Can you apply herbicides to watermelon patches? What herbicide is good to apply after watermelon see

Herbicides can be used in watermelon fields, and herbicides that can be used in watermelon fields are in addition to the herbicide varieties such as dichlor, metolachlor, sec-butyl, quinoxalin, flupyrimethoxalin, etc., other herbicides such as amide butachlor, diphenyl ether ethoxyfluoroxafen, dinitroaniline pendimethalin, cyclic imine oxamine, triazine prometrine, carbamate grass, phenoxy pyridoxalin, etc. Among them, butachlor has become the choice of weeding in most watermelon fields due to its relatively wide herbicidal spectrum, high performance and low use cost.

First, the selection of herbicide varieties.

After sowing watermelon and before emergence, herbicides such as 25% amine phosphos emulsifiable concentrate, 80% herbicidal net wettable powder, and 50% Dahuili wettable powder can be used. 2 to 3 days before transplanting watermelon seedlings, herbicides such as 48% fluoralin EC, 48% dilometin EC, and 50% Dole EC can be used. Before weeds emerge after watermelon transplanting, herbicides such as 48% fluoralin EC and 33% herbicide EC can be used.

During the growth period of watermelon, herbicides such as 35% stable emulsifiable concentrate, 20% napujing emulsifiable concentrate, gacaineng emulsifiable concentrate, and 10% grass gram emulsifiable concentrate can be used.

2. Strictly control the dosage of application.

25% amine phosphos EC is used, and 200 ml can be applied per 667 square meters (1 mu); 80% herbicidal net wettable powder is used, and 100 150 grams can be applied per 667 square meters; 50% Dahuili wettable powder is used, and 150 200 grams can be applied per 667 square meters; 48% fluoralin EC can be applied to 100 150 ml per 667 square meters; 48% dilomide EC can be applied 150 200 ml per 667 square meters; 50% Dole EC is used, 50 ml can be applied per 667 square meters; 33% herbicide EC can be applied to 100 150 ml per 667 square meters; Using 35% stable emulsifiable concentrate, 70 80 ml can be applied per 667 square meters; 20% Napjan EC, 100 150ml per 667 square metres; Using the emulsifiable concentrate of Gaicao, 65 ml can be applied per 667 square meters; Using 10% grass gram emulsifiable concentrate, 120 150 ml per 667 square meters can be applied. The above herbicides are sprayed with 40 50 kg of water per 667 square meters.

Watermelon is a genus of watermelon in the pumpkin family of Cucurbitaceae, which has nothing to do with gramineae, and there is no harm to watermelon by playing herbicides against gramineae.

After watermelon seedlings, 48% fluorinal emulsifiable concentrate, 33% weeding emulsifiable concentrate, etc., and 35% emulsifiable concentrate can be used to stabilize the emulsifiable concentrate, 20% Napnet EC, Cover Grass EC or 10% Grass Gram EC spray weeding the soil.

Watermelon field management technology: in the watermelon and the whole growth process needs to be watered about five times, the first time is after sowing, the second time is after the melon seedlings break through the soil, the third time is when the seedlings are fertilized, that is, when the melon seedlings grow to forty or fifty centimeters long, and the fourth is the flowering period.

This watering is very important, it is related to the success rate of the fruit, so the watermelon will be watered through, the last time is when the watermelon grows to the size of a palm, this watering must be watered enough, to ensure that its water can ** to the watermelon ripe, at the same time the last water can not be too much, the watermelon needs to accumulate sugar, if the water is too much, the ripe watermelon will not be sweet.

Watermelon management techniques.

Watermelon needs to be fertilized at least four times from planting to maturity, an average of two thousand catties of farmhouse fertilizer is needed as base fertilizer per mu, and secondly, if it is in the countryside, top dressing can be used in the manure of livestock is human manure and urine water, such fertilizer is the best absorption of watermelon, but if it is greenhouse planting or soilless cultivation and so on, it needs to use an appropriate amount of chemical fertilizer.

For example, nitrogen fertilizer is not more than 10 catties each time, potassium fertilizer is not more than 100 catties, phosphate fertilizer is not more than 50 catties and compound fertilizer is not more than 45 catties.

