CN108925339A - A kind of implantation methods of selenium-rich pellet bamboo - Google Patents

Abstract

The invention discloses a kind of implantation methods of selenium-rich pellet bamboo, include the following steps：1) female bamboo selection and protection；2) female bamboo plants pre-treatment；3) it transplants；4) tending ot young growth；5) it grows into forest tending management；6) improve growth condition.

Description

A kind of planting method of selenium-enriched red bamboo

technical field

The invention relates to the technical field of red bamboo planting, in particular to a planting method of selenium-enriched red bamboo.

Background technique

Red bamboo, also known as powder single bamboo (scientific name: Bambusa chungii McClure), is a plant of the Poaceae Bougainvillea genus. The culm is 3-7m high, about 5cm in diameter, and the top is very long drooping. The surface of the culm is densely covered with white powder when it is young. The sheath is hard, greenish-yellow when fresh, covered with white powder, with light-colored short hairs all over the back; there is a wider corky ring on the sheath behind the sheath; the sheath ears are long and narrow; the sheath leaves are reversed, ovate-lanceolate Shaped, with bristles near base. Each twig has 4-8 leaves, the leaves are linear-lanceolate, 20cm long, 2cm wide, thin in texture, glabrous or sparsely hairy on the back. Flowering branches are very slender, without leaves, usually only 1 or 2 false spikelets per node, the latter is broadly ovate, up to 2 cm long, glabrous, apex acuminate, contains 4 or 5 small flowers, the latter is shaped Swollen, the bottom 1 or 2 florets are larger, the upper 1 or 2 are degenerated; budding bracts 1 or 2; glumes 1 or 2; spikelet internodes glabrous, very short, but upward Gradually longer, soft, hollow; palea broadly ovate, 9-12mm long, apex blunt but with a pointed tip, back glabrous, margin ciliated; inner palea and palea nearly equal in length, apex blunt or truncate Flat, longitudinal veins inconspicuous, glabrous on ridge, ciliated at margin; scales 3, nearly equal, with coarse hairs on back, ciliated at apex; anther apex with short thin awn-like point; ovary apex is scabrous Hairy, styles 1-2 mm long, stigmas 3 or 2, sparsely feathery. The pericarp of the immature fruit hardens in the upper part and becomes triangular after drying. The mature caryopsis is ovate, 8-9 mm long, dark brown, with grooves on the ventral surface.

Danzhu, a specialty product in southern China, is distributed in Guangdong, Guangxi and Hunan. It likes warm and humid climate and loose and fertile sandy loam soil, and is generally planted by streams, river banks and villages. Bamboo has strong toughness, long and flat internodes, and is a medium-to-high-grade splitting material, which can be used for fine weaving. Bamboo pith and bamboo green are used for medicinal purposes. Bamboo species for good landscaping. It is an excellent bamboo species widely cultivated in Guangdong, Guangxi, Hunan and some parts of Fujian. It has the characteristics of fast growth, fast forest formation, short cutting period, strong adaptability, and easy reproduction. Its vertical distribution reaches an altitude of 500m, but it grows best on gentle slopes below 300m, flat land, mountain foot and river banks. It grows normally no matter on acid soil or calcareous soil. The average annual temperature of its distribution area is 18.9-20.0℃, and the annual The precipitation is 999.1-2136mm.

Selenium is an essential trace element for the human body. Selenium participates in the synthesis of various selenium-containing enzymes and selenoproteins in the human body. Among them, glutathione peroxidase catalyzes the conversion of hydroperoxide or lipid peroxide into water or various alcohols in vivo, eliminates the attack of free radicals on biofilms, and protects biofilms from oxidative damage; Selenium participates in the formation of iodothyronine deiodinase. In the body, selenium and vitamin E cooperate to protect cell membranes and prevent the oxidation of unsaturated fatty acids. Trace amounts of selenium have anti-cancer effects and protect the liver. Selenium can improve human immunity, promote the proliferation of lymphocytes and the synthesis of antibodies and immunoglobulins. Selenium has obvious inhibitory and protective effects on colon cancer, skin cancer, liver cancer, breast cancer and other cancers, and its intermediate metabolite methyl enol in the body has strong anticancer activity. Selenium, vitamin E, allicin, linoleic acid, germanium, zinc and other nutrients have synergistic antioxidant effects and increase antioxidant activity. At the same time, selenium has the effect of reducing and alleviating the toxicity of heavy metals.

