Method for cultivating black water angelica sinensis in saline-alkali soil

Abstract

The invention belongs to the technical field of Chinese herbal medicine planting, and particularly relates to a method for cultivating black water angelica sinensis in saline-alkali soil. The waterproof cloth with holes, the sand and the straw are laid, so that alkali efflorescence can be blocked, and the air permeability of the soil can be improved; by adding the planting matrix containing organic fertilizer, edible fungus waste fungus bags and original soil, the nutrient content of soil can be increased, the buffering power of the soil can be improved, the air permeability and water permeability of the soil are improved, the root growth of the black water angelica sinensis is stimulated, and the salt resistance of plants is improved; meanwhile, the design of ridges with slopes is combined, so that salt and alkali in the planting land can be washed and dissolved by water, and the survival rate of the black water angelica sinensis is increased. Experiments prove that after the technical scheme provided by the invention is adopted, the utilization rate of northeast saline-alkali soil is improved, the survival rate of the black water angelica sinensis is as high as 90%, and the yield and quality of the black water angelica sinensis are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of Chinese herbal medicine planting, and particularly relates to a method for cultivating black water angelica in saline-alkali land. Background Art

[0002] Land salinization is a global problem. For example, there are also a large number of saline-alkali lands in Northeast my country, which directly harm crop cells and affect their normal respiration and metabolism. This not only limits regional ecological construction, but also restricts the economic development of the Northeast region.

[0003] Angelica amurensis Schischk. is a plant of the Apiaceae family. Its root is conical, with lateral roots and dark brown root neck. Its stem is hollow and hairless. Its basal leaves have long petioles and the leaf sheaths are ovate-elliptical. Its leaves are triangular-ovate in width and the leaf sheaths at the top of the stem are tubular. Its compound umbels are densely covered with rough hairs, its petals are white, and its stylopodium is short conical. Its fruit is long ovate or ovate. Its flowering period is from July to August and its fruiting period is from August to September. It is distributed in Northeast my country and Inner Mongolia. It has the effects of dispelling wind and relieving swelling and pain. It is clinically used to treat headache caused by wind and cold, sinusitis, tooth swelling and pain, and sores. However, Angelica amurensis has high requirements for the planting environment and cultivation methods. When the cultivation method is improper or the planting environment is not suitable, the germination rate of Angelica amurensis will be reduced, which seriously restricts the yield and quality of Angelica amurensis. There is no report on the planting of Angelica amurensis in saline-alkali land. Summary of the invention

[0004] The purpose of the present invention is to provide a method for cultivating black water angelica in saline-alkali land, which can reasonably utilize the saline-alkali land and improve the germination rate and survival rate of black water angelica.

[0005] The invention provides a method for cultivating black water angelica in saline-alkali land, comprising the following steps: ploughing the saline-alkali land and setting a planting pit, filling the planting pit with waterproof cloth, sand and straw in sequence, and backfilling the planting matrix on the straw to obtain a ridge with a slope of 30 to 35 degrees; disinfecting the black water angelica seedlings, transplanting the disinfected black water angelica seedlings to the disinfected ridge, and watering; harvesting in October of the second year of transplanting to obtain the black water angelica; the planting matrix comprises organic fertilizer, edible fungus waste bags and original soil in the planting pit; the mass ratio of the organic fertilizer, the edible fungus waste bags and the original soil in the planting pit is 1:3:2; and holes are arranged on the waterproof cloth.

[0006] Preferably, the diameter of the hole is 5-7 cm; the number of holes per square meter of the waterproof cloth is 200-300; the thickness of the sand is 15-18 cm; the particle size of the straw is >0 and ≤5 cm; and the thickness is 15-20 cm.

[0007] Preferably, the organic fertilizer comprises fermented chicken manure, pig manure or cow manure.

[0008] Preferably, the height of the ridge is 20-25 cm, and the width is 40-45 cm; a ditch is formed between two adjacent ridges; and the width of the ditch is 15-17 cm.

[0009] Preferably, the transplanting is carried out under shade, holes are dug with a row spacing of 30 to 33 cm and a plant spacing of 30 to 33 cm, and one black water angelica seedling is transplanted into each hole; the transplanting depth is 25 to 30 cm, and the thickness of the covering soil is 10 to 15 cm.

