Method for producing bamboo shoots from phyllostachys pubescens in summer and autumn and producing bamboo shoots all year round

Abstract

The invention provides a method for producing bamboo shoots from phyllostachys pubescens in summer and autumn and annual production of bamboo shoots, and belongs to the technical field of bamboo shoot production. According to the method for producing the bamboo shoots from the phyllostachys pubescens in summer and autumn, bamboo rhizomes are cultivated in summer mainly through measures such as trench digging and sufficient fertilizer and water management so as to promote growth of the bamboo rhizomes, then bamboo shoot bud differentiation of the bamboo rhizomes is promoted, and the purpose of producing the bamboo shoots in summer and autumn is achieved. According to the characteristics that bamboo rhizomes grow forward, fertile, loose and moist soil, a bamboo rhizome growth soil environment is built, and the yield of bamboo shoots is increased. By means of the method, bamboo shoots can be produced all year round, the fresh bamboo shoot slack season market requirement is met, and the bamboo forest income is increased.

Description

Technical Field

[0001] The invention belongs to the technical field of bamboo shoot production, and in particular relates to a method for producing bamboo shoots in summer and autumn and producing bamboo shoots all year round. Background Art

[0002] Since ancient times, bamboo has been considered a tough plant that can survive in poor and harsh environments. As one of the important economic bamboo species, large-scale planting of bamboo can prevent soil erosion, regulate local climate, and purify the air. It is also known as one of the "mountain delicacies" and is known as the "first vegetarian product". It is rich in nutrients, especially cellulose.

[0003] Hubei Xianning is rich in bamboo resources, covering an area of ​​about 1.5 million mu. Bamboo shoots in bamboo forests generally differentiate once a year, starting to germinate and differentiate into shoots around the beginning of autumn (August). In early winter, the shoots are enlarged, with yellow sheaths and a hairy outer layer, which are called "winter shoots". Some winter shoots that grow from shallow whips begin to break through the soil in winter, and a small amount of winter shoots can be produced from December to February of the following year. However, during the low temperature period in winter, most bamboo shoots are dormant. When the temperature rises in spring, they continue to grow and emerge from the soil, which are called "spring shoots". The harvesting time of "spring shoots" generally starts in late March, peaks in April, and can last until early May. According to the ancient medical book "Compendium of Materia Medica", bamboo shoots have the effects of "benefiting the nine orifices, promoting blood circulation, resolving phlegm and relieving food bloating". In addition, Nanzhu also has health benefits such as weight loss, lowering blood lipids, and anti-aging. Therefore, the demand for Nanzhu bamboo shoots is increasing day by day. However, under natural conditions, fresh bamboo shoots cannot be produced in summer and autumn, and cannot meet market demand. Summary of the invention

[0004] The invention provides a method for producing bamboo shoots of Phyllostachys pubescens in summer and autumn and producing bamboo shoots all year round. The method cultivates bamboo whips by taking a series of measures to overcome the lack of fertilizer and water in bamboo forests and the influence of high temperature in summer and autumn, thereby producing whip shoots all year round.

[0005] The invention provides a method for producing bamboo shoots in summer and autumn, comprising the following steps: after the spring bamboo shoots are harvested, a groove is set in a bamboo forest vacant land next to the mother bamboo, mixed fertilizer and soil are filled into the groove, and the air temperature is adjusted to 18-30°C and the air humidity is above 75%;

[0006] The components of the mixed fertilizer include organic fertilizer, nitrogen fertilizer, phosphorus fertilizer, potash fertilizer and agricultural waste.

[0007] In a preferred embodiment of the present invention, the number of standing mother bamboos is 200 to 260 per mu.

[0008] In a preferred embodiment of the present invention, grooves are set on a bamboo forest ground next to 2-5 year-old mother bamboos in early May. The grooves are set along the direction of bamboo whips or contour lines, with a depth of 40-60 cm and a width of 50-60 cm.

[0009] In a preferred embodiment of the present invention, the groove is 40 to 50 cm away from the mother bamboo.

