Is corn spraying effective in controlling prosperity? How many days does corn growth control agent h

I think it's better. Because after the pesticide is applied, the yield of corn will be increased, and there will be no pests and diseases.

It should be 1-2 weeks to see the effect, but it is not urgent, corn growth has a certain cycle, the use of wangwang is to make corn no longer grow so crazy, so that corn earing period and subsequent growth can get enough nutrients, to maintain the growth of the whole corn.

After the "big flare" of corn appears, the female spikelets and florets of corn begin to differentiate, and the timely re-application of bud fertilizer can promote the normal development of the ear and increase the grain, and the bud fertilizer is generally applied in a timely manner 14 days before heading. If the base fertilizer is insufficient and the growth of corn is weak, it is necessary to increase the amount of fertilizer, and the rotting farmhouse fertilizer and Yanwo microbial agent can be applied per mu, and at the same time, according to the soil moisture, appropriate watering to replenish the water.

Proper fertilization at the flowering stage can prolong the grain filling period of corn, promote grain filling, improve seed setting rate, and increase yield. If in the early management, the fertilization is insufficient and the soil nutrients are insufficient, it is best to apply an appropriate amount of tapping fertilizer. It can be used per mu with water-soluble fertilizer and high phosphorus fertilizer, mixed with an appropriate amount of fine soil, and applied near the roots of the plant, but do not directly contact with the root system.

If the soil moisture is insufficient, it can be used to irrigate the roots of the plants with fertilizer and water.

Hello, what to do if the anti-wang agent is too early 1, after spraying the anti-wang drug, immediately pour an appropriate amount of water on the corn to dilute the liquid medicine to reduce the effect of the drug as much as possible, and at the same time spray triasanol + medium and trace element foliar fertilizer to promote the growth of corn. 2. When the temperature is 25 and the humidity is 70%, use 10-15ml of brassinin and 2g of gibberellin water to mix 15kg of water, shake evenly and spray corn leaves. 3. Use 800 times the liquid of Jiamei dividend to irrigate the corn roots, and at the same time spray the corn with 30g of urea and 100ml of glucose with 15kg of water, spray once every other week, a total of 2-3 times.

It's not to be resprayed. No matter what kind of corn anti-dumping agent is used, spraying can be done once, and do not spray back and forth, re-spray, if you want to re-spray, you need to reduce the amount of spraying. Choose to spray on a sunny day, mix and apply, as long as it does not rain for 4 hours after spraying.

The period of use of corn control agent is the corn 6 10 leaf stage, that is, the corn "ruler height" to the corn "knee height", this period is the early stage of corn jointing, after spraying, the corn stem can be thickened, the internodes are shortened, the ear height is reduced, and the number of layers and strips of "overlord root" increases.

It should not be necessary, as long as it rains for two hours after the spray, the effect of the medicine can be maintained by 70 to 80

Looking at the instructions, there are drugs on the general medicine box, and the nature of the administration is also different.

Generally, there should be an explanation for the control agent, and it should be fine to look at the instructions!