CN114097592B

CN114097592B - Seedling raising method for fritillaria paniculata seeds

Info

Publication number: CN114097592B
Application number: CN202010902028.XA
Authority: CN
Inventors: 段久富; 林良科
Original assignee: Sichuan Yiyuan Agriculture Co ltd
Current assignee: Sichuan Yiyuan Agriculture Co ltd
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2023-04-11
Anticipated expiration: 2040-09-01
Also published as: CN114097592A

Abstract

The invention provides a seedling raising method of fritillaria paniculata seeds, which comprises the following steps: spraying a nutrient solution A1-15 days after the seedbed is sowed, then spraying a nutrient solution B15-40 days after the seedbed is sowed, and finally spraying a nutrient solution C40-90 days after the seedbed is sowed; the nutrient solution A comprises IAA, zinc sulfate and calcium superphosphate, the nutrient solution B comprises magnesium sulfate, ferrous sulfate, copper sulfate, zinc sulfate and calcium superphosphate, and the nutrient solution C comprises boric acid, monopotassium phosphate and ammonium molybdate. The seedling raising method of the fritillaria paniculata seeds provided by the invention sprays different types of nutrient solutions to the seedlings at different periods in a growth cycle, thereby achieving the purpose of increasing both production and income of the fritillaria paniculata.

Description

Seedling raising method for fritillaria paniculata seeds

Technical Field

The invention relates to the field of seedling raising of fritillaria paniculata seeds, and particularly relates to a seedling raising method of fritillaria paniculata seeds.

Background

The fritillaria obushuensis is a variety under the item of fritillaria cirrhosa in Chinese pharmacopoeia, the planting technical difficulty, the acre yield and the size of a single bulb of the fritillaria obushuensis have advantages compared with other varieties, the seed source of the fritillaria obushuensis which is artificially domesticated at present reaches the eighth generation, the difficulty of the planting technology and the adaptability of a variety area are effectively verified, but the fritillaria seed seedling raising technology still needs to be improved in practical application, and particularly, the fritillaria obushuensis is called a needle because the 1-2-year-old fritillary plants of the fritillaria obushuensis are short and small in cost control of the fritillary obushuensis seed seedling raising. The 1-year-old fritillary plants are weak and have relatively poor stress resistance, and the field survival rate of the plants is very easily influenced by the external environment (temperature and humidity). Therefore, the method is particularly important in strong seedling management in the seedling stage of 1-year-old fritillary papulosa seedlings, and how to realize yield increase and income increase in the planting process is a technical problem to be solved urgently in the prior art.

In view of the above, the present invention is particularly proposed.

Disclosure of Invention

The invention aims to provide a seedling raising method for fritillaria paniculata seeds, which sprays different types of nutrient solutions to seedlings at different periods in a growth cycle so as to achieve the purpose of increasing both production and income of fritillaria paniculata.

In order to achieve the above purpose of the present invention, the following technical solutions are adopted:

the invention provides a seedling raising method of fritillaria paniculata seeds, which comprises the following steps:

spraying a nutrient solution A1-15 days after the seedbed is sowed, then spraying a nutrient solution B15-40 days after the seedbed is sowed, and finally spraying a nutrient solution C40-90 days after the seedbed is sowed;

wherein, the nutrient solution A comprises IAA, zinc sulfate and calcium superphosphate, and the IAA with proper concentration can promote the growth, division and differentiation of cells in a root meristematic region on a cellular level, thereby leading the root system of the fritillaria to grow rapidly; meanwhile, the growth and development of the root hair in the root hair area are promoted. Because the growth of the root system of the fritillaria papyrifera is fast, the cell membrane structure of the root of the plant can be stabilized by the cooperation of proper calcium ions and zinc ions, the maturation of a root hair area is promoted, namely, the wall of the root hair base is thickened and calcified and hardened, and the selective absorption function of the cell membrane on the ions of the external environment of the root system can be kept, so that the fast growth of the root system of the fritillaria papyrifera can be remarkably promoted after the three substances are mutually matched.

