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Water culture and planting method for selenium-rich lettuces

A planting method and lettuce technology, which are applied in the directions of botanical equipment and methods, horticultural methods, planting substrates, etc., can solve the problems of low selenium content, the yield and quality of selenium-enriched lettuce cannot meet actual needs, etc., and achieve a short growth cycle. , The effect of increasing the weight of lettuce and easy operation

Inactive Publication Date: 2018-11-06
广东日可威富硒食品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The selenium content of general food is very little at present, and the planting method of existing selenium-enriched lettuce, the output and the quality of the obtained selenium-enriched lettuce can't meet actual demand, therefore, need to develop a kind of can effectively improve lettuce output and selenium element content badly. The planting method of selenium-enriched lettuce solves the problems in the prior art

Method used

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  • Water culture and planting method for selenium-rich lettuces

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Comparison scheme
Effect test

Embodiment 1

[0022] A hydroponic planting method of selenium-enriched lettuce, comprising the following steps:

[0023] (1) Put the traditional Chinese medicine residue, perlite, and vermiculite with a weight ratio of 2:1:1 into the seedling tray, lightly press and flatten the substrate with your hands, pour the vermiculite with water, and spread the lettuce seeds that have been refrigerated and accelerated germination The surface of vermiculite is covered with plastic film;

[0024] (2) Cultivate the seedlings with 1 / 4 dose of the formula nutrient solution until the seedlings have 2 true leaves, fill the planting cup with water seaweed to fix the plants, select strong and disease-free plants, wash the residual matrix of the roots, insert them into the planting cup, Formula nutrient solution is used for planting, and the seedling separation board should cover the entire nutrient solution surface;

[0025] (3) After planting, control the growth temperature at 15-25°C, supplement the light ...

Embodiment 2

[0032] A hydroponic planting method of selenium-enriched lettuce, the formula nutrient solution is: 232 parts of calcium nitrate tetrahydrate, 402 parts of potassium nitrate, 56 parts of ammonium dihydrogen phosphate, 122 parts of magnesium sulfate heptahydrate, ferrous sulfate heptahydrate 12 parts, 18 parts of disodium edetate, 2.5 parts of boric acid, 2.1 parts of manganese sulfate tetrahydrate, 0.21 parts of zinc sulfate heptahydrate, 0.05 parts of copper sulfate pentahydrate, 0.01 parts of ammonium molybdate, 0.00005 parts of sodium selenate, Water to 1000 parts; pH value is 6.1.

[0033] The lettuce variety is head lettuce.

Embodiment 3

[0035] A hydroponic planting method of selenium-enriched lettuce, the formula nutrient solution is: 235 parts of calcium nitrate tetrahydrate, 404 parts of potassium nitrate, 57 parts of ammonium dihydrogen phosphate, 123 parts of magnesium sulfate heptahydrate, ferrous sulfate heptahydrate 14 parts, 18.5 parts of disodium edetate, 2.75 parts of boric acid, 2.15 parts of manganese sulfate tetrahydrate, 0.22 parts of zinc sulfate heptahydrate, 0.06 parts of copper sulfate pentahydrate, 0.02 parts of ammonium molybdate, 0.000052 parts of sodium selenate, Water to 1000 parts; pH value is 6.2.

[0036] The lettuce variety is straight lettuce.

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Abstract

The invention belongs to the technical field of fruit planting, and particularly relates to a water culture and planting method for selenium-rich lettuces. A water culture technology is adopted, a seedling culture substrate is prepared by mixing Chinese medicine residues, perlite and vermiculite according to the ratio of 2: 1: 1, seeds are sown in seedling culture plates, seedlings are inserted inplanting cups, a formula nutrient solution is supplemented for the lettuces in a growth period, growth of buds and absorption to other fertilizer microelements can be accelerated, and thus, the high-yield and high-quality selenium-rich lettuces are obtained. The formula nutrient solution consists of calcium nitrate terahydrate, potassium nitrate, ammonium dihydrogen phosphate, magnesium sulfate heptahydrate, ferrous sulfate heptahydrate, disodium ethylene diamine tetraacetate, boric acid, manganese sulfate tetrahydrate, zinc sulphate heptahydrate, cupric sulfate pentahydrate, ammonium molybdate and sodium selenate; and the pH value is 6.0-6.5.

Description

technical field [0001] The invention relates to the technical field of vegetable planting, in particular to a hydroponic planting method of selenium-enriched lettuce. Background technique [0002] Selenium is an essential nutritional element for animals and humans. Selenium has many functions such as scavenging free radicals in the living body, anti-lipid membrane peroxidation, anti-cancer, anti-aging, enhancing immunity, and antagonizing heavy metal toxicity. The different selenium content in the soil will cause great differences in the selenium content in food in various places. If the selenium content in the soil is below 0.6mg / kg, it belongs to the selenium-deficient soil. 72% of my country's land is selenium-deficient or selenium-deficient soil. Long-term intake Serious selenium-deficient foods will inevitably cause selenium-deficiency diseases. [0003] Lettuce belongs to the genus Lactuca of the family Asteraceae. It is an annual or biennial herb crop, and it is also...

Claims

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Application Information

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IPC IPC(8): A01G31/00A01G24/27A01G24/15A01G7/04C05G3/00
CPCA01G7/045A01G24/15A01G24/27A01G31/00C05B7/00C05G3/00C05G5/23C05C3/00C05C5/02C05C5/04C05D5/00C05D9/02Y02P60/14
Inventor 杨凯
Owner 广东日可威富硒食品有限公司
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