[0010] In a preferred embodiment of the present invention, the mixed fertilizer comprises the following components: 2000-3000 kg / mu of organic fertilizer, 300-350 kg / mu of 42% potassium sulfate compound fertilizer, 10-15 kg / mu of urea and 5000-6000 kg / mu of old rice husk.

[0011] In a preferred embodiment of the present invention, the mixed fertilizer further comprises nano-selenium fertilizer, and the dosage of the nano-selenium fertilizer is 1000-1500 mL / mu.

[0012] In a preferred embodiment of the present invention, the mixed fertilizer is filled into the trench in a method of one layer of mixed fertilizer and one layer of soil, or the mixed fertilizer and soil are mixed and then backfilled as a whole.

[0013] In a preferred embodiment of the present invention, when the temperature on the groove surface exceeds 32°C, a layer of straw is laid on the groove surface; when the temperature on the straw surface exceeds 35°C, an arch shed is built on the straw, and a cooling agent is sprayed on the surface of the arch shed.

[0014] The present invention also provides application of the method in annual production of bamboo shoots of Phyllostachys pubescens.

[0015] The present invention also provides a method for producing bamboo shoots of Phyllostachys pubescens all year round, comprising the steps of harvesting bamboo shoots of Phyllostachys pubescens in summer and autumn, and then carrying out conventional tending to harvest winter bamboo shoots and spring bamboo shoots of Phyllostachys pubescens.

[0016] Beneficial effects: The present invention provides a method for producing bamboo shoots in summer and autumn from bamboo shoots. The method mainly cultivates bamboo shoots in summer through measures such as digging trenches and sufficient fertilizer and water management to promote the growth of bamboo shoots, and then promotes the differentiation of bamboo shoot buds from bamboo shoots, so as to meet the purpose of producing bamboo shoots in summer and autumn. The method of the present invention breaks through the natural production time of bamboo shoots in bamboo forests, and can promote the differentiation of shoot buds of some dormant bamboo shoots in the first year, and can also promote the second differentiation of some differentiated bamboo shoots that have produced shoots and withdrawn shoots, and then promote the rapid growth of shoots, so that shoots can be produced in summer and autumn. The present invention creates a soil environment for bamboo shoot growth based on the characteristics of bamboo shoots that grow forward and towards fertile, loose and moist soil, and increases the yield of bamboo shoots. The method of the present invention can produce bamboo shoots all year round, meet the market demand for fresh shoots in the off-season, and increase the income of bamboo forests. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1Schematic diagram of digging trenches for bamboo forest. DETAILED DESCRIPTION

[0018] The invention provides a method for producing bamboo shoots in summer and autumn, comprising the following steps: after the spring bamboo shoots are harvested, a groove is set in a bamboo forest vacant land next to the mother bamboo, mixed fertilizer and soil are filled into the groove, and the air temperature is adjusted to 18-30°C and the air humidity is above 75%;

[0019] The components of the mixed fertilizer include organic fertilizer, nitrogen fertilizer, phosphorus fertilizer, potash fertilizer and agricultural waste.

[0020] The present invention selects a bamboo forest with natural bamboo shoots, and after the spring bamboo shoots are harvested, the bamboo mother bamboo is induced to produce bamboo shoots in summer and autumn. The present invention selects the mother bamboo to be induced in a bamboo forest with 200 to 260 plants / mu, such as 200 plants / mu, 210 plants / mu, 220 plants / mu, 230 plants / mu, 240 plants / mu, 250 plants / mu and 260 plants / mu. Specifically in one embodiment, a bamboo forest open space next to a 2-5-year-old mother bamboo is selected in early May to set a groove. In the present invention, the 2-5-year-old mother bamboo has the strongest bamboo shoot force. The groove of the present invention is 40 to 50 cm away from the mother bamboo, 40 to 60 cm deep and 50 to 60 cm wide, and the direction of the groove is along the direction of the bamboo whip or the contour line. The length of the groove of the present invention can be determined according to actual conditions, the length of the short groove is determined according to the distance between the two mother bamboos, and the long groove is determined according to demand, but other mother bamboos are skipped in the middle of the groove.

