Ingredients: 25% Atrazine Nitrosulfonate
Specification: 100ml X 100 bags
200ml X40 bottle
1000mlX 12 bottles
Features: ① After 3 days of application, weeds are effective and dead grass does not rebound at all.
② Safe for sweet corn and waxy corn, and safe for subsequent crops.
③ It has outstanding control effect on annual gramineous weeds and broadleaf weeds.
Using technology:
① Choose a sunny day without wind, before 9: 00 am or after 4: 00 pm.
② The secondary dilution method was adopted. First use a small bucket, add water to the bucket, then add the medicine to the bucket and stir it evenly, and dilute it for the first time. Add half of the water into the sprayer, add the diluted pesticide, stir well, and then fill the sprayer with water for the second dilution.
③ One bucket of water per bag (100ml) is convenient to use.
Are vegetables afraid of herbicides after corn seedling? Yes! Because corn is genetically modified and resistant to herbicides, corn is not afraid of herbicides (vegetables are also genetically modified, but vegetables are resistant to Pieris rapae! ), but vegetables grown near corn are different. When spraying herbicides, if there is wind, herbicides can float near vegetables and kill them. However, if you plant corn in the first year and vegetables in the second year, it will not affect the growth of vegetables!
Can you spray herbicides before and after corn seedlings? The herbicide sprayed before did not grow, but after it grew, it could not be sprayed, which would kill the corn seedlings. If there is herbicide after the seedling grows, it is better to wait for it to grow, otherwise it will still be affected a little.
What herbicide should be used after waxy corn seedlings? You can use BASF's product "Wei Bao".
This product has a bag of herbicide oxadiazon, a bottle of additives and a bag of atrazine. Mix the three samples and pour them into the medicine barrel, which is exactly the amount of a small sprayer (15kg water). The cost per mu is about 25 yuan.
In addition, there is another product called Geng Jie, which is a product of Syngenta, but it is selective. Waxy corn and popcorn fields can't be used, and the cost per mu is 20 yuan.
What should I do if corn seedlings turn yellow after spraying herbicides? It is possible that the herbicide has a good effect, which leads to the yellowing of corn leaves. This is a normal phenomenon, don't worry.
There are many kinds of herbicides that can be used before corn seedling, such as butachlor, alachlor and acetochlor, which can be used in both soybean and corn, but most herbicides in corn field and soybean field cannot be mixed, otherwise it will cause phytotoxicity to one crop, so we must be careful.
What herbicide is used after corn seedlings come out? The main components are nicosulfuron, mesotrione, oxadiazon and oxadiazon (domestic patented products), as well as these four kinds of mixed atrazine products and ternary compound products (all products are sold by manufacturers, but the main weeding effects are nicosulfuron, mesotrione, oxadiazon and oxadiazon). Several products have their own advantages.
Product performance characteristics are the dominant factors.
Nicosulfuron has outstanding advantages: first, high activity and low dosage; Second, the internal absorption is strong, and the dead grass does not rebound at all; Thirdly, it has a special effect on gramineous weeds, especially on catastrophic spontaneous wheat seedlings of summer corn after wheat stubble, and also has a good control effect on refractory cattail. In addition, nicosulfuron has the advantages of strong miscibility, can be compounded with various chemicals, and generally has no residual pesticide damage to subsequent crops. Disadvantages: the speed of dead grass is slow; The application scope is limited, so sticky corn, sweet corn, popcorn and seed corn cannot be used, and a few field corn varieties should be used with caution; The application technology is strict.
Mesotrione has outstanding advantages: first, it takes effect quickly; Second, high security; Third, the weeding spectrum is wide, and it has control effect on common weeds in corn fields. In addition, it also has the advantages of strong miscibility, mixing with many chemicals, short half-life and safety to subsequent crops. Disadvantages: the effect on gramineous weeds is worse than that on broad-leaved weeds, especially for intractable cattail and green bristlegrass, sometimes the leaves die after taking the medicine and often turn green after rain; The cost per mu is higher than that of nicosulfuron; Can not be mixed with organophosphorus, mechanical spraying is the same as nicosulfuron.
The outstanding advantages of benazolin are as follows: firstly, it has high safety, can be used for all corn varieties in the field, such as sticky corn, sweet corn and popcorn, and has no sensitive restricted varieties, and can also be used for some inbred lines in seed production fields; Second, high activity and low dose; Third, the speed of dead grass is fast and the spectrum of killing grass is wide.
After the emergence of corn, the herbicide corn heart rot or bacterial stem rot or corn top rot has a bad smell. It is found that streptomycin, dicumyl, octylamine, zhongshengmycin, copper clothianidin, copper Tai Sen, copper quinoline, chlorobromoisocyanuric acid and Paecilomyces polymyxa can be sprayed when they are pulled out and buried deeply. Spray continuously for 2 ~ 3 times every 5 days.
What brand of good corn field should be used as herbicide after maize seedling: 40% atrazine mixture and 52% atrazine mixture150 ~ 200ml can be selected; In the early post-seedling stage (1 ~ 4 leaves), 23% nicosulfuron atrazine 100 ~ 120 ml, 50% Yubao wettable powder 100 g or 38% atrazine100ml+can be selected. In the middle stage, 200 ~ 300ml of 10% glyphosate, 20% paraquat 100 ~ 150ml or 40% atrazine 150ml and 20% paraquat150ml were used for windless directional spraying.
These varieties can be used as long as they are the products of regular manufacturers.