Iodine-containing selenium-rich lettuce nutrient solution

Abstract

The invention discloses an iodine-containing selenium-rich lettuce nutrient solution. The iodine-containing selenium-rich lettuce nutrient solution is characterized by comprising the following raw material components in parts by weight: 6-8 parts of potassium borate, 10-12 parts of urea, 6-8 parts of ammonium nitrate, 5-7 parts of magnesium sulfate, 2-4 parts of sodium hydrogen phosphate, 3-5 parts of sodium benzoate, 0.6-0.8 part of an iodine-containing inorganic substance, 0.8-1.2 parts of sodium selenite, 2-4 parts of ferric chloride, 0.5-0.7 part of trace elements, 3-5 parts of folic acid and 4-6 parts of asparagines, wherein the trace elements provide essential ingredients for the growth of lettuce; potassium borate can supplement a certain potassium fertilizer content, enhance the stress resistance of lettuce and prevent new leaves of lettuce from whitening; sodium selenite effectively improves the selenium content of lettuce; the iodine-containing inorganic substance can effectively improve the iodine content of lettuce. The nutrient solution provided by the invention can improve the soil fertility and prevent soil hardening, avoids environmental pollution after being applied and can accelerate the growth by 5-6%.

Description

technical field [0001] The invention belongs to the technical field of plant nutrient solutions, in particular to an iodine-containing and selenium-enriched lettuce nutrient solution. Background technique [0002] Lettuce is a very common edible vegetable. People in China, Japan and other countries often eat it after being cooked. Lettuce can be divided into leaf and stem. Lettuce stems and leaves contain lettuce, which has a bitter taste and a strong bitter taste under high temperature and drought. It can enhance gastric juice, stimulate digestion, increase appetite, and has analgesic and hypnotic effects. [0003] After planting, it is necessary to increase the supply of nitrogen and phosphorus fertilizers, and at the same time control the water to prevent the excessive growth of the outer leaves. The lettuce is topdressed 3 times throughout the growth period. About 15 days after the first seedling slowing down, apply 15 kg of ammonium sulfate or 12 kg of urea per 667 sq...

AI Technical Summary

Problems solved by technology

[0005] At present, most of the plant nutrient solutions sold on the market are extracts prepared from chemical fertilizers. The nutrient solution has low purity or contains harmful substances. Long-term use will cause yellowing or death, etc., and the effect is not good.