The nutrient solution B comprises magnesium sulfate, ferrous sulfate, copper sulfate, zinc sulfate and calcium superphosphate, and during the period from the seedling emergence stage to the full seedling stage of the Fritillaria obuensis, a proper amount of magnesium ion supply can participate in the construction of chlorophyll in a plant body through the absorption of plant roots and leaves; the magnesium is an activator of ribulose diphosphate carboxylase and can promote assimilation of carbon dioxide by plants, so that vegetative growth of the plants can be promoted in the full-seedling stage; meanwhile, ferrous ions are also necessary for synthesizing plant chlorophyll, and proper amount of supplementary ferrous ions can avoid chlorophyll synthesis from being influenced by deficiency of the chlorophyll to cause green and yellow leaves in the period of vigorous plant vegetative growth; copper ions and zinc ions are also involved in the synthesis of plant chlorophyll, are components or activators of various oxidases in plants, play an important role in redox reaction and respiration in the plants, and the application of the nutrient solution B is a key period for promoting the rapid growth of the plants, so that the growth of the plants in the period is ensured to be more vigorous after the mutual coordination of various nutrient elements.

The nutrient solution C comprises boric acid, monopotassium phosphate and ammonium molybdate, and boron has a good effect on the formation and stability of chlorophyll in the plant nutrient culture cuboid, can improve the photosynthesis of plants, promotes the synthesis of photosynthetic products, and thus improves the yield, especially the accumulation of the photosynthetic products of underground parts. And the potassium ion absorption with proper concentration can also enhance the stress resistance of plants. Ammonium molybdate participates in the metabolism of N and P in plants, is an important component of various enzymes such as azotase, nitrate reductase, xanthine oxidase and the like, and the molybdenum enzyme is a key enzyme for nitrogen assimilation and transportation, and the lack of molybdenum element can directly influence the photosynthesis of plants and finally influence the vegetative growth of the plants.

In the nutrient solution, IAA refers to indole-3-acetic acid.

In the process of raising seedlings after sowing, the sowing time is taken as a calculation reference point, different nutrient solutions are applied according to different time intervals after sowing respectively, wherein the nutrient solution A is used on a seedbed of the seeds just after sowing, can be the 1 st d after sowing, and can also be the 15 th d after sowing, the time is in the initial stage of seedling emergence, the sprayed nutrient solution A has the function of promoting the development and the maturity of the root systems of the seedlings so as to improve the rate of emergence, the rate of emergence is improved by spraying the nutrient solution, and the quality of seedling emergence and the quality of the seedlings are excellent. Generally, the nutrient solution A is applied for 1-2 times without repeated application, and the concentration of each component contained in the nutrient solution is preferably controlled within a certain range, because if the concentration of the nutrient solution is too high, the difference of osmotic pressure may cause that the cells of root crops cannot absorb water and lose water, so that the cells die, and the plants of the Fritillaria papyrifera themselves are weak, and the component proportion of the nutrient solution needs to be controlled to achieve a good yield-increasing effect.

Preferably, as a further practicable manner, the concentrations of the respective components of the nutrient solution a are: 10-30 mg/L of IAA, 0.1-0.2 wt% of zinc sulfate and 30-50g/L of calcium superphosphate.

Preferably, as a further implementable mode, the spraying nutrient solution A soaks the soil layer for a depth of more than or equal to 2cm, and the nutrient solution A soaks the soil layer for a certain depth to achieve a better seedling raising effect, so that a seed broadcasting layer is achieved and can be better in full contact with the sowed seeds.

The spraying of the nutrient solution B is selected in the period of 15-40 days after sowing, and is positioned at the time node of 10 days after the emergence of seedlings from the beginning of the seeds of the Fritillaria papulosa to the regular emergence of the seedlings, and the nutrient solution B needs to be supplemented with various nutrient components after the emergence of the seedlings, so that the nutrient solution sprayed in the stage is more attentive to various nutrients needed for supplying the growth of crops to promote the rapid growth of the seedlings, and similarly, the components of the nutrient solution also need to be controlled at proper concentrations, therefore, the mass percentage concentration of the components of the nutrient solution B is preferably prepared as follows: 0.2 to 0.3 percent of magnesium sulfate, 0.3 to 0.4 percent of ferrous sulfate, 0.1 to 0.2 percent of copper sulfate, 0.1 to 0.2 percent of zinc sulfate and 30 to 50g/L of calcium superphosphate.