[0021] After the trench is dug, the present invention uses mixed fertilizer and soil for backfilling. The backfilling can be done in a way of one layer of soil and one layer of fertilizer, or the mixed fertilizer and soil can be fully mixed before backfilling. The mixed fertilizer of the present invention includes the following components in the following amounts: 2000-3000kg / mu of organic fertilizer, 300-350kg / mu of 42% potassium sulfate compound fertilizer, 10-15kg / mu of urea and 5000-6000kg / mu of old rice husk, and can also include nano-selenium fertilizer, and the amount of the nano-selenium fertilizer is 1000-1500mL / mu.

[0022] The organic fertilizer of the present invention can increase fertilizer efficiency, increase soil organic matter content and soil permeability; old husk can increase soil organic matter content and soil permeability, and can store water to cool and dehumidify; nano-selenium fertilizer can increase nucleoside components in bamboo shoots and improve bamboo shoot quality. The present invention does not specifically limit the source of each fertilizer, such as the organic fertilizer used in the embodiment is purchased from Jiangsu Siweibo Biotechnology Co., Ltd., organic fermented compost (pure cow manure fermentation), organic matter: 50% ± 5%, NPK: 2.5% ± 0.3%; potassium sulfate compound fertilizer is purchased from Alwei International Trade (Hubei) Co., Ltd., high-concentration potassium sulfate compound fertilizer, NPK: 15-15-15, total nutrients ≥ 45%; urea is purchased from Hubei Yihua Group, agricultural urea, total nitrogen 46%; nano-selenium fertilizer is purchased from Selenium Huinong Biotechnology (Shenzhen) Co., Ltd., biological nano-selenium nutrients, selenium content 2g / L; old husk is collected from local farmers.

[0023] After the mixed fertilizer is backfilled, the present invention creates a temperature (18-30°C) and air humidity (75%-85%) suitable for the growth of bamboo. If the humidity is too low, water can be sprayed appropriately; if the temperature is too high, the temperature on the trough surface exceeds 32°C, a layer of straw can be laid on the trough surface, and the straw covering thickness can be 20-30cm; when the temperature on the trough surface exceeds 35°C, a small arch shed is built on the basis of a layer of straw on the trough surface, and the height of the arch shed can be about 100cm and the span is about 60cm; spraying a cooling agent on the shed surface can reduce the temperature by 8-12°C, and combining the humidity in the trough, spraying water appropriately to reduce the temperature. When the cooling agent is used, the cooling agent is mixed with water in a volume ratio of 1:6, and then evenly sprayed on the surface of the shed film after mixing. In one embodiment of the cooling agent of the present invention, it is purchased from Beijing Ruixue Global Technology Co., Ltd., product brand: Liliang.

[0024] By using the method of the present invention, bamboo shoots can be grown from late June to the end of August, and when the bamboo shoots grow to about 40 cm, the edible part of the front 20 cm of the bamboo shoots can be dug. By using this method, about 180 kg of fresh bamboo shoots can be produced per mu, the market price of fresh bamboo shoots is about 20 to 30 yuan / kg, and the income per mu is 3,000 to 5,000 yuan, which can meet the market demand and increase the income of the bamboo forest.

[0025] The present invention also provides application of the method in annual production of bamboo shoots of Phyllostachys pubescens.

[0026] By utilizing the method of the present invention, after conventional production of winter bamboo shoots and spring bamboo shoots, summer and autumn bamboo shoots can be produced in summer and autumn when production is not active. After the bamboo shoots are harvested in summer and autumn, the bamboo forest is tended in a conventional manner, which does not affect the normal growth of the bamboo forest and the normal production of bamboo shoots in the next year.

[0027] The present invention also provides a method for producing bamboo shoots of Phyllostachys pubescens all year round, comprising the steps of harvesting bamboo shoots of Phyllostachys pubescens in summer and autumn, and then carrying out conventional tending to harvest winter bamboo shoots and spring bamboo shoots of Phyllostachys pubescens.

