In recent days, when wheat is sown, it is raining and raining, and it is always not so forceful. What should I do if wheat continues to rain after sowing? What steps need to be taken?
What to do if wheat varieties are not properly selected?
The sowing of spring and weak winter varieties in the Zhonghua and Zaoxian plots will cause the wheat sprouts to prosper before the winter, which is not conducive to safe wintering.
Countermeasures: On the basis of early demarcation and repression, pre-winter soil shall be used to encircle the roots, or a cover shall be applied to “protect the head of manure†to protect the wheat seedlings from wintering safely.
What happens when wheat is sown early?
The wheat sowing was too early. After the seedlings were unearthed, the leaves were long and narrow and the pods and tillers were insufficient. The main stem and a portion of the big buckwheat were differentiated before entering the two-legged stage in winter, and in the winter, when the temperature was -10°C and continued for about 5 hours, Freezing damage will occur.
Countermeasures: timely repression, inhibition of the growth of the main stem and bullae; pressure after the timely scratching, and combined with water, Mushi ammonium bicarbonate 15 kg, if necessary, with 0.2-0.3% of the chlorophyll solution spraying, to control Actress, resistant to freezing injury.
What should I do if wheat is sown late?
Due to the short growing period before winter and the insufficient accumulated temperature, the growth of young wheat seedlings is thin and the number of tillers is small.
Countermeasures: Mainly using paddling and replenishing fertilizers, and applying 10 to 15 kg of ammonium bicarbonate in the three-leaf stage; soils with poor soil moisture and fast water seeps, and timely pouring of drowning water after the three-leaf stage (however, appropriate moisture or soil moisture, Poorly waterlogged plots should not be watered before the winter); the last time it is ploughed before freezing, it is necessary to pay attention to the soil surrounding the roots in order to protect the seedlings safely overwintering.
What if wheat sowing is too shallow?
Wheat sowing depth of 3-5 cm is appropriate, sowing shallow (less than 3 cm), the growth of young wheat seedlings, bare tiller section, tiller is more than small, not drought, susceptible to frost and premature aging.
Countermeasures: Squeeze a few times before emergence, combine the roots of the soil after the emergence of seedlings. If necessary, cover the soil with a cover soil or cover the “headed manure†during the wintering period to prevent overwintering and freezing.
What if the wheat is sown too deeply?
The wheat is sown too deep (more than 5 cm), the emergence is slow, the film is slender, the tillering is small and small, the secondary root is weak and the wheat seedling is yellow and thin.
Countermeasures: Timely clearing the earth. The method is: using a bamboo rake or shovel to start from the center of the sampan surface, along the ridge to cross the ridge, when cleared to the last line, the rest of the soil will be dragged to the back of the rake; for the appropriate sowing of wheat, the pre-winter qingke It usually starts from the two leaf stage and ends when it is "small snow".
What if the wheat sowing is too large?
The performance of wheat seedlings is crowded, the plants are yellow, thin, weak, and their individual development is poor, with few tillers.
Countermeasures: First, sparse seedlings, especially in the fields, fields and fields, should be sparse and sparse in order to establish a suitable group structure and promote individual development; combine watering, topdressing with small amounts of nitrogen and phosphorus. Fast-acting fertilizers to make up for the excessive consumption of soil nutrients.
How to deal with excessive base fertilizer?
Excessive application of base fertilizer, wheat seedlings grow out of the post-emergence, more tillers, leaves large, field cover is serious.
Countermeasures: When the main stem of wheat grows 5 leaves, it is 5-7 cm deep between the rows of wheat, cut off some secondary roots, control nutrient absorption, reduce tillers, and cultivate strong seedlings.
What should I do if I don't have enough lye after my broadcast?
The performance of the emergence of wheat seedlings difficult, or born after delivery of the childbirth slow, gray-green leaves, short leaves, slow growth or stagnation (commonly known as "contracted heart"), the base of the leaves by the Zhejiang yellow dry, small and fine roots.
Countermeasures: After sowing, check the soil moisture in time, and treat the plots with insufficient waterlogging or dryness. The plots with watering conditions should be treated with small water irrigation, and the plots without watering conditions should be suppressed 1-2 times in time.
What should I do if the soil is too wet after sowing?
After the wheat seedlings were unearthed, the leaves were pale yellow and the tillers were born slowly. When they were severe, the tips of the leaves became white and dry.
Countermeasures: Timely deep cultivating ventilation, and applying a small amount of quick-effect fertilizer to promote early-onset seedlings.
What to do if seedlings are incomplete after sowing?
After the sowing of wheat, the seedlings should be checked in time. Once the seedlings are found to be lacking, complete the repairs. The method is: 1, replant. Choose the same variety as the lack of seedlings, first soaking seeds under suitable temperature conditions, germination, or soaking with 25,000 times of naphthaleneacetic acid or 500 times potassium dihydrogen phosphate solution for 12 hours, and then sowing, in order to facilitate emergence and growth; 2 Transplanting. For lands that are not ready for replanting and replanting, there is still a lack of seedlings that can be transplanted and planted on the spot in the wheat tillering period. Transplanting wheat seedlings should be selected from 1 to 3 seedlings. The depth of transplanting should be “not buried on the ground and not exposed on the ground,†and the transplanting time should not be later than “little snow†in order to facilitate the growth of seedlings. And wintering.
What happens when wheat meets with rainy days after sowing?
Since October, Shandong, Henan, Jiangsu and Anhui provinces have experienced different degrees of rainfall. However, the wheat at this time has basically entered the late stage of sowing. What effect does continuous rain have on the emergence of wheat?
In general, the germination of a single wheat seed not only requires the seed's own conditions, such as complete, viable embryos and nutrients for embryo development, but also external conditions such as suitable temperature, adequate moisture, and sufficient air. .
Temperature The minimum temperature at which wheat seeds germinate is 1 to 2°C, optimally 15 to 20°C, and highest 30 to 35°C. In the optimum temperature range, the seeds of wheat are the fastest growing and the germination rate is the highest, and the longest wheat seedlings are also the most robust. If the temperature is too low, not only the emergence time will be greatly delayed, but also the seeds will be susceptible to diseases and rotten seeds will be formed.
Humidity After wheat is sown, insufficient or excessive soil moisture can affect the emergence rate and uniformity of emergence. The most suitable soil moisture for wheat germination is 60% to 70% of field water capacity. Therefore, check the soil moisture before sowing.
Air germination and emergence of wheat seeds require sufficient oxygen. In the case of soils with heavy clays, high humidity, and surface compaction, seeds are often unable to germinate due to lack of oxygen. Even if they grow barely, the growth is very weak.
Continuous rainfall will affect the soil's temperature, humidity, air permeability and other conditions. At this time, farmers' friends need to do:
1, timely drainage. For plots that have not been sowed, the plots should be sowed in time for soil preparation and cause damage to the seeds that have been sown.
2, increase the amount of broadcast. An increase of 2-3 pounds per acre, the maximum mu can not exceed 30 pounds.
3, choose a good variety. Select semi-winter breeds with large sowing dates.
4, loose soil. It is necessary to remove the compaction of land after the weather and promote the emergence of seedlings.
5, to conduct seedling reseeding. If it is found that there is a lack of seedlings and ridges, the same variety shall be replanted in time.
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