Do you need to use herbicide when planting potatoes?

Ultra-effective cassava herbicide. Sweet potato herbicide. Potato post-emergence herbicide "Po." Wide. Sha weeds" through the removal.

35g "1+1+1". 15 yuan. 250 pieces. 2 with 1 acre).

One. Features:

After seedlings. All over the field. "Poaceous weeds.

Broadleaf weeds. Cyperaceae weeds" are removed. Only sweet potatoes are not removed.

Potato. While effectively controlling the unearthed weeds. It is also effective in sealing off ununearthed weeds.

Unmatched by any other herbicide.

1.Fragrant aconite against malignant weeds. Tian Xuanhua and so on have special effects. Make sure the roots rot within two weeks. Three years without birth.

2.Excellent control effect on all gramineous weeds. Especially Tsushima Don. Cow tendon grass. Dogtooth root. Dogtail grass. Barnyard grass. Ice grass. False sorghum grass. Self-generated wheat seedlings. Look at Mai Niang and so on.

3.To broad-leaved weeds such as spiny bracts. Trifolium lanceola. Cassia . Pigweed. Xanthella. Thousand grasses. Win red thistle. Euphorbia. Big melon dragon. Chrysanthemum. Amaranth. Amaranth retroflex and other excellent control effect

Two. Application:

Cassava. Sweet potato. Potato seedlings are highly safe. Can be sprayed all over the field. (But focus on directional spraying whenever possible.) ).Does not hurt the potato. Potatoes can be used from the moment they are unearthed to the time of harvestIt is also safe for crops.

Three. Results:

This product is a systemic herbicide. The weeds died completely. But die slowly.

In general: broad-leaved weeds are effective in three days. Died in a week.

Poaceous weeds are effective in a week. Ten days to die. Cyperaceae weeds, such as malignant weeds such as aconite.

Results in 10 days. Twenty days later, it is guaranteed to die of "rotten roots". No more resurrection.

Four. How to use:

This agent must be diluted twice, that is, the powder is poured into a small bowl, a small amount of water is added, and it is completely dissolved. After making the blister-free pharmaceutical mother liquor, pour the mother liquor into the sprayer and add enough water. Do not pour the powder directly into the nebulizer for the secondary dilution method.

It's critical. If the secondary dilution method is not used correctly. There are also blisters in the potions.

It is easy to produce pesticide damage. Every 660 square meters with 25 30 kg of water, the soil should be moist, the spray should be meticulous and thoughtful, so that there is no heavy spraying and no leakage.

5. Precautions:

1) The soil must be moist when using medicine. In the high temperature season, it can be used when the temperature is low during the day; Sprayers that have been sprayed with other pesticides must be washed clean, if the soil is dry. If the temperature exceeds 28 or more, the effect is poor and it is easy to produce drug damage;

2) Please pay attention to ventilation when using the greenhouse, and the greenhouse should be used seven days after removing the film; Otherwise, it is easy to cause drug damage;

3) Sealed, dry and cool place, away from children, food and feed;

Planting potatoes with herbicides is a good choice.

Potato, also known as potato, is in addition to wheat, rice, corn and other staple crops, another staple crop, it is rich in a variety of nutrients, coupled with high yield, many varieties, strong drought resistance, so, in recent years, has been favored by many growers, planting area is increasing every year.

When it comes to crops, we have to mention field management, weeds are one of the unavoidable topics, in the process of planting potatoes, there are many common weeds, such as cow tendon grass, hollow lotus seed grass, amaranth, horsetail, purslane, dogtail grass, spiny cabbage, fragrant aconite, thatch, etc., these weeds, in the field and potatoes for "four" competition: for water, for fertilizer, for sunlight, for space, to the normal growth of potatoes to bring a certain impact, not only to reduce the yield, but also to the quality of the impact.

For these weeds, we must learn to control them comprehensively, and here are a few points:

1. Manual weeding.

It is suitable for growers with few plots, a friend said well, what kind of herbicide is not as good as manual weeding, but also safe, no pesticide damage, this is true, if you have time and energy, manual weeding is a feasible and effective way, if there are many plots, hire labor, it will not be rowed.

2. Chemical weeding.

Chemical weeding is mainly herbicides, divided into bright spots, one is a closed herbicide, the other is a post-emergence herbicide, with a combination of pre-emergence closure + post-emergence weeding, can maximize the weeding effect, if a single use of a one, may not be satisfied.

Potato planting generally does not need to be sprayed, but in order to prevent underground insects, pesticides will be sprinkled during the planting process, and if there are insects on the leaves, they also need to be sprayed, depending on the growth situation.

How to use pesticide technology.

