The most important management measures in the immortal seedlings are to prevent disease. As long as this is good, follow-up production is easier. It is necessary to pour it in the immortal to plant, and also cooperate with the spray. Due to a long latency of bacteria such as Summy, it is particularly prone to infection, so it should be carried out once a week after planting.
After planting, the anti-insect net is installed in the window window, and the yellow plate is hung in the greenhouse, strengthen the monitoring of throats, aphids and mites to prevent large area of pests. Regularly spray insecticides to the greenhouse and the surrounding environment, effective drug prevention and treatment of pests. The prevention and treatment of the disease should be started from environmental control, regulating the environmental conditions in the greenhouse, regularly splitting broad-spectrum fungicides for drug control. To select a commonly used insecticide and fungicide, the concentration should be determined according to the content and instructions of the pesticide, and to be used alternately, preventing the plant from producing resistance. For drugs that are not applied to the immortal, small-scale tests should be made before large area use to prevent drug damage.
After planting, the temperature of the greenhouse can be controlled at about 20 ° C, and the seedling seedlings have increased to the temperature of the seedlings, which can be controlled at 15 ° C to 28 ° C. During this time, we can try to pull the large temperature difference in the suitable temperature range, promote the increase in seedlings, cultivate the growth seedlings, and apply the corresponding fertilizer according to the roots and sphere growth conditions of the seedlings.
