I. Weeding in corn fields
first question
When should cornfield herbicides be used?
A: The herbicide must wait until the corn 3 leaves 1 heart can be played.
Corn 3 leaves 1 heart, that is, there are already 3 unfolded leaves and 1 unexpanded new leaves on the corn plants. This is the 3 leaf stage of corn, commonly known as 3 leaves and 1 heart. Farmers must learn to distinguish between cockroaches and the three-leaf stage. If you mistake the two leaves and one heart for the three-leaf period, it is early to fight the herbicide, and the corn is too small to hold.
When the corn grows to the 3-leaf stage, the physiological function of the corn begins to be strong, and the secretion of a large amount of ketone can effectively resist nicosulfuron. So it is time to fight herbicides.
second question
What kind of pesticide can corn herbicide mix with?
A: It can be mixed with methicillin, avermectin and pyrethroid pesticides.
Third question
What kind of pesticides can corn herbicides not mix with?
A: Corn herbicides are strictly prohibited to be mixed with organophosphorus pesticides!
Second, corn topdressing
First ask everyone, the following three kinds of mistakes, you have not experienced?
The topdressing time is relatively late, and it is waited until the corn is heading.
No matter what kind of fertilizer, all of them are applied at once, and some are applied at the time of sowing.
If the weather doesn't rain, it won't be fattening. It doesn't look at the growth of the corn in the ground. If it doesn't rain, it won't catch up.
Let's talk about the things about corn topdressing, which is divided into 5 points.
1 period of topdressing
During the growth period of corn, the best time for topdressing is in the big trumpet period, because more nutrients are needed at this time, and it is also a key period in the growth process. How do you judge the big bell period? It is usually when the 11-12 leaves of corn are unfolded. At this time the blade unfolds and looks like a big bell mouth, so it is called the big bell mouth period.
2 choose what fertilizer
If the corn is topdressed, most of the friends will choose urea. This is correct, but it is recommended to add some potassium fertilizer. Although corn is a nitrogen-loving crop, potash cannot be ignored.
3 need to chase several times
Under normal circumstances, corn topdressing needs two times, that is, small bell mouth and big bell mouth period, but due to the limitations of agricultural machinery, most farmers are chasing once.
4 top dressing method
The correct way is to apply deep pits, then cover the soil, so that the utilization rate of fertilizers is improved. In addition, it is also a good way to topdress in the furrows. If you have more friends, you can choose this. What is not recommended is that the people often use the applicator. Although the fertilization is fast, the waste is also serious and the absorption rate is greatly reduced.
5 topdressing amount
As mentioned above, corn is a nitrogen-loving crop, and urea is used as an example. The amount of urea is not fixed. It is determined according to the fertility of the soil. Under normal circumstances, it is about 20 kg per mu. If the fertility of the plot is good, it can be reduced to about 15 kg. If the soil is poor, it can be increased appropriately. It is about 25 kg.
In addition, remind you that if you encounter drought in the land, you should water it after topdressing, or topdress in time after the rain.
This article Source: Agricultural Finance Network Seeds Collection
This article URL: When does the corn herbicide hit? Herbicide use time and usage precautions
Organic Matcha powder is a form of green tea. Its name is derived from the Chinese words, [cha" (tea) and [ma" (powder), and like all other true teas, comes from the Camellia sinensis plant. Matcha refers to the method in which the leaves are grown and processed. Organic green tea is grown in the high mountains, due to the geographical advantage of high altitude, our green tea contains up to 20% tea polyphenols, and tea polyphenols have good anti-oxidation and anti-aging effects.
Organic Matcha Powder,Organic Matcha,Orgnaic Matcha Green Tea,Matcha Green Tea Powder
Organicway (xi'an) Food Ingredients Inc. , https://www.organicwayince.com