Asparagus clear garden the best time.

Asparagus high yield can not be separated from the management of good economic benefits, and farmers who grow asparagus in general know that to manage asparagus and increase yield, the key is whether pests and diseases can be controlled. Therefore, all cultivation measures for asparagus are centered around the central goal of disease prevention and high yield. Asparagus clean garden in winter is the most critical part of the disease prevention of asparagus. Whether the garden is timely or thorough is decisive for the incidence of stem blight of asparagus in the second year.

Asparagus stem blight disease of the three elements is the bacteria base, rain and infection carrier. The size of the bacteria base determines the degree of asparagus disease. The smaller the number of pathogenic bacteria, the lighter the disease, and the better the control. Clear gardens in winter are the best time to reduce the number of pathogenic bacteria. In August and September, it is the peak incidence of asparagus stem blight, and the serious plots are yellow until the asparagus stems and leaves in September, when a large number of pathogenic spores are hidden in the disease. In the sporangia of the stems, these diseased stems are scattered in the fields and are scattered with the strong winds of the winter, making them a huge hidden danger in the second year. Once the temperature is high in the second year and the rain is hard, the germs will infect the young stems and become the first infestation source in the second year.

In order to control stem blight of asparagus, the most important thing is to clear the garden in winter. The time to thoroughly clean the garden is best when it has just entered the winter, which is the beginning of the Gregorian calendar in early December. At this time, the stems and leaves of the asparagus have been yellow, but there is also toughness, the stem is not broken, the leaves do not fall out of the body, this is the best time to clear the park. Using a sharp tipped spade, shovel the roots of the asparagus 5 cm below the ground to make the asparagus fall down. Then remove the whole stems and leaves of the asparagus from the bamboo shoots. Clean up the entire ground again, pick up some of the branches that have been left in the field and bring out the fields. If the timing of clearing the garden in winter is well understood and thoroughly cleaned, then add soil sterilization to eliminate it. 80% of the disease is caused by the greatly reduced incidence of stem blight in the second year.

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