Key Management Points After Picking Daylily and How to Handle Rainy Days
Daylily is a very common vegetable, and it is currently quite widely distributed on the market in our country. In recent years, many people in our country have been growing daylily, but after planting and picking, management is also needed. So what exactly is the method? When daylily encounters rainy days, it may be prompted to bloom, so what should be done?
How to manage daylily after picking
1. Clear weeds and eliminate pathogens. After daylily is picked, the field and garden should be cleaned up in a timely manner, and the weeds and diseased plants in and around the field should be removed. The old leaves of daylily should be cut off to reduce nutrient consumption, which helps early autumn shoots emerge and promotes the quality of tillering. The removed weeds and diseased plants should be promptly taken out of the field and garden for elimination, and fungicides should also be sprayed appropriately to reduce the occurrence of field diseases and pests.
2. Deep plowing and fine turning of the soil. Soil is an indispensable necessary condition for crop growth, so deep plowing and fine turning should be carried out to improve the soil environment. It should generally be done in clear weather, and a depth of 25-30cm is best, cutting off the aging root system of daylily and promoting the growth and rooting of new roots.
3. Disease and pest control. The main diseases and pests of daylily are red spiders and small cutworms, so timely spraying of targeted pesticides for control can effectively reduce the occurrence of these pests.
How to handle daylily on rainy days
On rainy days, you can only spray some paclobutrazol and chlormequat on the surface of daylily to inhibit the flowering period and extend the flowering period. Other effects are not very obvious. On rainy days, daylily buds grow quickly and bloom early, so the harvesting time needs to be appropriately advanced. The buds of daylily open one after another, so after starting to pick, you must persist in picking on time every day. Whether cloudy, sunny, windy, or rainy, it must be picked, otherwise once the flowers open, the commercial value of daylily is reduced.
How to prevent and control daylily diseases
1. Daylily anthracnose. The greatest threat of this disease is to the leaves. The cause of the disease is that the spores of the pathogen attach to the plant with the activity of insects. The environment where it occurs is most likely to be warm and humid. First, some brown spots appear on the edges of the leaves, and finally, as time goes on, they extend inward. In severe places, black rot and perforation appear. After discovering the disease, 70% thiophanate-methyl 1000-fold solution can be used for control. After the disease is cured, it is best to spray 1-3 more times, with an interval of one week, to avoid recurrence.
2. Rust disease. This is also one that has a relatively serious impact on daylily. The disease mostly concentrates on the stem and stalk parts, and its spread is extremely high. The time of occurrence is before and after bud formation. When the disease occurs, irregular rust-colored spots first appear on the plant, then slowly spread to the surroundings and connect together. In severe cases, the whole plant looks as if it has rusted. The relatively effective control agent is 25% triadimefon WP 1000-fold solution. After discovery, it is best to spray all plants.
Picking and processing of daylily
1. Picking. Daylily should be picked in a timely manner every day. Those that mature early should be picked first, and those that mature late should be picked later. If picked too early, the buds have not fully expanded and the yield is low; if picked too late, the buds split open or bloom, which also affects yield and quality. Mature daylily buds are yellow-green, plump, with obvious longitudinal grooves on the petals, and are just about to bloom.
2. Processing. To make dried daylily products, the picked daylily should be steamed in a timely manner. Arrange the harvested daylily neatly in a steaming sieve for steaming, with the height of the flowers not exceeding 5 cm. The appropriate standard for steaming: the color changes from yellow-green to pale green, and when the buds are gently rubbed and pinched with the thumb and index finger, a sound is made. Generally, steam at high temperature for 5——8 minutes. The function of steaming is to quickly kill the activity of the cells inside the buds, making drying easier.
After daylily is picked, management work such as weeding and disease control must be done well. If it is a rainy day, some medicine should be sprayed in a timely manner, which can slightly extend its flowering period. If daylily gets diseases, prevention and management need to be strengthened to avoid letting the harm become more serious.