[0028] The present invention does not specifically limit the production method of winter bamboo shoots and spring bamboo shoots, and the conventional methods in the field can be used for production, such as referring to the covering and forcing cultivation technology of bamboo shoot forests (technology development), the development and research of high-yield and high-efficiency cultivation technology for bamboo shoot dual-purpose forests (Jiangsu Forestry Science and Technology 2003.4), or the high-yield cultivation technology of bamboo shoots in the Yangtze River Basin (Yangtze River Vegetables 2016.1).

[0029] To further illustrate the present invention, a method for producing bamboo shoots in summer and autumn and all year round provided by the present invention is described in detail below in conjunction with embodiments, but they should not be construed as limiting the scope of protection of the present invention.

[0030] Example 1

[0031] Select a bamboo forest with natural bamboo shoots. After the spring bamboo shoots are harvested, and the mother bamboo is reasonably kept to 240 bamboos per mu, in early May, select a bamboo forest open space next to the 2-5-year-old mother bamboo. At about 50 cm away from the mother bamboo, along the direction of the bamboo whip or the contour line, dig a trench manually, 40-60 cm deep and 50-60 cm wide. The length of the trench is determined according to the actual situation. The length of the short trench is determined by the distance between the two mother bamboos, and the long trench is determined according to the needs, but other mother bamboos are skipped in the middle of the trench. After the trench is dug, start applying the pre-prepared mixed fertilizer and backfilling the loose soil, or backfill after a layer of soil and fertilizer or a layer of fertilizer and soil are fully mixed. The mixed fertilizer formula is 2000 kg / mu of organic fertilizer, 300 kg / mu of 42% potassium sulfate compound fertilizer, 10 kg / mu of urea, 1000 mL / mu of nano-selenium fertilizer and 5000-6000 kg / mu of old rice husks.

[0032] The temperature suitable for the growth of bamboo is 18℃~30℃, and the air humidity is above 75%. If the humidity is too low, spray water appropriately. If the temperature is too high, and the temperature on the trough surface exceeds 32℃, you can spread a layer of straw on the trough surface. If the temperature on the trough surface exceeds 35℃, build a small arch shed on the basis of a layer of straw on the trough surface, and spray cooling agent on the shed surface, which can reduce the temperature by 8~12℃. And according to the humidity in the trough, spray water appropriately to reduce the temperature. From late June to the end of August, whip shoots will grow one after another. When the whip shoots grow to about 40cm, dig out the edible part of the front 20cm of the whip shoots.

[0033] This method can produce about 180kg of fresh bamboo shoots per mu. After the bamboo shoots are harvested, the bamboo forest is tended according to the conventional method, which will not affect the normal growth of the bamboo forest and the normal production of bamboo shoots next year.

[0034] Example 2

[0035] Select a bamboo forest with natural bamboo shoots. After the spring bamboo shoots are harvested, and the mother bamboo is reasonably kept to 240 bamboos per mu, in early May, select a bamboo forest open space next to the 2-5-year-old mother bamboo. At about 50 cm away from the mother bamboo, along the direction of the bamboo whip or the contour line, dig a trench manually, 40-60 cm deep and 50-60 cm wide. The length of the trench is determined according to the actual situation. The length of the short trench is determined by the distance between the two mother bamboos, and the long trench is determined according to the needs, but other mother bamboos are skipped in the middle of the trench. After the trench is dug, start applying the pre-prepared mixed fertilizer and backfilling the loose soil, or backfill after a layer of soil and fertilizer or a layer of fertilizer and soil are fully mixed. The mixed fertilizer formula is 1000 kg / mu of organic fertilizer, 350 kg / mu of 42% potassium sulfate compound fertilizer, 10 kg / mu of urea, 1000 mL / mu of nano-selenium fertilizer and 5000-6000 kg / mu of old rice husks.

[0036] The temperature suitable for the growth of bamboo is 18℃~30℃, and the air humidity is above 75%. If the humidity is too low, spray water appropriately. If the temperature is too high, and the temperature on the trough surface exceeds 32℃, you can spread a layer of straw on the trough surface. If the temperature on the trough surface exceeds 35℃, build a small arch shed on the basis of a layer of straw on the trough surface, and spray cooling agent on the shed surface, which can reduce the temperature by 8~12℃. And according to the humidity in the trough, spray water appropriately to reduce the temperature. From late June to the end of August, whip shoots will grow one after another. When the whip shoots grow to about 40cm, dig out the edible part of the front 20cm of the whip shoots.