The important physiological functions of selenium on the human body have attracted more and more attention from scientists from various countries, and all countries have formulated recommended intakes of selenium nutrition according to their own conditions. The recommended daily intake (RDI) of selenium for adult healthy men and women in the United States is 70 μg/day and 55 μg/day, respectively, while that in the United Kingdom is 75 μg/day and 60 μg/day. The adult intake recommended by the Chinese Nutrition Society is 50-250 micrograms per day.

Selenium in the human body is mainly obtained from daily diet, therefore, the content of selenium in food directly affects people's daily selenium intake. The selenium content of food is greatly affected by geography, and the difference of selenium content in soil causes great differences in the selenium content of food in different places. If the selenium content of the soil is below 0.6 mg/kg, it belongs to the selenium-deficient soil. In my country, except for Xiayi in Henan Province and Ziyang in Shaanxi Province, 72% of the country's land is selenium-deficient or selenium-deficient soil. The selenium content of food in these areas is generally between 0.01-0.06 mg/kg, while the selenium content of food is less than 0.02 mg/kg, it is regarded as a serious selenium-deficient food, and long-term intake of serious selenium-deficient food will inevitably cause selenium deficiency disease.

The Chinese Nutrition Society conducted a survey of 13 provinces and cities in my country and showed that the average daily selenium intake for adults is 26-32 micrograms, which is far from the minimum recommended by the Chinese Nutrition Society of 50 micrograms. With the development of modern industry and the intensification of environmental pollution, soil selenium deficiency will inevitably lead to the production of a large number of low-selenium plants, resulting in a low-selenium food chain, resulting in low selenium in human food sources, seriously affecting health.

Contents of the invention

The object of the present invention is to provide a planting method of selenium-enriched red bamboo, so as to achieve the effects of high yield and income of red bamboo and stable content of selenium element.

A kind of planting method of selenium-enriched red bamboo of the present invention, comprises the steps:

1) Selection and protection of mother bamboo: choose 1-year-old bamboo plants with low branching or full hidden buds, strong and no pests and diseases as mother bamboos, with a breast diameter of 1.5-4cm, bamboo stalks with 3-4 discs of branches, 1-2m long, cut Remove the bamboo shoots; dig the mother bamboo, do not split the bamboo bushes and protect the shoots and fibrous roots on the bamboo bushes, and wrap the bushes with wet straw;

2) Pre-planting treatment of mother bamboo: Peel off the bamboo sheaths on the bamboo stalks to expose the bamboo shoots and hidden roots, dip the roots with ABT rooting powder mud to promote rooting;

3) Planting: From February to March, the distance between plants and rows is 2×3m, and the hole is rectangular 1×0.5×0.5m. When planting, the mother bamboo is handled with care, and the soil is tightly connected;

4) Young forest tending: Weeding and loosening the soil around the bamboo plants in late April of the year of planting, and cultivating the plants once in May and September of the next 2 years, and applying 30 kg of manure or 1-2 kg of compound fertilizer to each plant to promote growth. bamboo shoots;

5) Forest tending management:

Reasonable harvesting: felling in winter and spring, banning knives during the bamboo shoot period, only cutting 3-year-old bamboo, not cutting 1-year-old and 2-year-old young bamboo, cutting obliquely close to the ground, cutting rotten bamboo bushes to promote their rot;

Correct thinning of bamboo shoots: thinning and withdrawing bamboo shoots for early and late bamboo shoots;

Protect bamboo shoots and raise bamboo: pay attention to prevent human and livestock damage, prevent and control diseases and insect pests, and cultivate bamboo with soil;

6) Improve bamboo growth conditions:

