The corn has seven or eight leaves, and the autumn will begin in fifteen days, can you beat the dwar

The spraying time of corn mequat is generally during 6 to 10 leaves, usually the corn height at this time is on the knee, in the early stage of corn jointing, choose to spray mequat at this time, which can effectively control the ability of corn to grow upward, shorten the internode to control its altitude, avoid excessive consumption of nutrients, increase the stout degree of the plant, deepen the rooting ability of corn, fundamentally control its growth rate, and avoid the lodging of corn caused by too high plants.

Excessive and premature use of mequat will cause the growth of corn plants to be suppressed, the height of corn is seriously dwarfed, and it is in a state of growth stagnation for a long time, which will cause delay and disconnection in the growth cycle of corn, and improper use of mequat will aggravate the occurrence of corn rough shrinkage disease, corn is in a kind of only leaf obvious growth, and the plant does not appear jointing, which will have an impact on the pollination of corn in the later stage, and then lead to a reduction in corn yield, when spraying mequaticin, For some corn seedlings, the spraying object is limited to those corn seedlings that are too vigorous, and those weak seedlings and small seedlings cannot be sprayed.

It should be possible to drive a short pile, and there are 15 days of great heat, not the beginning of autumn, and there is still a month before the beginning of autumn.

Seven or eight leaves per meter. Spraying brachymetin is not suitable. Has an impact on corn growth, will. This has led to a reduction in corn production. Only corn seedlings that are too tall should be sprayed. Short Strong.

I think I can beat the dwarf Zhuang Su.

Chlormequat is a kind of corn using chemical control of drugs, we are also called growth regulators, it refers to, with a specific chemical drug spraying, to control the growth height of crops, take corn spraying mequat as an example, spraying can effectively reduce the overall height of corn plants, reduce the ear position of corn growth, increase the rooting ability of corn, and can reasonably distribute the supply and loosening of various nutrients, so as to achieve the purpose of improving the lodging resistance and high yield of corn.

Because the use of the regulator is different, the rise of corn is different, the spraying dose is inconsistent, so the effect of mequat spraying and the recovery time of corn are not the same, usually we know through the discovery that when mequat sprayed for about 5 days, its efficacy will be volatilized, and the individual corn plant symptoms, the specific manifestation of corn branches and leaves has a drooping performance, that is, we often say drooping leaves, but when spraying about 15 days after the time, The whole growth of corn will return to normal, and from the overall performance, except for the spraying of chlormequatin, after the appearance of pesticide damage, then it itself will not appear specific and obvious characteristics at that time.

So the subject does not need to be too entangled in this problem, when you use the time after spraying mequat for 10 days, you can go to the farmland to see, under normal circumstances, as long as the branches and leaves grow normally, then there will be no pesticide damage.

How to use mequat correctlyThe first thing to state is that mequat has no direct effect on high corn yields, and not all corn needs to use mequatin.

The biggest purpose of spraying mequartin, and the biggest effect is to prevent corn lodging, so its direct effect is to prevent the lodging risk caused by severe weather such as strong convection, wind and rain on corn growth, which is not the same concept as high yield of corn, not that you spray mequatin, corn must have high yield This is two different things.

Second, not all plots of corn need to be sprayed with mequartin, such as those corn sowing too late, the growth itself is relatively short, there or the corn is congenitally poor, the growth is not vigorous, the plant is dwarf, the branches and leaves are yellow, and if the local drought and lack of rain, the corn plot is not enough moisture, then the corn grown in these cases can not or minimize the amount and time of delaying the use of mequaticin in corn.

First of all, it is strictly in accordance with the "spray high not spray low, spray strong not weak, spray black not spray yellow" to spray work, under normal circumstances, corn branches and leaves are completely Shu 6 to 10 leaves can be used during the mequat can be used, too early or too late will likely lead to corn pesticide damage, so this must be noted. Usually after spraying mequaticin, there is no significant rainfall within 5 hours, it will not affect the efficacy of the drug, in the whole growth cycle of corn, can only be used once, remember not to spray twice, when there is too much pesticide damage caused by spraying mequaticin, it is necessary to use the spraying of plant regulator foliar fertilizer in time to carry out remedial measures, generally as long as the remediation is done properly and timely, corn can also be restored as before.

Generally, it will have an effect in about five days, and the effect will be exerted, and the growth of corn can return to normal after about fifteen days of spraying. Due to the different growth of corn, the dose of spraying is also different, so the recovery time of corn after spraying mequat is also different.

Chlormequat was applied once with a foliar spray at the corn flare stage, diluted 1500 times. The concentration per mu is used in the ratio of 99% chlorquat to 50 kg of water per 10 ml. If the amount of water is low, the internodes above the ear will be shortened too severely.

When mequat is sprayed for about 5 days, its efficacy will be volatilized, but when it is sprayed for about 15 days, the entire growth of corn will return to normal.

Because the use of the regulator is different, the rise of corn is different, the spraying dose is inconsistent, so the effect of mequat spraying and the recovery time of corn are not the same, usually we know through the discovery that when mequat sprayed for about 5 days, its efficacy will be volatilized, and the individual corn plant symptoms, the specific manifestation of corn branches and leaves has a drooping performance, that is, we often say drooping leaves, but when spraying about 15 days after the time, The whole growth of corn will return to normal, and from the overall performance, except for the spraying of chlormequatin, after the appearance of pesticide damage, then it itself will not appear specific and obvious characteristics at that time.

The purpose of corn spraying chlormequat is only to shorten the internode, reduce the plant height, and improve the lodging resistance of corn. It can grow normally after beating, and it doesn't have any other big effects.

The best time to use corn mequat is the 6 10 leaf stage of maize, and the use of maize mequat can not only effectively prevent corn lodging, but also promote the movement of nutrients to the ear, and reduce empty trees and bald tips.

In terms of developmental stage, mequat is generally used when corn is in the jointing stage. In terms of plant height, mequat is generally used when the height of corn is about 40-50cm.

In terms of seedling emergence time, if it is spring corn, it is generally used about 30-35 days after sowing and emergence, and if it is summer corn, it is generally used about 20-25 days after sowing and emergence.

Caution for the use of corn quartin:

Strictly control the concentration, dosage and frequency of liquid medicine. The concentration is too large to inhibit the normal growth of corn, and the concentration is too small to play the role of controlling the stalk and strengthening the seedlings. Keep in mind the principles of spraying chlormequatin.

Spray high but not low, spray strong but not weak, spray black and not yellow". For high-fertility fields, plots with more base fertilizer or varieties with higher corn stalks, the dosage should be appropriately increased.

Spray evenly to avoid uneven height. Do not spray on windy days to prevent the loss of the liquid. Spray after the dew is dry, and if it rains within two days after spraying, it should be re-sprayed in time; After spraying 2 to 4 days, it can be watered to avoid the loss of the medicinal solution.

The 8 leaves of the jade infiltration jujube fiber rice are long and the clumps imitate the height of the meter, and then hit the rock song dwarf and the squaint can still be beaten?

Eight of the leaves have grown to a height of meters, and they can no longer be beaten with methostat.

<> planting Yuyan rice is generally in the 6-12 leaf stage, of which the 6-10 leaf stage is the best period. Timely spraying of certain amounts of chlormequat can help corn grow more ears and reins, thereby increasing the yield of corn. An appropriate amount of mequat solution can be evenly sprayed on the leaf surface, and the concentration of application should not be too high, otherwise it will lead to the shortening of the internodes of corn plants, and even bald tips occur, so that the corn yield will be reduced.