White crane taro is shade-tolerant, and its growth needs can be met as long as there is about 60% scattered light, so it can be cultivated indoors with bright scattered light all the year round. In summer, it can block 60% ~ 70% of the sunshine, so direct sunlight should be avoided, otherwise the leaves will turn yellow, and in severe cases, sunburn will occur. Cultivation in greenhouse in northern winter can be done without shading or less shading. If the light is too dim for a long time, it will not bloom easily. White crane taro is a high-temperature variety and should be cultivated in high-temperature greenhouse. The lowest temperature at night in winter should be 14 ~ 1.
White crane taro
6℃, it should be around 25℃ during the day. Long-term low temperature can easily cause leaves to fall off or turn yellow.
During the growing period, the pot soil should always be kept moist, but it should be kept moist for a long time to avoid over-watering, otherwise it will easily lead to rotten roots and yellow plants. In summer and dry season, it is very beneficial for the growth and development of plants to spray water on the leaves and surrounding ground with a fine-eye sprayer to keep the air moist. When the climate is dry and the air humidity is low, the new leaves will become smaller and yellow, and in severe cases, they will turn yellow and fall off. Water should be controlled in winter, and it is advisable to make the soil slightly wet.
Applying thin compound fertilizer or decomposed cake fertilizer and water once every 1 ~ 2 weeks in peak season is not only beneficial to the healthy growth of plants, but also to the continuous flowering. The winter temperature in the north is low, so fertilization should be stopped.
Potted soil can be made of humus soil or peat soil with about 1/4 river sand or perlite, and a small amount of bone powder or cake powder can be added as base fertilizer. Pot soil should be loose, well drained and breathable. Generally, the pots should be changed once a year before a large number of new buds germinate in early spring. When changing pots, some perennial soil should be removed, roots should be pruned, and new culture soil should be added to the first pot for planting, which is beneficial to root development and growth.
Soil is fertile loam rich in humus. Strong sex, heat resistance, moisture resistance and shade resistance. Planting in East China needs greenhouse for wintering. 、
Training problem handling
White crane taro wilting: There are many reasons for white crane taro wilting, mainly due to environmental discomfort and improper maintenance.
1. Improper lighting. White crane taro needs better light in winter and early spring, and it should be shaded gradually when the light is getting stronger. If you enjoy it in the shade, you should not be exposed to the sun directly, otherwise you will be uncomfortable due to the rapid changes in the environment, wilting, yellow leaves and even dying.
2. Humidity: White crane taro needs high growth humidity. Too dry air will cause leaf wilting, which can be solved by strengthening water spraying or sprinkling water on the environmental ground, or covering with transparent plastic bags. However, in the case of good light, it is necessary to ventilate slightly or open a vent at the upper end of the plastic bag, otherwise the temperature in the bag will rise sharply.
White crane taro
3. Improper fertilization. Fertilization should use thin fertilizer, not thick fertilizer or raw fertilizer, and water should be used once after applying solid fertilizer. It is best to use thin fat water instead of water, so that fertilizer damage will not occur generally and plants will flourish.
4. The temperature is uncomfortable. Generally, this will not happen at this time, and it is easy to happen when the temperature is lower than 5℃ or higher than 35℃.
5. Pests. If mites are harmful, leaves will appear wilting, tarnishing, yellowing and other bad symptoms, which can be prevented by spraying acaricides, such as dicofol, nisolone, pyridaben and so on.
The flowering of white crane taro and light crane taro are not only caused by light, but also need to be induced. The method is to spray gibberellic acid and artificially induce plants to bloom. Different varieties have different flowering times. Small varieties react quickly to gibberellic acid, and they can bloom in 7-9 weeks after spraying. It takes10-10/week for middle varieties and 12- 13 weeks for big varieties. It should be noted that excessive concentration of gibberellic acid will cause deformation of plants and flowers, generally between 1000- 1500 times.
As for the light, when the light is strong, it should be raised with semi-shade or scattered light, and it is best to give sufficient light conditions in winter, which is not only beneficial to the dark green leaves, but also conducive to wintering.
White crane taro-application value
Potted plants, clustered plants or rows of plants in the shade of flower beds and gardens, or greening on the edge of stone groups or pools. It is especially suitable for the atrium layout of houses, schools or high-rise buildings.
Exhaust gas filter-white crane taro
The white crane taro cultivated by water roots can adjust the indoor temperature and humidity by evapotranspiration, and can effectively purify volatile organic compounds in the air, such as alcohol, acetone, trichloroethylene, benzene, toluene, chlorine monoxide and ozone. Especially for ozone, the purification rate is particularly high. Put it next to the kitchen gas, it can purify the air and remove the odor, lampblack and volatile substances when cooking.
White crane taro-pest control
Common bacterial leaf spot, brown spot and anthracnose harm leaves, and 50 times of 50% carbendazim wettable powder can be sprayed. In addition, root rot and stem rot occurred. In addition to paying attention to ventilation and reducing humidity, 75% chlorothalonil wettable powder 800 times solution was used for prevention and treatment. Sometimes scale insects and red spiders are also harmful, and they are sprayed with 50% marathon EC 1500 times.
Prevention and control of scale insects: the method is to wipe with a rag, spray 500 times of wind oil solution or washing powder, spray methidathion, chlorpheniramine, Guoguang Kete and so on. , and the results are good.
Generally, it is easy to suffer from this pest because of poor ventilation. Scale insects suck the juice of flowers and plants and generally don't move. Erasing is the most environmentally friendly method, but it must be wiped clean.