Weeding and tending: timely cut down the weeds and shrubs competing for nutrients in the bamboo forest;

Soil loosening and reclamation: carried out in bamboo forests with heavy and hardened soil, with a depth of 20cm;

Fertilizing bamboo: spraying selenium-enriched nutrient solution and daily fertilization;

The selenium-enriched nutrient solution is obtained by the following preparation method:

1. After dissolving the selenium powder with concentrated nitric acid, prepare a selenium solution with a concentration of 0.5-1.0 mg selenium/ml with deionized water;

②Add carrageenan to 0.5M sodium chloride solution in an amount of 2.0-4.0w/v%, then add mannitol equivalent to 0.001-0.002 times the weight of carrageenan, and then heat and stir at 75-100°C, Make into a uniform carrageenan sol;

③React the carrageenan sol solution obtained in ② at 30-50°C for 2-4 hours under the condition of pH=0.5-2.5, and then continue to react at 25-30°C for 12-24 hours;

④ Add 95% ethanol to precipitate the selenized product according to 1-2 times the volume of the reaction solution in ③, filter, then wash the filtrate with 95v/v% ethanol and absolute ethanol in turn, and ventilate and dry the filtrate at 75°C ; Pulverized, obtained by sieving with 80 meshes, adding water to form a solution, and obtained.

The carrageenan of the present invention is preferably Kappa-carrageenan or Lambda-carrageenan.

Said adding water to form a solution, preferably adding water to form a solution of 1.0-3.0w/w%.

The correct thinning of bamboo shoots described in step 5) can reduce the unnecessary consumption of bamboo forest nutrients and concentrate nutrients for the growth of bamboo shoots and young bamboos for early and late bamboo shoots.

The step 5) of the present invention protects the described bamboo shoots and raises bamboos. After the bamboo shoots are unearthed, they are easily affected by natural factors (such as climate, soil, pests, etc.) and human and animal activities.

The spraying of the selenium-enriched nutrient solution in step 6) is spraying once a week in summer and autumn, and spraying bamboo leaves and root soil.

The daily fertilization described in step 6) is preferably based on organic fertilizers, supplemented by chemical fertilizers, and a deep ditch is excavated around the bamboo bushes in summer and autumn, with a depth of 20cm and a width of 25cm, and 800-1200kg/mu of soil miscellaneous fertilizers or cake fertilizer 150 -200kg/mu, ditch around the bamboo forest in spring and apply 800-1000kg/mu of human and livestock manure or 10-20kg/mu of urea, 30 bamboos per clump.

Compared with the prior art, the present invention has the advantages of:

1. In the prior art, sodium selenite, sodium selenate, selenium-enriched yeast, etc. are generally used as sources of selenium-enriched substances, but sodium selenite and sodium selenate are used as inorganic selenium, and the absorption rate of red bamboo is low, and the utilization The water solubility of selenium-enriched yeast is not good, generally half-soluble in water, and there are more sediments, so the utilization rate of red bamboo is low. However, using the selenized carrageenan obtained in the present invention, the absorption rate and utilization rate of red bamboo are high, and the effect is good. The organic selenium content of red bamboo reaches 0.048-0.054 mg/kg after testing.

2. The selenized carrageenan obtained in the prior art is off-white, light yellow to khaki powder, slightly seaweed, generally water-soluble, and precipitated. However, the present invention adds nectar during the preparation process of selenized carrageenan Alcohol can significantly improve the water solubility of the obtained selenized carrageenan, which has good solubility and no obvious precipitation, which is beneficial to the absorption of red bamboo.

3. Every year in summer and autumn, that is, from June to September, the new leaves of Hsinchu will be harmed by bamboo leaf rollers, and the ratio is 30-50%. However, using the method of the present invention and spraying selenium-enriched nutrient solution can effectively reduce The proportion of new leaves being harmed by bamboo leaf tortrix is reduced to about 3%.

Detailed ways

The present invention will be further described below with embodiment, but the present invention is not limited to these embodiments.