[0010] Preferably, the shading time is from 1st to 20th day after transplanting.

[0011] Preferably, the saline-alkali land has a salt content of 0.2% to 0.4% and a pH value of 7.1 to 8.5.

[0012] Preferably, the tillage thickness is 50-55 cm; the planting pit has a depth of 40-50 cm and a width of 35-40 cm.

[0013] Preferably, the method for disinfecting black water angelica seedlings comprises: soaking the roots of the black water angelica seedlings in a carbendazim solution for 10 to 20 minutes; and the agent used for disinfecting the ridges is carbendazim.

[0014] Preferably, when watering, the thickness of the moist soil is 30 to 35 cm.

[0015] Beneficial effects: The present invention provides a method for cultivating black water angelica in saline-alkali land. The laying of waterproof cloth with holes is not only conducive to blocking the return of alkali, but also can increase the air permeability of the soil; the laying of sand and straw can absorb the salt and alkali underground; the organic fertilizer in the planting matrix can be decomposed and transformed by microorganisms to form humus, thereby improving the buffering capacity of the soil, and the waste mushroom bags of edible fungi and the original soil in the planting pit can increase the air permeability and water permeability of the soil, allowing the plant roots to absorb a large amount of nutrients, and at the same time, the waste mushroom bags of edible fungi can be transformed into humus after decay in the later stage, and the humus reacts with sodium carbonate to form sodium humate, thereby reducing the acidity of the soil; sodium humate can also stimulate the growth of the root system of black water angelica and increase the salt resistance of the plant; in addition, the ridge platform design with a slope of 30 to 35 degrees is conducive to water flushing and dissolving the salt and alkali in the planting site; combined with the disinfection and transplanting of black water angelica transplanting seedlings, the survival rate of black water angelica is improved. Experiments have shown that the use of the technical solution provided by the present invention not only improves the utilization rate of saline-alkali land in Northeast China, but also increases the survival rate of blackwater angelica to 90%, thereby improving the yield and quality of blackwater angelica. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments are briefly introduced below.

[0017] Figure 1 Schematic diagram of the shade net arch shed in Example 1 and Comparative Example 1;

[0018] Figure 2 Schematic diagram of the microbial agent product used in Example 1 and Comparative Example 1. DETAILED DESCRIPTION

[0019] The invention provides a method for cultivating black water angelica in saline-alkali land, comprising the following steps: ploughing the saline-alkali land and setting a planting pit, filling a waterproof cloth, sand and straw in the planting pit in sequence, and backfilling a planting matrix on the straw to obtain a ridge with a slope of 30 to 35 degrees; disinfecting black water angelica seedlings, transplanting the disinfected black water angelica seedlings to the disinfected ridge, and watering; harvesting in October of the second year of transplanting to obtain the black water angelica; the planting matrix comprises organic fertilizer, edible fungus waste bags and original soil in the planting pit; the mass ratio of the organic fertilizer, the edible fungus waste bags and the original soil in the planting pit is 1:3:2; the organic fertilizer comprises fermented chicken manure, pig manure or cow manure; and holes are arranged on the waterproof cloth.

[0020] In the present invention, unless otherwise specified, the equipment and materials used are all purchased conventionally.

[0021] The present invention preferably determines the saline-alkali land area where black water angelica is to be planted. The salt content of the saline-alkali land of the present invention is preferably 0.2% to 0.4%, more preferably 0.2%; the pH value of the saline-alkali land is preferably 7.1 to 8.5, more preferably 7.1; the saline-alkali land can be saline-alkali land in the Northeast region, and in the embodiment of the present invention, specifically Daqing City, Heilongjiang Province.

[0022] After determining the saline-alkali land area, the present invention plows the saline-alkali land and sets planting pits. The plowing depth of the present invention is preferably 50-55 cm, more preferably 50 cm; the number of plowing is preferably 2 times; there are no special requirements for the equipment and method of plowing, and the technology well known in the art can be used; because the saline-alkali soil is hard and compacted, plowing can loosen the cultivated layer, cut off the soil capillaries, reduce the increase of soil moisture, and effectively control the return of soil alkali; the depth of the planting pit is preferably 40-50 cm, more preferably 50 cm; the width of the planting pit is preferably 35-40 cm, more preferably 40 cm; there are no special requirements for the length of the planting pit, which can be determined according to the actual situation of the planting area.

