Anthracnose of Cymbidium officinalis
Chlorophytum capense (L.) 0. Kuntze alias hard leaf spider orchid, fishing orchid. It is a perennial evergreen herb of Liliaceae. Use the whole herb as medicine. It has the effect of nourishing yin and clearing heat, moistening lung and relieving cough. It is mainly distributed in the southern provinces. In the north there is also indoor planting.
Symptoms, pathogens, transmission routes and conditions, control methods see orchid anthracnose.
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Winter production of cut rose in northern China
The out-of-season production of rose requires that the flowering period is from September to April of the following year, so there should be both summer control and greenhouse management in winter. You can choose varieties with strong adaptability, such as Velcro, Sabensa and so on. 1, fertilization and density requirements: rose should be fully fertilized before planting, generally 5 square farm manure and 2 chicken manure should be applied in each shed, mix well and turn into the ground and rake flat. Make the border in the north-south direction, the width of the border is 1 meter, and the length is limited to the width of the shed. Two rows can be planted in each row, with a row spacing of 0.4 meters and a plant spacing of 0.3 meters, which is generally suitable for 7 trees per square meter.
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Three traps should be avoided in purchasing Phalaenopsis seedlings.
Now it is the sales season of Phalaenopsis seedlings. according to the consumption habits of our country, the sales peak of finished flowers of Phalaenopsis is concentrated on the eve of the Spring Festival. Therefore, the Phalaenopsis seedlings purchased by manufacturers at this time are basically 2.5-inch medium seedlings, that is to say, according to the normal growth cycle of Phalaenopsis, the seedlings of this specification can blossom and appear on the market just before the Spring Festival next year. However, many manufacturers have experienced such embarrassment. They obviously bought 2.5-inch seedlings, but they could not blossom as scheduled. They suspected that there was something wrong with the seedlings, but the seedling suppliers said they were unripe.
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