Day lily cultivation techniques

Day lily is divided into 7 stages of fertility: from February to mid-March is the budding stage, from mid-March to late May is the spreading leaf stage, from late May to mid-June is the convulsive period, and from mid-June to 7 In the first half of the month, the flowering buds are sprouted, and from early July to early August, the post-harvest dry leaf stage. From early August to early autumn, the frost is the autumn leaf stage, and after the frost, it is the dormancy period until the next year. Lilies are warm and adaptable, but the aboveground parts are withered in case of frost; roots are developed, drought resistance is strong, and they grow well on hillside slopes; they are widely adaptable to light and can be grown on sand, clay, plains, and mountains. There are many varieties of lily, according to the maturity of the early, middle and late maturity, such as early-maturing dragon species, medium-maturing mid-autumn flowers, late-maturing Mengzi flowers. Cultivation Techniques (1) Breeding and planting Day lily mainly uses ramets to reproduce. The time can be after the flower buds are harvested and before the winter seedlings germinate. It can also be some time before the spring seedlings are withered after the winter seedlings wither, but the former is better. When digging seedlings and seedlings, rooting should be minimized (preferably sunny), digging seedlings, side seedlings, side seedlings, such Miaowang, return seedlings quickly. Take every 2 - 3 tillers as a bundle, remove from the roots of the roots, remove the disease and old roots, leaving only 1-2 new roots; , can be planted (line spacing 70 cm -90 cm, plant spacing 33 cm -50 cm, planted around 2000 per acre). In order to maintain a relatively high yield in the following year, the ramets generally account for about 1/4 to 1/3 of the whole plexus, and ramets can be excavated on the other side of the culm after several years. Usually planted in a triangle, 3 clusters per hole. (2) After the field management is planted for 2 years to 3 years, the root protection should be done well every year, and serious water and soil flow should pay attention to Qin Pei. Generally in the middle of April before the bud, in mid-June and mid-August, each budding fertilizer is applied one after another, soliciting lotus root fertilizer, budding lotus fertilizer and autumn exhibition leaf fertilizer. Recruiting manure should be replanted, urea can be used per mu 10 kg -15 kg, 10 kg potassium, 25 kg of superphosphate, in order to promote convulsions and bud formation. After the post-harvest period, the stalks were removed and 6 cm to 7 cm were cut to remove the old leaves. During the dormant period, the remaining leaves were burned and deep-turned over 30 cm, and the basal fertilizer was applied. Drought can cause buds. Spraying plants with 1ppm (parts per million) 2.4-D will have a certain effect on preventing buds. (3) The main pest control diseases include leaf blight and leaf spot disease. The commonly used 0.5%-0.6% Bordeaux mixture or 80% Zedexite 700 times spray is used to spray the disease 7 days to 10 days after the occurrence of the disease. Co-spray 2 times -3 times; followed by rust, can be used 0.2-0.4 Baume and sulfur control agent, the effect is good. The main insect pests are spider mites and aphids. They can be controlled by lime sulfur, chlorhexidine, omethoate, and cypermethrin. After the plucked leaves were cut, a thicker lime sulfur was sprayed immediately on the remnants of the shoots. During the growth of the winter seedlings, the selection of dimethoate EC in the warm weather caused a significant reduction in the pests in the following year. (d) Intercropping Day lily most varieties were harvested in August, and although winter seedlings were drawn afterwards, the leaf bundles were small and the winter seedlings withered after the defrost. They did not develop spring seedlings until the following spring. Therefore, radishes, broad beans, onions, garlic, etc. can be planted on idle land during this time to increase economic efficiency. Source of information: China Special Product News Editor, China Agriculture Network