Nutrient solution suitable for deep-flow hydroponic lettuce and hydroponic method

A deep-water flow hydroponics, nutrient solution technology, applied in fertilization methods, botanical equipment and methods, cultivation and other directions, can solve the problems of containing harmful substances, leggy, high morbidity, shorten the growth cycle, prevent iron deficiency, Growing effect

CN110183261AInactive Publication Date: 2019-08-30潍坊市华以农业科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2019-08-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a nutrient solution suitable for deep-flow hydroponic lettuce and a hydroponic method. The pH value of the nutrient solution suitable for deep-flow hydroponic lettuce is 4.4-6.5, and the nutrient solution comprises a liquid A and a liquid B. In the formula, a plurality of nitrogen forms including nitrate nitrogen and ammonium nitrogen are contained, and can be absorbed and utilized by lettuce root systems. In addition, the utilization rate of contained EDDHA chelated iron is high relative to EDTA-Fe, so that absorption of iron elements by capillary roots, which exists inthe nutrient solution for a long time, of the hydroponic leaf vegetables can be facilitated, and meanwhile, iron deficiency can be effectively prevented. According to the nutrient solution disclosedby the invention, absorption by the capillary roots can be promoted, vitality of the roots can be increased, the growth period of the lettuce can be shortened, and the content of soluble solids in leaves of the hydroponic lettuce is increased by at least 7.3%.
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Description

technical field

[0001] The invention belongs to the field of hydroponic vegetables, and more specifically relates to a nutrient solution formula and a hydroponic method suitable for deep liquid flow hydroponic lettuce.

[0002] technical background

[0003] For soilless cultivation, the nutrient solution is especially important. Especially the hydroponic nutrient solution is the top priority. At present, most water-soluble fertilizers on the market are aimed at a variety of vegetables, but in terms of nutrient absorption and growth cycle of vegetables, different varieties of vegetables have different nutritional needs.

[0004] Secondly, hydroponics has low requirements on soil. In many places in my country, soil salinization or mountainous areas are not suitable for planting crops due to long-term planting. The emergence of hydroponics can solve this problem and improve the land utilization rate of our country.

[0005] With the development of urbanization level, indoor pl...

Examples

Embodiment 1

[0105] Embodiment 1 A kind of nutrient solution suitable for hydroponic lettuce in deep liquid flow and its preparation method

[0106] A kind of nutrient solution suitable for hydroponic lettuce in deep liquid flow of the present invention comprises A liquid and B liquid, and described A liquid and B liquid comprise following nutrient composition respectively:

[0107] The A liquid includes:

[0108] 3000 parts of potassium nitrate;

[0109] Potassium dihydrogen phosphate 5000 parts;

[0110] 500 parts of magnesium sulfate;

[0111] 150 parts of manganese sulfate;

[0112] 5 parts of borax;

[0113] 10 parts of copper sulfate;

[0114] 10 parts of zinc sulfate;

[0115] 1.5 parts of sodium molybdate.

[0116] Described potassium nitrate: about 13.5% of total nitrogen content, K 2 About 46%;

[0117] The potassium dihydrogen phosphate: KH 2 PO 4 The content is about 98%;

[0118] The magnesium sulfate: the Mg content is about 9.5%, and the S content is about 12.5%;...

Embodiment 2-3

[0148] Embodiment 2-3 A kind of nutrient solution suitable for hydroponic lettuce in deep liquid flow and its preparation method

[0149] Same as Example 1, the difference is that parts by weight are different, specifically:

Embodiment 2

[0151] The A liquid includes:

[0152] 3000 parts of potassium nitrate;

[0153] Potassium dihydrogen phosphate 4000 parts;

[0154] 1000 parts of magnesium sulfate;

[0155] 100 parts of manganese sulfate;

[0156] 10 parts of borax;

[0157] 7 parts of copper sulfate;

[0158] 20 parts of zinc sulfate;

[0159] Sodium molybdate 1 part.

[0160] The B liquid includes:

[0161] 5000 parts of calcium ammonium nitrate;

[0162] EDDHA chelated iron 30 parts;

[0163] Amino acid 5 parts.