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Water-culture planting method for selenium-enriched lettuce

A planting method and technology of lettuce, applied in botany equipment and methods, horticultural methods, planting substrates, etc., can solve the problems of lettuce chemical residues, lettuce elements exceeding the standard, and continuous planting, etc., to achieve well-developed root system, simple method, and seedling emergence neat effect

Inactive Publication Date: 2018-04-13
GUILIN HAOXIN TECH SERVICE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Since lettuce is mostly eaten raw, it is required that the lettuce must be clean and free of pesticide residues. However, most of the existing lettuce is planted on land, and fertilizers are needed during the planting process, and some chemicals are needed to prevent the occurrence of pests and diseases. This leads to chemical residues on the lettuce, and some substances remaining in the soil may also cause some elements in the lettuce to exceed the standard; and due to the limitation of temperature and other conditions, the traditional lettuce planting can only be planted for one season a year and cannot be planted continuously

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0033] A hydroponic planting method of selenium-enriched lettuce, comprising the following steps:

[0034] Step 1. Use infrared rays to irradiate the lettuce seeds for 30 minutes, then put the lettuce seeds into the soaking solution for 10 hours and soak for 10 hours. The soaking solution is composed of 0.02% H 3 BO 3 solution and KNO with a mass fraction of 4% 3 The solution is mixed according to the mass ratio of 1:1;

[0035] Step 2: Place several sterilized sponge cubes with a side length of 2 cm on the seedling tray, spread the lettuce seeds obtained in step 1 on the surface of the sponge, so that there are 3 lettuce seeds on the surface of each sponge , then add water to the seedling tray until the sponge is completely soaked, place the seedling tray in a cool place, control the room temperature at 17°C, and spray water on the surface of the sponge twice a day with clean water;

[0036] After the seeds obtained in step 3 and step 2 grow true leaves, the seedlings are ...

example 2

[0047] A hydroponic planting method of selenium-enriched lettuce, comprising the following steps:

[0048] Step 1, use infrared rays to irradiate the lettuce seeds for 45 minutes, then put the lettuce seeds into the soaking solution for 11 hours, and the soaking solution is composed of 0.02% H 3 BO 3 solution and KNO with a mass fraction of 4% 3 The solution is mixed according to the mass ratio of 1:1;

[0049] Step 2: Place several sterilized sponge cubes with a side length of 3 cm flat on the seedling tray, spread the lettuce seeds obtained in step 1 on the surface of the sponge, so that there are 4 lettuce seeds on the surface of each sponge , then add water to the seedling tray until the sponge is completely soaked, place the seedling tray in a cool place, control the room temperature at 20°C, and spray water on the surface of the sponge 3 times a day with clean water;

[0050] After the seeds obtained in step 3 and step 2 grow true leaves, the seedlings are thinned so ...

example 3

[0061] A hydroponic planting method of selenium-enriched lettuce, comprising the following steps:

[0062] Step 1, use infrared rays to irradiate the lettuce seeds for 60 minutes, then put the lettuce seeds into the soaking solution for 12 hours, and the soaking solution is composed of 0.02% H 3 BO 3 solution and KNO with a mass fraction of 4% 3 The solution is mixed according to the mass ratio of 1:1;

[0063] Step 2: Place several sterilized sponge cubes with a side length of 3 cm on the seedling tray, spread the lettuce seeds obtained in step 1 on the surface of the sponge, so that there are 5 lettuce seeds on the surface of each sponge , then add water to the seedling tray until the sponge is completely soaked, place the seedling tray in a cool place, control the room temperature at 22°C, and spray water on the surface of the sponge 3 times a day with clean water;

[0064] After the seeds obtained in step 3 and step 2 grow true leaves, the seedlings are thinned so that ...

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Abstract

The invention discloses a water-culture planting method for selenium-enriched lettuce. The method comprises the following steps: step 1, pretreating lettuce seeds; step 2, spreading the lettuce seedsobtained in the step 1 at the surface of a sponge cubic block; step 3, after true leaves grow from the seeds obtained in the step 2, thinning seedlings, and adding a first selenium-enriched nutrient solution; step 4, when 2-3 true leaves grow on the seedlings, transplanting the seedlings into a first selenium-enriched nutrient solution, and performing cultivation; and step 5, when 4-5 true leavesgrow on the seedlings, transplanting the seedlings into a second nutrient solution, and performing cultivation. According to the water-culture planting method for the selenium-enriched lettuce provided by the invention, the growth cycle of the lettuce is short, and the obtained finished product has no pollution or residues.

Description

technical field [0001] The invention relates to a planting method of lettuce. More specifically, the present invention relates to a hydroponic planting method of selenium-enriched lettuce. Background technique [0002] Lettuce, commonly known as leaf lettuce, also known as goose vegetable, star vegetable, lettuce, belongs to the genus Lactuca of Compositae. It is an annual or biennial herb crop. The leaves are obovate and densely formed into cabbage-like leaf balls. It can be eaten raw, crisp, tender and refreshing, and slightly sweet. Lettuce has a long history of being introduced into China. It is cultivated more in the southeast coast, especially in the suburbs of big cities and in Guangdong and Guangxi. In recent years, the cultivation area has expanded rapidly, and lettuce has also entered the tables of ordinary people from hotels and restaurants. [0003] Selenium is an essential trace element for the human body. The Chinese Nutrition Society has also listed seleniu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G31/00A01G24/10A01G24/30A01G7/04A01C1/00C05G3/00
CPCA01C1/00A01G7/04A01G31/00C05B1/02C05G3/00C05G5/20C05B7/00C05B17/00C05C1/00C05C3/00C05C11/00C05D1/02C05D9/02C05F5/002C05F17/00Y02P60/14
Inventor 钟传新阳艳华
Owner GUILIN HAOXIN TECH SERVICE
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