Method for testing salt tolerance of greening nursery stock in saline land

Abstract

The invention discloses a method for testing salt tolerance of greening nursery stock in saline land. The method belongs to the field of garden technology. The method comprises the steps of selecting annual nursery stock with uniform and consistent growth, performing rooting processing, planting the annual nursery stock in a nursery stock planting bag, and transplanting the nursery stock to saline land in which salt content of the soil changes in a gradient manner after the nursery stock in the planting bag survives; according to the survival condition and salt disaster condition of the nursery stock along with salt content increase of the soil, selecting and determining single nursery stock plant for determining and measuring the salt tolerance of the nursery stock, and investigating the salt content of the root-area soil of the selected single nursery stock plant, thereby determining the salt tolerance of the nursery stock; utilizing the least number of the salt tolerance of nursery stock measured in different seasons as the highest soil salt content of the nursery stock for planting in the saline land; and finally selecting and configuring the greening nursery stock according to the actual soil salt content of the saline land.

Description

technical field [0001] The invention relates to "a method for measuring the salt tolerance of green seedlings in saline-alkali land", which belongs to the technical field of gardening. Background technique [0002] The planting of seedlings in saline-alkali land is difficult to survive due to the influence of soil salinity. Selecting suitable salt-tolerant seedlings for planting is the basic work of seedling production and greening in saline-alkali land, and a reasonable selection method of seedlings is the prerequisite for correct selection of seedlings. At present, in the greening practice of saline-alkali land, most of the selection of seedling species comes from the actual planting experience in saline-alkali land. There is a lack of objective evaluation of the salinity of the soil suitable for planting seedlings in specific areas, and it is impossible to rationally allocate tree species according to the actual salinity of saline-alkali land. The survival rate of seedlin...

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Problems solved by technology

At present, in the greening practice of saline-alkali land, most of the selection of seedling species comes from the actual planting experience in saline-alkali land. There is a lack of objective evaluation of the salinity of the soil suitable for planting seedlings in specific areas, and it is impossible to rationally allocate tree species according to the actual salinity of saline-alkali land. The survival rate of seedlings is low; while the existing methods for identifying salt tolerance of seedlings are mainly to compare and identify the salt tolerance of seedlings on the basis of controlled environment or short-term test results, the effect of the identified seedlings in saline land greening is poor, and cumbersome operation

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