An extraction method for low-sodium chloride and high-glutamic acid plant-salt from moderate salinization suaeda salsa

Abstract

The present invention provides an extraction method for low-sodium chloride and high-glutamic acid plant-salt from moderate salinization suaeda salsa, and includes suaeda salsa cultivation and plant-salt extraction; the plant-salt extraction comprises washing and subcritical liquid ammonia extracting. The suaeda salsa is high in emergence rate and transplanting survival rate; in mid-October, the suaeda salsa has a plant density of 500-510 plants / m2, an average biomass of 980-1100 g / m2 and a cover degree of 96-97%; the method can effectively improve saline-alkali soil of planting areas, reduce soil conductivity, and reduce soil salinity; the content of sodium chloride in the prepared plant-salt is 22.7-22.9% and the content of potassium chloride in the prepared plant-salt is 13.3-13.6% the prepared plant-salt has balanced nutrition indexes and significantly increased contents of aspartic acid, arginine, lysine, glutamic acid, glycine.

Description

technical field [0001] The invention relates to a method for extracting plant salt, in particular to a method for extracting medium-salinized Suaeda salsa low-sodium and high-amino acid plant salt, and belongs to the field of saline-alkali land transformation and comprehensive utilization. Background technique [0002] The prior art involves the artificial cultivation of salt-tolerant plants in saline-alkali land, but it is mainly used for agricultural utilization in saline-alkali environment, with the main purpose of harvesting vegetable oil and other products, which is effective for improving saline-alkali land, and the process of extracting plant salt is immature . Planting techniques such as soil preparation and sowing management adopted in the prior art have the following disadvantages: 1. The seeds are easily blown away by the wind, which affects the establishment of vegetation; affect seed growth. [0003] The method for extracting plant salt from Suaeda salsa in th...

AI Technical Summary

Problems solved by technology

[0002] The prior art involves the artificial cultivation of salt-tolerant plants in saline-alkali land, but it is mainly used for agricultural utilization in saline-alkali environment, with the main purpose of harvesting vegetable oil and other products, which is effective for improving saline-alkali land, and the process of extracting plant salt is immature

Planting techniques such as soil preparation and sowing management adopted in the prior art have the following disadvantages: 1. The seeds are easily blown away by the wind, which affects the establishment of vegetation; affect the growth of seeds

[0003] The method for extracting plant salt from Suaeda salsa in the prior art has simple process, low plant salt yield and many impurities, which cannot meet people's requirements for plant salt nutrition, safety and health

[0004] There are following deficiencies in the existing technology of planting Suaeda salsa and extracting plant salt from Suaeda salsa: the soil conductivity of saline-alkali land is high, and the salinity is high; when Suaeda salsa is planted, the transplanting survival rate is low; low in amino acids