Guolan vernalization matters needing attention

From the winter solstice to the big cold, it is the season with the lowest temperature in all parts of the country. People are used to calling it the winter. When we talk about Yilan in the midwinter season, we cannot forget the vernalization of orchids.

The vernalization of the so-called "Guanglan" refers to the low-temperature period that must be experienced during the reproductive growth of orchids. It plays an indispensable role in promoting the growth of buds. The degree of vernalization is related to the quality of orchid blossoms. It cannot be taken lightly. Three issues must be observed.

First, vernalization should be sufficient. In general, the best vernalization period for orchids is during the period from light to heavy cold. The temperature in this period is best controlled from 0C to 12C. The vernalization time can generally not be less than one month, especially the time from the winter solstice to the big cold.

Second, bogey temperatures are too high or too low during vernalization. During the vernalization period, the temperature should not fluctuate too much. Below the minus 5C temperature and the temperature above 15C are not conducive to the normal growth of buds, easily lead to orchid buds, affecting the height of the bud, Chunlan often appear "by spring open" Phenomenon, so that flower products greatly reduced.

Third, avoid excessive humidity during vernalization.

In the orchids of nature, the vernalization period is the period when the humidity of the air and the humidity of the soil are the lowest. However, the ecological environment of orchids in nature is the direction that the industry operators in Lan Lan must strive to create. Therefore, the humidity of the vernalization stage and the humidity of the basin soil should not be too high, otherwise it is easy to rot and rot, which is not conducive to the growth of Lancome in the coming year.

Practice has repeatedly proved that low-temperature vernalization is an insurmountable stage in the reproductive growth of Lancome, and orchid-cultivators cannot artificially change it in violation of natural laws. For orchids to bloom better, orchids must be fully vernalized.

Spray growth regulators. Wang Miao leaves drape, the organization is soft, due to reduced nutrition and resistance to reduce production. Therefore, Wang Miao must be used chemical regulation, in the convulsions period, can use 15% paclobutrazol 50 grams, watering 75 kilograms of spray, control high and thick, control and strong growth, so that Wang Miao become high yield fields.

In addition, when the frond grows at a high speed, in order to slow down the leaf speed and control the growth, a 0.5% solution of chlormequat may also be sprayed.

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