[0023] After obtaining the planting pit, the present invention preferably fills the planting pit with waterproof cloth, sand and straw in sequence, and backfills the planting matrix on the straw to obtain the improved area. The waterproof cloth of the present invention is provided with holes; the diameter of the holes is preferably 5 to 7 cm, more preferably 5 cm; the number of holes per square meter of the waterproof cloth is preferably 200 to 300, more preferably 300; the holes are preferably evenly distributed on the waterproof cloth; the waterproof cloth is not only conducive to blocking alkali return, but also can increase the air permeability of the soil.

[0024] The sand described in the present invention is preferably fine sand; there are no special requirements for the particle size and source of the fine sand, and fine sand known in the art can be used; the laying thickness of the fine sand is preferably 15-18 cm, and more preferably 15 cm; the rice straw is preferably crushed rice straw; the particle size of the crushed rice straw is preferably >0 and ≤5 cm, and it is more preferably in powder form; the laying thickness of the rice straw is preferably 15-20 cm, and more preferably 15 cm; by laying sand and rice straw, underground salt and alkali can be absorbed, thereby reducing the salinity of saline-alkali land.

[0025] The planting matrix of the present invention includes organic fertilizer, waste mushroom bags of edible fungi and original soil of the planting pit; the mass ratio of the organic fertilizer, waste mushroom bags of edible fungi and original soil of the planting pit is preferably 1:3:2; the organic fertilizer preferably includes fermented chicken manure, pig manure or cow manure, and more preferably includes chicken manure, pig manure or cow manure fermented for more than two years. In a specific embodiment of the present invention, the organic fertilizer is preferably cow manure; the waste mushroom bags of edible fungi are purchased from Heilongjiang Bingrong Biotechnology Co., Ltd.; the waste mushroom bags of edible fungi preferably include one or more of broad-leaved tree chips, cottonseed hulls and bran; the organic fertilizer in the planting matrix can be decomposed and transformed by microorganisms to form humus, thereby improving the buffering capacity of the soil, and the waste mushroom bags of edible fungi and the original soil in the planting pit can increase the air permeability and water permeability of the soil, allowing the plant roots to absorb a large amount of nutrients, and the waste mushroom bags of edible fungi can be transformed into humus after decay in the later stage, and the humus reacts with sodium carbonate to form sodium humate, thereby reducing the acidity of the soil; sodium humate can also stimulate the root growth of black water angelica and increase the salt resistance of the plant.

[0026] After obtaining the improved area, the present invention preferably sets ridges on the improved area. The height of the ridges of the present invention is preferably 20-25 cm, more preferably 20 cm; the width of the ridges is preferably 40-45 cm, more preferably 40 cm; a ridge ditch is formed between two adjacent ridges; the width of the ridge ditch is preferably 15-17 cm, more preferably 15 cm; the slope of the ridge is 30-35°, preferably 30°; the micro-topography obtained by reasonably designing the slope is conducive to water flushing and dissolving salt and alkali, and the soluble salt and alkali in the topsoil layer is discharged into the deep soil or washed away by infiltration.

[0027] After obtaining the ridge, the present invention preferably disinfects the ridge to obtain a disinfected ridge. The disinfection agent of the present invention is preferably a carbendazim solution; the concentration of the carbendazim solution is preferably 600-1000 PPM, more preferably 1000 PPM; there is no special requirement for the disinfection method, and the technology well known in the art can be used.

[0028] The present invention preferably obtains black water angelica seedlings by excavation. In the present invention, the black water angelica seedlings are preferably one-year-old seedlings; the excavation depth is preferably 30 to 35 cm, more preferably 35 cm; the black water angelica root system is preferably kept intact and with the original growth soil of the black water angelica during the excavation; the roots of the black water angelica seedlings are immediately moisturized after excavation and placed in a cool place for storage; there are no special requirements for the moisturizing treatment method and the cool place, and methods well known in the art can be used; after excavation, one-third of the single leaves of the black water angelica seedlings are removed to reduce water evaporation; the excavation time is preferably mid-to-late April.

