A method for raising seedlings of red sand seeds

Abstract

The invention discloses a seedling raising method for red sand seeds. The seedling raising method comprises the following steps: preparing a seedling raising matrix; washing and soaking the red sand seeds, and then air-drying them; laying river sand in a seedling raising tray, sowing the soaked red sand seeds on the river sand, and then covering them with a layer of river sand; then placing the seeds in a climate box for germination in darkness; arranging the seedling raising matrix into a seedling bed, sowing the red sand seeds in the seedling raising tray on the seedling bed after the germination is completed, and covering the seeds with a layer of seedling raising matrix, and then carrying out seedling raising management; in the seedling raising method of the invention, by using a specific seed soaking liquid to soak the red sand seeds, the germination of the seeds can be promoted, certain nutrients can be provided to improve the growth of the root system, and a specific germination environment can be used to significantly improve the germination rate of the red sand seeds; in addition, by limiting the seedling raising matrix, sufficient nutrients and a suitable living environment can be better provided for the red sand, and the emergence rate can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of red sand planting, and in particular to a method for raising seedlings of red sand seeds. Background Art

[0002] Reaumuria songarica (Pall.) Maxim. is a small shrub of the genus Reaumuria in the family Tamarix, a prostrate plant; much-branched, old branches are gray-brown, twigs are mostly curved, the bark is gray-white, rough, and longitudinally fissured; the leaves are fleshy, short cylindrical, scaly, often slightly curved, and light gray-blue-green; the flowers are solitary in the leaf axils, with white membranous edges and punctate glands; the petals are white with a slight reddish tint, oblong, and the filaments become widened at the base; the capsule is oblong or fusiform, or triangular-shaped; the seeds are oblong, all covered with dark-brown hairs; the flowering period is July-August, and the fruiting period is August-September.

[0003] Red sand is a thermophilic species, does not require high heat, is extremely drought-resistant, cold-resistant, salt-resistant, and has a long lifespan. There are three ways to propagate red sand: seeds, root splitting, and adventitious roots.

[0004] At present, the germination rate of red sand seeds is directly affected by the temperature during the soaking and constant temperature germination process. However, even at the optimal temperature, the germination rate of seeds is only about 90%. In addition, container seedlings can also be used in the prior art. For example, in the Qinghai wild red sand seed propagation technology, a container sowing and seedling test was conducted on Qinghai wild red sand, but its germination rate was only 57.9%, which was relatively low.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] The object of the present invention is to provide a seedling raising method for red sand seeds, which can improve the germination rate and emergence rate of red sand seeds by limiting the specific process and utilizing a specific seedling raising matrix and a germination process.

[0007] In order to achieve the above-mentioned purpose of the present invention, the following technical solutions are particularly adopted:

[0008] A first aspect of the present invention provides a method for raising seedlings of red sand seeds, the method comprising the following steps:

[0009] (a) Preparation of seedling medium:

[0010] According to weight parts, 100-150 parts of leaf mold, 30-40 parts of river sand, 20-25 parts of decomposed organic fertilizer and 5-8 parts of wheat bran are mixed to obtain a seedling medium;

[0011] (b) Seed soaking:

[0012] The red sand seeds are cleaned, soaked, and then dried, wherein the soaking solution comprises the following components in parts by weight:

[0013] 4-6 parts of potassium dihydrogen phosphate, 2-4 parts of calcium chloride, 1-2 parts of potassium nitrate, 0.2-0.5 parts of gibberellin and 200-500 parts of water;

[0014] (c) Seeding:

[0015] Spread river sand in the seedling tray, sow the soaked red sand seeds on the river sand, and then cover with a layer of river sand; then place in a climate box under dark conditions for germination;

[0016] (d) Seedling cultivation:

[0017] Arrange the seedling medium into a seedling bed. After the germination is completed, sow the red sand seeds in the seedling tray on the seedling bed and cover it with a layer of seedling medium, and then carry out seedling management.

[0018] Preferably, in step (a), the decomposed organic fertilizer is decomposed sheep manure.

[0019] Preferably, in step (b), the soaking time is 24 to 36 hours and the temperature is room temperature.

[0020] Preferably, in step (c), the river sand is laid to a thickness of 3 to 5 cm.

[0021] Preferably, in step (c), a layer of river sand is covered until the seeds are no longer visible.

[0022] Preferably, in step (c), the climate box control conditions are as follows:

[0023] 2h at 10℃, 10h at 15℃, 8h at 20℃, 4h at 25℃; air humidity is 20%~30%.

