After sowing wheat, there are still so many problems?
发布时间：2021-06-08 发布者：admin 所属类别：After sowing wheat, there are
What should I do if the wheat variety is not properly selected?
Sowing spring and weak winter varieties in the middle and early alfalfa plots will cause the wheat seedlings to grow long before winter, which is not conducive to safe wintering.
ANXIN compound fertilizer manufacturers agrochemical experts to provide you with countermeasures
On the basis of early drafting and suppression, the roots of the earth before the winter, or cover the "monticillary manure" to protect the wheat seedlings for safe winter.
There are several major problems after wheat sowing
What should I do if the wheat is planted too early?
Wheat is sowed too early. After the seedlings are unearthed, the leaves are long and narrow, drape, and tiller is insufficient. The main stem and part of the large stalks enter the two-edge period before the winter spikes. In winter, when they encounter -10 °C for about 5 hours, Frost damage will occur.
Countermeasures
Timely suppression, inhibition of the growth of the main stem and big scorpion; timely pressing after pressing, combined with watering, apply 15 kg of ammonium bicarbonate, if necessary, spray with 0.2-0.3% chlormequat solution to control the length, Resist the freezing damage.
What if the wheat is planted too late?
Due to the short growth period before winter and insufficient accumulated temperature, the growth of wheat seedlings is weak and there are few tillers.
Countermeasures
It is mainly based on rowing and replenishing water, and 10-15 kg of ammonium bicarbonate in the three-leaf stage; wheat field with poor soil moisture and fast water seepage, timely pouring water after three-leaf period (but suitable for soil moisture or soil viscosity and poor water permeability) The plot should not be watered before winter); the last time before freezing, pay attention to the roots of the earthworms to protect the seedlings for safe wintering.
What if the wheat is so shallow?
The sowing depth of wheat is 3-5 cm, the seeding is too shallow (less than 3 cm), the wheat seedlings grow, the minced section is bare, the tillers are many and small, not drought-tolerant, and susceptible to freezing and premature aging.
Countermeasures
In the timely suppression of the emergence of seedlings several times, after the emergence of seedlings combined with the roots of the soil, if necessary, in the winter period, the use of soil cover or cover the application of "monticures" to prevent wintering and freezing.
What if the wheat is too large?
It is characterized by the crowded growth of wheat seedlings, yellow and thin plants, poor individual development, and few tillers.
Countermeasures
First, timely seedlings, especially in the ground, on the ground and in the field, "small seedlings", to early sparse, sparse, to establish a suitable group structure, promote individual development; combined with watering, apply a small amount of nitrogen, phosphorus quick-acting fertilizer To compensate for the excessive consumption of soil nutrients.
What should I do if I use excessive base fertilizer?
Excessive application of the base fertilizer, the wheat seedlings emerged after the emergence of excessive growth, more tillers, wide leaves, severe depression in the field.
Countermeasures
When the main stem of the wheat seedling grows 5 leaves, it is 5-7 cm deep in the wheat line, cutting off some secondary roots, controlling nutrient absorption, reducing tillering, and cultivating strong seedlings.
What if the sensation is insufficient after the broadcast?
The performance is that the wheat seedlings are difficult to unearth, or the seedlings are slow to be born after the emergence of the seedlings, the leaves are grayish green, the heart leaves are short, the growth is slow or stagnant (commonly known as "reducing heart seedlings"), and the base leaves turn yellow and dry, and the roots are few and thin.
Countermeasures
After sowing, check the soil moisture in time, the plots that have affected the lack of moisture or the effects of falling out, the small water irrigation with the irrigating conditions, and the timely suppression of the anhydrous pouring conditions 1-2 times.
What if the soil is too wet after sowing?
After the wheat seedlings were unearthed, the leaves were light yellow, and the tillers were born slowly. When severe, the leaves tip turned white and dry.
Countermeasures
Timely deep-medium ploughing and diverting ventilation, and applying a small amount of quick-acting fertilizer to promote early emergence of seedlings.
