-
Detailed Explanation of the Key Scientific Cultivation Techniques for Purple Salvia
1. Overview Alias: Salvia miltiorrhiza, blood ginseng root. The root is used as medicine, to invigorate blood and regulate menstruation, for insomnia and palpitations. In modern medical clinical practice it is used to treat coronary heart disease, angina pectoris and other conditions with remarkable efficacy. 2. Biological Characteristics It prefers a warm, humid environment with abundant sunlight. At minus five degrees Celsius the stems and leaves suffer frost damage, while the underground roots are cold-resistant and can overwinter. High temperatures and drought during the seedling stage cause the seedlings to stagnate or even die. It is intolerant of waterlogging, and overly sandy, overly clayey or low-lying soils are unsuitable for planting. ⟦4 <p>1. Overview </p><p>Alias: Salvia miltiorrhiza, blood ginseng root. The root is used as medicine, to invigorate blood and regulate menstruation, for insomnia and palpitations. In modern medical clinical practice it is used to treat coronary heart disease, angina pectoris and other conditions with remarkable efficacy. </p><p> </p><p>2. Biological Characteristics </p><p>It prefers a warm, humid environment with abundant sunlight. At minus five degrees Celsius the stems and leaves suffer frost damage, while the underground roots are cold-resistant and can overwinter. High temperatures and drought during the seedling stage cause the seedlings to stagnate or even die. It is intolerant of waterlogging, and overly sandy, overly clayey or low-lying soils are unsuitable for planting. </p><p>3. Cultivation Techniques </p><p>1. Land selection and preparation. (1) Seedling plot: a plot with high terrain and loose soil. Make high beds and apply rotted barnyard manure or compost as base fertilizer. (2) Planting plot: choose a plot with deep soil, loose and fertile, relatively high terrain and good drainage for planting. (3) Mountain land: choose a sunny, low-slope plot. </p><p>2. Seedling raising. In late March, make beds 1.3 m wide, open furrows horizontally at a row spacing of 33 cm, with a furrow depth of 1 cm, mix the seeds with fine sand and scatter them into the furrows, cover with soil only to the extent that the seeds are no longer visible, cover with plastic film after sowing, punch holes in the film to release the seedlings after emergence, thin the seedlings when they are six cm tall, and transplant in late May. </p><p>3. Transplanting. Spring planting is done in mid-May, and autumn planting in late October. Earlier transplanting leads to earlier rooting and earlier greening in the following year. On the bed surface, dig holes at a row and plant spacing of 33× 23 cm, with the hole depth depending on the root length; apply base fertilizer at the bottom of the hole and plant 1~2 seedlings grown from seed (that is, seedling plants) per hole. </p><p>4. Seed propagation Same as seedling raising. </p><p>4. Field Management </p><p>1. Cultivation, weeding and topdressing Cultivate, weed, earth up and apply manure fertilizer three times a year. </p><p>2. Removal of flower buds To concentrate nutrients in the roots, all flower buds are cut off except in seed-production plots. </p><p>3. Drainage and irrigation Drain promptly during the rainy season and carry out furrow irrigation or watering promptly in dry weather. </p><p>5. Pest and Disease Control </p><p>1. Leaf spot disease Dark brown spots appear on the diseased parts, and in severe cases the leaves wither and die. For control, practice crop rotation; spray 0.3% potassium dihydrogen phosphate or carbendazim, thiophanate-methyl or zineb. </p><p>2. Root rot disease The lateral roots or fibrous roots turn brown and rot, causing the death of the whole plant. Irrigate with a 800~1000-fold solution of 50% carbendazim or a 1000-fold solution of 50% thiophanate-methyl. </p><p>3. Root-knot nematode disease Due to parasitism by root-knot nematodes, many tumor-like growths form on the roots, causing the plant to develop slowly and eventually the whole plant to wither and die. For control, rotate with cereal crops; apply 3% methyl isothiophos. </p><p>4. Silver-marked noctuid The larvae feed on Salvia miltiorrhiza leaves, and in severe cases the leaves are eaten bare. For control, burn the residual branches and diseased leaves after harvest; spray a 2000~3000-fold solution of 10% fenvalerate; a 1000-fold solution of 40% omethoate; or a 1000-fold solution of 90% trichlorfon to kill them. </p><p>6. Harvesting and Processing </p><p>For vegetatively propagated plants, dig them up in November of the same year or before sprouting in the following spring; for seed-propagated plants, they can be dug up from October to November of the second year to before sprouting in early spring of the third year. After digging them out, sun-dry them in the field, remove the soil and transport them back; do not wash with water. Dry them in the sun until they are fifty percent dry, tie them into small bundles, pile them for 2-3 days to let them sweat, then spread them out again and sun-dry until completely dry, remove the fibrous roots and trim the rhizome, and cut off the fine tail ends to obtain the commercial product.</p>
