Soil requirements
The iris is not too high for the environment. Spring species, autumn species can be. The iris is not high for soil requirements, and it is necessary to ensure a certain humidity. It is necessary to have a short-lived iris soil for some growth cycle. If it is in the heavy soil, add some peat, vermiculite or coarse sand agitation can improve the soil.
Greenhouse control
The temperature of the soil is quite important, minimum control is 5 ~ 8 ° C, the highest is more than 20 degrees Celsius. The high and low soil temperature will affect the emergence of the iris. The optimum temperature is between 16 to 18 ° C.
Greenhouse planting iris, the optimum temperature is 15 ° C. The temperature in the first three weeks was maintained at 18 ° C. 13 ° C or during the high temperature of the iris, it will extend its growth period, and increase the iris weight, but the flowers are easier.
In the autumn greenhouse, it is necessary to ensure the light photo, and the temperature in the greenhouse should be low to prevent the flowers. It is preferably 10 to 13 ° C. The plant growth stage should be considered trimmed the blade.
The average temperature during the day and the night is 20 ~ 23 ° C, and the low temperature control is within acceptable range of the iris. Temperature high sunlight is an important reason why flowers withered.
In some areas where the frost natural disasters are prone to, the cultivation process is preferably in the greenhouse. The temperature of the growth is better at night. The greenhouse without temperature control conditions should be closed earlier, which will make the night temperature more suitable for the growth of the iris. It is necessary to ventilate as soon as possible in the day to prevent the temperature of more than 18 ° C to the iris. Shielding sunlight is one of the controlled means, but the right amount of illumination is still maintained.
Drainage requirements
With a good drainage system, it can make water more soil use. This can also solve the problem of salt accumulation caused by water.
Fertilization point
The method of planting the fertilization before the iris causes the root growth of the iris. Fertilization is simple for local conditions. Different land are different fertilizers. I can’t use phosphate fertilizer and triphosphate. Dipphophosphate can be used.
Clear weed
The iris grows takes eight to twelve weeks. After the soil is treated, the iris grows without worrying about weeding. After the iris planting, it is generally used to remove weeds with a herbicide. But care should not cause harm to the iris.
Breeding
The seed storage temperature must be planted immediately at 30 ° C, cutting flowers. If it is not immediately planted, it should be stored in a suitable temperature. Temperature should reach the growth requirements of the breeding, must always warm up to ensure the growth of the breeding. The temperature is maintained at 2 ° C, which is not more than 2 to 3 weeks, which is the best choice. The storage temperature above 2 ° C will extend the time of treatment, which is unfavorable to the flowering. Place the stalk in the bottom of the vacant container. The storage temperature maintains good ventilation at 2 ° C. The ball is not suitable for long-term storage, and the stalks of stalks after storage time is too long, and it is also easy to receive the infection of Piga.
It is important to keep the flowers of the iris in the planting period. A few days a few days ago, so that it can guarantee the rapid growth of the previous root, and the root is not easy to be damaged during planting. Watering with cold water is appropriate when the soil temperature is too high. The soil temperature is high, and the growth of breeding will be very fast, and the quality of the cut flowers will be bad. When the species is selected, the soil temperature is low. The material covering the insulated material on the floor can prevent too much sun radiation.