Gram (paraquat) and glyphosate are both biocidal herbicides. The former is the destruction of chlorophyll, which leads to the death of the green organs of weeds or plants. The latter is caused by weeds or other plants absorbing active substances through stems and leaves, and then transporting them to the root system, inhibiting the synthesis of root proteins and causing the root system to die, and eventually causing the aboveground organs to wither.

In addition, after the above two herbicides come into contact with the soil, they will be passivated by the metal ions in the soil and become ineffective. Therefore, neither of the above herbicides can be mixed with pre-emergence or pre-emergence herbicides.

For the selection of herbicides, one is to look at the proportion of weeding objects, such as the proportion of gramineous weeds and broad-leaved weeds, if grasses are the majority, then choose herbicides with higher activity to grasses. Second, it is necessary to choose the herbicide according to the safety of the crop. It is recommended to choose 72 metolachlor (Dur), which is effective for both grasses and broadleaf weeds.

Poaceous weeds are mainly poisoned through bud sheaths, while broad-leaved weeds are mainly poisoned through young grasses and young roots. The use method is generally soil spray before seedlings after sowing, when the soil organic matter content is below 3, the concentration is about 300 times the solution, and when the organic matter content is above 3, it is about 250 times the concentration of the solution.

2 to 3 days before transplanting watermelon seedlings, 48% fluoralin EC, 48% dilometin EC, 50% Dool EC, etc. can be used. After watermelon transplanting, before weeds emerge, 48% fluoralin EC and 33% herbicide EC can be used. During the growth period of watermelon, 35% emulsifiable concentrate, 20% napsunet emulsifiable concentrate, 12 5% caocan emulsifiable concentrate, 10% grass gram emulsifiable concentrate, etc.

I used the melon and melon of Korean agriculture last year, but the watermelon needs to grow to 20 cm before it can be used, and the effect is not bad, and the fragrant aconite can also be removed.

Watermelon field herbicide.

In addition to the herbicide varieties such as dichlor, metolachlor, sec-butyl, quinoxalin, and high-efficiency flupyrimethoxalin, other herbicides such as amide butachlor, diphenyl ether ethoxyflufen, dinitroaniline pendimethalin, cyclic imine oxamine, triazine prometrine, carbamate grass, phenoxy pyrofluxafen, etc., are all available for weeding in watermelon fields. Among them, butachlor has become the first choice for weeding in most watermelon fields due to its relatively wide herbicidal spectrum, high safety and low cost.

Use herbicides registered on watermelons and follow the instructions for use. At the same time, it is necessary to select appropriate agents according to different cultivation methods and weed species. Weeding in watermelon field is mainly soil closure treatment, and pesticides are generally applied before seedlings or transplanting after sowing. After seedlings, it is advisable to use drugs to control gramineous weeds, such as quinoxalin, high-efficiency flupyrethoxalin, etc.

In areas with more rain or poorly drained fields, drugs such as metolachlor are recommended to be used in low amounts. Due to the high temperature of the watermelon field in the greenhouse and small arched shed, the liquid medicine is easy to volatilize, so it is necessary to lift the film in time and ventilate in time to avoid the pesticide damage caused by the high temperature in the shed, and the dosage should be used on the premise of ensuring safety. Mulch watermelon is generally limited to spraying the cover film part, rather than applying the whole field.

Summary. Hello dear, you can use quinoxalin, promethonyl, dichlor and other herbicides Quoxalin (1) to control weeds: annual grass weeds.

2) Use: After the emergence of watermelon and melon or after planting, the stems and leaves of gramineous weeds at the 3-5 leaf stage are treated, and the effective amount per mu is used, and the amount of different content preparations is used. The effect of herbicide application in watermelon field is related to the ecological environment, such as the application of herbicides in sandy loam soil is faster than that of clay, but compared with cohesive soil after application, the concentration of pesticides in sandy loam soil is too large to produce pesticide damage, so it is necessary to accurately grasp the dosage of pesticides according to soil.

When the temperature rises above 20, the herbicidal effect is better, when the temperature is not high in spring, the dose should be increased appropriately, and the dose should be reduced as appropriate when the temperature is high in summer.