Example 1:

A planting method of selenium-enriched red bamboo, comprising the steps of:

1) Selection and protection of mother bamboo: choose 1-year-old bamboo plants with low branching or full hidden buds, strong and no pests and diseases as mother bamboos, with a breast diameter of 1.5-4cm, bamboo stalks with 3-4 discs of branches, 1-2m long, cut Remove the bamboo shoots; dig the mother bamboo, do not split the bamboo bushes and protect the shoots and fibrous roots on the bamboo bushes, and wrap the bushes with wet straw;

2) Pre-planting treatment of mother bamboo: Peel off the bamboo sheaths on the bamboo stalks to expose the bamboo shoots and hidden roots, dip the roots with ABT rooting powder mud to promote rooting;

3) Planting: From February to March, the distance between plants and rows is 2×3m, and the hole is rectangular 1×0.5×0.5m. When planting, the mother bamboo is handled with care, and the soil is tightly connected;

4) Young forest tending: Weeding and loosening the soil around the bamboo plants in late April of the year of planting, and cultivating the plants once in May and September of the next 2 years, and applying 30 kg of manure or 1-2 kg of compound fertilizer to each plant to promote growth. bamboo shoots;

5) Forest tending management:

Reasonable harvesting: felling in winter and spring, banning knives during the bamboo shoot period, only cutting 3-year-old bamboo, not cutting 1-year-old and 2-year-old young bamboo, cutting obliquely close to the ground, cutting rotten bamboo bushes to promote their rot;

Correct thinning of bamboo shoots: thinning and withdrawing bamboo shoots for early and late bamboo shoots;

Protect bamboo shoots and raise bamboo: pay attention to prevent human and livestock damage, prevent and control diseases and insect pests, and cultivate bamboo with soil;

6) Improve bamboo growth conditions:

Weeding and tending: timely cut down the weeds and shrubs competing for nutrients in the bamboo forest;

Soil loosening and reclamation: carried out in bamboo forests with heavy and hardened soil, with a depth of 20cm;

Fertilizing and raising bamboo: spraying selenium-rich nutrient solution once a week in summer and autumn, spraying bamboo leaves and root soil, the selenium-rich nutrient solution is obtained by the following preparation method:

1. After dissolving the selenium powder with concentrated nitric acid, prepare a selenium solution with a concentration of 0.5-1.0 mg selenium/ml with deionized water;

②Add Kappa-carrageenan to 0.5M sodium chloride solution in an amount of 2.0-4.0w/v%, then add mannitol equivalent to 0.001-0.002 times the weight of carrageenan, and then heat at 75-100°C Stir to make a uniform carrageenan sol;

③React the carrageenan sol solution obtained in ② at 30-50°C for 2-4 hours under the condition of pH=0.5-2.5, and then continue to react at 25-30°C for 12-24 hours;

④ Add 95% ethanol to precipitate the selenized product according to 1-2 times the volume of the reaction solution in ③, filter, then wash the filtrate with 95v/v% ethanol and absolute ethanol in turn, and ventilate and dry the filtrate at 75°C ; Pulverized, obtained by sieving with 80 meshes, added water to form a 1.0w/w% solution, obtained;

Daily fertilization: mainly organic fertilizers, supplemented by chemical fertilizers, dig a deep ditch around the bamboo bushes in summer and autumn, 20cm deep, 25cm wide, apply soil miscellaneous fertilizer 800-1200kg/mu or cake fertilizer 150-200kg/mu, in spring Ditch around the bamboo forest and apply 800-1000kg/mu of human and livestock manure or 10-20kg/mu of urea, and 30 bamboos per clump.

