Lily sowing period
It is suitable for mid-late September in the Central Plains; in alpine areas, it is too late, too little rooting before winter, not flourishing in the beginning of spring, and unfavorable emergence of seedlings; too early, the ground temperature is too high, and the bulbs are susceptible to disease and rot, resulting in lack of seedlings and weak seedlings. The general principle is to be early rather than late. The daily average temperature is about 20 ℃, and there is no high temperature above 32 ℃. The best sowing time is sunny day after rain.
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The main epidemic factors of Lily Diseases and the skills of Integrated Control
First, symptoms: on leaves, stems and bulbs. The leaves are susceptible to disease, causing them to wither. The initial leaf tip turns brown, the length 1-2mm, and then gradually aggravates, the disease spot expands into a nearly triangular, thinning, dry and withered shape, with cloud patterns on it. The length of disease spot is generally 17-28mm, the width is 5-8mm, the maximum length of disease spot is 56mm, the width is 12mm, and finally the leaves die, and some of them occur at the leaf edge, which is semi-oval brown disease spot, which can also lead to leaf death. Ground
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Propagation technology of lily
It is mainly propagated by scales, bulbs and bulbs. First, cultivate the seed stem (1) scale propagation when the leaves of lilies begin to turn yellow in autumn, select strong and disease-free plants, dig up the bulbs, cut off the base, separate the scales, take the inner scales, plant them in trenches according to plant spacing of 3 cm and row spacing of 17 cm, cover the grass to preserve soil moisture from September to October. After planting, the bulbs grow from the cut, develop into new plants in the spring of the second year, and then colonized or cultured continuously for 3 years in autumn.
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