In order to improve the cultivation effect, the nutrient solution is preferably sprayed repeatedly in the period, and the spraying method preferably comprises the following operation modes: the nutrient solution B is sprayed for 1 time every 10-15 days, and 3-4 times in total.

The nutrient solution C is sprayed in a time period from 40d after the seeds are sowed to physiological seedling falling of the fritillaria seedlings, the seedling emergence is carried out in the time period which is more than 10d, the later maintenance of the crop seedlings is needed, and a good foundation can be laid for subsequent yield increase and income increase after the nutrient solution C is sprayed.

Preferably, as a further practicable mode, the mass percentage concentration of each component of the nutrient solution C is as follows: 0.1 to 0.2 percent of boric acid, 0.3 to 0.6 percent of monopotassium phosphate and 0.05 to 0.1 percent of ammonium molybdate.

In order to improve the cultivation effect, the nutrient solution is preferably sprayed repeatedly in the period, and the spraying method preferably comprises the following operation modes: the nutrient solution C is sprayed for 1 time every 10-15 days, and 3-4 times in total.

The nutrient solution is prepared at present, so that the effect of the nutrient solution is optimal.

In addition, besides spraying nutrient solution at different periods, the invention also refines the establishment of the seedbed before sowing, specifically, in the establishment process of the seedbed before sowing, the seedbed is filled with seedling culture medium with the laying thickness of more than or equal to 5cm, the seedling culture medium mainly comprises sterilized and crushed turfy soil and perlite and decomposed animal manure, and the turfy soil and the perlite are mixed according to the volume ratio of (3-6): 1. After the seedbed is filled with the seedling culture substrate with specific components, the seeds can absorb nutrients and moisture more easily in the following process.

Preferably, as a further practical mode, the artificially woven straw mats are soaked in the 800-time carbendazim solution for more than 24 hours, laid in the frame of the seedbed, and then the seedbed is filled with the seedling culture substrate. Before filling seedling raising matrix, firstly, a seedbed frame is built and seedbed bottom soil is laid, the frame is generally laid by adopting hollow bricks, and after the bottom soil is laid in the greenhouse hollow brick seedbed frame subsequently, a manually-woven double-layer straw mat is laid on the bottom soil, the straw mat needs to be sterilized in advance, and the influence of the growth of mixed bacteria on the normal germination of seeds is also avoided.

Preferably, as a further practicable mode, the step between spraying the nutrient solution a and spraying the nutrient solution B further includes: mixing sterilized folium Pini and turfy soil (1-2): 1 by volume ratio, covering the sown seeds of Fritillaria obueli with a thickness of 2-3cm, and sterilizing by adding water. And the steps of covering a soil layer and sterilizing are preferably carried out between the steps of spraying the nutrient solution A and spraying the nutrient solution B, so that the operation is more favorable for keeping nutrient components in the growth process of the seedlings without loss, and necessary nutrition is provided for the growth of the seedlings.

Compared with the prior art, the invention has the beneficial effects that:

(1) The invention adopts three nutrient solutions with different components, and the nutrient solutions are applied at different periods of seedling raising, so as to promote root system building, stem and leaf development and bulb effective substance accumulation, thereby achieving the purpose of increasing both production and income.

(2) The nutrient solution adopted by the invention is specially selected according to the excellent degree of the effect after the components are compounded, and the germination rate of the seeds and the quality of the subsequent seedling are greatly improved through the mutual synergistic effect.

(3) According to the invention, the process of establishing the seedbed is optimized, so that a good foundation is provided for seed seedling culture, and a better foundation stone is provided for subsequent seedling strengthening operation.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to examples, but it will be understood by those skilled in the art that the following examples are only illustrative of the present invention and should not be construed as limiting the scope of the present invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.