Example 2:

A planting method of selenium-enriched red bamboo, comprising the steps of:

1) Selection and protection of mother bamboo: choose 1-year-old bamboo plants with low branching or full hidden buds, strong and no pests and diseases as mother bamboos, with a breast diameter of 1.5-4cm, bamboo stalks with 3-4 discs of branches, 1-2m long, cut Remove the bamboo shoots; dig the mother bamboo, do not split the bamboo bushes and protect the shoots and fibrous roots on the bamboo bushes, and wrap the bushes with wet straw;

2) Pre-planting treatment of mother bamboo: Peel off the bamboo sheaths on the bamboo stalks to expose the bamboo shoots and hidden roots, dip the roots with ABT rooting powder mud to promote rooting;

3) Planting: From February to March, the distance between plants and rows is 2×3m, and the hole is rectangular 1×0.5×0.5m. When planting, the mother bamboo is handled with care, and the soil is tightly connected;

4) Young forest tending: Weeding and loosening the soil around the bamboo plants in late April of the year of planting, and cultivating the plants once in May and September of the next 2 years, and applying 30 kg of manure or 1-2 kg of compound fertilizer to each plant to promote growth. bamboo shoots;

5) Forest tending management:

Reasonable harvesting: felling in winter and spring, banning knives during the bamboo shoot period, only cutting 3-year-old bamboo, not cutting 1-year-old and 2-year-old young bamboo, cutting obliquely close to the ground, cutting rotten bamboo bushes to promote their rot;

Correct thinning of bamboo shoots: thinning and withdrawing bamboo shoots for early and late bamboo shoots;

Protect bamboo shoots and raise bamboo: pay attention to prevent human and livestock damage, prevent and control diseases and insect pests, and cultivate bamboo with soil;

6) Improve bamboo growth conditions:

Weeding and tending: timely cut down the weeds and shrubs competing for nutrients in the bamboo forest;

Soil loosening and reclamation: carried out in bamboo forests with heavy and hardened soil, with a depth of 20cm;

Fertilizing and raising bamboo: spraying selenium-rich nutrient solution once a week in summer and autumn, spraying bamboo leaves and root soil, the selenium-rich nutrient solution is obtained by the following preparation method:

1. After dissolving the selenium powder with concentrated nitric acid, prepare a selenium solution with a concentration of 0.5-1.0 mg selenium/ml with deionized water;

②Add Lambda-carrageenan to 0.5M sodium chloride solution in an amount of 2.0-4.0w/v%, then add mannitol equivalent to 0.001-0.002 times the weight of carrageenan, and then heat at 75-100°C Stir to make a uniform carrageenan sol;

③React the carrageenan sol solution obtained in ② at 30-50°C for 2-4 hours under the condition of pH=0.5-2.5, and then continue to react at 25-30°C for 12-24 hours;

④ Add 95% ethanol to precipitate the selenized product according to 1-2 times the volume of the reaction solution in ③, filter, then wash the filtrate with 95v/v% ethanol and absolute ethanol in turn, and ventilate and dry the filtrate at 75°C ; Pulverized, obtained by sieving with 80 meshes, added water to form a 2.0w/w% solution to obtain;

Daily fertilization: mainly organic fertilizers, supplemented by chemical fertilizers, dig a deep ditch around the bamboo bushes in summer and autumn, 20cm deep, 25cm wide, apply soil miscellaneous fertilizer 800-1200kg/mu or cake fertilizer 150-200kg/mu, in spring Ditch around the bamboo forest and apply 800-1000kg/mu of human and livestock manure or 10-20kg/mu of urea, and 30 bamboos per clump.

Example 3:

A planting method of selenium-enriched red bamboo, comprising the steps of:

1) Selection and protection of mother bamboo: choose 1-year-old bamboo plants with low branching or full hidden buds, strong and no pests and diseases as mother bamboos, with a breast diameter of 1.5-4cm, bamboo stalks with 3-4 discs of branches, 1-2m long, cut Remove the bamboo shoots; dig the mother bamboo, do not split the bamboo bushes and protect the shoots and fibrous roots on the bamboo bushes, and wrap the bushes with wet straw;

2) Pre-planting treatment of mother bamboo: Peel off the bamboo sheaths on the bamboo stalks to expose the bamboo shoots and hidden roots, dip the roots with ABT rooting powder mud to promote rooting;

3) Planting: From February to March, the distance between plants and rows is 2×3m, and the hole is rectangular 1×0.5×0.5m. When planting, the mother bamboo is handled with care, and the soil is tightly connected;

