Changning bitter bamboo shoots [Sichuan Changning specialty]

What is Changning bitter bamboo shoot? Authentic Sichuan Changning specialty: Changning bitter bamboo shoots

Content summary:Do you want to know what Changning bitter bamboo shoots are? This article is a detailed introduction to the Sichuan Changning specialty - Changning bitter bamboo shoots. It was compiled and edited by the editorial team of China Specialty Network after reviewing and collecting relevant information on Changning bitter bamboo shoots. The full text takes about 10 minutes to read, mainly including the basic introduction of Changning bitter bamboo shoots and how the history of Changning bitter bamboo shoots originated? Wait

Basic introduction of Changning bitter bamboo shoots

Changning bitter bamboo is indeed unique and is a unique bamboo species in southern China. Due to the unique geographical location, temperature, soil, water resources, and diverse bamboo ecosystems in Changning, the unique quality of Changning bitter bamboo shoots has been created. The aroma and taste are extremely unique, with a faint bitter aroma and a bitter taste when tasted. The aftertaste is sweet, hence it is commonly known as "sweet bitter bamboo shoots". At the same time, Changning bitter bamboo shoots are rich in trace element zinc and have high nutritional value. Whether stir fried, boiled in soup, or paired with meat, they are treasures in the cuisine. They also have the effects of clearing heat and detoxifying, promoting digestion and digestion. From early April to mid June, from hills at an altitude of over 200 meters to mountainous areas at an altitude of over 1400 meters, from the corners of fields in front of and behind houses to the narrow crevices of rocks, bitter bamboo shoots gradually emerge, showcasing the freedom of survival, promoting the joy of life, and providing a continuous supply of fresh ingredients for the people of Zhuxiang

Changning bitter bamboo shoots are fresh and tender bamboo shoots and their processed products produced by bitter bamboo on hilly and mountainous areas in the natural ecological zone of Changning County during spring and summer. Changning bitter bamboo is an important bamboo species in the bamboo forest used for bamboo shoots in Changning County, with a wide distribution and large quantity. The county has a bitter bamboo planting area of 78000 mu and a standardized bitter bamboo shoot forest base of more than 10000 mu. The annual production of fresh bitter bamboo shoots with shells is 38900 tons, and the products are sold well in more than 20 provinces, regions and cities across the country, with a direct output value of more than 200 million yuan

Quality and technical requirements

1. Variety

Spotted bitter bamboo (commonly known as "sweet bitter bamboo shoots")

2. Site conditions

Suitable for the climate and ecological environment of Changning, with an optimal altitude between 320m and 1200m, and soil environmental quality in accordance with relevant standards. Yellow soil, purple soil, etc. with a soil pH value of 5.0 to 8.0, and a soil layer thickness of over 400mm

III. Planting Techniques

1 Afforestation:

(1) Seedlings: It is advisable to dig the mother bamboo of the mature bitter bamboo forest, with a stem diameter of 2.0cm to 5.0cm, 3 to 4 branches, a whip length of 10cm to 15cm, a whip length of 15cm to 30cm, strong whip buds, no mechanical damage to the bamboo whip, normal bamboo nodes, and no pests or diseases

(2) Planting density: The planting slope should be less than 15 °, and the afforestation density should be 56 plants per 667 square meters (mu), with a row spacing of 3.0m × 4.0m; The recommended afforestation density for slopes ranging from 15 ° to 35 ° is 74 plants per 667 square meters (mu), with a row spacing of 3.0m × 3.0m

(3) Afforestation time: The best time is from the end of November to February of the following year

(4) Planting method: Manual land preparation is used along the horizontal step strip, and the planting hole size is 40cm × 40cm × 40cm. First, place the topsoil at the bottom of the hole, then put in the mother bamboo. Spread the roots of the bamboo whip, cover the soil layer by layer, and ensure that the top of the bamboo whip or root plate is level or slightly lower than the hole surface. In areas with dry weather or low soil moisture, it is necessary to first irrigate appropriately before covering with soil. The thickness of the covering soil should be 3cm to 5cm higher than the original depth, and the planting hole should be piled into a Mantou shape. Finally, the surface layer should be covered with a layer of loose soil, and the root setting water should be thoroughly poured

2. Forest management:

(1) Young forest nurturing: The irrigation water quality should meet the requirements of relevant national standards, and if there is water accumulation in the forest, timely trench excavation and drainage should be carried out; Before the closure of the canopy, weeding and soil loosening should be done twice a year from May to June and July to August, with a soil loosening depth of 5cm to 15cm; Newly emerged bamboo shoots should not be left behind or a small number of strong bamboo shoots should be kept. From the second year onwards, weak, small, fallen, and diseased bamboo shoots should be promptly removed

(2) Forest management: In spring, select bamboo shoots and store long bamboo shoots with a retention rate of 30%. At the end of winter, hoe once at a depth of 10cm to 20cm, and harvest old bamboo. Clean up diseased bamboo, wind fallen bamboo, and weak bamboo. The planting density is recommended to be 9000 to 12000 plants per hectare. Forest coverage, with a thickness of 15cm to 30cm, and the covering material maintains 60% moisture

3. Fertilization: Long shoot fertilizer is applied from February to March, long whip fertilizer is applied from May to June, and pregnant shoot fertilizer is applied from November to December. The fertilizer variety is mainly decomposed organic fertilizer, which is applied together with spraying, hole application, or a combination of covering measures. The application rate is 1000kg to 2000kg per 667 square meters (mu), and it meets the relevant national standards and regulations

4. Disease and pest control: Combining forest management techniques, physical and chemical control, and complying with relevant national standards and regulations

4. Processing

1 The main processing technology of Qingshui bitter bamboo shoots is as follows: raw material processing → shell removal → cleaning → cutting → canning → sterilization → cooling → storage

2. The main processing flow of dried bitter bamboo shoots is: raw material processing → shell removal → slicing → drying → bagging → storage

3. The processing environment and processing technology should comply with relevant national regulations and standards

Origin range

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