[0037] This method can produce about 150kg of fresh bamboo shoots per mu. After the bamboo shoots are harvested, the bamboo forest is tended according to the conventional method, which will not affect the normal growth of the bamboo forest and the normal production of bamboo shoots next year.

[0038] Example 3

[0039] Select a bamboo forest with natural bamboo shoots. After the spring bamboo shoots are harvested, and the mother bamboo is reasonably kept to 240 bamboos per mu, in early May, select a bamboo forest open space next to the 2-5 year old mother bamboo. At about 50 cm away from the mother bamboo, along the direction of the bamboo whip or the contour line, dig a trench manually, 10-15 cm deep and 50-60 cm wide. The length of the trench is determined according to the actual situation. The length of the short trench is determined by the distance between the two mother bamboos, and the long trench is determined according to the demand, but other mother bamboos are skipped in the middle of the trench. After the trench is dug, start to apply the pre-prepared mixed fertilizer and backfill the loose soil, or backfill after a layer of soil and fertilizer or a layer of fertilizer and soil are fully mixed. The mixed fertilizer formula is 2000 kg / mu of organic fertilizer, 300 kg / mu of 42% potassium sulfate compound fertilizer, 10 kg / mu of urea, 1000 mL / mu of nano selenium fertilizer and 5000-6000 kg / mu of old rice husks.

[0040] The temperature suitable for the growth of bamboo is 18℃~30℃, and the air humidity is above 75%. If the humidity is too low, spray water appropriately. If the temperature is too high, and the temperature on the trough surface exceeds 32℃, you can spread a layer of straw on the trough surface. If the temperature on the trough surface exceeds 35℃, build a small arch shed on the basis of a layer of straw on the trough surface, and spray cooling agent on the shed surface, which can reduce the temperature by 8-12℃. And according to the humidity in the trough, spray water appropriately to reduce the temperature. From late June to the end of August, whip shoots will grow one after another. When the whip shoots grow to about 40cm, dig out the edible part of the front 20cm of the whip shoots.

[0041] This method can produce about 50kg of fresh bamboo shoots per mu. After the bamboo shoots are harvested, the bamboo forest is tended in the conventional way, which will not affect the normal growth of the bamboo forest and the normal production of bamboo shoots next year.

[0042] Example 4

[0043] Select a bamboo forest with natural bamboo shoots. After the spring bamboo shoots are harvested, and the mother bamboo is reasonably kept to 240 bamboos per mu, in early May, select a bamboo forest open space next to the 6-year-old mother bamboo. At about 50 cm away from the mother bamboo, along the direction of the bamboo whip or the contour line, dig a trench manually, 40 to 60 cm deep and 50 to 60 cm wide. The length of the trench is determined according to the actual situation. The length of the short trench depends on the distance between the two mother bamboos, and the long trench depends on the demand, but other mother bamboos will be skipped in the middle of the trench. After the trench is dug, start applying the prepared mixed fertilizer and backfilling the loose soil, or backfill after a layer of soil and a layer of fertilizer or a layer of fertilizer and soil are fully mixed. The mixed fertilizer formula is 2000 kg / mu of organic fertilizer, 300 kg / mu of 42% potassium sulfate compound fertilizer, 10 kg / mu of urea, 1000 mL / mu of nano selenium fertilizer and 5000 to 6000 kg / mu of old rice husks.

[0044] The temperature suitable for the growth of bamboo is 18℃~30℃, and the air humidity is above 75%. If the humidity is too low, spray water appropriately. If the temperature is too high, and the temperature on the trough surface exceeds 32℃, you can spread a layer of straw on the trough surface. If the temperature on the trough surface exceeds 35℃, build a small arch shed on the basis of a layer of straw on the trough surface, and spray cooling agent on the shed surface, which can reduce the temperature by 8~12℃. And according to the humidity in the trough, spray water appropriately to reduce the temperature. From late June to the end of August, whip shoots will grow one after another. When the whip shoots grow to about 40cm, dig out the edible part of the front 20cm of the whip shoots.

