide is a selective herbicide, it is generally only necessary to ensure that the herbicide will not cause harm to the planted crops, and it can be planted on the same day, otherwise it can only be planted until the end of the residual period of the effect. 4.

In the case of biocidal herbicides (non-selective aluminomicides), they need to be adjusted according to the main components of the herbicide. If it is not systemic, it can be planted in a few hours to a few days, and if it is systemic, it is best to wait more than 2 weeks before planting.

Summary. Hello! It generally takes about 15 days after herbicide to plant flowers.

Hello! It generally takes about 15 days after herbicide to plant flowers.

Sowing seeds right away will cause the seeds to fail to germinate and grow. In addition, the herbicide has individuation, and its ingredients contain glyphosate pants, and the effect time is relatively long, generally about 20 days, so when using this kind of herbicide, it is necessary to avoid the effective period of staring at the mu before sowing.

Herbicide refers to a type of substance that can cause the rotten oak grass to die completely or selectively, also known as herbicides, to eliminate or inhibit the growth of plants. Among them, chloric acid sodium, borax, arsenate and trichloroacetic acid have a dead effect on any kind of plants, and their effects are affected by three factors: herbicides, plants and environmental conditions.

1. No, it is generally not recommended to use pesticides to water flowers.

2. There are many varieties of flowers cultivated at home, such as open plants and potted flowers, so the types of insect pests that occur are also different. Common main insect pests include aphids, scale insects, whiteflies, snails, red spiders and other pests. To deal with these pests, it is easy to pollute the environment, cause harm to the human body, it is best to catch it manually, you can also use some homemade insecticides, pick up the pesticide method of watering or spraying, the effect is also better, but be cautious about the use of medicine.

It can be used appropriately, it is recommended to add some jujube finch other substances in the soil or turn the soil many times to mix, so as not to affect the flowers due to excessive phosphorus fertilizer content.

How to breed flowers.

1. Cultivation soil.

Most of the flowers grow in acidic or neutral soil, when cultivating flowers, you need to use peat soil, garden soil, vermiculite mixed to make a cultivation substrate, and then apply rotten cake fertilizer to the soil as a base fertilizer, containing rock filial piety and to replace the potting soil every 1-2 years.

2. Scientific watering.

Flowers need sufficient water in the growth process, when breeding flowers, you need to water once a week, you can use non-polluting spring water, well water, rainwater, or tap water to dry for 1-2 days before use, and spray water mist around the flowers to improve air humidity.

3. Apply thin fertilizer frequently.

Flowers are fertilizer-loving plants, when breeding flowers, it is necessary to apply nitrogen, phosphorus and potassium compound fertilizer, well-rotted organic fertilizer or superphosphate once a month during the plant growth period to promote its flower bud differentiation, and after the flowers bloom, it is necessary to spray trium potassium dihydrogen phosphate.

4. Prune branches and leaves.

When cultivating flowers, it is necessary to cut off all the dead yellow branches, diseased branches and insect pest branches of the plant with poor growth, so as not to lose excess nutrients and promote its germination and strong new branches.

Can be planted, phosphorus and potassium fertilizer is one of the main fertilizers for planting flowers, which can help flowers to strengthen roots, flowering, and fruiting. If seedlings need to grow, nitrogen fertilizer can be topdressed.

This soil can not be used completely, but can be mixed with mountain soil to avoid excessive phosphoric acid.

Hello! It is not recommended to use soil with rotten herbicidesIt is not conducive to the growth of flowers, so it is recommended to choose soft and breathable, fertile and loose soil rich in organic matter when planting flowers.

1. Garden soil. Garden soil is generally in the vegetable garden, usually used to grow vegetables, fruits, melons and vegetables of the soil, there is a certain fertility, the biggest disadvantage is that it is easy to compact, the air permeability and water permeability are very poor, it is easy to cause water accumulation in the pot, it is definitely not recommended to use it directly to raise flowers, it can be mixed with loose soil, and it can also be used in the pot to activate the soil and improve the role of compaction.

2. Peatland.

Peat soil generally exists in wet and cold low-lying areas, is the product of the process of swamp decay, rich in organic matter, light texture, soft and good soil permeability, strong water and fertilizer retention, suitable for moist flowers.

3. Sandy soil. Sandy soil is a combination of a large amount of river sand and a small amount of clay, mainly distributed in the Yellow River Basin, the soil quality of this soil is relatively loose, water permeability and air permeability is good, but the water and fertilizer retention ability is poor, only suitable for cacti plants with low requirements for water and fertility.

4. Nutrient soil.

Nutrient soil is a kind of soil that is suitable for family growth, with the characteristics of loose and breathable, water and fertilizer retention, and the general purpose of the soil (suitable for 80% of flowers) is composed of vermicompost + perlite + coconut pran, and the configuration ratio is generally 3:2:5.

You can apply pesticides, and you need to pay attention to the following points:

To plant rice, it is necessary to distinguish the flowering habits of rice, and generally most of the early and middle rice flowering is from 8 am to 1 pm (9 am to 11 pm for the peak flowering period). Bloom between 9 a.m. and 2 p.m. (10 a.m. to 12 a.m.)

When flowering, the two-petaled glume shell opens and the filaments elongate rapidly, protruding the anthers out of the glume shell. If the pesticide is applied at this time, the pesticide will enter the flower apparatus, killing and killing pollen, anthers, ovary, etc. The liquid medicine will also wash the pollen off, seriously affect the pollination, cause the untruthfulness rate to increase, and the glume shell will turn brown, often causing a reduction in yield.

Therefore, it is important to avoid applying the pesticide at the time of flowering. It can be carried out after three o'clock in the afternoon when the flowers have bloomed, pollinated, and the shell has been closed, and the action should be light and swift, and try to avoid hurting the rice ears and breaking the rice neck.

After the rice is pollinated after flowering, the pesticide applied to the rice plant penetrates into the plant tissue, and it is easy to be transported into the rice, and it is close to the harvest period. Therefore, when applying pesticides during flowering, it is necessary to pay more attention to the selection of high-efficiency, low-toxicity and low-residue pesticides. In order to prevent the pesticide residues on rice and straw from exceeding the standard, harming the health of humans and animals.

At the flowering stage of rice, the freshly extracted rice ear tissue is young and tender, and the resistance to pesticides is weak. Therefore, when applying pesticides, it is necessary to grasp the concentration and dosage of the liquid medicine more than usual to prevent pesticide damage. In case of dry air, the water consumption of the pharmaceutical liquid should be increased, which is conducive to preventing pesticide damage.

Comrade Cao Zeli: Hello! The answer to your question is as follows:

The age of rice leaf roller borer is generally more than 3 instar in the field leaf roller damage, for these older rice leaf rollers, with avermectin, Ruijinte, Anda and avermectin and flubelluron, the compound agent such as Shunqing and other control effects are better, the amount of medicine should be applied when spraying, add enough water, and the water consumption per mu should reach about 50 kg, especially the insect bract leaves should be sprayed wet and sprayed thoroughly to improve the effect of insect control and leaf protection. These medicines can be used during the heading and flowering period of rice. However, when spraying pesticides during the flowering period of rice, the flowering period of rice should be avoided.

Generally speaking, on sunny days, rice flowers bloom after 9 a.m. and harvest before 2 p.m.

When is the right time to spray rice? Actually, this season is important and worth seeing!