[0029] After obtaining the black water angelica seedlings, the present invention preferably disinfects the black water angelica seedlings to obtain disinfected black water angelica seedlings. The method for disinfecting the black water angelica seedlings of the present invention preferably comprises: soaking the roots of the black water angelica seedlings in a carbendazim solution for 10 to 20 minutes, more preferably 20 minutes; the concentration of the carbendazim solution is preferably 600 to 1000 PPM, more preferably 1000 PPM. Disinfection treatment is beneficial to avoid the invasion and infection of pathogens and improve the survival rate.

[0030] After obtaining the sterilized black water angelica seedlings, the present invention transplants the sterilized black water angelica seedlings onto the sterilized ridge platform and waters them to obtain the transplanted black water angelica seedlings. The present invention preferably performs the excavation and transplanting of the black water angelica seedlings on the same day, which is beneficial to improving the survival rate of the black water angelica. The present invention preferably shades the black water angelica seedlings during and after transplanting; the time of shading after transplanting is preferably the first 20 days after transplanting; starting from the 21st day of transplanting, preferably shading is performed at 9:00 am every day, and no shading treatment is performed after 16:00 pm every day, so as to help the newly transplanted seedlings preserve plant moisture and better rooting; during the transplanting, preferably holes are dug according to a row spacing of 30 to 33 cm and a plant spacing of 30 to 33 cm, and more preferably holes are dug according to a row spacing of 30 cm and a plant spacing of 30 cm; preferably one black water angelica seedling is transplanted into each hole, and the transplanted seedlings are arranged in a triangular shape; the transplanting depth is preferably 25 to 30 cm, and more preferably 30 cm; during the transplanting, the thickness of the covering soil is preferably 10 to 15 cm, and more preferably 15 cm.

[0031] There is no special requirement for the amount of watering in the present invention, and the thickness of the moist soil is preferably 30 to 35 cm, and more preferably 35 cm; the watering is preferably carried out in the form of micro-spraying and / or drip irrigation, which is conducive to slow flooding of water in the form of spray and / or slow dripping, thereby reducing the situation of soil compaction.

[0032] After obtaining the transplanted black water angelica seedlings, the present invention preferably performs routine management on the transplanted black water angelica seedlings, harvests them in October of the second year after transplanting, and obtains black water angelica. In the present invention, the routine management preferably includes fertilization, weeding and watering; the fertilization includes the first fertilization and topdressing; the present invention preferably performs the first fertilization when the black water angelica has 3 to 5 true leaves and the day temperature is 15 to 20°C and the night temperature is 5 to 10°C; the day temperature is more preferably 15°C, and the night temperature is more preferably 10°C; the fertilizer for the first fertilization is preferably organic fertilizer; the organic fertilizer is preferably chicken manure, pig manure or cow manure, more preferably cow manure; the amount of the organic fertilizer is preferably 900 to 950 kg / mu, more preferably 950 kg / mu; there are no special requirements for the application method and purchase source of the organic fertilizer, and the technology well known in the art can be used.

[0033] The time for topdressing described in the present invention is preferably June to August of the year when the black water angelica is transplanted; the fertilizer for topdressing is preferably active bacterial fertilizer; there are no special requirements for the application amount and source of the active bacterial fertilizer, and the technology well known in the art can be used; there are no special requirements for the method and time of weeding and watering described in the present invention, and the technology well known in the art can be used; the present invention mainly focuses on prevention of diseases and insect pests. If the disease is found, it should be cured in time. Common diseases include damping-off disease, blight, and underground pests such as mole crickets and grubs. It is preferred to use conventional drugs according to pest control.

[0034] Experiments have shown that the use of the technical solution provided by the present invention not only improves the utilization rate of saline-alkali land in Northeast China, but also increases the survival rate of blackwater angelica to 90%, thereby improving the yield and quality of blackwater angelica.

[0035] In order to further illustrate the present invention, a method for cultivating black water angelica in saline-alkali land provided by the present invention is described in detail below with reference to the accompanying drawings and examples, but they should not be construed as limiting the scope of protection of the present invention.

[0036] Preparation before the experiment:

[0037] Location: Daqing City in western Heilongjiang Province, in the heart of the Songnen Plain, with geographical coordinates between 124°19′ and 125°12′ east longitude and 45°46′ and 46°55′ north latitude, and a temperate climate.

