Soilless cultivation method capable of reducing nitrate of lettuce leaves

The technology of soilless cultivation and nitrate is applied in the field of soilless cultivation for reducing nitrate of lettuce leaves, can solve the problem of high nitrate content in lettuce, and achieves the effects of simple operation, high economic benefit and enhanced root activity.

Inactive Publication Date: 2015-07-08
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the problem of high nitrate content in lettuce in the prior art, and to provide a soilless cultivation method for reducing nitrate in lettuce leaves

Method used

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  • Soilless cultivation method capable of reducing nitrate of lettuce leaves
  • Soilless cultivation method capable of reducing nitrate of lettuce leaves
  • Soilless cultivation method capable of reducing nitrate of lettuce leaves

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0085] The steps of the soilless cultivation method for reducing lettuce leaf nitrate are as follows:

[0086] 1. Seed soaking and germination

[0087] 1) Soak lettuce seeds in warm water at 55°C for 15 minutes, stirring constantly;

[0088] 2) Wrap the seeds with clean wet gauze and germinate them in an incubator at 28°C for about 1 day. When 80-90% of the seeds open and sprout, sow them in plastic nutrition bowls, and sow 1-2 seeds in each bowl.

[0089] 3) The operation of cherry radish seeds is the same as that of lettuce seeds. The difference is that the cherry radish seeds need to be soaked in clear water for 6-8 hours at 10-30°C to allow the seeds to fully absorb water.

[0090] 2. Seedling cultivation in artificial climate chamber

[0091] 1) Put the plastic nutrient bowl in which the seeds have been sown into an artificial climate box to grow seedlings. During the day, the temperature is controlled at 26°C and the light level is 5, at night the temperature is contr...

Embodiment 2

[0117] The steps of the soilless cultivation method for reducing lettuce leaf nitrate are as follows:

[0118] 1. Soaking seeds and germination

[0119] 1) Soak lettuce seeds in warm water at 55°C for 15 minutes, stirring constantly;

[0120] 2) Wrap the seeds with clean wet gauze and germinate them in an incubator at 28°C for about 1 day. When 80-90% of the seeds open and sprout, sow them in plastic nutrition bowls, and sow 1-2 seeds in each bowl.

[0121] 3) The operation of pea seeds is the same as that of lettuce seeds. The difference is that pea seeds need to be soaked in water at 10-30°C for 20-24 hours and the operation should be performed 15±1 days later to ensure that the two seedlings are transplanted at the same time.

[0122] 2. Seedling cultivation in artificial climate chamber

[0123] 1) Put the plastic nutrient bowl in which the seeds have been sown into an artificial climate box to grow seedlings. During the day, the temperature is controlled at 26°C and th...

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Abstract

The invention discloses a soilless cultivation method capable of reducing nitrate of lettuce leaves, and aims to overcome the problem of the prior art that the content of nitrate of lettuce leaves is higher. The method comprises the following steps: 1, soaking and sprouting seed; 2, seeding in a manual climatic box: 1) positioning a plastic nutrition pot in which the seed is sown in the manual climatic box, the temperature in the daytime is DEG C, the intensity of illumination is 5-6 grade, the temperature at night is 15-20 DEG C, the intensity of illumination is 0 grade, the relative humidity is 70-80% RH; 2) after that the lettuce, pakchoi and cherry radish grows for true leaves for 3 pieces or 4 pieces, the height of the pea seedling is 5-6cm, preparing to transplant seedlings; 3) in order to transplant the crops at the same time, growing seedlings for the lettuce, pakchoi and cherry radish at the same batch, and growing pea seedling after 15 plus / minus 1 days; 3, transplanting seedlings; 4, preparing before fixed planting; 5, fixed planting; 6, setting cultivation environment; 7, adjusting pH and conductivity EC value of the nutrient solution in the aerosol cultivation box; 8, harvesting plants.

Description

technical field [0001] The invention relates to a soilless cultivation method for vegetables, more precisely, the invention relates to a soilless cultivation method for reducing nitrate of lettuce leaves. Background technique [0002] Soilless cultivation is a planting technique that uses nutrient solution or solid substrate plus nutrient solution to cultivate crops without soil. Since the 1970s, my country has begun to apply this technology in production, and the development and application of this technology have achieved good results. As a kind of soilless cultivation, aerosol cultivation is a technology that uses a spray device to atomize the nutrient solution into small droplets and spray it directly to the root system of the plant to provide the water and nutrients needed for plant growth. It has high yield and great benefit. , saving water and fertilizer, and reducing pests and diseases are the trends of future agricultural development. However, since nitrate is usu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G31/00
CPCY02P60/21
Inventor 王琳琳于海业张蕾姚宁宁鲁雪利赵红星付强隋媛媛
Owner JILIN UNIV
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