[0045] This method can produce about 130kg of fresh bamboo shoots per mu. After the bamboo shoots are harvested, the bamboo forest is tended according to the conventional method, which will not affect the normal growth of the bamboo forest and the normal production of bamboo shoots next year.

[0046] Comparative Example 1 Experiment on the Effect of Different Fertilizer Formulas on Bamboo Shoot Yield

[0047] In early May, a bamboo forest vacant lot next to a 2-5 year old mother bamboo was selected, and a trench of 60 cm deep, 50 cm wide and 200 cm long was dug manually along the bamboo whip direction at a distance of about 50 cm from the mother bamboo, and different formula fertilizers were applied. Other production management measures were the same as in Examples 1 to 4.

[0048] Set up 9 treatments of formula fertilizer:

[0049] Treatment 1: 1000kg / mu of organic fertilizer, 250kg / mu of 42% potassium sulfate compound fertilizer, 10kg / mu of urea, 1000mL / mu of nano-selenium fertilizer and 5000-6000kg / mu of old rice husk were fully mixed;

[0050] Treatment 2: 1000kg / mu of organic fertilizer, 300kg / mu of 42% potassium sulfate compound fertilizer, 10kg / mu of urea, 1000mL / mu of nano-selenium fertilizer and 5000-6000kg / mu of old rice husk were fully mixed;

[0051] Treatment 3: 1000kg / mu of organic fertilizer, 350kg / mu of 42% potassium sulfate compound fertilizer, 10kg / mu of urea, 1000mL / mu of nano-selenium fertilizer and 5000-6000kg / mu of old rice husk were fully mixed;

[0052] Treatment 4: 2000kg / mu of organic fertilizer, 250kg / mu of 42% potassium sulfate compound fertilizer, 10kg / mu of urea, 1000mL / mu of nano-selenium fertilizer and 5000-6000kg / mu of old rice husk were fully mixed;

[0053] Treatment 5: 2000kg / mu of organic fertilizer, 300kg / mu of 42% potassium sulfate compound fertilizer, 10kg / mu of urea and 5000-6000kg / mu of old rice husk were fully mixed;

[0054] Treatment 6: 2000kg / mu of organic fertilizer, 350kg / mu of 42% potassium sulfate compound fertilizer, 10kg / mu of urea, 1000mL / mu of nano-selenium fertilizer and 5000-6000kg / mu of old rice husk were fully mixed;

[0055] Treatment 7: 3000kg / mu of organic fertilizer, 250kg / mu of 42% potassium sulfate compound fertilizer, 10kg / mu of urea, 1000mL / mu of nano-selenium fertilizer and 5000-6000kg / mu of old rice husk were fully mixed;

[0056] Treatment 8: 3000kg / mu of organic fertilizer, 300kg / mu of 42% potassium sulfate compound fertilizer, 10kg / mu of urea, 1000mL / mu of nano-selenium fertilizer and 5000-6000kg / mu of old rice husk were fully mixed;

[0057] Treatment 9: 3000kg / mu of organic fertilizer, 350kg / mu of 42% potassium sulfate compound fertilizer, 10kg / mu of urea, 1000mL / mu of nano-selenium fertilizer and 5000-6000kg / mu of old rice husk were fully mixed;