-
Detailed Explanation of the Key Technical Points for Scientific Cultivation of Scutellaria baicalensis
1. Overview. Scutellaria baicalensis, also known as golden-strip root, mountain tea root, and skullcap tea, is a plant of the Lamiaceae family. Its root is used medicinally. Its main components include baicalin, baicalein, wogonin, and neobaicalein, among others. It has effects such as clearing heat, purging fire, detoxifying, and preventing miscarriage. It is mainly used to treat warm-disease
-
How to Overcome Alternate Bearing in Mango? Detailed Explanation of Cultivation Measures
To overcome alternate bearing in mango, the first requirement is to have an appropriate amount of flowers; the second is to have the flowering period avoid low-temperature rainy weather; the third is to find ways to increase the fruit-setting rate. The measures are: 1. Selection of varieties According to the characteristics of Guangxi's early spring, which is mostly low-temperature rainy weather, it is ideal for mango to bloom after early April.
-
Experience in achieving high yield and high quality by covering greenhouse peaches with old film
Peach trees are light-loving fruit trees and are sensitive to light; when light is insufficient, the photosynthesis of the leaves cannot proceed normally. In places with sufficient light, flower buds are numerous and plump, and fruit quality is good; in shaded places, flower buds are shriveled and fruit quality is poor. Covering greenhouse peach trees with old film will cause
-
How to do a good job of overwintering management for prickly ash trees? These technical points must be mastered
Prickly ash, aliases: hui, dajiao, Qinjiao, Shujiao, Chuanjiao or Shanjiao. It is a deciduous shrub or small tree of the Rutaceae family, Zanthoxylum genus, and can be planted alone or used as a protective thorn hedge. Its fruit peel can be used as a seasoning, and aromatic oil can be extracted from it; it can also be used as medicine, the seeds can be eaten, and
-
Detailed Explanation of the Mulch-Cover Cultivation Technique for Chinese Caterpillar Fungus
Chinese caterpillar fungus, also known as cordyceps, is a valuable tonic medicinal material commonly used among the people of our country. Its nutritional content is higher than that of ginseng. It can be used as medicine and also eaten, and is a superior delicacy with very high nutritional value. Chinese caterpillar fungus can enhance the body's immunity and nourish the lungs and kidneys.
-
Key Techniques for Overwintering Spinach Seedling Protection and Field Management
Spinach (Spinacia oleracea L.), also known as Persian spinach, red-root spinach, parrot spinach, etc., belongs to the genus Spinacia in the subfamily Chenopodioideae of the family Amaranthaceae, and is an annual herbaceous plant. The plant can reach 1 m in height, with a conical root that is reddish, less often white, and leaves that are hastate to ovate, bright green, with entire or
-
Detailed Explanation of Potato Plastic Mulch Cultivation Techniques
The potato is a perennial herbaceous plant of the Solanaceae family, whose tubers are edible, and it is the third most important food crop in the world, after wheat and corn. The potato is also known as earth egg, malingshu, foreign taro, etc., and is the tuber of a Solanaceae plant. Together with wheat, corn, rice, and sorghum, it forms
-
Identification of Clover Powdery Mildew Symptoms and Introduction to Control Methods
Clover is actually quite common in our daily lives, and it has high ornamental value. In China it is generally used for lawn construction in landscaping. Clover has strong vitality and very low soil requirements, so it is one of the more easily surviving plants.
-
Detailed Explanation of the Key Cultivation and Management Techniques for White Clover
Just hearing the name clover, we should know that it is a grass that grows three leaves. Clover is fairly common in our country, and it is generally used to decorate lawns, embankments and so on, so its greening role is very great. Secondly, it also has certain medicinal value,
条件筛选