[0038] Before planting, the soil of the Daqing saline-alkali experimental field was tested and analyzed, and the saline-alkali land was divided into three levels, specifically: slightly salinized soil, with a soil salt content of 0.2% to 0.4%; moderately salinized soil, with a soil salt content of 0.4% to 0.8%; severely salinized soil, with a soil content of 0.8% to 1.6%; the pH value of saline-alkali land is specifically as follows: slightly saline pH is 7.1 to 8.5; moderately saline pH is usually 8.5 to 9.5; severely saline pH ≥ 9.5. It is difficult to ensure the survival rate of plants planted in the above soil conditions. During the plant growth period, the salinized soil content will exceed the standard and the pH value will be too acidic, resulting in the loss of the osmotic pressure regulation function of the plant roots, which will cause great resistance to the root system's water absorption. The harm of saline-alkali land to crops, on the one hand, indirectly changes the physical and chemical properties of the soil, causing the plants to lose a good living environment and nutritional conditions; on the other hand, it directly harms the cells of crops through soil solution, affecting the normal respiration and metabolic functions of crops.

[0039] Standards for digging up black water angelica seedlings: When digging up northeastern black water angelica in mid-to-late April, use one-year-old seedlings, dig to a depth of 20 cm, and require the roots to be intact with the original soil; dig and transplant on the same day, and use a sprayer to spray the roots with moisture to ensure the integrity of the root system; remove one-third of the leaves to reduce water gain in the dry spring weather; when packing and transporting, pack the roots, and require that the original soil of the dug roots does not scatter to ensure the original soil brought out by the roots is good. Use cut straw mats to tightly wrap the roots and then spray water until the straw mats are soaked. Use straw mats to wrap the roots in spring packaging, and the straw mats have good air permeability and moisture retention.

[0040] When digging up Northeastern Black Water Angelica in the off-season (summer), remove one-third of the leaves or split them, or use chemical agents to treat the leaves to reduce water gain. When digging up in hot weather, the roots are seriously dehydrated and the roots are bundled with plastic sheets. In summer, the roots are wrapped with plastic sheets because the water gain increases quickly in hot summer. Wrapping the roots with plastic sheets can prevent water loss. This will prevent the roots from losing water in hot weather. In summer, the Northeastern Black Water Angelica that has been dug up and treated should be stored in a storage box with ice to avoid long-term exposure to the sun, which may cause death.

[0041] Example 1 and Comparative Example 1 were verified at the same time.

[0042] Example 1

[0043] A method for cultivating black water angelica in saline-alkali land, comprising the following steps:

[0044] 1) Determine the saline-alkali land to be planted: Select slightly saline soil for planting black water angelica, that is, saline-alkali land with a soil salt content of 0.2% to 0.4% and a pH value of 7.1 to 8.5 to carry out relevant experiments:

[0045] The area of ​​the experimental plot was 3000 square meters, the soil salt content was 0.2% and the pH value was 7.1.

[0046] 2) Land preparation and fertilization: The saline-alkali experimental plot was leveled mechanically and plowed 50 cm deep with a large rotary tiller. Since the saline-alkali soil was hard and compacted, two plowings were performed to break up the soil in the cultivated layer in order to ensure that it was loose.

[0047] 3) Improvement measures for the ridge planting area: set up planting pits in the cultivation area, that is, dig 50 cm deep and 40 cm wide, and guide the original soil to get the planting pits. Then, in the planting pits, tarpaulin (5 cm holes are punched on the tarpaulin) and 15 cm thick sand are laid in sequence, and 15 cm thick straw is laid on the sand, and the planting matrix is ​​backfilled on the straw to form a ridge with a slope of 30°; the ridge height is 20 cm, the width is 40 cm, and there is a 15 cm wide furrow between the two ridges;

[0048] The planting medium is made of organic fertilizer (cow dung), discarded mushroom bags (purchased from Heilongjiang Bingrong Biotechnology Co., Ltd.; the discarded mushroom bags contain broad-leaved tree chips, cottonseed hulls and bran) and the original soil in the planting pit. They are mixed evenly in a mass ratio of 1:3:2 and then returned to the planting pit.