[0058] The results are shown in Table 1. The lowercase letters in Table 1 indicate significant differences at the 0.05 level. When the same amount of organic fertilizer is applied, the yield of bamboo shoots increases with the increase of compound fertilizer. However, the increase is larger under low-level organic fertilizer conditions (1000kg / mu), and smaller under high-level organic fertilizer conditions (2000-3000kg / mu). When the same amount of compound fertilizer is applied, the yield of bamboo shoots also increases with the increase of organic fertilizer. However, the increase is larger under low-level compound fertilizer conditions (250kg / mu), and smaller under high-level compound fertilizer conditions (300-350kg / mu). Under the conditions of 2000kg / mu and 3000kg / mu of organic fertilizer, the difference in bamboo shoot yield under the same compound fertilizer treatment is small, indicating that the effects of 2000kg / mu and 3000kg / mu of organic fertilizer are similar. Under the conditions of 300kg / mu and 350kg / mu of compound fertilizer, the bamboo shoot yield of the same organic fertilizer treatment (especially under the high level of organic fertilizer) is not much different, indicating that the effect of 300kg / mu and 350kg / mu of compound fertilizer is similar. In the case of taking into account both yield and cost, the 5-formula fertilizer is preferred in production.

[0059] Table 1 Yield of bamboo shoots under different fertilization formulas (kg / mu)

[0060] 1 2 3 4 5 6 7 8 9 Yield 99.8d 136.2c 154.1b 148.7b 175.3a 181.6a 158.8b 180.4a 185.9a

[0061] Comparative Example 2 Experiment on the influence of different trough depths on bamboo shoot yield

[0062] In early May, a bamboo forest clearing next to a 2-5 year old mother bamboo was selected. A 50 cm wide and 200 cm long trench was dug manually along the direction of the bamboo whip at a distance of about 50 cm from the mother bamboo. Three treatments were set with trench depths of 15 cm, 40 cm, and 60 cm. Formulated fertilizer was applied. The formula of the formula fertilizer was 2000 kg / mu of organic fertilizer, 300 kg / mu of 42% potassium sulfate compound fertilizer, 10 kg / mu of urea, 1000 mL / mu of nano-selenium fertilizer, and 5000-6000 kg / mu of old rice husks. Other production management measures were the same. The results are shown in Table 2. Lowercase letters indicate significant differences at the 0.05 level. When the trench depth is more than 40 cm, the bamboo shoot yield is significantly increased. This is highly consistent with the formation and growth characteristics of the bamboo whip.

[0063] Table 2 Yield of bamboo shoots at different trough depths (kg / mu)

[0064] Groove depth 15cm Groove depth 40cm Groove depth 60cm Yield 47.6c 152.9b 182.7a

[0065] Comparative Example 3 Experiment on the influence of different maximum temperatures on bamboo shoot yield

[0066] In early May, a bamboo forest clearing next to a 2-5-year-old mother bamboo was selected. A 60-cm deep, 50-cm wide, and 200-cm long trench was dug manually along the direction of the bamboo whip at a distance of about 50 cm from the mother bamboo. Formulated fertilizer was applied. The formula of the formula fertilizer was 2000 kg / mu of organic fertilizer, 300 kg / mu of 42% potassium sulfate compound fertilizer, 10 kg / mu of urea, 1000 mL / mu of nano-selenium fertilizer, and 5000-6000 kg / mu of old rice husks were fully mixed. The maximum temperature of the trough surface was set to no more than 28°C, 30°C, 32°C, and 35°C. Other production management measures were the same. The results are shown in Table 3. Lowercase letters indicate significant differences at the 0.05 level. When the temperature exceeds 32°C, the yield of bamboo shoots drops sharply. When the temperature exceeds 35°C, if the bamboo shoots are not dug quickly, they will basically rot.

[0067] Table 3 Bamboo shoot yields at different maximum temperatures on the trough surface (kg / mu)

[0068] 28℃ 30℃ 32℃ 35℃ Yield 190.6a 162.4b 96.3c 38.7d

[0069] Comparative Example 4 Experiment on the influence of mother bamboos of different years on bamboo shoot yield

[0070] In early May, we selected bamboo forest vacant lots next to 2-year-old, 5-year-old, and 6-year-old mother bamboos, dug a 60-cm deep, 50-cm wide, and 200-cm long trench about 50 cm away from the mother bamboos and along the bamboo whip direction, and applied formula fertilizers. The formula of formula fertilizers was 2000 kg / mu of organic fertilizer, 300 kg / mu of 42% potassium sulfate compound fertilizer, 10 kg / mu of urea, 1000 mL / mu of nano-selenium fertilizer, and a number of old rice husks were fully mixed. Other production management measures were the same. The results are shown in Table 4. Lowercase letters indicate significant differences at the 0.05 level. It can be seen that the bamboo shoots produced by 2-5-year-old mother bamboos are significantly higher than those of mother bamboos over 6 years old.