[0024] Preferably, in step (c), the germination time is 4 to 6 days, and the water content of the river sand is controlled to be 10% to 15% during the germination process.

[0025] Preferably, in step (d), the seedling management comprises:

[0026] Control the moisture content of the seedling medium to 5% to 10%; the daily lighting time is 6 to 8 hours.

[0027] Preferably, in step (d), the seedling management also includes damping-off disease prevention and control, seedling hardening and root cutting treatment.

[0028] Compared with the prior art, the beneficial effects of the present invention include at least:

[0029] In the seedling raising method of the present invention, a specific seed soaking solution is used to soak the red sand seeds, which can promote the germination of the seeds, provide certain nutrients to improve the growth of the root system, and then with the assistance of a specific germination environment, the germination rate of the red sand seeds is significantly improved; in addition, through the limitation of the seedling raising matrix, sufficient nutrients and a suitable living environment can be better provided for the red sand. When the germinated seeds are sown on the seedling raising matrix, the growth and development of the red sand seedlings can be better promoted, and the emergence rate thereof can be improved. DETAILED DESCRIPTION

[0030] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0031] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0032] The embodiment of the present invention provides a method for raising seedlings of red sand seeds, the method comprising the following steps:

[0033] (a) Preparation of seedling medium:

[0034] According to weight parts, 100-150 parts of leaf mold, 30-40 parts of river sand, 20-25 parts of decomposed organic fertilizer and 5-8 parts of wheat bran are mixed to obtain a seedling medium;

[0035] (b) Seed soaking:

[0036] The red sand seeds are cleaned, soaked, and then dried, wherein the soaking solution comprises the following components in parts by weight:

[0037] 4-6 parts of potassium dihydrogen phosphate, 2-4 parts of calcium chloride, 1-2 parts of potassium nitrate, 0.2-0.5 parts of gibberellin and 200-500 parts of water;

[0038] (c) Seeding:

[0039] Spread river sand in the seedling tray, sow the soaked red sand seeds on the river sand, and then cover with a layer of river sand; then place in a climate box under dark conditions for germination;

[0040] (d) Seedling cultivation:

[0041] Arrange the seedling medium into a seedling bed. After the germination is completed, sow the red sand seeds in the seedling tray on the seedling bed and cover it with a layer of seedling medium, and then carry out seedling management.

[0042] In the seedling raising method of the present invention, a specific seed soaking solution is used to soak the red sand seeds, which can promote the germination of the seeds, provide certain nutrients to improve the growth of the root system, and then with the assistance of a specific germination environment, the germination rate of the red sand seeds is significantly improved; in addition, through the limitation of the seedling raising matrix, sufficient nutrients and a suitable living environment can be better provided for the red sand. When the germinated seeds are sown on the seedling raising matrix, the growth and development of the red sand seedlings can be better promoted, and the emergence rate thereof can be improved.

[0043] In some embodiments, in step (a), the decomposed organic fertilizer is decomposed sheep manure.

[0044] In some embodiments, in step (b), the soaking time is 24 to 36 hours and the temperature is room temperature.

[0045] In some embodiments, in step (c), the river sand is laid to a thickness of 3 to 5 cm.

[0046] In some embodiments, in step (c), a layer of river sand is covered until the seeds are no longer visible.

[0047] In some embodiments, in step (c), the climate chamber is controlled under the following conditions:

[0048] 2h at 10℃, 10h at 15℃, 8h at 20℃, 4h at 25℃; air humidity is 20%~30%.

[0049] In some embodiments, in step (c), the germination time is 4 to 6 days, and the water content of the river sand is controlled to be 10% to 15% during the germination process.

[0050] In some embodiments, in step (d), the seedling management comprises:

[0051] Control the moisture content of the seedling medium to 5% to 10%; the daily lighting time is 6 to 8 hours.

[0052] In some embodiments, in step (d), the seedling management further includes damping-off disease control, seedling hardening and root cutting treatment.

[0053] The technical solution of the present invention is further described in detail below through specific embodiments.

[0054] The raw materials used in the following examples are as follows:

[0055] Decomposed organic fertilizer: decomposed sheep manure, purchased from Shijiazhuang Fengmei Fertilizer Co., Ltd.;

[0056] Leaf mold: purchased from Tengfu Bamboo and Wood Sales Office, Lunan, Tangshan City.

