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  • Characteristics of the Fuding Damao Tea Cultivar and an Introduction to the Tea Types It Is Suitable For Processing

    It belongs to the clonal propagation line. It is a national-level improved cultivar. It originates from Fuding County, Fujian Province. It has a cultivation history of one hundred years to date. It has been introduced and cultivated in Zhejiang, Jiangsu, Jiangxi, Hubei, Anhui and other provinces. It is one of the high-yield, high-quality cultivars suitable for growing in low-hill red soil. Morphological characteristics: small tree type, large-leaf, early-budding cultivar. The plant is relatively tall and upright, with plump buds and leaves covered in abundant silvery-white downy hairs, and strong tenderness retention. Spring buds sprout in mid-March, and the peak period of one bud and three leaves is in early April, with a hundred-bud weight of 104 grams. It can be processed into famous teas of different appearances. It is not only a premium raw material for processing "

  • Introduction to the Chu Ye Qi No. 12 tea tree variety

    It belongs to the clonal propagation line. It is a national-level improved variety. It was bred by the Hunan Tea Research Institute. It has now been promoted to provinces including Hubei and Anhui. Morphological characteristics: shrub type, medium-leaf, medium-bud variety. The tree posture is semi-open; spring buds germinate in mid-to-late March; the peak period of one bud and three leaves is in early-to-mid April; the weight of 100 buds is 70 grams. The young shoots are green-yellow with abundant fine hairs. It has strong tenderness retention and is suitable for making famous green tea; the appearance is tight and compact, with silvery tips visible, a jade-like moist color, rich aroma and mellow taste. Quality characteristics of fresh leaves of one bud and two leaves: tea polyphenols 36.1%, amino acids 3.

  • Introduction to the Content Determination Method for Aminophylline Tablets

    Anhydrous theophylline - Take 20 tablets of this product, weigh accurately, grind finely, weigh accurately an appropriate amount (approximately equivalent to 100 mg of aminophylline), place in a 200 ml volumetric flask, add 20 ml of 0.1 mol/L sodium hydroxide solution and 60 ml of water, shake for 10 minutes to dissolve the aminophylline, dilute to volume with water, mix well; filter, accurately measure 5 ml of the subsequent filtrate, place in a 250 ml volumetric flask, dilute to volume with 0.01 mol/L sodium hydroxide solution, mix well, and follow the spectrophotometric method (Appendix page 17)

  • Introduction to the Gansu Codonopsis variety 92-02

    Gansu Codonopsis 92-02 is a new Codonopsis variety jointly bred by the Dingxi Dryland Agriculture Research and Extension Center of Gansu Province, the Weiyuan County Science and Technology Bureau, and the Agricultural Extension Center and other units, using the mass selection method over many years according to breeding procedures. The variety passed provincial appraisal and acceptance in 2004, with the achievement level reaching domestic advanced standards, and won the second prize of the Dingxi Municipal Science and Technology Progress Award in 2006. Its variety characteristics are as follows: 1. Characteristics and traits. The variety has a full growth period of 540 d, a plant height of about 150 cm, a green main stem, pale yellow

  • Codonopsis pilosula 8917-2 Variety Introduction

    8917-2 is a new Codonopsis pilosula line in China developed through crossbreeding by the Dryland Agriculture Research Institute of Dingxi Prefecture, Gansu Province. It shows strong advantages such as high and stable yield, drought and cold resistance, and wide adaptability. It increases yield by 20%-30% compared with Shanxi Ludang Codonopsis and Gansu Baitiao Codonopsis, producing 150-200 kg of dried product per 667 sq m, with the highest reaching 250 kg. The key points of its seedling raising and cultivation techniques are briefly introduced as follows. 1. Seedling raising The seedling field should be finely cultivated and fully applied with base fertilizer. Apply 2,500 kg of decomposed farmyard manure per 667 sq m, additionally apply 100 kg of cake fertilizer

  • A Brief Introduction to the Key Points of Fertilization Techniques for Pinellia ternata

    A perennial herb of the Araceae family. Mainly produced in Henan, Sichuan, Guizhou, Jiangsu, Hubei, Anhui, Zhejiang and other provinces. The medicinal part is the rhizome. Pinellia ternata has a shallow root system. It prefers a mild, humid climate and a shaded environment, and is afraid of high temperatures, drought and strong light. It is suitable for loose-textured, well-drained sandy loam soil. Key points of fertilization techniques: Base fertilizer, apply 3000-4000 kg of barnyard manure per 667 sq m. Topdressing, from late May to early June, when bulbils grow out from the lower part of the petiole, apply a mixed fertilizer of 500-1000 kg of barnyard manure and

  • What are the main varieties of arrowhead? Introduction to common varieties

    (1) Shagu is a local variety of Guangdong. The plant height is 70-80 cm, and the spread is 60-70 cm. The corm is oval, 5 cm high, and 4 cm in transverse diameter; both skin and flesh are yellowish white. Each one weighs 40-60 g. It contains a lot of starch, has only slight bitterness, and tastes good. It does not store or transport well. From planting to first harvest is 110-120 days. In February, corms are used for raising seedlings; in July-August they are planted; from December to February of the following year they are harvested. The yield per mu is 1000 kg. (2) Bairou Cigu has a plant height of 70-75 cm and a spread of 80 cm.

  • What to Do If Blue Mushrooms Appear? Introduction to the Correct Handling Method

    The symptom of blue mushrooms is that when the mushroom body grows, a blue halo forms at the edge of the cap. In severe cases, the entire mushroom body looks as if blue ink has been splashed on it, and it does not disappear even after the mushroom body is harvested. The main causes of blue mushrooms are: (1) Heating the mushroom shed with coal, firewood and other fuels causes carbon monoxide and carbon dioxide poisoning in the mushroom body, stimulating changes in the components within the mushroom body and producing a discoloration reaction. (2) Using poor-quality new plastic film as covering material: due to the temperature difference between the inside and outside of the film and the relatively high humidity inside the film, it is very easy for the film to