When is the best time to sow wheat? Analysis of the causes of uneven seedlings

Wheat is a common grain crop in our country, grown in almost every region, but mostly in the north, and it is one of the main staple foods of the north. So when is the best time to plant wheat? What is going on with uneven seedlings?

1. When is the best time to plant wheat?

1. Spring wheat planting time: in the Northeast region it is generally March to April.

2. Winter wheat planting time: in the North China region it is generally around November.

Because before winter even arrives in the Northeast region of our country, there is already a thick layer of snow and the temperature is very low, which is not suitable for wheat growth, so it is generally not planted in winter. However, the climate in the North China region of our country is relatively stable throughout the year, allowing multiple rounds of crop rotation, so it is just right to sow wheat in winter after other crops have finished harvesting in autumn, in order to prevent the land from lying idle.

2. What is going on with uneven wheat seedlings?

Cause 1. Improper seed storage: before harvesting wheat, it must be done at noon on a sunny day, and the harvested wheat must be dried to remove moisture, and finally placed in a dry, ventilated place. If stored improperly, the plumpness of the seeds will be reduced, thereby lowering the germination rate. In daily life, many farmers like to mix and sow new seeds with old seeds, but this is actually not good and is the most likely to cause uneven emergence.

Cause 2. Poor soil: wheat likes to grow in an environment with deep soil and strong water storage and fertilizer retention capacity. If the soil loses moisture quickly or the soil is too loose, it will be very difficult for the seeds to emerge, naturally resulting in uneven seedlings.

Cause 3. Insufficient nutrients: when wheat grows in plots where no base fertilizer has been applied or only a small amount of base fertilizer has been applied, poor growth will occur due to insufficient nutrients. In addition, if the base fertilizer applied contains undecomposed organic fertilizer, or if the fertilizer is applied too sparingly, seedling burn and seed damage can also occur.

Cause 4. Weather reasons: the germination and sprouting of wheat seeds and the emergence of seedlings have certain requirements for soil temperature and humidity. If sowing is too late and the temperature is low, the emergence rate will be reduced and the emergence time will be prolonged. If it is dry at sowing, or if clay soil encounters heavy rain and causes soil crusting, it will also affect emergence.

Cause 5. Pests and diseases: if the seeds are not coated or treated with chemicals before sowing, after sowing they are prone to damage by underground pests such as white grubs, cutworms, wireworms, and mole crickets, causing missing seedlings and broken rows. In addition, if wheat is sown too late, under low-temperature and high-humidity conditions it is highly susceptible to infection by pathogens, leading to disease and dead seedlings, or when herbicides are used, drug residues may cause phytotoxicity, which will also affect normal emergence.

Remedial measures for uneven wheat emergence:

1. Thin and fill in seedlings in time: after wheat emerges, check the field conditions promptly. Dead and withered seedlings should be pulled out in time, and areas with no seedlings or overly dense growth should be transplanted and filled in promptly, so as to ensure uniform seedlings.

2. Cultivate and loosen the soil at the right time: during wheat growth, soil should be hilled up at the right time according to soil crusting conditions, and surrounding weeds should be removed promptly to improve soil aeration and promote seedling growth.

3. Do a good job in pest and disease control: during the planting period, do a good job in various management tasks such as water and fertilizer and weeding to prevent the occurrence of pests and diseases. For those that have already developed pests and diseases, specialized chemicals can be used for control.

The above is the relevant introduction to wheat planting time, causes of uneven emergence, and remedial measures. I hope it is helpful to everyone.