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How should fishery drugs be used in a standardized way? Master these key points for medication
Fishery drug residues are currently the most common source of contamination in aquatic products. There are many reasons for excessive drug levels in aquatic products, among which the abuse of drugs and feed additives is the main culprit. Standardized medication is a fundamental measure for preventing excessive drug residues in aquatic products, improving the quality of aquatic products and crossing the "green barrier". For this reason, the author discusses how to use fishery drugs in a standardized way from the following aspects, for the reference of the vast number of farmers. 1. Strictly implement national laws and regulations In recent years, relevant departments have successively issued
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What to Do When Rice Seedlings Suffer Fertilizer Burn? Master the Correct Remedial Methods
Blindly increasing the amount of chemical fertilizer applied will cause various physiological disorders in rice seedlings, making growth and development abnormal after transplanting. Applying excessive amounts of undecomposed organic fertilizer will also cause poor growth of rice. This kind of physiological disorder caused by excessive fertilizer application is "fertilizer burn." 1. Causes of fertilizer burn There are many causes of fertilizer burn in rice seedlings, which can be summarized into three: First, improper fertilization methods. For example, applying ammonia water or ammonium bicarbonate under high temperature at noon, the volatilized ammonia gas causes fumigation damage to rice plants.
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How is Lycoris radiata processed? These processing methods must be mastered
Lycoris radiata mostly grows in shady, damp forest edges, on embankments, in cemeteries, or beside roads. The underground bulb is broadly elliptical or nearly spherical, with a grayish-black outer skin; the linear leaves grow in clusters, dark green on the surface and glaucous green on the underside. The margins are entire; the flowers appear before the leaves, and in autumn a flower stalk emerges from the bulb, bearing several stalked flowers at the top arranged in an umbel. The flowers are bisexual, with large petals that curl backward, usually bright red or with white edges, and no fragrance; the stamens and pistils are very long and protrude beyond the flower. Lycoris radiata can be dug up year-round; when digging, be careful not to bruise the bulb, or it will easily rot. After digging, it is best to process it immediately.
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How to manage greenhouse apricots? Master these four technical points
1. Fertilizer and water management. Apply base fertilizer every autumn. The base fertilizer is mainly organic fertilizer such as livestock manure, compost, and cake fertilizer, appropriately mixed with some nitrogen, phosphorus, and potassium fertilizers. After covering with plastic film, no more topdressing is applied; after fruit set and during the hard-core stage, spray once with 0.3% urea plus 0.2% compound micronutrient fertilizer and 0.3% monopotassium phosphate. Install drip irrigation pipes in the greenhouse and water reasonably according to soil moisture. Do not water too much, so as to avoid excessive growth of new shoots and cause physiological fruit drop. 2. Training and pruning. For "Y"-shaped training, mainly retain lateral branches (main branch branching angle about 70 degrees
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How to prevent and treat swine enzootic pneumonia? Pig farmers need to master these methods
The pathogen is Mycoplasma hyopneumoniae. Piglets and suckling pigs are most susceptible, while adult pigs show latent infection without symptoms, mainly reducing productivity. It occurs when stimulated by adverse stress factors, characterized by coughing and panting (abdominal breathing), often secondary to pleuropneumonia, Streptococcus, swine pneumonia, cold, etc. At this point, body temperature rises and symptoms worsen, requiring comprehensive treatment. Prevention and control: 1. Strengthen disinfection. "Minxing Disinfection Star" or "Minxing No. 5 Disinfectant" can be used. Try to achieve self-breeding and self-raising in epidemic prevention work.
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How to raise first-time mother pigs? Master these breeding secrets
1. Nutritional regulation during the growing period. For young sows (two-way crossbreeds), starting from 30 kg body weight, each kg of compound feed in the diet should contain 13 megajoules, 16% crude protein, 0.8% lysine, 0.75% calcium, and 0.65% phosphorus; do not restrict feed intake, and let them eat as much as possible. Starting from 45 kg body weight, increase the calcium and phosphorus content by 0.1% each. At 150 days of age, when the young sow weighs about 80 kg, control feed intake to 2.3 kg to 2.5 kg per day. For native-breed young sows, the calculated body weight should be 2 kg to 3 kg less.
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How to cultivate a tower chrysanthemum? These technical points must be mastered
I. Selection and cultivation of the rootstock For grafting tower chrysanthemums, Artemisia (mugwort) of the Asteraceae family, genus Artemisia, is generally used as the rootstock. Sow seeds for seedlings at the end of September; in early November, select mugwort seedlings whose stems have just begun to elongate and which are growing vigorously, plant them first in small pots, and place them in a greenhouse to overwinter, with the temperature generally kept at 10-15°C. After transplanting and establishment, apply a light fertilizer to promote growth. Water once a week, maintaining humidity at 50-60%. In early to mid-February of the following year, lateral branches can sprout from every node starting at its base. After the frost has passed, once the plant height is about 40-60 cm, it can be moved outdoors. Before moving outdoors
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Detailed Explanation of Tower Chrysanthemum Cultivation Techniques, Easily Master the Planting Method
I. Selection and Cultivation of Rootstock. For grafting tower chrysanthemums, Artemisia annua of the genus Artemisia in the Asteraceae family is generally used as the rootstock. Sow seeds and raise seedlings at the end of September. In early November, select healthy Artemisia seedlings whose stems have just begun to elongate, plant them first in small pots, and place them in a greenhouse to overwinter, with the temperature generally kept at 10-15°C. After transplanting and surviving, apply a light fertilizer to promote growth. Water once a week, maintaining humidity at 50-60%. In early to mid-February of the following year, lateral branches can sprout from every node starting from the base. After the frost period ends, once the plant height reaches about 40-60 cm, it can be moved out of the greenhouse. Before moving out, choose a high
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How to care for orchids in hot weather? Master these care techniques
1. Protection from strong light. In China, summer starts in late May and ends in late September, lasting as long as 4 months. Before the summer solstice, sunlight is abundant, which helps to some extent in increasing the rate of new shoot production. After the summer solstice, sunlight becomes very intense, and shading is essential; otherwise, it will cause necrosis of orchid leaf cells and result in sunburn. Shade netting can be used for shading. In May to June, use a single layer of netting with about 60% shading. In July to August, double-layer shade netting must be used; the upper layer is best if it is movable, so it can be adjusted accordingly based on cloudy or clear weather and light intensity. Outdoor orchid plants can also be moved
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Detailed explanation of pot chrysanthemum cultivation techniques, easily master the care methods
Single-head pot chrysanthemum 1. Variety selection For pot chrysanthemums, choose large-flowered excellent varieties from single-stem chrysanthemums that have an early flowering period, thick and sturdy stems, dense stem nodes, thick and plump leaves, a large root system, and sensitivity to dwarfing agents such as B. Varieties suitable for pot chrysanthemums include: "White Hydrangea", "Golden Lion Head", "Grass Frost", "West Chamber Waiting for the Moon", "Pink Lion Head", "Sunrise Peach", "Huang Shigong", "Tiger Roar", "Huaguang Cloud", "Queen", "Cloud of the Plateau", etc. 2. Cutting propagation Generally suitable for cutting from late July to early August.
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