1. The first spraying: the first spraying time in production is often difficult to determine, and it should be sprayed on the basis of the best forecast according to the growth and development stage of the plant and the climatic conditions. Generally, pesticides should be sprayed at the beginning of potato budding, and early maturing susceptible varieties are even earlier.

2. The second spraying: potatoes enter the budding stage, at this time the early blight enters the onset period, continue to apply 750g calcium and magnesium borate fertilizer 180g mancozeb water dispersible granules or 80g suspension per mu to promote plant growth. After the machine enters the ground, it will cause damage to the ditches in the plot, and attention should be paid to the fixed lane when spraying, so as to reduce the damage to other ditches and reduce the spread of germs.

3. The third spraying: the potato enters the flowering period, the plant has been fully opened, and has begun to bear potatoes, and the requirements for fertilizer and water are relatively high. If the weather is dry, continue to use protective fungicides, 1000g calcium and magnesium borate fertilizer and 180g mancozeb water-dispersible granules per mu.

In case of continuous rainy weather, the blight will be prevalent, so the type of agent should be changed, and the agent should be changed to the systemic fungicide frost urea cyanide manganese zinc, and calcium magnesium borate 1000g 180g frost urea cyanide manganese zinc should be used per mu.

4. The fourth spraying: potatoes enter the tubering stage At this time, potatoes have high requirements for water and fertilizer, and late blight has also entered a high incidence period, so change the type of fertilizer and change the type of fertilizer, 50g of 180g of enoylmorpholine manganese zinc per mu. Intensify the prevention and control of late blight.

If there is a pest, it can be used together with an insecticide, and the test is carried out before use to see if there will be a reaction, and if there is precipitation after mixing, the insecticide cannot be mixed.

5. The fifth spraying: during the tuber expansion period, potatoes have the highest requirements for water and fertilizer at this time, and the number of fertilizer use should continue to be increased, and the use of ** late blight frost urea cyanide manganese zinc 200g potassium dihydrogen phosphate is used.

6. The sixth and seventh spraying: early-maturing potatoes enter the maturity period, and late-maturing varieties are still in the tuber expansion period, at this time, you can continue to spray medicine and fertilizer in one place, increase the survival period of plants, and prevent and control potato infection of tubers, the ratio of medicine and fertilizer is: 200g potassium dihydrogen phosphate per mu, 200g manganese zinc frost urea, 180g manganese zinc.

For the last time, 180g of enoylmorpholine manganese zinc was used 200g of potassium dihydrogen phosphate. Promote the aging of tuber peels and improve the storability of tubers.

Potatoes do not need to be pesticide-treated during the planting process, but sometimes insect infestations may occur, and the potato plants need to be treated with pests. In addition, because potatoes have a short growth period and require a large amount of fertilizer, they usually pay attention to top dressing when planting potatoes.

Potato fertilization principle: mainly organic fertilizer, good potato special fertilizer, basal fertilizer, top dressing skillful application.

1. Base fertilizer: the general base fertilizer is mainly organic fertilizer, supplemented by potassium sulfate compound fertilizer for potatoes, and the amount of fertilizer is 2500 3000 kg of organic fertilizer per mu, and about 45 50 kg of special fertilizer for potatoes per mu.

2. Top dressing: Generally, top dressing should be applied skillfully to see how the potatoes grow? Fertilization as appropriate, when the common topdressing is full seedlings, combined with cultivated soil, topdressing organic fertilizer or fast-acting fertilizer, and watering in time after fertilization; The second topdressing is in the budding period, when the potato tuber is expanded, the amount of fertilizer required increases, it is the period when the amount of fertilizer is the largest, and the special fertilizer for potatoes can generally be applied to 5 15 kg per mu, and it is generally not topdressed after sealing the ridge.

3. Seed fertilizer: look at the soil nutrient content, if the nutrients are low, you can apply 15 20 kg of potato fertilizer per mu to make seed fertilizer. Seed fertilizer is generally applied in furrows or holes, and cannot be in direct contact with seed potatoes.

There will be, but it is the kind that rarely remains, because the potatoes grow under the soil, and the vegetable farmers will spray pesticides on the leaves when they are pesticides, and some of them fall to the ground, and after watering, they infiltrate into the soil and are absorbed by the potatoes, but very little, and have no effect on human consumption.

Summary. If a piece of land has already been treated with herbicides, then if you plant the same plant again the next year, you can choose to plant another crop again, because there needs to be an interval between them, otherwise the crop will not grow well.

If a bucket of land has been treated with herbicides, then if the same plant is planted again in the next year, you can choose to plant another crop again, because there is a need for intervals, otherwise the crop will grow poorly.

