Hydroponic vegetable nutrient solution and preparation method and use method thereof

Abstract

The invention discloses a hydroponic vegetable nutrient solution. The hydroponic vegetable nutrient solution comprises a fertilizer A, a fertilizer B and a fertilizer C, wherein the fertilizer A comprises 0.1-0.5 mol / L ammonium nitrate, 0.2-0.8 mol / L calcium nitrate and 0.5-1.0 mol / L potassium nitrate; the fertilizer B comprises 0.2-0.8 mol / L potassium sulfate, 0.1-0.6 mol / L magnesium sulfate and 0.1-1.0 mol / L monopotassium phosphate; the fertilizer C comprises 50-1,000 mmol / L chelated iron, 50-80 mmol / L cupric sulfate, 30-80 mmol / L zinc sulfate, 50-200 mmol / L manganese sulfate, 100-300 mmol / L boric acid, 10-50 mmol / L ammonium molybdate and 20-100 mmol / L cytex. The prepared hydroponic vegetable nutrient solution is balanced in nutrition and high in crop absorption and utilization ratio, can effectively promote crop growth and development, improves the crop yield and quality, and is good in stability and strong in buffering capability.

Description

technical field [0001] The invention belongs to the technical field of soilless cultivation, and relates to a hydroponic vegetable nutrient solution, a preparation method and a use method thereof. Background technique [0002] Soilless cultivation uses light materials such as peat or forest leaf humus and expanded vermiculite as the seedling substrate to fix the plants, allowing the plant roots to directly contact the nutrient solution, and adopts the modern seedling technology of mechanized precision seeding for one-time seedling formation. In the middle of the 19th century, Knop and others invented this method, and began to apply this technology to agricultural production in the 1930s. In the 21st century, people have further improved the technology, making the development of soilless cultivation. In soilless culture, artificially prepared nutrient solution is used to supply the needs of plant mineral nutrition. It is a cultivation technique that uses nutrient solution co...

AI Technical Summary

Problems solved by technology

[0004] The key to the success of hydroponics lies in the preparation and management of the nutrient solution. The nutrient solution currently used for vegetable hydroponics has problems such as complex ratios of nutrient solutions for different vegetables, and the nutrient solution is prone to algae and rapid spread of bacteria when exposed to light.