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Early prevention and control of soybean diseases: seize the opportunity to reduce yield losses
To achieve high yields in soybean, the main challenge is to properly manage the four aspects of "seed, water, fertilizer, and light." The "deep-narrow-dense" cultivation technique is a comprehensive high-yield supporting cultivation model formed on the basis of this principle. It takes the selection of dwarf varieties as the breakthrough point, uses air-suction seeders and general-purpose machines as the carrier, and combines "deep" (i.e., deep loosening, deep fertilization, and layered fertilization), "narrow" (i.e., narrow rows), and "dense" (i.e., increased planting density) into a comprehensive high-yield supporting technique. It is a cultivation technique that uses large seeders as the carrier. "Seed" means variety,
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How to preserve soybean flowers and increase pod set? A detailed explanation of chemical regulation management techniques
1. Applying rare earth. Rare earth is also called rare earth micro-fertilizer or rare earth nitrate, with the trade name Changle Yizhisu. It is a new type of rare earth element fertilizer first developed and promoted as a key project in China; at the soybean seedling stage and early flowering stage, spraying once each with rare earth solutions at concentrations of 0.03-0.04% and 0.08% respectively can increase grain protein content by 5.9%, fat content by 8.5%, and yield by 15%-20%. 2. Applying paclobutrazol. Paclobutrazol is also called chlorobutrazol, code PP333, and is a new type of plant growth
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Detailed Explanation of Control Measures for 3 Soybean Diseases
Soybean root rot: This disease can occur and cause damage throughout the entire growth period of soybean, with yield reductions of 25%-75% or more. The protein content of affected seeds is significantly reduced. The main symptoms are dark brown lesions appearing at the base of the stem, spreading upward to varying degrees to the lower lateral branches, causing the pith of the diseased stem to turn brown, the base of the petiole to constrict, and the leaves to droop but not fall off. Chemical control mainly uses 58% ridomil manganese zinc or 72% curzate wettable powder, both applied as seed treatment at 0.3%-0.4% of seed weight. Soybean sclerotinia: Soybean sclerotinia
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Comprehensive control methods for soybean root-knot nematode disease
Soybean root-knot nematode disease, also known as "Fire Dragon Seedling," is a whole-plant disease caused by nematodes attacking soybean roots, leading to bacterial infection and disease. Affected plants grow slowly, with short, small, and yellowing stems and leaves, delayed flowering, few and small pods, and shriveled seeds; in severe cases, no pods form, or even the entire plant dies. Soybean root-knot nematode disease spreads rapidly, and the pathogenic nematodes can survive in the soil for a long time. Once the disease occurs, it is very difficult to eradicate completely, so comprehensive control measures must be adopted: 1. Select and sow disease-resistant varieties; 2. Control the source of infection
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Prevention and Treatment Methods for Non-Infectious Febrile Diseases in Pigs
I. Unexplained High Fever in Pigs Unexplained high fever in pigs refers to a fever syndrome of unknown cause with sudden onset, characterized by high fever (body temperature reaching as high as 40°C-42°C), reddened skin or red patches, dry hard black feces, and scant yellow urine, commonly known as "carrot disease" or "red patch disease." The disease can occur in all four seasons, and treatment with antibiotics and sulfonamides to reduce fever is very ineffective or even useless. 1. Causes A variety of causes can trigger fever, which can be clinically divided into pyrogenic fever and non-pyrogenic fever. Pyrogenic fever is caused by pyrogens such as bacteria, viruses,
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How can sheep farmers prevent sheep diseases? Six major measures to master
1. Doing a good job of scientific feeding and management is an important foundation for preventing sheep diseases. Practice has proven that most sheep diseases are caused by improper feeding and management. Based on the living habits of sheep, do a good job with the three words "eat, housing, movement": Eat - feed enough grass, supplement concentrate, and standardize the formulation of the daily ration. Housing - ventilation in summer, warmth in winter, clean and hygienic pens that are dry. Movement - housed sheep flocks need exercise, and sheep in late pregnancy should be prevented from falling. 2. It is forbidden to buy sheep from epidemic areas. Sheep purchased from non-epidemic areas should also first be isolated and raised for 1 month, and only after it is truly confirmed that they are disease-free
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Prevention and Treatment of Common Pig Diseases in Autumn and Winter
With the arrival of autumn and winter, the occurrence and spread of pig diseases differ markedly from summer. First, as temperatures drop, the probability of viral diseases increases greatly (such as swine influenza, transmissible gastroenteritis, classical swine fever, and foot-and-mouth disease in pigs). At the same time, because of the need to keep warm, increased stocking density and poor ventilation lead to frequent outbreaks of respiratory diseases (such as porcine respiratory disease complex, enzootic pneumonia, and porcine reproductive and respiratory syndrome). The occurrence of the above diseases has given rise to many new features in the epidemiology of pig diseases in recent years. This article discusses the autumn and
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What is pig paralysis? An analysis of puzzling pig diseases
[Cause] Due to dampness in the pigsty, combined with external contraction of wind-cold-damp pathogenic factors, the meridians and collaterals of the affected pig become stagnant, and the flow of qi and blood becomes sluggish and unsmooth. When blood stasis is not free, there is pain, leading to pain and numbness in the hindquarters. This disease mostly occurs in winter and spring. [Symptoms] It mostly comes on suddenly, starting first from the hind limbs and gradually spreading to the abdomen and even the whole body. The affected pig is lame, with local muscle pain, an arched back and restricted gait; some like to lie down and move reluctantly when driven, but as exercise time increases, the pain gradually eases. Generally, the affected area is tender to pressure, and body temperature is mostly around 38-39°C,
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A Detailed Guide to the Diagnosis and Treatment of Complex and Intractable Swine Diseases
At present, individual pigs on some pig farms are infected by a mixed infection of two or more pathogens, including bacteria, viruses, toxoplasmosis, and Eperythrozoon. After the affected pigs fall ill, treatment with antibiotics alone often gives poor results. Farmers report that penicillin fails to bring the fever down. In this situation, we should consider that the pig may be infected by more than two pathogens, which belongs to the category of complex and intractable swine diseases. The main signs of sick pigs are: (1) persistent high fever, reduced appetite, listlessness, constipation or diarrhea; (2) clear nasal discharge or mucus, with difficulty breathing
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Key Points of Special Management Measures During Chicken Disease Outbreaks
Since disease in chickens causes physiological dysfunction, which affects their ability to adapt to the environment, their demand for nutrients, and endocrine regulation to a certain extent, if special management measures are taken at this time to provide auxiliary treatment, the results will be twice as effective with half the effort. Disease in feed chickens often leads to elevated body temperature and metabolic disorders; therefore, it is necessary to change the nutrients in the feed, their content, and the feeding method. First, increase the energy level; according to the degree of reduction in feed intake of sick chickens, the energy level should be raised to 1.2 times the normal level. Second, increase vitam
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