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

A technology for saline-alkali land and seedlings, applied in the field of gardening, can solve the problems of inability to reasonably allocate tree species, poor application effect of seedlings, lack of objective evaluation, etc., and achieve the effects of simple and rapid determination of salt tolerance, good greening effect and high accuracy

Inactive Publication Date: 2016-01-27
JIANGSU ACAD OF AGRI SCI
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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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  • Method for testing salt tolerance of greening nursery stock in saline land
  • Method for testing salt tolerance of greening nursery stock in saline land
  • Method for testing salt tolerance of greening nursery stock in saline land

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Embodiment Construction

[0025] The present invention is further illustrated by the embodiment of the method for measuring the salt tolerance of greening seedlings in saline-alkali land below.

[0026] 1. Plot selection and preparation

[0027] In the coastal saline-alkali land of Nantong City, Jiangsu Province, different plots with soil salinity in the range of 0‰ to 10‰ were pre-selected; then the distribution of soil salinity in these plots was investigated comprehensively, and the soil salinity was selected as follows: 0-2‰, 2-4‰, 4-6‰, 6-8‰, 8-10‰ five 3-meter-wide and 15-meter-long test areas, then leveled, weeded, and drainage ditches were dug around. Make sure that the test area is well drained and ready for use.

[0028] The survey and measurement method of soil salinity is as follows: in the pre-selected plots, the measurement points are selected at intervals of 50cm in a checkerboard pattern, and the conductivity values ​​of the 5cm, 15cm, and 25cm soil layers at each point are measured wi...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G7/06A01G17/00G01N27/04
CPCA01G7/06A01G17/005G01N27/041
Inventor 郭文琦张培通李春宏殷剑美韩晓勇王立
Owner JIANGSU ACAD OF AGRI SCI
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