Seedling cultivation method for strengthening growth vigor of plants by supplementing light

Abstract

The invention particularly relates to a seedling cultivation method for strengthening growth vigor of plants by supplementing light. The method comprises steps as follows: step one, seed treatment: seeds are soaked in tap water or Vitacat, and seed germination is promoted; step two, sowing: a sponge block is put in a nursery seedling plate and pressed uniformly for sufficient water absorption, and the soaked seeds are put in the sponge block; step three, management before germination: the nursery seedling plate is put in a dark and lightless environment, water is sprayed to the nursery seedling plate every day, and the nursery seedling plate is kept moist until the seeds germinate; step four, management after germination: after germination, the nursery seedling plate is placed under LED light for light supplementing, and the LED light is obtained through an LED light source with an adjustable spectrum; when the seeds just germinate, the ratio of red light to blue light of the LED light source is adjusted to be 3:1, and the light supplementing intensity is adjusted to 3,000 lux; after cotyledon is expanded, the ratio of the red light to yellow light of the LED light source is adjusted to be 1:2, and the light supplementing intensity is adjusted to 13,000 lux. The light intensity and the spectrum are adjusted according to different light required by seedlings in different growth stages, the growth vigor is strengthened, and the seedling cultivation time is shortened.

Description

technical field [0001] The invention belongs to the field of agricultural planting, and in particular relates to a seedling raising method for enhancing plant growth by supplementing light. Background technique [0002] There are many ways to raise plant seedlings. At present, most of the plant factories adopt the method of substrate seedling raising or sponge block seedling raising. Although the breeding seedlings of the matrix seedling raising method are strong, there are many serious defects, which seriously restrict the application. For example, after sowing, the depth of the artificial covering matrix is ​​not uniform, and the thickness of the mechanized covering soil is uniform, but the cost is too high, which is not suitable for the current overall scale. Plant factory; the seedlings in the substrate nursery have to wash the roots before they can be hydroponics in the later stage. The process is cumbersome and will cause damage to the root system of the seedlings; the...

AI Technical Summary

Problems solved by technology

Although the breeding seedlings of the matrix seedling raising method are strong, there are many serious defects, which seriously restrict the application. For example, after sowing, the depth of the artificial covering matrix is ​​not uniform, and the thickness of the mechanized covering soil is uniform, but the cost is too high, which is not suitable for the current overall scale. Plant factory; the seedlings in the substrate nursery have to wash the roots before they can be hydroponics in the later stage. The process is cumbersome and will cause damage to the root system of the seedlings; the substrate in the substrate nursery will breed mosquitoes, pollute the environment in the plant factory, and easily Causes blockage of the hydroponic circulation system; substrate seedling cultivation cannot meet people's requirements for clean and clean production

[0003] For the sponge seedlings commonly used in plant factories at present, there is no standardized seedling raising operation method in the prior art, resulting in uneven quality of seedlings bred by various plant factories, and the quality of seedlings is generally poor.

[0004] Therefore, the market is in urgent need of a standardized sponge seedling operation method to solve the problems of excessive seedling growth, weak growth and underdeveloped root system in the general sponge seedling cultivation process.