Planting method for preventing copper blight of cunninghamia lanceolata saplings

Abstract

The invention discloses a planting method for preventing copper blight of cunninghamia lanceolata saplings. The planting method comprises the following steps: (1) controlling water and a fertilizer for cunninghamia lanceolata seedlings in a seedling nursery, and spraying a monopotassium phosphate solution; (2) digging holes, sterilizing each hole, then, applying the fertilizer, and then, backfilling the soil; (3) soaking the whole cunninghamia lanceolata seedlings into a disinfectant when the cunninghamia lanceolata seedlings leave from the nursery; (4) planting the cunninghamia lanceolata seedlings after one month since the soil is backfilled; (5) spraying the disinfectant to the cunninghamia lanceolata saplings after the cunninghamia lanceolata seedlings are planted for two months; (6) respectively carrying out weeding and applying the fertilizer once in the year when the cunninghamia lanceolata seedlings are planted; (7) spraying the disinfectant to the cunninghamia lanceolata saplings on March to April in the second year since the cunninghamia lanceolata seedlings are planted; (8) respectively carrying out weeding and applying the fertilizer once in the second year since the cunninghamia lanceolata seedlings are planted; (9), spraying the disinfectant to the cunninghamia lanceolata saplings on March to April in the third year since the cunninghamia lanceolata seedlings areplanted; and (10) applying a compound fertilizer to each of the cunninghamia lanceolata saplings on November to December in the third year since the cunninghamia lanceolata seedlings are planted. If the method is used for planting cunninghamia lanceolata, the occurrence of copper blight of the cunninghamia lanceolata saplings can be effectively prevented, and meanwhile, the treatment cost of the cunninghamia lanceolata saplings can be controlled.

Description

Technical field [0001] The invention belongs to the field of forest tree planting, in particular to a planting method for preventing red blight of fir young trees. Background technique [0002] The incidence characteristics of red blight of Chinese fir saplings. Cunninghamia lanceolata sapling tree blight usually occurs in saplings that are one to three years old. At the beginning of the onset of cedar saplings, the pathogen first invades the young leaves at the top of the lateral branches under the crown, and the young leaves appear to be necrotic at the beginning. Sexual hazel lesions, which spread to the lower part quickly, and then quickly spread to the entire top tip, causing the top to die. Finally, small black spots, namely conidia discs, appeared on the lesions. In severe cases, they spread to the entire plant and cause the entire plant. Withered and died, the dead parts formed black spotted pathogen fruit bodies or black tendril-shaped conidia horns. Some fir saplings ...

AI Technical Summary

Problems solved by technology

The main difference between the prevention and control of red blight of Chinese fir saplings and red blight of fir seedlings is that in the woodland where young fir trees are planted, the planting area is large. high cost

Secondly, the prevention and treatment of red blight of Chinese fir seedlings is mainly by spraying fungicides such as carbendazim, tuzet, Bordeaux mixture, and carbendazim. Due to the large planting area of ​​fir saplings, high altitude and high humidity, The sprayed fungicides are adsorbed on the young fir leaves for a short period of time, so it is difficult to play a long-term role in the prevention and treatment of red blight

Images