[0057] Example 1

[0058] This embodiment is a method for raising seedlings of red sand seeds, and the method for raising seedlings of red sand seeds comprises the following steps:

[0059] (a) Preparation of seedling medium:

[0060] According to weight, 100 parts of leaf mold, 30 parts of river sand, 20 parts of decomposed organic fertilizer and 5 parts of wheat bran are mixed to obtain a seedling medium;

[0061] (b) Seed soaking:

[0062] The red sand seeds are cleaned, soaked, and then dried, wherein the soaking time is 24 to 36 hours at room temperature; the soaking solution includes the following components in parts by weight:

[0063] 4 parts of potassium dihydrogen phosphate, 4 parts of calcium chloride, 1 part of potassium nitrate, 0.2 parts of gibberellin and 200 parts of water;

[0064] (c) Seeding:

[0065] The river sand was spread in the seedling tray with a thickness of 3 cm, and the soaked red sand seeds were sown on the river sand, and then covered with a layer of river sand until the seeds were invisible; then the seeds were placed in a climate box for germination under dark conditions, wherein the germination time was 4 days, and the water content of the river sand was controlled to be 10% to 15% during the germination process; the control conditions of the climate box were as follows:

[0066] 2h at 10℃, 10h at 15℃, 8h at 20℃, 4h at 25℃; air humidity is 20% to 30%;

[0067] (d) Seedling cultivation:

[0068] Arrange the seedling medium into a seedling bed. After the germination is completed, sow the red sand seeds in the seedling tray on the seedling bed and cover it with a layer of seedling medium until the seeds are no longer visible. Then carry out seedling management. The seedling management includes controlling the moisture content of the seedling medium to 5%-10%, the daily light time to 6 hours, and the prevention and control of damping-off disease. After 2 months of management, carry out seedling hardening and root cutting treatment, and transplant them out after 2 months.

[0069] Example 2

[0070] This embodiment is a method for raising seedlings of red sand seeds, and the method for raising seedlings of red sand seeds comprises the following steps:

[0071] (a) Preparation of seedling medium:

[0072] According to weight parts, 150 parts of leaf mold, 40 parts of river sand, 25 parts of decomposed organic fertilizer and 8 parts of wheat bran are mixed to obtain a seedling medium;

[0073] (b) Seed soaking:

[0074] The red sand seeds are cleaned, soaked, and then dried, wherein the soaking time is 24 to 36 hours at room temperature; the soaking solution includes the following components in parts by weight:

[0075] 6 parts of potassium dihydrogen phosphate, 2 parts of calcium chloride, 2 parts of potassium nitrate, 0.5 parts of gibberellin and 500 parts of water;

[0076] (c) Seeding:

[0077] The river sand was spread in the seedling tray with a thickness of 5 cm, and the soaked red sand seeds were sown on the river sand, and then covered with a layer of river sand until the seeds were invisible; then the seeds were placed in a climate box for germination under dark conditions, wherein the germination time was 6 days, and the water content of the river sand was controlled to be 10% to 15% during the germination process; the climate box control conditions were as follows:

[0078] 2h at 10℃, 10h at 15℃, 8h at 20℃, 4h at 25℃; air humidity is 20% to 30%;

[0079] (d) Seedling cultivation:

[0080] Arrange the seedling medium into a seedling bed. After the germination is completed, sow the red sand seeds in the seedling tray on the seedling bed and cover it with a layer of seedling medium until the seeds are no longer visible. Then carry out seedling management. The seedling management includes controlling the moisture content of the seedling medium to 5%-10%, the daily light time to 8h, and the prevention and control of damping-off disease. After 2 months of management, carry out seedling hardening and root cutting treatment, and transplant them out after 2 months.

[0081] Example 3

[0082] This embodiment is a method for raising seedlings of red sand seeds, and the method for raising seedlings of red sand seeds comprises the following steps:

[0083] (a) Preparation of seedling medium:

[0084] According to weight, 120 parts of leaf mold, 35 parts of river sand, 22 parts of decomposed organic fertilizer and 6 parts of wheat bran are mixed to obtain a seedling medium;

[0085] (b) Seed soaking:

[0086] The red sand seeds are cleaned, soaked, and then dried, wherein the soaking time is 24 to 36 hours at room temperature; the soaking solution includes the following components in parts by weight:

[0087] 5 parts of potassium dihydrogen phosphate, 3 parts of calcium chloride, 2 parts of potassium nitrate, 0.3 parts of gibberellin and 300 parts of water;

[0088] (c) Seeding:

[0089] The river sand was spread in the seedling tray with a thickness of 4 cm, and the soaked red sand seeds were sown on the river sand, and then covered with a layer of river sand until the seeds were invisible; then the seeds were placed in a climate box for germination under dark conditions, wherein the germination time was 5 days, and the water content of the river sand was controlled to be 10% to 15% during the germination process; the control conditions of the climate box were as follows:

