Concentrated nutrient solution for leafy vegetable soilless cultivation suitable for plant factory

Abstract

The invention relates to a concentrated nutrient solution for leafy vegetable soilless cultivation suitable for a plant factory. The concentrated nutrient solution is characterized by comprising the following components: 360-480mg/L of calcium nitrate tetrahydrate, 380-420mg/L of potassium nitrate, 30-80mg/L of ammonium dihydrogen phosphate, 210-260mg/L of magnesium sulfate heptahydrate, 2.5-3mg/L of boric acid, 1.4-1.6mg/L of manganese sulfate monohydrate, 0.2-0.25mg/L of heptahydrate, 0.05-0.1mg/L of copper sulfate pentahydrate, 0.01-0.03mg/L of ammonium molybdate tetrahydrate, 10-40mg/L of ferric arsenate monosodium edathamil, 0.01-0.1ml/L of phosphoric acid, 0.5-3ml/L of compound amino acid and 1-10ml/L of molasses fermentation fluid, wherein the brix of the molasses fermentation fluid is 64-70; the humic acid content of the molasses fermentation fluid is 45-50g/L; the content of the amino acid is 40-50g/L; and the content of the amino acid in the compound amino acid is 45%-50%. According to the concentrated nutrient solution for leafy vegetable soilless cultivation suitable for the plant factory, the problems that the nutrient solution is poor in stability and the soilless cultivated vegetables are low in mouthfeel and quality are solved.

Description

technical field [0001] The invention relates to a soilless cultivation nutrient solution, in particular to a concentrated nutrient solution suitable for the soilless cultivation of leafy vegetables in plant factories. Background technique [0002] Common soilless culture nutrient solutions have the following disadvantages: high water quality requirements during preparation; chemical composition is unstable during use, pH and EC are easy to change, frequent testing and calibration are required, cumbersome to use, and high skill requirements for planters; composition Mainly inorganic substances, easy to produce nitrate; vegetables have poor taste, soluble sugar and vitamin nutrients are low. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art, provide a concentrated nutrient solution suitable for soilless cultivation of leaf vegetables in plant factories, and solve the problems of poor stability of the nutr...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art, provide a concentrated nutrient solution suitable for soilless cul