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Detailed Explanation of Notoginseng's Morphological Characteristics: A Comprehensive Understanding of the Plant's Features
Notoginseng is a perennial herbaceous plant, 30-60 cm tall. The main root is fleshy, mostly short conical in shape. The rhizome is short and thick, commonly known as "sheep intestine head." The above-ground stem is erect, smooth and hairless, solitary, unbranched, with longitudinal stripes. 3-6 palmate compound leaves are whorled at the top of the stem, with long petioles; the leaflets number 3-7, oblong-elliptic to obovate, 5-15 cm long, with finely serrate margins and bristles on the veins on both sides. The umbel is solitary at the top of the stem, with numerous flowers, bisexual, yellow-green when first opening, white when in full bloom; the calyx and corolla each have 5
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Understanding High-Fever Diseases in Pigs in Summer and Autumn in One Article
For the pig industry, summer and autumn can span from May to early November each year. Over this half-year period, pig diseases are commonly seen and frequently occur for many reasons. According to rough statistics, the incidence of pig diseases in summer and autumn accounts for about 70% of the whole year. The notable feature of pig diseases during this period is that clinically they are mainly characterized by high fever, with body temperature mostly rising above 41°C, presenting as continued fever or recurrent high fever. Among the commonly occurring high-fever diseases are: swine fever, swine erysipelas, swine pasteurellosis, piglet paratyphoid, swine septicemic streptococcosis
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Potato cultivation under small arch shelters can bring an earlier harvest to market
When potatoes are grown under small arch shelters, harvesting can generally begin around late March of the following year, about 20 days earlier for market than potatoes grown in open fields, with a net income of 800-1200 yuan per mu. Choose extra-early-maturing varieties such as Dongnong 303. From emergence to the point when they can be dug, Dongnong 303 generally needs only about 80 days. It has strong growth vigor, oblong tubers, yellow skin and yellow flesh, smooth skin, dense tissue, shallow eyes, medium-sized tubers that are fairly uniform, concentrated tuber set, and good quality.
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Key Points for Pest and Disease Control in Understory Cultivation of Asarum
1. Diseases. Asarum sclerotinia rot is a devastating disease of cultivated Asarum, affecting the roots, overwintering buds, stems, leaves, flowers, fruits and other parts of the plant. It occurs mostly in spring and autumn, and in severe cases can cause the complete death of Asarum. Control measures: follow the principle of "prevention is more important than cure" and make proper arrangements. (1) Block off affected areas. Prohibit the transport of diseased seeds and diseased seedlings to the outside to prevent human-mediated spread. Affected areas and seedbeds should be thoroughly treated in a timely manner. (2) Establish disease-free seedling bases. Select disease-free seedlings for transplanting, establish strict management systems, and prevent diseased soil,
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Detailed Explanation of Key Techniques for Understory Cultivation and Management of Asarum
Asarum is a perennial herbaceous medicinal plant of the genus Asarum in the family Aristolochiaceae, with antipyretic, wind-dispelling, diaphoretic, expectorant, and analgesic effects. Wild asarum is mainly distributed in the forest regions of Liaoning and Jilin. Asarum is a shade-loving plant, but if the understory temperature is too low and the light too weak in its wild state, it grows extremely slowly. Generally, understory cultivation takes more than 6 years from planting to harvest, and the plants are short, with only 2-3 leaves per plant, yielding very little. Farmers are accustomed to digging up wild asarum in May, when the seeds are not yet ripe, which seriously affects the natural
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Detailed Explanation of Key Techniques for Understory Cultivation of Asarum heterotropoides var. mandshuricum
Asarum heterotropoides var. mandshuricum (northern wild ginger, Liaoning wild ginger), a perennial herb of the genus Asarum in the Aristolochiaceae family, is used medicinally as a dried whole plant. It has the effects of dispelling wind and dispersing cold, opening the orifices and relieving pain, and warming the lungs and resolving phlegm. It is mostly distributed in the eastern mountainous areas of the three northeastern provinces. 1. Biological characteristics 1.1 Growth and development Asarum heterotropoides var. mandshuricum is a perennial herbaceous plant. It usually takes 5-7 years from sowing to the formation of new seeds, after which it flowers and sets seed every year. Within a year, the flowers and leaves of wild ginger open in early spring; by May the aboveground plants have basically finished growing, stop growing, and do not put out new leaves; in July the buds differentiate, and by autumn they form
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How to prevent and control cotton root rot in northern Xinjiang? Understanding the patterns of occurrence is key
In 2007, northern Xinjiang suffered varying degrees of cooling and rainfall in April, May and August respectively, and cotton root rot occurred rather severely, with the disease incidence in cotton fields reaching 20%-50%, causing a certain impact on cotton yield in northern Xinjiang. 1. Disease symptoms The pathogen overwinters as chlamydospores on plant residues in the soil and germinates to infect the following year. After cotton is infected, the leaves shrink or wilt, and soon afterward the plant lodges and dies. The stem base and roots of diseased seedlings are purplish brown and gradually rot, with the cortex drying and rotting; when pulled from the soil, the roots are decayed brown.
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What classifications do tulips have? Understanding tulip variety classification in one article
There are many varieties of tulips, about ten thousand or more. Two main classification methods are introduced here: 1. Classification by flower shape variation. They can be divided into cup type: the corolla is cup-shaped, with representative varieties including Cottage tulip, Darwin tulip, and Darwin hybrid tulip; bowl type: the corolla is shallow dish-shaped and bell-shaped, with many small flowers, and the representative variety is water lily tulip; lily type: the petal tips are gradually pointed, and the corolla resembles a lily flower, with the representative variety being lily tulip; ball type: the corolla is spherical, and these are the double-flowered types among Cottage tulips and Darwin hybrid tulips. 2. Classification by early or late flowering.
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Can squid be artificially farmed? You'll understand after reading this
Can squid be artificially farmed
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What are the precautions for winter irrigation of wheat? Read this article to understand
Precautions for winter irrigation of wheat
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