From late August to early September, after a long period of harvest in spring and summer, the nutrients stored in the root of asparagus have been basically exhausted, the thinning stems have become thinner, the fiber has increased, and the quality and yield have decreased significantly. Withered, the harvest must be stopped at this time and transferred to the autumn management. In the autumn management, the focus is on the retention of the asparagus's autumn hair stem to accumulate nutrients, which will lay the foundation for the high yield of spring asparagus next spring. First, thoroughly clean the garden and remove germs. After harvesting the asparagus, clear the garden and keep the stems in order to avoid affecting the fall. Generally, from late August to early September, all sunny days are cut on the stems of the mother stalks, and weeds are removed from the field and burned. The soil around the plate is opened and the sun is exposed for 1-2 days. Then use 40% asparagus blue powder 600 times solution and 300ppm agricultural streptomycin to sterilize the root disc and the surrounding soil to reduce the number of pathogenic bases, so as to protect the growth of the tender stem from harm. Double application of autumn fertilizer, promote stem hair. Re-applying Qiufa rejuvenation fertilizer will help promote the growth of autumn stems, expand plant photosynthesis, and accumulate more nutrients to lay the material foundation for the next year's high yield. Autumn fertilizer mainly organic fertilizer, requires more than 4,000 kilograms of organic fertilizer applied to Mushi, plus compound fertilizer 25 kilograms or 50 kilograms of phosphate fertilizer, potash 10 kilograms, urea 20 kilograms mixed application. At a distance of 20-30 cm from the plate, the ditch is 15-20 cm deep and the soil is applied after the fertilizer is applied deeply. One month after fertilization, the fertilized manure was applied every 10-15 days. Mushi 10 kg was applied. Beginning in late September, apply root fertilizer once 5 days before top dressing or 5 to 7 days after dressing. Use foliar fertilizer such as brassin to spray asparagus on the stems and leaves of the asparagus in the evening or morning to enhance the plants, prolong the green period, and accumulate more nutrients. Three timely election stay, raise the mother stem. Qiufa Asparagus generally begins to keep mother stalks around the beginning of September. Specific retention time was selected with fine fields unearthed from all fields. The number of mother stalks retained depends on the year of asparagus cultivation and the size of the disc. In the year of transplanting, 10-15 roots were reserved for each plate (unclear gardens, only weak and yellow branches were cut off). More than 10 years were required to leave more than 10 branches and the mother stems were required to be evenly distributed. Fourth, prevent disease stems, pruning. September coincides with a typhoon and rainy season, with high humidity, high temperatures, and easy occurrence of autumn stems and tender stems. When asparagus stems are in the pumping stage, that is, when the tender stem grows to 5 cm in height, 40% of asparagus blue powder is applied 50 times, and the stem is protected and applied once every Other day. When coating, apply to all tender stems, all sides, without soil wound stems, the top 2 cm not coated. After branching tender stems, the lower stems are still smeared once every 2-3 days and even applied 2-3 times. The upper branches and leaves were sprayed once every 4 days with 40% asparagus blue powder 200 times plus agricultural streptomycin 300 ppm, sprayed 3-4 times successively, or immersed in the upper leaves with 100 times asparagus liquid in the basin; 300-500 in the later period. 40% of the green asparagus juice is sprayed once every 3-5 days until the end of October. Note: In the event of rain, the rain should be painted immediately after the stop, make up once, and spray evenly and thoughtfully. At the same time, we must also pruning in time, cut thin, weak, sick, aging, withered stems to prevent the spread of pathogens, piles on both sides of the plant to pull a rope to avoid lodging and maintain ventilation. Fifth, timely irrigation and drainage, weeding and weeding. There are more rains in autumn, and the drainage ditch needs to be opened in time around the shoot field so that the deep drainage ditch can be opened and the rain can be stopped. Weekly cultivator weeding in a timely manner to keep the field without weeds, soil loose, breathable. China Agricultural Network Editor
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