What are the varieties of daylilies? Day lily cultivation techniques and pest control points
What are the varieties of daylily? Daylily is rich in protein, fat, carbohydrate, calcium, phosphorus, iron, carotene and other elements, with chest, An five internal organs, through the milk and stomach, light body and eyesight and other effects. The common variety of daylily in the market mainly includes new varieties such as April flower, Jingzhou flower, eggplant flower, long mouth flower, scorpion flower and white flower. Next, Xiaobian talks about the cultivation technology of day lily.
First, grasp the limits of land fertilization
1. The planting soil of day lily is the best planting site with low groundwater level, thick soil layer and convenient drainage.
2. When deep-turning the soil in the planting area, it should be selected in a relatively hot day, the depth should be 20~30cm, and then the turned ground should be leveled.
3. Apply sufficient organic fertilizer to the base of the sorghum, and use the fertilized sheep manure 25~30t•hm -2 for the organic fertilizer, and combine it with the deep ploughing and smashing into the field; the urea is 500~600 kg•hm -2 and the phosphate fertilizer is 700~ 800 hg•hm -2 and potassium sulfate 300-400 kg•hm -2 .
Second, select high quality seedlings
1. Select seedlings for the growth of 5 to 6 years of high-purity, disease-free, pest-free robust seedlings, and the seedlings should have a large number of large clusters of mid-autumn flowers and perennial roots.
2. When transplanting the seedlings of these daylilies, dig up the roots of daylily, then cut the roots of daylily into 6-8 pieces with a knife, and finally cut the fleshy roots of the yellow flower menu. It can be planted in a hole.
Third, choose the right time for the cultivation of daylily
1. When transplanting daylily, avoid the harvesting period and growth period of daylily.
2. The main transplanting period of daylily is before the spring of the second year after the harvest of daylily.
Fourth, the amount of fertilizer must be scientific and reasonable
1. A large amount of nutrients are needed in each period of daylily growth, and sufficient nutrients are beneficial to flower bud differentiation and flower moss growth.
2. When the daylily flower buds are just extracted, combined with watering, cultivating, and applying a moist fertilizer; after harvesting the daylily at the end of June, combined with watering, topdressing 2 to 3 times; in the middle and late stages of picking, picking After that, 500 times of potassium dihydrogen phosphate is sprayed once every 7 days, and spraying continuously for 2 to 3 times to prevent falling buds from falling.
5. Prevention and control of day lily diseases and insect pests
1. The diseases and insect pests of day lily mainly include red spider, ground tiger, aphid, rust, leaf spot, leaf blight, and ground tiger.
2, ground tiger prevention: When the day lily turns green, it is necessary to use phoxim and trichlorfon to control the rooting of day lily.
3, red spider, aphid, thrips: timely detection of red spiders, in the first 10 days of the summer solstice to use acetamiprid, imidacloprid to control the emergence of aphids, thrips, in the picking period of day lily to use chlorella Benzoylamide control
4. Leaf spot disease and leaf blight: After picking the day lily, the seedlings of day lily should be sprayed with prochloraz.
Sixth, timely harvest
The best picking period of daylily from late May to late August is carried out according to the principle of “early ripening first, late ripening and thick harvestingâ€.
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