Example 1

The specific method for raising the seedlings comprises the following steps:

1. soil preparation by soil turning: finishing the soil preparation, and broadcasting 2-3 kg of insecticide for preventing and treating wireworms and grubs per mu of soil;

2. laying a hollow brick seedbed framework: after the soil at the bottom of the seedbed is leveled, laying a hollow brick seedbed frame and 4 boxes/sheds, wherein the width of each box is 1.45 meters, and 50cm protection rows are reserved at the two most sides of each shed;

3. and (3) paving a seedbed straw mat: carrying out carbendazim 800-time liquid soaking treatment on the artificially woven double-layer straw mats for 24 hours, and paving the artificially woven double-layer straw mats in a frame of a greenhouse hollow brick seedbed above bottom soil after finishing the sterilization treatment; the mode that the hollow bricks are used as a seedbed frame and the straw mats cover the bottom soil is formed;

4. pretreatment of a seedling substrate: pulverizing natural turfy soil, placing into a high temperature high pressure sterilization tank, sterilizing at 120 deg.C, and inactivating grass seeds (residual grass seeds in matrix) for 30min;

5. filling a seedling culture substrate seedbed: uniformly mixing the turfy soil subjected to the treatment with perlite (0.1-0.3 cm) by a ratio of 5; laying the mixed composite matrix in a prepared hollow brick seedbed frame, wherein the laying thickness is 5cm;

6. and (3) water replenishing of the seedbed: opening a greenhouse internal spraying system, and supplementing water to the seedbed substrate with the paved bottom layer until the substrate humidity is supplemented to 75-85%;

7. and (3) seedbed sterilization and seed spreading: sterilizing the seedbed by using 1200 times of soil sterilizing agent, and uniformly spreading the seeds of the fritillaria obovata which are subjected to physiological after-ripening and morphological after-ripening on the seedbed; the prepared nutrient solution A is uniformly sprayed on a seedbed where seeds are broadcast, the saturation depth of the nutrient solution is more than or equal to 5cm, and the preparation method of the nutrient solution A comprises the following steps: preparing mixed solution of 20mg/L IAA and 0.15wt% zinc sulfate, and blending calcium superphosphate according to 40g/L to obtain the calcium superphosphate, wherein the mixed solution is ready to use;

8. covering surface soil: mixing the sterilized pine needles with turfy soil in a volume ratio of 2;

9. water replenishing and sterilizing: controlling the humidity of the seedbed to be 75-85% through a greenhouse internal spraying system, and sterilizing the seedbed in the greenhouse by 1200 times of soil sterilizing agent;

10. after sowing for 10 days, uniformly spraying the prepared nutrient solution A on a seedbed where seeds are sown; checking the penetration depth of the nutrient solution until reaching the seed sowing layer, namely the penetration depth of the nutrient solution is more than or equal to 2cm;

11. uniformly spraying the prepared nutrient solution B on fritillaria seedlings and seedbeds for 1 time and 3 times at intervals of 10 d-15 d at a time node from the beginning of seedling emergence of the fritillaria papulosa seeds to the time node within 10 days after the seedlings emerge regularly, namely 15 d-40 d after sowing; the preparation method of the nutrient solution B comprises the following steps: preparing a mixed solution of 0.25wt% magnesium sulfate, 0.35wt% ferrous sulfate, 0.15wt% copper sulfate and 0.15wt% zinc sulfate, and blending calcium superphosphate according to 40g/L, wherein the mixed solution is ready to use;

12. after the seedlings of the seeds are in order for 10 days, namely the seeds are sowed for 40 days, preparing a nutrient solution C, spraying the nutrient solution C for 1 time every 10-15 days, and totally performing 4 times until the seedlings of the fritillaria are physiologically transplanted, wherein the preparation method of the nutrient solution C comprises the following steps: preparing a mixed solution of 0.15wt% of boric acid, 0.5wt% of monopotassium phosphate and 0.075wt% of ammonium molybdate, and then using the mixed solution.

