Rooting property induction cultivation method for crop seedlings

Abstract

The invention discloses a crop seedling rooting property induction cultivation method which comprises the following steps: S1, carrying out first induction treatment on crop seeds by using a plant growth regulator; s2, uniformly sowing the crop seeds subjected to induction treatment in a container filled with a substrate; s3, thinning after germination of the crop seeds is finished, and reserving a robust seedling in each container; and S4, adding a substrate mixed with an accelerant into the container, and carrying out second induction treatment to obtain rooted crop seedlings. According to the method, twice induction treatment is carried out, the first induction treatment is that seeds are soaked in a plant growth regulator solution in the seed germination stage, the second induction treatment is that an accelerant is adopted to supplement nutrition to roots in the seedling growth stage, and the two induction treatment are matched with the effect of a matrix, so that the seedling growth rate is increased; germination of crop seeds and growth of root systems are promoted to the maximum extent.

Description

Technical Field

[0001] The invention relates to the technical field of crop seedling cultivation, and in particular to a root growth induction cultivation method for crop seedlings. Background Art

[0002] Crops refer to various plants cultivated in agriculture, including food crops and cash crops (oil crops, vegetable crops, flowers, grasses, and trees). Edible crops are one of the basic sources of food for humans.

[0003] In the process of planting crops, seedlings need to be cultivated first. In the process of cultivating seedlings, attention should be paid to the root growth of crop seedlings to facilitate the later transplanting and improve the survival rate of seedlings. At present, when cultivating crop seedlings, the seeds of crops are generally directly placed in growth regulators for soaking, and then buried in organic soil for rooting and germination. Although this achieves the purpose of cultivation, the root system of the crop seedlings is not well developed, which affects the later growth of the seedlings. Therefore, it is necessary to design a method for inducing the root growth of crop seedlings. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a method for inducing the root growth of crop seedlings.

[0005] In order to achieve the above object, the present invention adopts the following technical scheme: a method for inducing root growth of crop seedlings, comprising the following steps:

[0006] S1: The first induction treatment of crop seeds with plant growth regulators;

[0007] S2: Evenly sow the induced crop seeds in a container filled with a substrate;

[0008] S3: After the crop seeds have germinated, thin out the seedlings, leaving one healthy seedling in each container;

[0009] S4: Adding a substrate mixed with a promoter into the container, performing a second induction treatment, and obtaining root-growing crop seedlings.

[0010] As a further description of the above technical solution:

[0011] In step S1, before the first induction treatment, the crop seeds are treated first, and the crop seed treatment includes the following steps:

[0012] Seed disinfection: Soak seeds in 10% trisodium phosphate solution for 10-15 minutes;

[0013] Soaking seeds in warm water: Pour the sterilized seeds into hot water at 55-60℃, with the amount of water being 5-6 times the amount of seeds. Stir and add hot water constantly to heat the seeds evenly. Keep the temperature constant for 15-20 minutes, and continue soaking the seeds when the water temperature drops to 30℃.

[0014] Germination: Wrap the soaked seeds with wet gauze and place them in a pot. Keep the temperature at 25-30℃. Wash the seeds twice a day with warm water to clean the mucus on the seed coat. After washing, spread the seeds out to breathe for 10 minutes. When more than 75% of the seed bud tips are white, the first induction treatment can be carried out.

[0015] As a further description of the above technical solution:

[0016] The germinated seeds are placed in a plant growth regulator for a first induction treatment for 8-12 hours. The plant growth regulator is at least one of indoleacetic acid, naphthylacetic acid, and ethephon.

[0017] As a further description of the above technical solution:

[0018] The matrix formula in step S2 is peat soil, organic fertilizer, perlite and vermiculite, and the mass ratio is (3-5): (4-6): (1-2): (2-3).

[0019] As a further description of the above technical solution:

[0020] After the matrix is ​​mixed, 40% formalin solution is sprayed on the matrix for disinfection, and the matrix is ​​placed in a container after disinfection.

[0021] As a further description of the above technical solution:

[0022] The promoter is composed of indoleacetic acid, nitrogen fertilizer, phosphate fertilizer and pure water. The specific preparation method is as follows: according to weight parts, 20-30 parts of indoleacetic acid, 10-20 parts of nitrogen fertilizer, 5-15 parts of phosphate fertilizer are added to 80-130 parts of pure water in sequence, and then stirred thoroughly.

[0023] The present invention has the following beneficial effects:

[0024] 1. Compared with the prior art, the method for inducing the root growth of crop seedlings is carried out through two induction treatments. The first induction treatment is to soak the seeds with a plant growth regulator solution during the seed germination stage, and the second induction treatment is to supplement the roots with a promoter during the seedling growth stage. The two induction treatments are combined with the effect of the matrix to promote the germination of crop seeds and the growth of the root system to the greatest extent.

