Raw soil salt tolerance identification pool and application thereof

Abstract

The invention provides a raw soil salt tolerance identification pool, and belongs to the technical field of plant salt tolerance identification. The raw soil salt tolerance identification pool comprises a pebble layer, a non-woven fabric layer and a salt soil layer in sequence vertically upward from the bottom of the pool; the pebble layer is provided with a plurality of salt discharge and water seepage pipes; and two ends of each salt discharge and water seepage pipe are connected with a polyvinyl chloride (PVC) pipe (water supply and drainage pipe) at the bottom of the pool. According to theraw soil salt tolerance identification pool provided by the invention, by installing the salt discharge and water seepage pipes, irrigation of an identification solution with set concentration can beperformed, and soil salt difference caused by conventional irrigation is significantly reduced, so that the change of the salt content of soil of different depths in the whole raw soil salt toleranceidentification pool is within 0.5%; and an identification result is more accurate, and is closer to a field planting result.

Description

technical field [0001] The invention belongs to the technical field of plant salt tolerance identification, and in particular relates to an original soil salt tolerance identification pool and its application. Background technique [0002] Saline soil is a soil type that is widely distributed on the earth. Due to the high salt content in the soil, it is not conducive to the growth of most plants, resulting in the extremely fragile ecological environment of this soil type area, which has become the main limitation of economic development in this area. one of the factors. Planting salt-tolerant plants is one of the effective ways to improve saline soil. To plant salt-tolerant plants, it is first necessary to clarify the salt-tolerant ability of plants. At present, people mostly use substrate potting, hydroponics or saline-alkali field to identify plants for salt tolerance. In substrate potting and hydroponic methods, due to the large difference between the substrate or hydro...

AI Technical Summary

Problems solved by technology

At present, people mostly use substrate potting, hydroponics or saline-alkali field to identify plants for salt tolerance. In substrate potting and hydroponic methods, due to the large difference between the substrate or hydroponic nutrient solution used and the soil environment in which the plants are actually used, often A phenomenon that causes the threshold of salt tolerance identified by the above method to be inconsistent with the threshold of plant growth in saline soil

The field identification method of saline-alkali land has problems such as uneven distribution of soil salinity and difficulty in finding qualified saline soil, which leads to inaccurate identification

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