Taxodium Zhongshanha container seedling and field integrated cultivation method

Abstract

The invention discloses a taxodium Zhongshanha container seedling and field integrated cultivation method, and belongs to the technical field of taxodium Zhongshanha cultivation. The method comprises the following steps: selecting 1-year-old taxodium zhongshanha cutting seedlings, after classification, planting the seedlings in a cutting bed temporarily in time, planting container seedlings while taking the container seedlings during field planting, and conducting watering in time after planting; performing deep ploughing on a clayed soil area before winter, performing leveling and bedding in early spring of the next year, and directly performing field improvement and bedding on a sandy soil area before operation in early spring; carrying out field ditching and shallow burying after the container seedlings are planted; performing spray irrigation on shallowly-buried container seedlings, manually pulling out weeds in the container in time after the seedlings survive, and pruning lateral branches and competitive branches in the growing period; and finally outplanting the seedlings in the form of container seedlings. Through two technical links of container planting and field shallow burying management and protection, the advantages of two cultivation methods of container seedling cultivation and field cultivation are combined, and the method has the advantages that cultivation conditions are controllable, the survival rate of seedlings after field planting is high, the growth vigor is consistent, and seedling outplanting is not limited by seasons.

Description

Technical field [0001] The present invention belongs to the field of cultivating technology in Zhongshan, which is specifically involved in the cultivation of a medium-sized urine veneer seedlings and a field cultivation. Background technique [0002] Zhongshan is collectively referred to as the elegance of the sunset-sunset, the Chinese Academy of Sciences, China Academy of Sciences, from 1973, to the introduction and hybrid breeding work of falling feathers of the fall in 1973. So far, there is a national plant new variety of national plants. 10 national and provincial forests. "Zhongshan 302" and "Zhongshan 401" promotion project were selected by the State Forestry Department as one of the 100 forestry science and technology promotion results in 1997. Zhongshan fir has the advantages of growing fast, water resistant, anti-salt, good material, and beautiful landscape, there is a broad application prospect in the lake wetland, water network, beach and plain greening afforestatio...

AI Technical Summary

Problems solved by technology

The container seedling cultivation method is adopted, and the prepared substrate is used. The planting and maintenance process is easy to control, and a high transplant survival rate can be obtained. However, the growth of container seedlings is limited by factors such as container specifications, substrate volume, and facility conditions. Substrate temperature, Conditions such as moisture and air humidity are greatly affected by the environment. During the production process, sudden dryness and humidity or rapid temperature changes will have an adverse effect on the growth of seedlings. Improper management or technical parameters of facilities are not up to standard, etc., will cause Zhongshan fir seedlings to grow. In the case of poor growth such as growth stagnation and frailty, it is usually difficult to obtain the characteristics of fast growth and robust growth after survival of field-cultivated seedlings. Container seedling cultivation has higher requirements for facility construction and maintenance refinement

The field planting method is used for cultivation, which has high requirements for land consolidation, soil quality and planting management and protection technology. Since the root system of the 1-year-old cutting seedlings of Zhongshan fir is weak, it is affected by the level of operation and refinement of technical links such as soil consolidation, planting, and water management. Influenced by conditions, the survival rate of seedlings is generally not high, and the slow seedling period is long

In addition, Zhongshan fir seedlings are weakly competitive with weeds and are more sensitive to chemical agents. Weed control has always been a technical difficulty in the field planting, management and protection of Zhongshan fir seedlings. During the production process, especially when the cultivation area is large, once the land Insufficient preparations for reorganization, untimely irrigation and weeding and other field operation techniques are not up to standard, and it is very easy to reduce the survival rate of cutting seedlings and cause huge losses. According to the survey, the survival rate of cutting seedlings planted in the field is usually only 60%-70%. about

For the seedlings planted in the field, the suitable time to emerge from the nursery is limited to after the leaves fall and before germination in early spring. The excavation of soil balls requires certain professional skills, the cost of excavation is high, and it is limited by seasons