[0025] 2. Compared with the prior art, the root growth induction cultivation method of this crop seedling adopts peat soil, organic fertilizer, perlite and vermiculite as the matrix, and its porosity and air-water ratio are moderate, and it has the function of retaining fertilizer and water, which is suitable for the development of the root system of crops. DETAILED DESCRIPTION

[0026] Embodiment 1,

[0027] A method for inducing root growth in crop seedlings comprises the following steps:

[0028] S1: Perform the first induction treatment on the germinated crop seeds, and soak more than 75% of the white seeds in a 30 mg / L indoleacetic acid solution for 8 hours;

[0029] S2: Evenly sow the induced crop seeds in a container filled with a sterilized substrate, wherein the ratio of the substrate is 3 parts of peat soil, 4 parts of organic fertilizer, 1 part of perlite and 2 parts of vermiculite;

[0030] S3: Manual thinning: Thinning is performed after the crop seeds have finished germinating, leaving one healthy seedling in each container;

[0031] S4: After thinning, a substrate mixed with a promoter is added into the container for a second induction treatment to obtain root-growing crop seedlings.

[0032] The substrate mixed with the promoter accounts for 10% of the total substrate. The promoter is composed of indoleacetic acid, nitrogen fertilizer, phosphate fertilizer and pure water. The specific preparation method is as follows: according to the weight parts, 20 parts of indoleacetic acid, 10 parts of nitrogen fertilizer and 5 parts of phosphate fertilizer are added to 80 parts of pure water in sequence and stirred fully. The stirred promoter is sprayed on the substrate and then mixed with the substrate to obtain the substrate mixed with the promoter.

[0033] Embodiment 2:

[0034] A method for inducing root growth in crop seedlings comprises the following steps:

[0035] S1: Perform the first induction treatment on the germinated crop seeds, and soak more than 75% of the white seeds in a 30 mg / L indoleacetic acid solution for 9 hours;

[0036] S2: Evenly sow the induced crop seeds in a container filled with a sterilized substrate, wherein the ratio of the substrate is 4 parts of peat soil, 5 parts of organic fertilizer, 1 part of perlite and 2 parts of vermiculite;

[0037] S3: Manual thinning: Thinning is performed after the crop seeds have finished germinating, leaving one healthy seedling in each container;

[0038] S4: After thinning, a substrate mixed with a promoter is added into the container for a second induction treatment to obtain root-growing crop seedlings.

[0039] The matrix mixed with the accelerator accounts for 15% of the total matrix. The accelerator is composed of indoleacetic acid, nitrogen fertilizer, phosphate fertilizer and pure water. The specific preparation method is as follows: according to the weight parts, 25 parts of indoleacetic acid, 10 parts of nitrogen fertilizer and 8 parts of phosphate fertilizer are added to 90 parts of pure water in sequence and stirred fully. The stirred accelerator is sprayed on the matrix and then mixed with the matrix to obtain the matrix mixed with the accelerator.

[0040] Embodiment 3:

[0041] A method for inducing root growth in crop seedlings comprises the following steps:

[0042] S1: Perform the first induction treatment on the germinated crop seeds, and soak more than 75% of the white seeds in a 30 mg / L indoleacetic acid solution for 10 hours;

[0043] S2: Evenly sow the induced crop seeds in a container filled with a sterilized substrate, wherein the ratio of the substrate is 4 parts of peat soil, 5 parts of organic fertilizer, 2 parts of perlite and 2 parts of vermiculite;

[0044] S3: Manual thinning: Thinning is performed after the crop seeds have finished germinating, leaving one healthy seedling in each container;

[0045] S4: After thinning, a substrate mixed with a promoter is added into the container for a second induction treatment to obtain root-growing crop seedlings.

[0046] The matrix mixed with the accelerator accounts for 15% of the total matrix. The accelerator is composed of indoleacetic acid, nitrogen fertilizer, phosphate fertilizer and pure water. The specific preparation method is as follows: according to the weight parts, 25 parts of indoleacetic acid, 15 parts of nitrogen fertilizer and 10 parts of phosphate fertilizer are added to 100 parts of pure water in sequence and stirred fully. The stirred accelerator is sprayed on the matrix and then mixed with the matrix to obtain the matrix mixed with the accelerator.

