Reasons and Countermeasures for Orchid's Failure to Bloom

Shangnan County, Shaanxi Province, located in the junction of Qin, Henan and Hubei provinces, is one of the main production areas of Cymbidium and Cymbidium in Qinling Mountains. Orchid lovers abound here, thanks to a national orchid fever since the 1990s. Some go up the mountain to collect orchids, some are gifts from relatives and friends, courtyards, balconies, roofs, houses and houses can be seen everywhere, worthy of Qinling Orchid Township. But to the orchid blooming season, can see flowers, smell the flowers of a few; most families raise orchid in "one year flower, two years grass, three years when firewood burning" embarrassing situation. The professional orchid garden is full of flowers and flowers. For this reason, we analyzed and studied with many orchid friends, and thought that the main reasons why family orchid did not bloom and the countermeasures should be taken were:

It is known that some orchid plants are placed in the sun and receive direct sunlight all year round; some are placed in deep houses and do not see sunlight all year round; others are placed indoors all year round and can only see daylight during the day and light at night, replacing sunlight with daylight and light. It can be seen that one of the reasons why orchids cannot conceive buds and bloom is that they are not shaded in summer and autumn and are exposed to strong light; or because they have never seen sunlight, orchids cannot carry out photosynthesis and accumulate nutrients for reproductive growth. "Meiling Lan Yan" cloud: "Yin long leaves, Yang long flowers", only timely adjustment of good lighting, can flowers and leaves be excellent. Orchids belong to semi-shade plants, no sunlight can not, the sun is strong also can not. The correct lighting method is that the sunlight in winter and spring is weak, the light quality is mild, and the orchid plant can receive full light; the light in summer and autumn is strong, so it is necessary to shade according to the requirements of different varieties for light. If cultivated in the courtyard, winter and spring to the north to receive sunlight, summer and autumn moved to the south wall at the foot of the dark. Balcony cultivation, winter and spring to receive full light; summer and autumn with shade net to cover direct glare, conditionally moved to the north or east balcony. Courtyard, balcony still can cultivate grape, towel gourd and the like climber plant, both shade and cool down. This is conducive to the growth of strong orchid plants, pregnant buds flowering.

The temperature is not suitable for some orchid friends to put the orchid plant in one place all year round, no matter how the temperature changes, they are indifferent and let nature take its course. As a result, they either suffer from high temperature, rough leaves and burned leaves, or suffer from low temperature, damaged orchid leaves and rotten roots. In such a situation, even life could not be preserved, but flowers could still be seen? Temperature is one of the important conditions for raising orchids, and whether the temperature is appropriate is the key to flowering. We know that orchids suitable for growth temperature of 15℃~30℃, more than 30℃, less than 5℃ in dormancy, no suitable temperature can not bloom. Take spring orchid as an example here, flower bud differentiation is generally in July to August, the temperature required is 20℃~25℃, after several months of gestation, the average daily temperature is about 10℃ in early spring to bloom. We should adjust the temperature according to the requirements of orchids. In the non-temperature period, we should pay attention to cooling and humidifying in hot summer, and we should do a good job of cold protection and warmth in late winter and early spring. Only in this way can the orchid plant grow strong and have flowers to bloom.

Some families with insufficient fertilizer have never applied fertilizer once since the cultivation of orchid plants, so the more yellow the orchid leaves are raised, the thinner the orchid plants are, and the photosynthesis is extremely poor. In addition to long-term non-fertilization, nutrient accumulation is less than consumption, income exceeds expenditure, and it will not bloom. On the contrary, some will have nutrients, even leftovers and greasy things into the orchid basin, and cause the orchid plant to suffer from fat and premature death. Rich nutrient accumulation is the fundamental guarantee for orchid flowering. That is to say, in order to make the orchid plant bloom normally, it is first necessary to cultivate strong seedlings; to cultivate strong seedlings, it must rely on fertilization. Timely and appropriate fertilization is an important link in the process of fertilization. Orchid growth is divided into vegetative growth period and reproductive growth period; different growth periods have different requirements for fertilizer. Rooting and vegetative growth period should be dominated by nitrogen fertilizer, generally from the end of April to the beginning of July, once every half month. Bulb expansion and flower bud differentiation, generally in mid-July to the end of August, phosphorus and potassium fertilizer once every half month. Before flowering, it is necessary to apply quick-acting phosphorus and potassium fertilizer once more to make the flowers large, colorful and fragrant.

Watering loss of family orchid to water more do not care about, more no rules, principles at all. Remember, no matter whether the plant material dry or wet all water; forget, ten days and a half or even longer do not water once, so that the pot plant material is either too dry or too wet. Water is one of the material bases for plant growth, and it cannot survive without water. Orchids in the mountains are supplied with water by rain, snow, dew, earth atmosphere and earth tide, and the water is effectively regulated by nature. Orchids are watered artificially after they come down the mountain, but there must be a limit to the amount of water required, and they cannot be watered freely. We must follow the watering principle of "dry but not dry, moist but not wet";"not dry but not watered, watered thoroughly", and keep the plants in the pot dry and wet. In particular, it is necessary to prevent the soil in the autumn basin from being too dry. July to August is the flower bud differentiation period, at this time the wind is strong, the air is very dry, if the pot soil is too dry, it will hinder the accumulation of nutrients in the orchid plant, affecting the bud gestation and flowering.

Some seedlings of single plant are divided into 2~3 seedlings and 1 cluster in order to germinate and proliferate rapidly. Although this is beneficial to germination, it affects flowering. Orchids are plants that like to cluster and fear leaving their mothers. They are divided frequently, which makes them lose the conditions for transmitting information. Cultivation practice also tells us that every time a pot is turned over, it may affect a flower. If your goal is to breed orchids, it's okay to do so. If it is for flowering viewing, we should change this practice, as far as possible less pot turning, less sub-plants. Even if the plants are divided, at least 3 strong plants should be left for each cluster, and multi-generation conjoined, so as to facilitate multi-head accumulation, complement nutrition, improve the total amount of nutrient accumulation, and facilitate the cultivation of large seedlings and strong seedlings.

Weak root thinness is an inevitable phenomenon due to poor light, temperature, water and fertilizer conservation or neglect of management. Only when all aspects of orchid cultivation conditions are met, the roots of orchid seedlings have a strong source. In order to make the leaves wide and thick, the bulbs solid and stiff, and the orchid roots long and sturdy. With such robust plants, under the coordination of photosynthesis, respiratory function, transpiration metabolism and other aspects, rich nutrients are produced and accumulated, which creates good conditions for reproductive growth and lays a solid foundation for pregnant bud flowering.

The main diseases of orchids harmed by diseases and insect pests are anthracnose, white silk disease and root rot. After suffering, they are either damaged leaves, damaged roots or even whole plants die. Scale insects, aphids, red spiders, whiteflies, sting and sucking orchid juice, causing orchid leaves to wither and rot easily; ants nest in orchid pots and nibble on sweet orchid roots. All of these are harmful to orchid plants and affect the flowering of pregnant buds in different degrees. Disease prevention is mainly done well, and sterilization agents such as carbendazim are sprayed regularly and irregularly. The key to pests is to pay attention to regular observation and kill them with drugs in time.