How to prepare the soil in the place where day lilies are planted? Day lilies are warm and adaptable, but the aboveground parts will wither when they encounter frost. Developed root system, strong drought tolerance and good hillside growth; The requirements for soil are not strict, and it can be planted in sandy soil, clay, Pingchuan and mountainous areas. But red and yellow soil is the best. Day lily is a perennial crop. Pay attention to deep ploughing when cultivating land, which is beneficial to root growth. Tillage depth is 20-30cm, and it should be leveled, ridged and ditched. In order to facilitate the daily management in the future, the border width should be 1- 1.5m, and the border length is not limited, in line with the principle of convenience.
The key point of day lily planting technology is that close planting can give full play to group advantages, increase the number of tillers, bolting and budding, and achieve the purpose of increasing production. Generally, it is cultivated in wide and narrow rows, with a width of 60-75cm, a narrow row of 30-45cm and a hole spacing of 9- 15cm. Plant 2-3 plants per hole, 45,000-75,000 plants /hm2, and reach150-225,000 plants /hm2 in high yield period. The root groups of day lily grow around the shortened stems, with the characteristics of 1 year and 1 layer, and the roots move up year by year from bottom to top, so proper deep planting is beneficial to the survival and prosperity of the plants, and the suitable planting depth is 10- 15cm. After planting, root water should be poured, and the soil should be moist frequently before the autumn seedlings grow, which is beneficial to the growth of new seedlings.