[0049] Design description: Laying waterproof cloth can block the return of alkali. Drilling holes in the waterproof cloth can make the soil breathable. When it rains, salt and alkali can penetrate through the air holes of the waterproof cloth. Laying fine sand and straw can absorb the underground salt and alkali phenomenon. In a long time, organic fertilizer is decomposed and transformed into humus by microorganisms, which can improve the buffering capacity of the soil. Planting with abandoned mushroom bags mixed with soil can increase the air permeability and water permeability of the soil, allowing the plant roots to absorb a large amount of nutrients. In the later stage, after the mushroom bag material rots, it can be converted into humus and react with sodium carbonate to form sodium humate, reducing the acidity of the soil. Sodium humate can also stimulate the root growth of black water angelica in Northeast China and increase its salt resistance.

[0050] 3) Before planting, irrigate the soil with 1000PPM carbendazim solution for disinfection. The carbendazim solution should be irrigated into each piece of planting soil. The amount of carbendazim used per mu of land is 3 kg. The disinfected ridges are ready for use;

[0051] 4) On the morning of April 28, the black water angelica seedlings were excavated as described above to obtain black water angelica seedlings, and then the roots of the black water angelica seedlings were soaked in water diluted with carbendazim at a ratio of 1000 times for 3 minutes to obtain disinfected black water angelica seedlings;

[0052] 5) On the afternoon of April 28, the black water angelica seedlings were transplanted under shade, and holes were dug with a row spacing of 30 cm and a plant spacing of 30 cm; one black water angelica seedling was transplanted into each hole, arranged in a triangular shape; the transplanting depth was 25 cm, the thickness of the covering soil was 5 cm, the planting root system must be stretched out, and watering was immediately after transplanting, with the soil being moist and 20 cm thick as the standard; shading was carried out for the first 20 days after transplanting, and shading began at 9:00 am on the 21st day, and the shade net was removed at 16:00 pm (the material of the shade net arch shed was 10 cm wide bamboo strips, the arch shed was built to a height of 50 cm from the ridge platform, and the distance between each bamboo strip was 1 m. The shade net arch shed is as follows: Figure 1 As shown), allow the plants and soil to fully contact the environment to prevent root rot and maintain ventilation.

[0053] 6) When the black water angelica seedlings have 3 to 5 true leaves, apply organic fertilizer for the first time, with an application rate of 950 kg / mu. At this time, the day temperature is 15 to 20°C and the night temperature is 5 to 10°C. At the same time, add microbial agents according to conventional fertilization habits (specific products of microbial agents are as follows: Figure 2 As shown, the bacterial agent was purchased from Heilongjiang Tianzhiyuan Agricultural Science and Technology Development Co., Ltd.) and was used to irrigate the roots of the planted Northeast Earthenware Root, with the aim of promoting massive growth and reproduction of the roots, loosening the soil and conserving fertilizer in saline-alkali land and improving the environment.

[0054] 7) From June to August, when the weather is hot, you need to spray the soil frequently to ensure soil moisture, weed and loosen the soil on the planting ridges from time to time, irrigate with large amounts of water when the ground freezes at the end of October to ensure sufficient moisture for the roots, and clean the weeds in the black water angelica seedling bed. In July to early August of the second year after transplanting, use organic fertilizer for base topdressing when the angelica is about to bloom. Both strip application and hole application can be used, with a depth of 8 to 10 cm. Cover with soil and water after application, and carry out routine management. Black water angelica can be harvested from October 13 to 17 of the second year after transplanting.

[0055] Note: Artificially cultivated Northeast native black water angelica has fewer insect pests, but it is very easy to get sick in the rainy season. Prevention is the main thing. If you find any disease, you should cure it in time. Common diseases include damping-off disease, blight, and underground pests such as mole crickets and grubs. Use conventional drugs according to pest control. During the growth period, weeds and diseased branches and leaves in the field should be removed regularly, inferior flower stems should be cut off, and pesticides should be sprayed in time to prevent them.