Sidestep the question. You can grow vegetables the next year after using herbicides, but you may be malnourished if you still grow potatoes.

Is it an effect on the first stubble to plant vegetables in the second year of the potato field after herbicide.

Therefore, it is recommended that you plant a different crop.

Growing vegetables has no effect.

What herbicides didn't have an effect either.

After the application of herbicides, it is generally necessary to sow seeds at an interval of 5-7 days, and the residue of herbicides in the soil also needs to be considered. 1. Micao tobacco: After spraying, potatoes should not be planted in Yuzhaoxiang for 36 months, and onions, melons, eggplant, peppers, cabbage, radishes, and cabbage should not be planted within 40 months.

2. Nicosulfuron: After spraying, the place should not infiltrate eggplant, pepper, cabbage, radish, cabbage, and potatoes within 18 months.

Why don't we grow vegetables in the potato field here in the next year, because if we plant it, it will grow slowly and will be harmful to medicine.

Because there are herbicide residues.

Some vegetables are affected.

For example, cabbage is a typical example.

Cauliflower can't do it.

with remedies. Greenhouse vegetables are mostly broad-leaved vegetables, such as cucumbers, winter melons, pumpkins, etc. of the Cucurbitaceae family, kidney beans of the legume family containing good penetration, bowl beans, soybeans, etc., eggplant and peppers of the Solanaceae family. In the sock spine type of herbicides, the commonly used sulfonylurea herbicides mainly rely on the absorption and conduction of plant roots, stems and leaves to kill weeds, and the pesticide damage to broad-leaved vegetables is quite serious, such as thisulfuron, as long as there is a trace of pesticide contact with vegetables, serious pesticide damage will occur.

Cauliflower species are also affected.

The second year is not better.

Yes, the herbicide will break down in the soil the next year, so the residue will be greatly reduced.

Yes, due to the different planting systems of potatoes in China, the sowing date is inconsistent, and the occurrence law of weeds in the field is also different. For example, the northern open-field potatoes are sown in early March, and the peak of grass emergence is in mid to late March, and the amount of grass produced in this period accounts for 60 of the total number of weeds.

Chemical weeding is mainly herbicides, divided into bright spots, one is a closed herbicide, the other is the old herbicide after the seedling, with the combination of pre-seedling closure + post-emergence weeding, the weeding effect can be maximized, if a single use of a one, may not be satisfied.

First of all, the blocking herbicides, commonly used: pendimethalin, acetochlor, alachlor, dichlor, etc., can be used alone or in combination. Then there are stem and leaf herbicides (that is, post-emergence herbicides), which are divided into broad-leaved grasses, sharp-leaved grasses and sedges.

Broadleaf weed and sedge herbicides available: sulfasulfuron.

About 10 cm after the emergence of potatoes, sulfasulfuron and quinoxalin were used to control them, and the effect was better.

SulfasulfuronIt is an organic substance, and the pure product is a white crystalline solid.

It is a sulfonylurea herbicide, a branched-chain amino acid synthesis inhibitor, and a selective post-budding herbicide. It is used to control annual or perennial grasses and broad-leaved weeds in corn fields.

It is stable in neutral soils and easily degradable in acidic or alkaline soils. The half-life in the soil is solstice. The half-life of water is days (pH=5), days (pH.).3 days (ph=9).

It is used to control annual withered and or perennial grasses and broad-leaved weeds in corn fields, such as thistle, camelina, fragrant aconite, wrinkled leaf sorrel, arabic sorghum, wild oats, hemostatic horse, barnyard grass, multifloral ryegrass, hemp, amaranth, pig damage, poppy, chickweed. It is especially good for annual weeds to be used early after budding, and the recommended dosage is 5 to 15 g of the active ingredient hm. used for weeding corn and potatoes; Best for corn, best for spring corn.

The half-life of sulfosulfuron in corn is only 6 hours, and corn still has no effect when treated with 2 to 4 times the recommended dose. In the corn field, according to the recommended dose of 5 to 15g (per mu to use, there is no adverse effect on the crops, but sweet corn, burst corn, sticky corn and seed fields should not be used.

If sulfasulfuron is mixed with atrazine or thiensulfuron (thisulfuron-methyl), it can not only expand the herbicidal spectrum, but also improve the control effect of broad-leaved weeds such as quinoa and knotweed. 5g of 25% sulfasulfuron plus 120ml of 38% atrazine plus 60ml of surfactant were used per mu, and 30L of water was sprayed. Or spray 5g of 25% sulfonesulfuron plus 75% thiophenesulfuron plus surfactant per mu and spray 30L of water (limited to Northeast China).