When is spring corn to control the growth of the drug

It is recommended that you spray strong ears during the booting period of spring corn to strengthen the physiological function of crops, improve the quality of pollination, fertilization, and filling, and increase the weight of 1000 grains.

Generally, it is used when 6-10 leaves are used to control Wang, and the best effect is when 7-9 leaves, and do not use it before 6 leaves and after 10 leaves. It is best not to use corn with poor growth or to use it in half. There is a "little fat dun" corn control drug in the market, and the effect is good.

The best time for spring corn is when spring corn is about to emerge.

At the 5-8 leaf stage of corn, the "corn chubby" produced by Zhengzhou Zhengshi Chemical can be sprayed

The time of application for lodging control and lodging control of corn is the period of 6-10 leaves of corn. 1) At the 6-10 leaf stage of maize (i.e., the early stage of stem jointing and panicle differentiation growth period), the appropriate use of wang control agent to control the growth of stems and leaves can promote the development of maize roots, shorten the stem nodes, thicken the stalks, reduce the ear position, increase the ear length, and increase the number of grains per ear. It is an effective measure to increase production.

2) At the 6-10 leaf stage of corn, 30 ml of 20% corn mequat per mu, mixed with 10-20 kg of water, stirred thoroughly, and evenly sprayed on the upper leaves of corn before 9 am or after 5 pm. 3) Precautions: If you use too much and prepare too much, you can use "gibberellin" to rescue.

When spraying, the spray is strong and not weak, and the spray is high and not low. Avoid repeating medications.

It is best when the heading rate of the field reaches 5%.

The best period for the use of corn control agent is the corn 6 10 leaf stage, that is, the corn "ruler high" to the corn "knee high", this period is the early stage of corn jointing, spraying can make the corn stem thicker, the internode is shortened, the ear height is reduced, the number of layers and the number of corn control drugs must be in the 7-9 leaf stage. That is, in the early stage of jointing, it is most suitable to spray with 3-5 grams of amine per mu. This spraying can effectively control the elongation of the basal internodes of corn and make it shorter and thicker.

Premature harm of controlling the vigor: the use of the vigor control agent in the corn less than 6 leaf stage, due to the early control, resulting in the corn stalk is not prosperous, the stalk is too low, so it is recommended to apply it after the 6 leaf stage. 1-2 yuan of fungicide, 2-3 yuan of insecticides, as well as synergists, penetrants, etc., [one spray and eight prevention] or [two control and eight prevention], can improve the ability to resist adverse threats in 8 aspects at the same time.

Many farmers will choose to use a growth control agent when there are seven to eight true leaves, which is easy to cause the plant to be short and the stick is relatively short. Therefore, the use period of chemical growth control agent should be reasonably grasped.

The nutrients are transferred to the formation of the panicle, so that the panicle formation is more sufficient, and the nutrients will also be transferred to the leaves, so that the thickness of the leaves increases, the photosynthesis is stronger, and the nutrients synthesized are more. The first is to pay attention to the spraying period; Second, the spraying should be uniform and not repeated spraying. Incorrect shrinkage of corn:

Originally, the basal 1 3 internodes should be shortened, but now the middle 4 5 internodes are shorter than the basal 1 3 internodes, which not only can not effectively prevent the lodging of maize, but also leads to poor growth of maize, resulting in a reduction in maize yield in the later stage.

Chlormequat is an antagonist of gibberellin, and its mechanism of action is to inhibit the biosynthesis of gibberellin in plants. Its physiological function is to control the growth of plants, promote reproductive growth, shorten the internodes of plants, develop root systems, and resist lodging. Let the ear position of corn in the later stage move downward, reduce the center of gravity, and be more stable; Let the corn have a strong root system, multiply the root of the overlord, make the corn have a strong grip, and enhance the ability to resist adversity.

Corn control medicine, 7 10 leaf stage spraying is the best, because this period of corn has entered the jointing stage, growth accelerated, at this time control will shorten the internode of corn, thicken the stalk, developed roots, so that the corn plant height is more reasonable, the plant type is compact and moderate, robust, and lay a solid foundation for high yield.

The time for corn to flourish is when it has grown 6-10 full leaves. Therefore, drugs with a wang-controlling effect also need to be played at this time. If the plant has not yet grown more than 6 full leaves, do not apply the spray.

Otherwise, the plant will not be able to grow taller and affect the yield. If the plant has grown more than 12 complete leaves, do not apply pesticides. Failure to do so may result in crop shrinkage, which may affect yields.

The so-called control of wang is to spray the control of wang when the corn has 6-12 leaves, and the upper leaves of the plant can be sprayed during the period, which is conducive to shortening the internode of corn, growing an extra layer of overlord root, and resisting lodging, and at the same time, it can also promote the concentration of nutrients to attack the large ear, prevent bald ears, and achieve super high yield of ear length.

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! The main ingredient of corn control is amine ester ethephon, it is recommended that you spray the leaves and heart leaves evenly when the corn is flare, that is, when the spring corn has 9-12 leaves, and the summer corn has 7-11 leaves!

Remember not to respray, don't miss spray! You can add a little emamectin fenozide and brassinolide to prevent insects and increase production, and the effect is better!

The absorption effect of corn control is the best before 10 a.m. and after 4 p.m. However, avoid controlling the drug at high temperature at noon, as too high temperature will lead to rapid evaporation of the drug and affect the effect of wang control.

Generally, the best absorption range of Wangwang drugs is in the morning or evening, when the temperature is not very high, which is conducive to the absorption of drug efficacy. Excessive growth to dwarf will inhibit plant growth and, in severe cases, lead to the death of corn plants.

Premature control will affect the normal growth of corn, and even cause corn to temporarily stop growing, and the corn plant type is too low, resulting in slow ear emergence and poor growth, which will affect the yield.

If the time of peak control is too late, the effect of peak control will not be achieved, and it will also cause the problem of reduced pollen and pollination rate of corn, resulting in a decrease in corn yield.

When the corn grows to 7-10 leaves, it means that the corn has entered the jointing stage. When the corn grows to 7-8 leaves, this is the best time to control the vigor.

Does it affect the excessive growth of the control of wang

1. Affect corn yield: excessive dosage of drug control will lead to excessive inhibition of plant growth potential, which will slow down the growth of corn plants and reduce corn yield.

2. In the case of severe overdose, corn plants will also die.

3. Precautions for controlling wang:

1) The time to control the prosperity should be in the jointing period, not at other times.

2) The dosage of Wangwang drug must be in accordance with the instructions, and the dosage cannot be increased or decreased at will.

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.