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How to use herbicides in vegetable fields safely? Master these key application points
Weeds in vegetable fields are a major problem in vegetable production. Hand weeding is both labor-intensive and backbreaking, so the vast number of vegetable growers need to use herbicides in vegetable production. However, vegetables come in many varieties, have short growing periods, high multiple-cropping indexes, and complex crop rotations, and there are also many types of herbicides. If used improperly, they can easily cause herbicide damage, or even total crop loss...
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What are the key precautions for using herbicides in vegetable fields
In vegetable production, hoeing and weeding often accounts for more than 40% of the total labor used in vegetable field management. If chemical weeding is used, it can not only effectively control weeds and improve the quality and yield of vegetables, but also save a large amount of weeding labor and reduce labor intensity, but the following "eight precautions" must be observed....
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What herbicide works well in napa cabbage fields?
Currently, the herbicides registered in China for napa cabbage include 33% pendimethalin emulsifiable concentrate (100-150 ml per mu), applied as a soil treatment after sowing but before emergence, or before transplanting the cabbage; it can control some grasses and broadleaf weeds. If using pendimethalin over a large area, it is advisable to test on a small area first. For soil treatment...
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How to Cleverly Use Non-Selective Herbicides in Summer Sesame Fields
When watermelons are cultivated in greenhouses, small arched sheds and with plastic film mulch, the temperature and humidity conditions inside the protected area are suitable for weed growth, and manual weeding is inconvenient, resulting in vigorous weed growth and severe damage. Few herbicide products are registered for use in watermelon fields in China, and many farmers misuse herbicides in watermelon fields, leading to poor weed control results...
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What are the precautions for using post-emergence herbicides in corn fields?
I. 2,4-D butyl ester. (1) Causes of phytotoxicity. Applying the herbicide too late, at too high a dose, or unevenly can cause phytotoxicity. (2) Symptoms of phytotoxicity. When the herbicide is applied to the soil, the young shoots bend and the young roots grow upward, then later return to normal. When the herbicide is applied to stems and leaves, the stems become twisted, the leaves become narrower, ...
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Five precautions for using regulators in cotton fields
1. Pay attention to the scope of application. Cotton fields suitable for plant growth regulators must have good water and fertilizer conditions, and the cotton must show a tendency to excessive growth or already be growing excessively. They must not be used in cotton fields where the climate is dry and irrigation is not possible, where growth is weak, or where growth is inhibited by pests and diseases. 2. Pay attention to the application period. Mepiquat chloride generally...
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What are the precautions for using herbicides in wheat fields?
What should be noted when using herbicides in wheat fields? How should it be done? Applying herbicides to wheat requires the following strict practices: Strictly select herbicide varieties. There are many types of herbicides, and each herbicide has a certain spectrum of weed control. Some herbicides have a very narrow weed control spectrum, such as barban, which can only control wild oats; MCPA controls shepherd's purse, purslane, and wild oats very well, but its effect on cleavers is very poor; 2,4-D is effective against broadleaf weeds such as amaranth, but ineffective against grass weeds. Farmers should choose the right herbicide according to the most common weed species in the wheat field in order to achieve the desired effect. To control broadleaf weeds, herbicides such as chucaojing, dicaojing, tribenuron-methyl, and baijia mixture can be selected for good control results; however, metsulfuron-methyl, chlorsulfuron, and maicaoer can only be used early in wheat fields under a rice-wheat rotation system. If crops such as cotton, corn, peanuts, or beans are planted after rice, serious phytotoxicity will occur, leading to frequent incidents of almost total crop failure.
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Which herbicides work well in corn fields?
Which herbicide is best for corn? And how should it be applied? Summers are rainy, and weeds are widespread in corn fields. The main weeds include crabgrass, barnyardgrass, green foxtail, goosegrass, redroot pigweed, purslane, copperleaf, and purple nutsedge. Corn is most severely harmed by weeds at the seedling stage, so chemical weed control should...
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What are the commonly used herbicides in soybean fields?
What herbicides can be used for growing soybeans? How to use them without causing phytotoxicity. Fomesafen (fluoroglycofen-ethyl) is a herbicide for controlling broadleaf weeds with a relatively broad weed-killing spectrum. After application, contact phytotoxic spots will appear on soybean leaves; this is normal and has no obvious effect on soybean growth, and newly grown leaves will show no phytotoxicity. Value...
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What are the methods for applying herbicides in watermelon fields?
How are herbicides applied to watermelon? What should be noted? To reduce and prevent mistakes in applying chemical herbicides to watermelon, the following issues should be noted in application technique. 1. Correctly select the herbicide. There are many herbicide varieties available for watermelon production, the most commonly used being 48% trifluralin emulsifiable concentrate, 25%...
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