Wheat sowing has been completed, most of them have been seedlings, one of the next tasks is to weed, weeding before weeding is good or after weeding is good, many farmers have a lot of controversy about this issue, this article to introduce in detail to you when it is best to play herbicides.
Some farmers feel that it is good to play herbicides years ago, because the weeds have just emerged a few years ago, they are relatively young, and the resistance to herbicides is weak, at this time, weeding will be easier to kill weeds, and the cost of weeding will be low, after the weeds are removed years ago, the nutrients and water required by wheat will not be absorbed by weeds, which is more conducive to wheat growth; but there are also some farmers who think that it is better to play herbicides after years, because the weeds have just grown out, the herbicides cannot be thoroughly beaten, and the temperature may rise after the year, and the weeds will grow again. At this time, you have to use herbicides again.
In response to this problem, high-yield agriculture specially consulted experts in wheat planting, and experts suggested that herbicides can be used after the year and year, but it is recommended that everyone use herbicides years ago.
1. If you spray herbicides years ago, the effect will be better
The optimal control period for weeds is when weeds grow 2-3 leaves, that is, years ago, when weed seedlings have low resistance to herbicides. The key is that the wheat has not yet matured, and the herbicide can be applied directly to the surface of the weed. In the next year, after the wheat ridge is sealed, weeds and wheat are mixed with each other, and the herbicide solution is not easy to hit the weeds, and the efficacy of the herbicide will be greatly reduced. Generally speaking, herbicides taken years ago will work better than those played in new years.
2. Herbicides were sprayed years ago, and the cost was relatively low
At present, the herbicides on the market are generally used when the weed grows to 2-4 leaves, but after the year, when the weed grows to 5-6 leaves or even larger, the amount of herbicide can only be increased to kill the weed. The same herbicide, which could have hit an acre of land in one set, could only be beaten for 7-8 minutes after a year, which increased the cost.
3. After years of herbicide, it is easy to cause drug damage
It is well known that the larger the wheat, the higher the probability of drug damage after application of the herbicide. After wheat reaches the jointing stage, it is not advisable to apply herbicides. Some farmers, in order to wait for good weather, joint wheat is still using herbicides, etc., and the result is that wheat is harmful.
4. Herbicides were used years ago to help wheat overwinter
Due to the colder winters, some areas may grow wheat in advance to achieve freeze resistance before winter begins. Early sown wheat will emerge early, at this time the weeds have been exposed, if the herbicide is not used that year, weeds are easy to compete with the wheat for nutrients, moisture, is not conducive to the safety of wheat in winter.
Wheat growth cycle is very long, playing herbicides is just to inhibit weeds, so that wheat better growth, in the wheat growth period, there will be a lot of diseases and insect pests, wheat needs insufficient nutrients, will also affect wheat growth, want wheat yield also need to spray fertilizer, high yield agriculture recommends that we use all aspects of wheat yield increase package.
The first time the wheat return to greening and jointing period is sprayed with the first multi-faceted yield increase package, each bag of multi-faceted yield increase package dilutes 2 barrels of water and sprays an acre of wheat field, which can promote the development of wheat roots, more capillary roots, more white roots, thick stems, wax powder; the leaves are thick green and shiny, promoting tillering, and increasing the effective tillering of mu by more than 20%.
After the rejuvenation period, the yield increase package was sprayed again in various aspects at the wheat budding and gestation stage and the wheat flowering filling stage, respectively, to prevent disease and resist, promote root strength, live stalk maturation, leaf green seed yellow, improve the seed setting rate, high grouting degree, increase 1,000 grain weight, promote tillering, and increase yield significantly. After using the three-fold increase set, the wheat seeds are golden and shiny when the wheat is harvested in the wheat field, and the grains are large and full.
At this point, everyone should know when it is best to play herbicides, in fact, we can play herbicides according to the local wheat growth situation and their own time, if you can't beat it years ago, there is no time, and you must fight after the year. High-yield agriculture provides a full crop protection program for wheat, prevents and controls wheat diseases and insect pests, promotes tillering, increases the weight of 1,000 grains, prevents dry and hot wind, and harvests 200 catties per mu.