Example 2

The other operation steps are the same as the example 1, except that the preparation method of the nutrient solution A comprises the following steps: preparing a mixed solution of IAA10mg/L and 0.1wt% zinc sulfate, blending calcium superphosphate according to 50g/L, spraying at the 15 th day after sowing, and not spraying in the step 7.

Example 3

The other operation steps are the same as those in example 1, except that the preparation method of the nutrient solution A comprises the following steps: a mixed solution of IAA30mg/L and 0.2wt% zinc sulfate was prepared, and calcium superphosphate was blended in an amount of 30 g/L.

Example 4

The other operation steps are the same as the embodiment 1, and only 15 to 40 days after sowing, the prepared nutrient solution B is uniformly sprayed on fritillaria seedlings and seedbeds, and the nutrient solution B is sprayed for 4 times at intervals of 10 days; the preparation method of the nutrient solution B comprises the following steps: preparing a mixed solution of 0.2wt% magnesium sulfate, 0.4wt% ferrous sulfate, 0.1wt% copper sulfate and 0.2wt% zinc sulfate, and blending into calcium superphosphate according to 30 g/L.

Example 5

The other operation steps are the same as example 1, except that the preparation method of the nutrient solution B comprises the following steps: preparing a mixed solution of 0.3wt% magnesium sulfate, 0.3wt% ferrous sulfate, 0.2wt% copper sulfate and 0.1wt% zinc sulfate, and blending calcium superphosphate according to 50g/L.

Example 6

The other operation steps are consistent with those of the embodiment 1, only after the seedling emergence of the seeds is regular for 10 days, namely the seeds are broadcast for 40-90d, the nutrient solution C is prepared, the nutrient solution C is sprayed for 1 time every 10 d-15 d, and the steps are totally carried out for 3 times until the physiological seedling falling of fritillaria seedlings, and the preparation method of the nutrient solution C comprises the following steps: preparing a mixed solution of 0.1wt% of boric acid, 0.6wt% of monopotassium phosphate and 0.05wt% of ammonium molybdate, and then using the mixed solution.

Example 7

The other operating steps are identical to those of example 1, except that the preparation method of the nutrient solution C comprises the following steps: preparing a mixed solution of 0.2wt% of boric acid, 0.3wt% of monopotassium phosphate and 0.1wt% of ammonium molybdate, and then using the mixed solution.

Example 8

The other operation steps are the same as those of the example 1, except that in the step 5, the turfy soil and perlite (0.1-0.3 cm) which are treated in the way are uniformly mixed by a volume ratio of 3; laying the mixed composite matrix in the prepared hollow brick seedbed frame, wherein the laying thickness is 6cm;

in the step 8, pine needles are mixed with turfy soil in a volume ratio of 1, and the mixed seedling culture substrate is uniformly spread and covered on the sown seeds of the fritillaria paniculata with a covering thickness of 3cm.

Example 9

The other operation steps are the same as the example 1, except that the preparation method of the nutrient solution A comprises the following steps: a solution of IAA35mg/L and 0.3wt% zinc sulphate was prepared and calcium superphosphate was incorporated at 10 g/L.

Example 10

The other operation steps are the same as those in example 1, except that the preparation method of the nutrient solution B comprises the following steps: preparing a mixed solution of 0.6wt% magnesium sulfate, 0.1wt% ferrous sulfate, 0.3wt% copper sulfate and 0.3wt% zinc sulfate, and blending into the calcium superphosphate according to 10 g/L.

Example 11

The other operating steps are identical to those of example 1, except that the preparation method of the nutrient solution C comprises the following steps: preparing a mixed solution of 0.5wt% of boric acid, 0.2wt% of monopotassium phosphate and 0.02wt% of ammonium molybdate, and then using the mixed solution.

Comparative example 1

The other procedure was identical to example 1 except that nutrient solution a was free of calcium superphosphate and zinc sulfate.

Comparative example 2

The other operation steps were the same as in example 1 except that copper sulfate, zinc sulfate and calcium superphosphate were not added to the nutrient solution B.

