On the technique of Phalaenopsis oversummer
1. Measures: the oversummer of Phalaenopsis is mainly a cooling problem, so the following measures should be taken:
① plus double-layer shading net to reduce the light, can achieve a good cooling effect (2 ℃ ~ 4 ℃).
② ground sprinkling and irrigation. The temperature is very high in summer, but the temperature of the water just pumped out of the well is very low, about 16 ℃. Therefore, the method of sprinkling or irrigation can play an obvious cooling effect.
The cooling rate of ③ foliar spraying is the fastest, but the duration is the shortest.
④ ventilation. A square hole of 40cm × 40cm is drilled on the wall every 5 meters away from the ground height 70cm to increase ventilation and reduce the occurrence of diseases and insect pests, and turn on the fan above 25 ℃ to strengthen air circulation to facilitate plant growth.
2. bad phenomena that are easy to occur in the summer.
The leaves of ① aged and fell off, and the lower leaves of some plants declined during the summer, and gradually yellowed and fell off from the end of summer to autumn.
② diseases and insect pests are serious, especially the hot weather, air relative humidity is too high and no wind, high temperature, easy to lead to soft rot, brown spots, viruses and other diseases.
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Guangdong successfully bred "Shannong Phoenix" Phalaenopsis
Shantou Agricultural Science Research Institute (postcode: 515021, telephone: 0754-8101302) selected a new Phalaenopsis variety "Shannong Phoenix", which recently passed the variety approval of Guangdong Province. This variety has a correct flower shape, red flowers, bright color, red lines on petals and sepals, white background at the base of petals, a few red spray spots, sharp contrast, deep orange-red lips. The horizontal diameter of flowers is about 9.8 cm, the vertical diameter is about 8.0 cm, the number of flowers is 7-8, and the distance is about 3.6 cm. Pedicel 60-70 cm long
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Post-anthesis Management of Phalaenopsis
The post-anthesis maintenance of Phalaenopsis is very important, which has a direct impact on the safety of summer and flowering in the following year. After years of practice, the author summarizes a set of post-anthesis maintenance methods, which are introduced as follows: 1. After all the flowers of Phalaenopsis have withered, the flowers should be cut off from the base in time to reduce nutrient consumption. Some people keep the flowers and let them blossom for the second time, which is very undesirable. Because the probability of secondary flowering is not high, even if there are flowers, the quality is not good, the flowers are small and few, and the second flowering Phalaenopsis flowering quality the following year.
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