[0047] Embodiment 4:

[0048] A method for inducing root growth in crop seedlings comprises the following steps:

[0049] S1: Perform the first induction treatment on the germinated crop seeds, and soak more than 75% of the white seeds in a 30 mg / L indoleacetic acid solution for 11 hours;

[0050] S2: Evenly sow the induced crop seeds in a container filled with a sterilized substrate, wherein the ratio of the substrate is 5 parts of peat soil, 5 parts of organic fertilizer, 1 part of perlite and 2 parts of vermiculite;

[0051] S3: Manual thinning: Thinning is performed after the crop seeds have finished germinating, leaving one healthy seedling in each container;

[0052] S4: After thinning, a substrate mixed with a promoter is added into the container for a second induction treatment to obtain root-growing crop seedlings.

[0053] The substrate mixed with the promoter accounts for 20% of the total substrate. The promoter is composed of indoleacetic acid, nitrogen fertilizer, phosphate fertilizer and pure water. The specific preparation method is as follows: according to the weight parts, 30 parts of indoleacetic acid, 15 parts of nitrogen fertilizer and 15 parts of phosphate fertilizer are added to 100 parts of pure water in sequence and stirred fully. The stirred promoter is sprayed on the substrate and then mixed with the substrate to obtain the substrate mixed with the promoter.

[0054] Comparative Example 1: This comparative example is basically the same as Example 1, except that loess is added into the container as a matrix.

[0055] Comparative Example 2: This comparative example is basically the same as Example 1, except that a plant growth regulator is used instead of a promoter.

[0056] Comparative Example 3: This comparative example is basically the same as Example 1, except that a substrate without an accelerator is added to the container during the secondary fertilization.

[0057] Comparative Example 4: This comparative example is substantially the same as Example 1, except that indoleacetic acid is not added to the accelerator.

[0058] Test experiment: The cultivation method provided by Examples 1-4 and Comparative Examples 1-4 was used for cultivation. After 12 months of sowing, the root growth of the cultivated lemon seedlings was observed. After removing the root matrix, the roots were washed with water. The root images were scanned with WinRHIZO root scanning analyzer, and the root length and root surface area were analyzed and determined with analysis software. The data obtained from Examples 1-4 and Comparative Examples 1-4 were compared with the control group, and the data changes of Examples 1-4 and Comparative Examples 1-4 were recorded. The results are shown in Table 1.

[0059] Table 1

[0060]

[0061] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for inducing root growth in crop seedlings, characterized in that: The following steps are included: S1: The first induction treatment of crop seeds with plant growth regulators; S2: Evenly sow the induced crop seeds in a container filled with a substrate; S3: After the crop seeds have germinated, thin out the seedlings, leaving one healthy seedling in each container; S4: Adding a substrate mixed with a promoter into the container, performing a second induction treatment, and obtaining root-growing crop seedlings.

2. The method for inducing root growth of crop seedlings according to claim 1, characterized in that: In step S1, before the first induction treatment, the crop seeds are treated first, and the crop seed treatment includes the following steps: Seed disinfection: Soak seeds in 10% trisodium phosphate solution for 10-15 minutes; Soaking seeds in warm water: Pour the sterilized seeds into hot water at 55-60℃, with the amount of water being 5-6 times the amount of seeds. Stir and add hot water constantly to heat the seeds evenly. Keep the temperature constant for 15-20 minutes, and continue soaking the seeds when the water temperature drops to 30℃. Germination: Wrap the soaked seeds with wet gauze and place them in a pot. Keep the temperature at 25-30℃. Wash the seeds twice a day with warm water to clean the mucus on the seed coat. After washing, spread the seeds out to breathe for 10 minutes. When more than 75% of the seed bud tips are white, the first induction treatment can be carried out.

3. The method for inducing root growth of crop seedlings according to claim 2, characterized in that: The germinated seeds are placed in a plant growth regulator for a first induction treatment for 8-12 hours. The plant growth regulator is at least one of indoleacetic acid, naphthylacetic acid, and ethephon.

4. The method for inducing root growth of crop seedlings according to claim 1, characterized in that: The matrix formula in step S2 is peat soil, organic fertilizer, perlite and vermiculite, and the mass ratio is (3-5): (4-6): (1-2): (2-3).

5. The method for inducing root growth of crop seedlings according to claim 4, characterized in that: After the matrix is ​​mixed, 40% formalin solution is sprayed on the matrix for disinfection, and the matrix is ​​placed in a container after disinfection.

6. The method for inducing root growth of crop seedlings according to claim 1, characterized in that: The promoter is composed of indoleacetic acid, nitrogen fertilizer, phosphate fertilizer and pure water. The specific preparation method is as follows: according to weight parts, 20-30 parts of indoleacetic acid, 10-20 parts of nitrogen fertilizer, 5-15 parts of phosphate fertilizer are added to 80-130 parts of pure water in sequence, and then stirred thoroughly.

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