4) Young forest tending: Weeding and loosening the soil around the bamboo plants in late April of the year of planting, and cultivating the plants once in May and September of the next 2 years, and applying 30 kg of manure or 1-2 kg of compound fertilizer to each plant to promote growth. bamboo shoots;

5) Forest tending management:

Reasonable harvesting: felling in winter and spring, banning knives during the bamboo shoot period, only cutting 3-year-old bamboo, not cutting 1-year-old and 2-year-old young bamboo, cutting obliquely close to the ground, cutting rotten bamboo bushes to promote their rot;

Correct thinning of bamboo shoots: thinning and withdrawing bamboo shoots for early and late bamboo shoots;

Protect bamboo shoots and raise bamboo: pay attention to prevent human and livestock damage, prevent and control diseases and insect pests, and cultivate bamboo with soil;

6) Improving the growth conditions of bamboo forests:

Weeding and tending: timely cut down the weeds and shrubs competing for nutrients in the bamboo forest;

Soil loosening and reclamation: carried out in bamboo forests with heavy and hardened soil, with a depth of 20cm;

Fertilizing and raising bamboo: spraying selenium-rich nutrient solution once a week in summer and autumn, spraying bamboo leaves and root soil, the selenium-rich nutrient solution is obtained by the following preparation method:

1. After dissolving the selenium powder with concentrated nitric acid, prepare a selenium solution with a concentration of 0.5-1.0 mg selenium/ml with deionized water;

②Add Kappa-carrageenan to 0.5M sodium chloride solution in an amount of 2.0-4.0w/v%, then add mannitol equivalent to 0.001-0.002 times the weight of carrageenan, and then heat at 75-100°C Stir to make a uniform carrageenan sol;

③React the carrageenan sol solution obtained in ② at 30-50°C for 2-4 hours under the condition of pH=0.5-2.5, and then continue to react at 25-30°C for 12-24 hours;

④ Add 95% ethanol to precipitate the selenized product according to 1-2 times the volume of the reaction solution in ③, filter, then wash the filtrate with 95v/v% ethanol and absolute ethanol in turn, and ventilate and dry the filtrate at 75°C ; Pulverized, obtained by sieving with 80 meshes, added water to form a 3.0w/w% solution, obtained;

Daily fertilization: mainly organic fertilizers, supplemented by chemical fertilizers, dig a deep ditch around the bamboo bushes in summer and autumn, 20cm deep, 25cm wide, apply soil miscellaneous fertilizer 800-1200kg/mu or cake fertilizer 150-200kg/mu, in spring Ditch around the bamboo forest and apply 800-1000kg/mu of human and livestock manure or 10-20kg/mu of urea, and 30 bamboos per clump.

Comparative example 1:

Same as Example 3, the difference is that no selenium-enriched nutrient solution is used.

Comparative example 2:

Same as Example 3, the difference is that no mannitol is added during the preparation of the selenium-enriched nutrient solution.

Comparative example 3:

Same as Example 3, the selenium-enriched nutrient solution is obtained by the following preparation method:

① Raw material preparation: prepare 100 parts of purified water, 0.6-1.0 parts of L-selenomethionine, and 0.1-0.3 parts of hydroxyethyl cellulose;

②Mix the raw materials in step ① and grind to obtain a slurry, sterilize, cool to 25°C, insert 5-10% by volume into the mature liquid strain of Bacillus subtilis, put it into a fermenter, and put it into a fermenter. Sterile air is passed into the medium for stirring and fermenting. After the fermentation is completed, the temperature is quickly raised to 70° C. and kept for 0.5-1.0 h to inactivate the obtained.

