Weeds are one of the biggest challenges that wheat farmers face. They compete with the wheat crop for sunlight, water, and nutrients, reducing the yield and quality of the wheat. Therefore, it is crucial to understand the occurrence and growth peaks of weeds in wheat fields and how to control them effectively.

The first peak of weed occurrence in wheat fields is in the first half of October in autumn. Weeds such as wheat family public, sowing maidenhair, shepherd's purse, seedling, witch hazel, large nesting cabbage, zebra, summer solstice, and goose not to eat grass are transitional weeds that can safely overwinter, with most of them flowering and fruiting from April to May the following year.

The second peak occurs in the spring from late March to early May, including gray ashwagandha, flat storage, horsetail, and celosia. These weeds bloom, bear fruit, and mature before wheat harvest.

In general, the occurrence of weeds is more common in autumn, with around 80% of total weeds occurring during this time. They have characteristics such as high density, long symbiosis with wheat, and serious damage, which can significantly affect wheat. Weeds in wheat fields will be concentrated in two growth peaks.

The first peak occurs when wheat has grown to 3-4 leaves, and the second occurs after the wheat has begun to green plucking. These two times are most likely to breed weeds and also the time when herbicides' effect is better.

When using herbicides in wheat fields, it is necessary to be cautious as they can be three times more potent, which can cause severe crop damage if not used correctly.

The selection of herbicides and formulations must be accurate and determined based on the main weed species on the ground and the herbicide's herbicidal spectrum. In weedy wheat fields, several herbicides must be mixed in a certain ratio to expand the range of herbicidal species and improve weed control.

It is essential to choose the appropriate herbicide for each plot's specific weed type and to follow the manufacturer's guidelines carefully to avoid harming the crops.

In addition to selecting the correct herbicides and formulations for weed control in wheat fields, there are other important factors to consider. Proper timing of herbicide application is crucial to maximizing effectiveness while minimizing crop damage.

It is also important to pay attention to weather conditions, as certain herbicides may be less effective in extreme temperatures or if rain is expected shortly after application.

Additionally, crop rotation can be an effective long-term strategy for weed control, as planting different crops in succession can disrupt weed growth cycles and reduce the buildup of weed populations in the soil. Finally, hand weeding and other manual methods can be used in conjunction with herbicides for more targeted and sustainable weed control.

Weeds can cause significant damage to wheat crops, reducing their yield and quality. Understanding the two growth peaks of weed occurrence in wheat fields and the appropriate herbicides to use can help farmers effectively control weeds and ensure successful wheat production.

Proper weed control management in wheat fields is crucial for the optimal growth and yield of the wheat crop.