[0056] Comparative Example 1

[0057] The conventional method for cultivating black water angelica in saline-alkali land comprises the following steps:

[0058] 1) is the same as step 1) in Example 1;

[0059] 2) The saline-alkali experimental plot was leveled mechanically, and then organic fertilizer (fermented cow dung, 1.5 tons per mu) was spread manually. Then a large rotary tiller was used to till the soil to a depth of 30 to 40 cm. The soil was cleaned and the seedbed was arranged manually with a rake, and ridges were set up; the ridge height was 20 to 25 cm, the width was 30 to 35 cm, and the width of the ridge ditch was 20 to 25 cm.

[0060] 3) Transplanting black water angelica: the same as steps 4) and 5) in Example 1;

[0061] 4) Field management of Heishui Angelica: Same as steps 6) and 7) in attempt 1).

[0062] The growth potential and survival rate of the black water angelica seedlings in Example 1 and Comparative Example 1 were statistically analyzed in June of the second year after the black water angelica was transplanted. The results are shown in Table 1.

[0063] Table 1 Survival rate and growth potential of Heishui Angelicae Sinensis in different treatments

[0064] deal with Survival rate Growth Example 1 90％ Height 130-145cm, stem 2.0-2.3cm, 22-25 peduncles Comparative Example 1 80％ Height 105-110cm, stem 1.5-1.8cm, 20-22 peduncles

[0065] It can be seen from Table 1 that after adopting the technical solution provided by the present invention, the survival rate of black water angelica is as high as 90% and the growth is good.

[0066] In summary, the technical solution provided by the present invention not only improves the utilization rate of saline-alkali land in Northeast China, but also increases the survival rate of blackwater angelica to 90%, thereby improving the yield and quality of blackwater angelica.

[0067] Although the above embodiment describes the present invention in detail, it is only a part of the embodiments of the present invention, not all of the embodiments. People can also obtain other embodiments based on this embodiment without creativity, and these embodiments all fall within the protection scope of the present invention.

Claims

1. A method for cultivating black water angelica in saline-alkali land, characterized in that: The steps include: The saline-alkali land is ploughed and a planting pit is set, a waterproof cloth, sand and straw are filled in the planting pit in sequence, and a planting matrix is ​​backfilled on the straw to obtain a ridge with a slope of 30 to 35 degrees; Sterilizing the black water angelica seedlings, transplanting the sterilized black water angelica seedlings onto the sterilized ridges, and watering them; harvesting them in October of the second year after transplanting to obtain black water angelica; The planting matrix includes organic fertilizer, waste edible fungus bags and original soil in the planting pit; the mass ratio of the organic fertilizer, waste edible fungus bags and original soil in the planting pit is 1:3:2; The waterproof cloth is provided with holes.

2. The method according to claim 1, characterized in that The diameter of the holes is 5 to 7 cm; the number of holes on the waterproof cloth is 200 to 300 per square meter; The thickness of the sand is 15 cm to 18 cm; The particle size of the rice straw is greater than 0 and less than or equal to 5 cm, and the thickness is 15 to 20 cm.

3. The method according to claim 1, characterized in that The organic fertilizer includes fermented chicken manure, pig manure or cow manure.

4. The method according to claim 1, characterized in that: The height of the ridge is 20-25 cm, and the width is 40-45 cm; A ridge ditch is formed between two adjacent ridge platforms; the width of the ridge ditch is 15 to 17 cm.

5. The method according to claim 1, characterized in that Transplanting is performed under shade conditions, digging holes with a row spacing of 30 to 33 cm and a plant spacing of 30 to 33 cm, and transplanting one black water angelica seedling into each hole; The transplanting depth is 25 to 30 cm, and the thickness of the covering soil is 10 to 15 cm.

6. The method according to claim 5, characterized in that The shading time is 1 to 20 days after transplanting.

7. The method according to claim 1, characterized in that The saline-alkali land has a salt content of 0.2% to 0.4% and a pH value of 7.1 to 8.

5.

8. The method according to claim 1, characterized in that The thickness of the tillage is 50 to 55 cm; The planting pit has a depth of 40 to 50 cm and a width of 35 to 40 cm.

9. The method according to claim 1, characterized in that: The method for disinfecting black water angelica seedlings comprises: soaking the root system of the black water angelica seedlings in a carbendazim solution for 10 to 20 minutes; The agent used for ridge disinfection is carbendazim.

10. The method according to claim 1, characterized in that When watering, the thickness of the moist soil should be 30 to 35 cm.

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