[0071] Table 4 Yield of bamboo shoots from mother bamboo in different years

[0072] 2 years 5 years 6 years Yield kg / mu 171.8a 165.3a 128.5b

[0073] Comparative Example 5 Comparison of the main components of nucleosides in bamboo shoots with and without selenium fertilizer

[0074] In early May, select a bamboo forest clearing next to a 2-5 year old mother bamboo, and dig a 50 cm wide, 200 cm long, and 60 cm deep trench along the bamboo whip direction at a distance of about 50 cm from the mother bamboo. Apply formula fertilizer, which is a mixture of 2000 kg / mu of organic fertilizer, 300 kg / mu of 42% potassium sulfate compound fertilizer, 10 kg / mu of urea, 1000 mL / mu of nano-selenium fertilizer, and 5000-6000 kg / mu of old rice husk. Except for the absence of nano-selenium fertilizer, all other ingredients in the group without selenium fertilizer are the same. Other production management measures are the same.

[0075] The results are shown in Table 5. Lowercase letters indicate significant differences at the 0.05 level. It can be seen that the contents of guanosine, uracil, and adenosine, the main components of nucleosides, in bamboo shoots treated with selenium fertilizer were higher than those in bamboo shoots not treated with selenium fertilizer.

[0076] Table 5 Contents of main components of nucleosides in bamboo shoots with and without selenium fertilizer

[0077]

[0078]

[0079] 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 producing bamboo shoots from Phyllostachys pubescens in summer and autumn, characterized in that: The following steps are involved: After the spring bamboo shoots are harvested, trenches are set in the bamboo forest next to the mother bamboos, mixed fertilizer and soil are filled into the trenches, and the temperature is adjusted to 18-30°C and the air humidity is above 75%; The components of the mixed fertilizer include organic fertilizer, nitrogen fertilizer, phosphorus fertilizer, potash fertilizer and agricultural waste.

2. The method according to claim 1, characterized in that: The amount of the mother bamboos is 200 to 260 per mu.

3. The method according to claim 1, characterized in that: The method comprises setting a groove on a bamboo forest open space beside a 2-5-year-old mother bamboo in early May, wherein the groove is set along the direction of the bamboo whip or the contour line, with a depth of 40-60cm and a depth of 50-60cm.

4. The method according to claim 3, characterized in that: The groove is 40 to 50 cm away from the mother bamboo.

5. The method according to claim 1, characterized in that: The mixed fertilizer comprises the following components in amounts: 2000-3000 kg / mu of organic fertilizer, 300-350 kg / mu of 42% potassium sulfate compound fertilizer, 10-15 kg / mu of urea and 5000-6000 kg / mu of old rice husk.

6. The method according to claim 5, characterized in that: The mixed fertilizer also includes nano-selenium fertilizer, and the dosage of the nano-selenium fertilizer is 1000-1500 mL / mu.

7. The method according to claim 5 or 6, characterized in that: The mixed fertilizer is filled into the trench in a method of a layer of mixed fertilizer and a layer of soil, or the mixed fertilizer and soil are mixed and then backfilled as a whole.

8. The method according to claim 1, characterized in that: When the temperature of the groove surface exceeds 32°C, a layer of straw is spread on the groove surface; when the temperature of the straw surface exceeds 35°C, an arch shed is built on the straw, and a cooling agent is sprayed on the shed surface of the arch shed.

9. Use of the method according to any one of claims 1 to 8 in the year-round production of bamboo shoots of Phyllostachys pubescens.

10. A method for producing bamboo shoots of Phyllostachys pubescens year-round, characterized in that: The method comprises harvesting bamboo shoots of Phyllostachys pubescens in summer and autumn by the method described in any one of claims 1 to 8, and then carrying out conventional tending to harvest winter bamboo shoots and spring bamboo shoots of Phyllostachys pubescens.

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