[0090] 2h at 10℃, 10h at 15℃, 8h at 20℃, 4h at 25℃; air humidity is 20% to 30%;

[0091] (d) Seedling cultivation:

[0092] Arrange the seedling medium into a seedling bed. After the germination is completed, sow the red sand seeds in the seedling tray on the seedling bed and cover with a layer of seedling medium until the seeds are no longer visible. Then carry out seedling management. The seedling management includes controlling the moisture content of the seedling medium to 5%-10%, the daily light time to 7h, and the prevention and control of damping-off disease. After 2 months of management, carry out seedling hardening and root cutting treatment, and transplant them out after 2 months.

[0093] Comparative Example 1

[0094] This comparative example is a method for raising seedlings of red sand seeds, and the method for raising seedlings of red sand seeds comprises the following steps:

[0095] (a) Preparation of seedling medium:

[0096] According to weight, 120 parts of leaf mold, 41 parts of river sand and 22 parts of decomposed organic fertilizer are mixed to obtain a seedling medium;

[0097] (b) Seed soaking:

[0098] The red sand seeds are cleaned, soaked, and then dried, wherein the soaking time is 24 to 36 hours at room temperature; the soaking solution includes the following components in parts by weight:

[0099] 5 parts of potassium dihydrogen phosphate, 3 parts of calcium chloride, 2 parts of potassium nitrate, 0.3 parts of gibberellin and 300 parts of water;

[0100] (c) Seeding:

[0101] The river sand was spread in the seedling tray with a thickness of 4 cm, and the soaked red sand seeds were sown on the river sand, and then covered with a layer of river sand until the seeds were invisible; then the seeds were placed in a climate box for germination under dark conditions, wherein the germination time was 5 days, and the water content of the river sand was controlled to be 10% to 15% during the germination process; the control conditions of the climate box were as follows:

[0102] 2h at 10℃, 10h at 15℃, 8h at 20℃, 4h at 25℃; air humidity is 20% to 30%;

[0103] (d) Seedling cultivation:

[0104] Arrange the seedling medium into a seedling bed. After the germination is completed, sow the red sand seeds in the seedling tray on the seedling bed and cover with a layer of seedling medium until the seeds are no longer visible. Then carry out seedling management. The seedling management includes controlling the moisture content of the seedling medium to 5%-10%, the daily light time to 7h, and the prevention and control of damping-off disease. After 2 months of management, carry out seedling hardening and root cutting treatment, and transplant them out after 2 months.

[0105] Comparative Example 2

[0106] This comparative example is a method for raising seedlings of red sand seeds, and the method for raising seedlings of red sand seeds comprises the following steps:

[0107] (a) Preparation of seedling medium:

[0108] According to weight, 120 parts of leaf mold, 35 parts of river sand, 22 parts of decomposed organic fertilizer and 6 parts of wheat bran are mixed to obtain a seedling medium;

[0109] (b) Seed soaking:

[0110] The red sand seeds are cleaned, soaked, and then dried, wherein the soaking time is 24 to 36 hours at room temperature; the soaking solution includes the following components in parts by weight:

[0111] 5 parts of potassium dihydrogen phosphate, 3 parts of calcium chloride, 2 parts of potassium nitrate, 0.3 parts of gibberellin and 300 parts of water;

[0112] (c) Seeding:

[0113] The river sand was spread in the seedling tray with a thickness of 4 cm, and the soaked red sand seeds were sown on the river sand, and then covered with a layer of river sand until the seeds were invisible; then the seeds were placed in a climate box for germination under dark conditions, wherein the germination time was 5 days, and the water content of the river sand was controlled to be 10% to 15% during the germination process; the control conditions of the climate box were as follows:

[0114] 4h at 10℃, 8h at 15℃, 8h at 20℃, 4h at 25℃; air humidity is 20% to 30%;

[0115] (d) Seedling cultivation:

[0116] Arrange the seedling medium into a seedling bed. After the germination is completed, sow the red sand seeds in the seedling tray on the seedling bed and cover with a layer of seedling medium until the seeds are no longer visible. Then carry out seedling management. The seedling management includes controlling the moisture content of the seedling medium to 5%-10%, the daily light time to 7h, and the prevention and control of damping-off disease. After 2 months of management, carry out seedling hardening and root cutting treatment, and transplant them out after 2 months.

