Method for planting suaeda salsa at medium-low-cadmium saline-alkaline land and for extracting plant salt

A technology of Suaeda salsa and saline-alkali land, which is applied in the field of plant salt extraction, can solve the problems of insufficient development and utilization, self-destruction of Suaeda salsa, etc., to increase air permeability and water-holding pores, reduce soil pH, and reduce soil The effect of salt content

Active Publication Date: 2015-10-28
WEIFANG YOURONG IND
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Suaeda salsa is suitable for planting in saline-alkali land and for the production and development of plant salt, but relevant departments have not yet

Method used

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  • Method for planting suaeda salsa at medium-low-cadmium saline-alkaline land and for extracting plant salt
  • Method for planting suaeda salsa at medium-low-cadmium saline-alkaline land and for extracting plant salt
  • Method for planting suaeda salsa at medium-low-cadmium saline-alkaline land and for extracting plant salt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1 A method for planting Suaeda salsa in medium-low cadmium saline-alkali land and extracting plant salt

[0035] (1) Selection of saline-alkali land

[0036] The pH of the soil is 8.6-8.8, the salt content of the soil is 3.6-4.3%, the cadmium content of the soil is 4mg / kg, the air-permeable pores of the soil are 4-5%, the water-holding pores of the soil are 14-15%, and the organic matter content of the soil is It is 4.1-4.2g / kg.

[0037] (2) Improvement of saline-alkali land

[0038] Apply soil amendments to improve saline-alkali land.

[0039] The mass ratio of each component of the improver is: 88-92 parts of desulfurized gypsum, 15-18 parts of fulvic acid, 1-3 parts of straw,

[0040] 2-6 parts of medical stone, 1-3 parts of bagasse, 3-6 parts of fly ash, 3-8 parts of bean cake, 2-3 parts of hawthorn powder, 0.5-0.8 parts of water retaining agent, ammonium lauryl alcohol ethoxylate 0.6-0.9 parts, 10-16 parts of starch-acrylonitrile, 15-18 parts of ho...

Embodiment 2

[0080] Example 2 Univariate analysis of interplanting ratio of Amaranthus retroflexus and Elymus chinensis

[0081] Adopt the method of the selection of saline-alkali land in embodiment 1, saline-alkali land improvement, cadmium adsorption process in soil, change the interplanting ratio of Amaranthus retroflexus and Elymus chinensis, keep the planting density of Amaranthus retroflexus and Elymus reincarnation as 10 * 40 cm, see Table 1.

[0082] Table 1 Univariate analysis of interplanting ratio of Amaranthus retroflexus and Elymus chinensis

[0083]

[0084] The interplanting ratio is 4:3, that is, for every 4 rows of Amaranthus retroflexus, 3 rows of Elymus reintroduced should be planted;

[0085] The rest of the interspecies ratios follow the above explanations.

Embodiment 10

[0086] Example 10 Univariate Analysis of Planting Density of Amaranth and Elymus

[0087] Adopt the selection of saline-alkali land in embodiment 1, saline-alkali land improvement, the method for the cadmium adsorption treatment in soil, change the planting density of Amaranthus retroflexus and Elymus chinensis, keep the interplanting ratio of Amaranthus retroflexus and Elymus reincarnation as 4:1 , see Table 2.

[0088] Table 2 Univariate analysis of planting density of Amaranthus retroflexus and Elymus chinensis

[0089]

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Abstract

The invention discloses a method for planting suaeda salsa at a medium-low-cadmium saline-alkaline land and for extracting plant salt. The method comprises the steps of saline-alkaline land selection, saline-alkaline land improvement, soil cadmium adsorption treatment, and plant salt extraction. According to the soil cadmium adsorption treatment step, amaranthus retroflexus and elymus dahuricus are inter-planted and used for adsorbing cadmium in soil, wherein a preferable inter-planting ratio of amaranthus retroflexus and elymus dahuricus is 4:1, and a planting density is preferably 10*40cm. In the plant salt provided by the invention, cadmium content is reduced to 0.002mg/kg, sodium chloride content is 39%, potassium chloride content is 12%, Mg content is 4%, Ca content is 8%, and Fe content is 750mg/kg. With the method, a problem of excessively high cadmium content in plant salt extracted from suaeda salsa planted in the medium-low-cadmium saline-alkaline land is effectively solved.

Description

technical field [0001] The invention relates to a method for extracting plant salt, in particular to a method for planting Suaeda salsa in saline-alkali land with medium and low cadmium and extracting plant salt, which belongs to the field of saline-alkali land transformation and comprehensive utilization. Background technique [0002] Nowadays, with the continuous deepening of research on the development of wild plant resources, people have gradually discovered that Suaeda salsa is a high-quality vegetable, economic crop and plant resource with medical and health care value. Suaeda salsa is one of the herbal plants with the highest salt content in the world. It has high total salt content. In addition to fat and protein, it is also rich in minerals, trace elements and vitamins, many of which are higher than those of spirulina and Suaeda salsa. The vitamin C content in rice is higher than or equivalent to that of ordinary vegetables; the vitamin B2 content is 5 to 8 times th...

Claims

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Application Information

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IPC IPC(8): A01G1/00A23L1/237C09K17/40C09K101/00C09K109/00
CPCA01G22/00C09K17/40C09K2101/00C09K2109/00
Inventor 王胜
Owner WEIFANG YOURONG IND
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