Really prosperous seedlings: When the wheat is planted earlier, the soil is comfortable and proper, the fertilizer is used reasonably, and the humidity is suitable, which has laid a good foundation for the growth of wheat seedlings. However, due to the premature planting time, under the condition of proper (sparse) wheat seed use, excessive tillers have been caused before winter. After the return to spring, due to various conditions, the wheat continues to tiller to form vigorous seedlings.
Fake vigorous seedlings: Seen from the appearance, they grow vigorously, with no shortage of seedlings and continuous ridges. However, if a part of the wheat seedlings are pulled out and checked separately, you will find that they are basically single seedlings, and the secondary roots are about 1-2. This type of wheat field population seems to be large, but the individual seedlings are actually very small.
The main reason for the emergence of false vigorous seedlings is that the roots of wheat seedlings cannot absorb more nutrients due to dense planting; the plants are dense and crowded, and the leaves cannot absorb more photosynthetic nutrients and transmit them to the roots. However, the roots cannot grow normally and cannot absorb more nutrients. The nutrients in the soil are transported to the stems and leaves, eventually causing a vicious circle, so that there are few roots, weak plants, and no tillering.
Wangchang wheat fields are prone to insufficient field light, malnutrition, and susceptibility to freezing damage, pests and diseases, and lodging. Therefore, it is necessary to carry out scientific management on the vigorous seedlings during the rejuvenation period of wheat in winter.
Real prosperous seedling management: â‘ Slight chemical control in winter, do not rush to water after turning green, just hoe to loosen the soil, keep moisture and increase temperature, when you are about to get up, topdressing and watering. â‘¡ Wheat fields with large populations are moderately controlled in winter and need to be top-dressed and watered after getting up and jointing. â‘¢For the flourishing wheat fields, suppress or severely control the seedlings in winter, topdressing and watering as soon as possible when turning green, supplement nutrients and promote growth.
False prosperous seedling management: False prosperous long wheat fields generally suffer from freezing damage due to malnutrition of the wheat seedlings. Therefore, in early spring, we should plan and hoe the wheat as early as possible, and fertilize and water in time when the wheat returns to green. Due to the excessive consumption of soil nutrients before winter, top-dressing and watering are required at the jointing stage to promote the transition from wheat seedlings to strong seedlings.
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