Asparagus Winter Field Management Techniques and Methods Tutorial
As the weather gradually turns colder, everyone must have felt the chill of winter. Now that winter is gradually setting in, many asparagus growers are also successively doing their preparatory work for overwintering asparagus. Although asparagus is tolerant of low temperatures, if it is not managed, it will still have a certain impact on the quality and yield of asparagus. So how should asparagus be managed in winter? Today the editor brings you the winter field management methods for asparagus. Let's take a look together!
1. Clean the field in time
Autumn is the season for harvesting asparagus. After harvesting, the field cleaning work should be done in time. If there are completely withered stems and branches in the field, they should be pulled out by hand in time. Those that are not completely withered should not be pulled out, otherwise it will waste nutrients in the field and affect the yield and quality of the second year. Moreover, stems and branches that show no withering phenomenon should be kept intact to prevent damage to the bud scales, which would be somewhat harmful to the new stems and branches of the second year. When cleaning the field, a knife must not be used to cut them, otherwise new shoots will sprout again at the cut, consuming field nutrients. After pulling out the withered stems and branches, clear them from the garden together with some fallen leaves and take proper disposal measures.
2. Disinfect and prevent disease
Field cleaning is only a surface-level task. Many pathogens and insect eggs are still hidden in the field, and after temperatures rise in spring they will come out and harm the growth of asparagus. Therefore, in order to reduce pathogens in the field and lower the incidence of various pests and diseases, after completing the field cleaning work we should also do a good job of soil disinfection in time. Although soil disinfection cannot completely eliminate pathogens, it can still greatly reduce the number of pathogens. When disinfecting the soil, agents such as chlorothalonil can be used for spraying and root drenching, then an appropriate amount of carbofuran can be spread on the soil, which can effectively reduce the incidence of disease.
3. Water and fertilizer management
After field cleaning and disinfection, in order to ensure that asparagus can successfully overwinter, we should strengthen water and fertilizer management in the field. Fertilizer trenches can be dug on both sides of the asparagus. Decomposed farmyard manure and compound fertilizer can be used as fertilizer, and attention should be paid to the nutrient ratio in the fertilizer. When fertilizing, avoid direct contact between the asparagus roots and the fertilizer to prevent the roots from being burned by the fertilizer. After applying the base fertilizer, water immediately to promote the dissolution of the fertilizer and make soil fertility uniform. Let asparagus have sufficient nutrients and water support during the overwintering process, and improve the overwintering survival rate of asparagus.
4. Loosen the soil and remove weeds
After fertilizing and watering, properly loosen the soil and remove weeds to enhance the soil's moisture-conservation capacity, increase soil temperature and humidity, and fully mix the soil with the fertilizer. Moreover, loosening the soil can effectively improve soil permeability, promote root growth and development, and make its nutrient absorption capacity stronger. Loosening the soil can be carried out together with weeding. Weeds have a very strong growth ability. If weeds are not removed in time, most of the nutrients of asparagus will be taken away by them. This will cause asparagus to be unable to grow normally. When weeding, weeds can be pulled by hand, or herbicides such as fluazifop can be used for chemical weeding.
The above is a brief introduction to the winter field management methods for asparagus. Growing asparagus has different management methods in each season. Now that winter has arrived, it is essential to do a good job in all aspects of preparatory work to help asparagus successfully overwinter so that its yield and quality will not be affected. That is all for today's introduction. This article is for reference only. Thank you all for reading and supporting.