Experimental example:

1, the red bamboo that test embodiment and comparative example method obtains, detect the organic selenium element content of red bamboo;

2. Calculate the proportion of new leaves from the new bamboos of Danzhu that are harmed by bamboo leaf rollers.

Claims (5)

1. a planting method of selenium-enriched red bamboo, is characterized in that, comprises the steps: 1) Selection and protection of mother bamboo: choose 1-year-old bamboo plants with low branching or full hidden buds, strong and no pests and diseases as mother bamboos, with a breast diameter of 1.5-4cm, bamboo stalks with 3-4 discs of branches, 1-2m long, cut Remove the bamboo shoots; dig the mother bamboo, do not split the bamboo bushes and protect the shoots and fibrous roots on the bamboo bushes, and wrap the bushes with wet straw; 2) Pre-planting treatment of mother bamboo: Peel off the bamboo sheaths on the bamboo stalks to expose the bamboo shoots and hidden roots, dip the roots with ABT rooting powder mud to promote rooting; 3) Planting: From February to March, the distance between plants and rows is 2×3m, and the hole is rectangular 1×0.5×0.5m. When planting, the mother bamboo is handled with care, and the soil is tightly connected; 4) Young forest tending: Weeding and loosening the soil around the bamboo plants in late April of the year of planting, and cultivating the plants once in May and September of the next 2 years, and applying 30 kg of manure or 1-2 kg of compound fertilizer to each plant to promote growth. bamboo shoots; 5) Forest tending management: Reasonable harvesting: felling in winter and spring, banning knives during the bamboo shoot period, only cutting 3-year-old bamboo, not cutting 1-year-old and 2-year-old young bamboo, cutting obliquely close to the ground, cutting rotten bamboo bushes to promote their rot; Correct thinning of bamboo shoots: thinning and withdrawing bamboo shoots for early and late bamboo shoots; Protect bamboo shoots and raise bamboo: pay attention to prevent human and livestock damage, prevent and control diseases and insect pests, and cultivate bamboo with soil; 6) Improving the growth conditions of bamboo forests: Weeding and tending: timely cut down the weeds and shrubs competing for nutrients in the bamboo forest; Soil loosening and reclamation: carried out in bamboo forests with heavy and hardened soil, with a depth of 20cm; Fertilizing bamboo: spraying selenium-enriched nutrient solution and daily fertilization; The selenium-enriched nutrient solution is obtained by the following preparation method: 1. After dissolving the selenium powder with concentrated nitric acid, prepare a selenium solution with a concentration of 0.5-1.0 mg selenium/ml with deionized water; ②Add carrageenan to 0.5M sodium chloride solution in an amount of 2.0-4.0w/v%, then add mannitol equivalent to 0.001-0.002 times the weight of carrageenan, and then heat and stir at 75-100°C, Make into a uniform carrageenan sol; ③React the carrageenan sol solution obtained in ② at 30-50°C for 2-4 hours under the condition of pH=0.5-2.5, and then continue to react at 25-30°C for 12-24 hours; ④ Add 95% ethanol to precipitate the selenized product according to 1-2 times the volume of the reaction solution in ③, filter, then wash the filtrate with 95v/v% ethanol and absolute ethanol in turn, and ventilate and dry the filtrate at 75°C ; Pulverized, obtained by sieving with 80 meshes, adding water to form a solution, and obtained. 2. the planting method of a kind of selenium-enriched red bamboo according to claim 1, is characterized in that: the described spraying selenium-enriched nutrient solution of step 6) is spraying once a week in summer and autumn, spraying bamboo leaves and root soil. 3. the planting method of a kind of selenium-enriched red bamboo according to claim 1, is characterized in that: the daily fertilization described in step 6) is based on organic fertilizer, supplemented by chemical fertilizer, and blooms around the bamboo bushes in summer and autumn. Dig a deep ditch with a depth of 20cm and a width of 25cm. Apply 800-1200kg/mu of soil miscellaneous fertilizer or 150-200kg/mu of cake fertilizer. In spring, ditch around the bamboo forest and apply 800-1000kg/mu of manure or urea 10-20kg/mu. There are 30 bamboos per clump. 4. The planting method of a kind of selenium-enriched red bamboo according to claim 1, characterized in that: the carrageenan described in step 6) is Kappa-carrageenan or Lambda-carrageenan. 5 . The planting method of selenium-enriched red bamboo according to claim 3 , characterized in that: the solution prepared by adding water in step 6) is 1.0-3.0 w/w% by adding water.