Comparative example 3

The other operation steps were identical to those of example 1, except that boric acid and ammonium molybdate were not added to the nutrient solution C.

Comparative example 4

The other operation steps were identical to those of example 1 except that the nutrient solutions a, B and C were not added.

Comparative example 5

The other operating steps were identical to those of example 1, except that no nutrient solution A was added.

Comparative example 6

The other operating steps were identical to those of example 1, except that nutrient solution B was not added.

Comparative example 7

The other procedure was identical to example 1 except that nutrient solution C was not added.

Experimental example 1

The specific results of comparing the growth conditions of the seedlings of examples 1-11 and comparative examples 1-7 are shown in table 1, the implementation places are all performed under the same seedling raising greenhouse at the same place, the average length of the bulb root and the length and width of the leaf of the fritillaria oblonga bulb of 1-2 years old are measured, and the final yield of the fritillaria oblonga bulb of 2 years old per unit area is statistically compared.

TABLE 1 comparison of agronomic character parameters of 60d old plants of seeds of Fritillaria papyrifera

Group of	Average blade length (cm)	Average blade width (cm)	Average root number (strip)	Average root length (cm)
					Example 1	10.83	0.51	1	5.52
Example 2	10.59	0.42	1	5.32
					Example 3	10.47	0.49	1	5.41
Example 4	10.51	0.50	1	5.46
					Example 5	10.66	0.49	1	5.48
Example 6	10.75	0.47	1	5.31
					Example 7	10.46	0.48	1	5.39
Example 8	10.71	0.45	1	5.40
					Example 9	9.10	0.38	1	4.66
Example 10	9.56	0.41	1	4.81
					Example 11	10.57	0.48	1	4.96
Comparative example 1	8.36	0.34	1	3.81
					Comparative example 2	9.71	0.42	1	4.54
Comparative example 3	9.12	0.38	1	5.12
					Comparative example 4	5.98	0.30	1	2.86
Comparative example 5	6.22	0.29	1	3.12
					Comparative example 6	7.34	0.30	1	4.15
Comparative example 7	8.26	0.33	1	4.88

TABLE 2 comparison of agronomic trait parameters of 60d old Orobanchlet seedlings

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TABLE 3 comparison of underground phosphorus diameters of bulbs of annual fritillary in same seedling growing greenhouse

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TABLE 4 comparison of underground phosphorus diameters of bulbs of fritillaria in the same seedling growing greenhouse

As can be seen from the comparative analysis of the above-ground agronomic data and the below-ground bulb specification data of the fritillaria in tables 1 to 4, examples 2 to 7 are inferior to example 1 in both the above-ground agronomic data and the below-ground bulb specification data, but the data is not significant, the change of the bulb specification size is less than or equal to 10%, the change of the bulb specification is most significant in the treatment of examples 2 to 7, namely example 3, the change of the bulb specification is adjusted within the range of the reagent concentration in the formula a, the diameter of the bulb accounts for 92.7% of that in example 1, and the difference accounts for 7.3% of that in example 1; therefore, the proper adjustment of the concentrations of the components of the reagents A to C within the allowable range of the invention can affect the bulb specification and the annual yield of the 1-year-old fritillary bulb, but the influence is less obvious; through comparative analysis of the data of the embodiments 8 to 11 and the data of the embodiment 1, the embodiment 8 adjusts the proportion of the seedling substrate and controls the thickness of the covering soil of the seeds to be the maximum value of the range data, and the size specification of the bulbs is not obviously changed and is only reduced by 3.5 percent; however, the concentration of each component in each nutrient solution A-C can be adjusted by a larger value, which can obviously affect the agronomic value of overground and underground parts of 1-2-year-old fritillary bulb, the maximum yield reduction of 1 year can reach 17.0%, and the maximum yield reduction of 2 years can reach 8.2%; through data statistical analysis of comparative examples 1 to 7, it can be seen that if one or more of the nutrient solutions A to C described in the patent are not used, the agronomic characters and the underground bulb characters of the overground part of fritillary bulb can be influenced, including the number of roots of the 2-year-old fritillary bulb, and the agronomic characters and the underground bulb characters are obviously influenced; wherein, nutrient solutions A, B and C are not used and the operation management described in the patent is adopted, so that the growth level of the average root system number is reduced by 1.7, namely the root system number is reduced by 32.1%; the yield is more remarkable in comparison, and compared with example 1, the yield of the bulb of the fritillaria thunbergii in 1 year is reduced by 49.5% in comparative example 4 (blank group), and the yield of the bulb of the fritillaria thunbergii in 2 years is reduced by 51.8%, and the yield is reduced to different degrees without using one of the nutrient solutions A, B and C.