[0117] Comparative Example 3

[0118] This comparative example is a method for raising seedlings of red sand seeds, and the method for raising seedlings of red sand seeds comprises the following steps:

[0119] (a) Preparation of seedling medium:

[0120] According to weight, 120 parts of leaf mold, 35 parts of river sand, 22 parts of decomposed organic fertilizer and 6 parts of wheat bran are mixed to obtain a seedling medium;

[0121] (b) Seed soaking:

[0122] The red sand seeds are cleaned, soaked, and then dried, wherein the soaking time is 24 to 36 hours at room temperature; the soaking solution includes the following components in parts by weight:

[0123] 5 parts of potassium dihydrogen phosphate, 3 parts of calcium chloride, 2 parts of potassium nitrate, 0.3 parts of gibberellin and 300 parts of water;

[0124] (c) Seeding:

[0125] The river sand was spread in the seedling tray with a thickness of 4 cm, and the soaked red sand seeds were sown on the river sand, and then covered with a layer of river sand until the seeds were invisible; then the seeds were placed in a climate box for germination under dark conditions, wherein the germination time was 5 days, and the water content of the river sand was controlled to be 10% to 15% during the germination process; the control conditions of the climate box were as follows:

[0126] 2h at 5℃, 10h at 15℃, 8h at 25℃, 4h at 30℃; air humidity is 20% to 30%;

[0127] (d) Seedling cultivation:

[0128] Arrange the seedling medium into a seedling bed. After the germination is completed, sow the red sand seeds in the seedling tray on the seedling bed and cover with a layer of seedling medium until the seeds are no longer visible. Then carry out seedling management. The seedling management includes controlling the moisture content of the seedling medium to 5%-10%, the daily light time to 7h, and the prevention and control of damping-off disease. After 2 months of management, carry out seedling hardening and root cutting treatment, and transplant them out after 2 months.

[0129] Experimental example

[0130] 200 red sand seeds from the same batch were randomly divided into four groups, and then seedlings were raised according to the seedling raising methods of Example 3 and Comparative Examples 1 to 3, with 3 replicates for each experiment;

[0131] The number of sprouts after the germination in step (c) and the number of seedlings in step (d) were counted for each group, and the seed germination rate and the seedling emergence rate were calculated respectively; the calculation results are shown in Table 1;

[0132] Table 1 Germination rate and emergence rate of red sand seeds

[0133] Group Germination rate Seedling rate Example 3 96％ 93.7％ Comparative Example 1 95.7％ 83.3％ Comparative Example 2 85.3％ 81％ Comparative Example 3 83.7％ 81.3％

[0134] From Table 1, we can see that:

[0135] Compared with the comparative example, the seedling raising method of the embodiment of the present application can better improve the germination rate and emergence rate of red sand seeds.

[0136] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A method for raising seedlings of red sand seeds, characterized in that: The steps include: (a) Preparation of seedling medium: According to weight parts, 100-150 parts of leaf mold, 30-40 parts of river sand, 20-25 parts of decomposed organic fertilizer and 5-8 parts of wheat bran are mixed to obtain a seedling medium; (b) Seed soaking: The red sand seeds are cleaned, soaked, and then dried, wherein the soaking solution comprises the following components in parts by weight: 4-6 parts of potassium dihydrogen phosphate, 2-4 parts of calcium chloride, 1-2 parts of potassium nitrate, 0.2-0.5 parts of gibberellin and 200-500 parts of water; (c) Seeding: Spread river sand in the seedling tray, sow the soaked red sand seeds on the river sand, and then cover with a layer of river sand; then place in a climate box under dark conditions for germination; (d) Seedling cultivation: Arrange the seedling medium into a seedling bed, sow the red sand seeds in the seedling tray on the seedling bed after the germination is completed, cover it with a layer of seedling medium, and then carry out seedling management; In the step (a), the decomposed organic fertilizer is decomposed sheep manure; In the step (b), the soaking time is 24 to 36 hours and the temperature is room temperature; In the step (c), the river sand is laid to a thickness of 3 to 5 cm; a layer of river sand is covered until the seeds are invisible; the climate box is controlled under the following conditions: 2 hours at 10°C, 10 hours at 15°C, 8 hours at 20°C, and 4 hours at 25°C; the air humidity is 20% to 30%; the germination time is 4 to 6 days, and the water content of the river sand is controlled to be 10% to 15% during the germination process.

2. The seedling raising method according to claim 1, characterized in that: In the step (d), the seedling management comprises: Control the moisture content of the seedling medium to 5% to 10%; the daily lighting time is 6 to 8 hours.

3. The seedling raising method according to claim 1, characterized in that: In the step (d), the seedling management also includes damping-off disease prevention and control, seedling hardening and root cutting treatment.