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Hello dear, you can use quinoxalin, promethonyl, dichlor and other herbicides Quoxalin (1) to control weeds: annual grass weeds. (2) Use:

After the emergence of watermelon and melon or after planting, the stems and leaves of gramineous weeds at the 3-5 leaf stage are treated, and the effective amount of grams per mu is used, and the amount of different content preparations is used. The effect of herbicide application in watermelon field is related to the ecological environment, such as the application of herbicides in sandy loam soil is faster than that of clay, but compared with cohesive soil after application, the concentration of pesticides in sandy loam soil is too large to produce pesticide damage, so it is necessary to accurately grasp the dosage of pesticides according to soil. When the temperature rises above 20, the herbicidal effect is better, when the temperature is not high in spring, the dose should be increased appropriately, and the dose should be reduced as appropriate when the temperature is high in summer.

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Dear I am happy to answer your questions for the annihilation of the blind hole, the following is the answer for your query; Can watermelon herbicides be used in melon fields: It is not recommended to use watermelon herbicides in melon fields. While watermelon herbicides can be effective in controlling weeds, it can also have a negative impact on watermelon plants.

Watermelon plants are sensitive to chemicals, and the use of watermelon herbicides may cause problems such as slow growth, yellowing of leaves, and loss of fruit quality. In addition, the use of chemicals may also cause pollution to the environment and pose potential risks to human health. Therefore, it is recommended to use physical or biological methods to control weeds, such as manual weeding, mulching weeds, and the use of organic fertilizers.

1. Before seedlings emerge after sowing, use 200-300g of 50% dichlor preparation, or 150-200g of 50% promethoxin preparation diluted and sprayed with water per mu. 2. Before transplanting, use 75-125ml of 48% fluorolein, or 50-80ml of 72% dol emulsifiable concentrate, or 200ml of 48% dilenamine mixed with water 40-50kg dilution spray per mu.

1. What medicine is used for herbicides in watermelon fields

1. Before watermelon sowing, or before seedlings emerge after sowing, use 200-300g of 50% dichlor preparation diluted and sprayed with water per mu, or use 150-200g of 50% promethoxin preparation diluted and sprayed with water per mu.

2. Before transplanting watermelon seedlings, use 75-125ml of 48% fluoralin, or 50-80ml of 72% Dole emulsifiable concentrate, or 80-130ml of 33% weeding, or 200ml of 48% dilometre, or 65-150ml of mulch, or 75-130ml of 15% stable killing, or 50-60ml of 15% fine and stable killing, or 150-200ml of 48% lasso. Or 65-100ml of 10% gram of grass mixed with water 40-50kg diluted spray.

3. During the growth period of watermelon, when the grass weeds are 2-5 leaves, use 50-60ml of high-efficiency cover grass per mu to dilute the spray with water (to prevent and control the number of annual grasses), if it is a perennial grass weed, the dosage is doubled. Or use 70-130ml of 35% or 15% emulsifiable concentrate diluted with water per mu. Or use 60-80ml of refined grass gram emulsifiable concentrate diluted spray with water per mu (annual grass weeds), if it is a perennial grass weed, use refined grass gram emulsifiable concentrate per mu.

2. Precautions for the use of herbicides in watermelon fields

1. After spraying, some herbicides need to be lightly raked to mix the pesticides into the soil, and then sowing or transplanting. For example, dichlor and fluleline need to be lightly raked after spraying, and the agent is mixed into a 3-5cm topsoil layer.

2. The control of weeds in watermelon fields is mainly based on soil closure treatment, and drugs are generally applied after sowing and before seedlings emerge or before transplanting. After emergence, drugs to control grasses and weeds are selected.

3. When spraying drugs, it is necessary to adjust the concentration of the liquid medicine according to the soil, among which the cohesive soil is safer after application, while the sandy loam soil is easy to produce pesticide damage after application, and the concentration of the liquid medicine needs to be appropriately reduced.

4. When spraying drugs, it is advisable to have a temperature above 20 °C. If the temperature is low, the dosage needs to be increased appropriately; If the temperature is high, the dosage needs to be reduced appropriately.