In conclusion: by adopting the fritillaria seed seedling raising method, nutrient solutions A-C are used, and the concentration values of the nutrient solutions are properly adjusted within the concentration range of the invention, so that the change of the overground agronomic data, the underground bulbs and the yield value of 1-2-year-old fritillary can be caused, but the effect is not obvious; if one or more of the nutrient solutions A to C are not used and the component concentration of each nutrient solution is greatly adjusted (exceeds the allowable interval value of the patent), the agricultural data and the underground bulb data of the overground part of the fritillary bulb in 1 to 2 years are influenced, and finally the yield of the fritillary bulb is influenced. Namely, the nutrient solution formula and the application mode have the remarkable effects of increasing the yield and income of the seedling raising of the seeds.

While particular embodiments of the present invention have been illustrated and described, it would be obvious that various other changes and modifications can be made without departing from the spirit and scope of the invention. It is therefore intended to cover in the appended claims all such changes and modifications that are within the scope of this invention.

Claims

1. A seedling raising method for fritillaria paniculata seeds is characterized by comprising the following steps:

the nutrient solution A comprises IAA, zinc sulfate and calcium superphosphate, the nutrient solution B comprises magnesium sulfate, ferrous sulfate, copper sulfate, zinc sulfate and calcium superphosphate, and the nutrient solution C comprises boric acid, monopotassium phosphate and ammonium molybdate;

wherein, the nutrient solution B is sprayed for 1 time every 10 to 15 days for 3 to 4 times in total, and the nutrient solution C is sprayed for 1 time every 10 to 15 days for 3 to 4 times in total;

the concentration of each component of the nutrient solution A is as follows: 10-30 mg/L of IAA, 0.1-0.2 wt% of zinc sulfate and 30-50g/L of calcium superphosphate;

the nutrient solution B comprises the following components in percentage by mass: 0.2 to 0.3 percent of magnesium sulfate, 0.3 to 0.4 percent of ferrous sulfate, 0.1 to 0.2 percent of copper sulfate, 0.1 to 0.2 percent of zinc sulfate and 30 to 50g/L of calcium superphosphate;

the nutrient solution C comprises the following components in percentage by mass: 0.1 to 0.2 percent of boric acid, 0.3 to 0.6 percent of monopotassium phosphate and 0.05 to 0.1 percent of ammonium molybdate.

2. The seedling raising method according to claim 1, wherein the depth of penetration of the sprayed nutrient solution A into the soil layer is more than or equal to 5cm.

3. A seedling raising method according to claim 1, characterized in that in the process of building the seedbed before sowing, the seedbed is filled with a seedling raising substrate, the laying thickness is more than or equal to 5cm, the seedling raising substrate mainly comprises sterilized and crushed turfy soil, perlite and animal manure, and the turfy soil and perlite are mixed according to the volume ratio of (3-6): 1.

4. A method for raising seedlings according to claim 3, wherein the artificially woven mat is first soaked in 800 times of carbendazim solution for 24 hours or more, laid in a frame of the seedbed, and then the seedbed is filled with the seedling raising substrate.

5. A seedling raising method according to claim 1, wherein the step between spraying the nutrient solution a and spraying the nutrient solution B further comprises: mixing sterilized folium Pini and turfy soil (1-2): 1 by volume ratio, covering the sown seeds of Fritillaria obueli with a thickness of 2-3cm, and sterilizing by adding water.