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How to prevent and control garlic leaf blight? These methods you need to master
Control measures for garlic leaf blight: 1) Promptly remove damaged leaves and flower stalks; 2) Strengthen field management, plant at a reasonable density, drain promptly after rain, and improve the host's disease resistance; 3) Starting at the early stage of the disease, spray 75% chlorothalonil wettable powder at 600 times dilution, or 50% iprodione wettable powder at 1500 times dilution, 64% oxadixyl-mancozeb wettable powder at 500 times dilution, 50% copper sulfate-ammonium salt wettable powder at 500 times dilution, 60% fosetyl-aluminum wettable powder at 500 times dilution, 14% copper ammonia complex aqueous solution at 300 times dilution, 1:1
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Pigs rooting at the pen and gnawing at soil are not just mischief; the reasons behind it need to be understood
Pigs rooting at the pen and gnawing at wood and soil are not just playing around; it is an abnormal phenomenon that affects the pigs' normal growth and development. The main causes are: first, growing-finishing piglets lack the mineral feed needed for growth; lactating sows and pregnant sows use their own mineral elements for the normal growth of suckling piglets and fetuses, and the minerals in the feed are hard to meet the demand. Second, the feeding is unreasonable: too little feed is given, the pigs do not eat their fill, and no water is provided with the feed. Third, sick pigs also show pen-rooting and gnawing at wood and soil. Prevention methods: first, pay attention to the feed mixing ratio and add mineral
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Wide choice of cotton varieties, cotton farmers can choose as needed
Recently, several readers have asked our newspaper for help, seeking to buy seeds of new insect-resistant cotton and hybrid cotton varieties. Due to limited seed sources and a tight market, most readers were unable to get what they wanted. Faced with this year's cotton seed supply situation, how can cotton farmers choose cotton varieties that suit them? After contacting the Crop Cultivation Station of the Jiangsu Provincial Department of Agriculture and Forestry and other relevant departments, this author believes that the choice of cotton varieties is still quite wide. For cotton farmers preparing to practice intercropping and relay intercropping in cotton fields, it is of course best to be able to choose cotton varieties with strong plant growth and good insect resistance, as this can both widen the cotton row spacing,
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What living conditions does the shiitake mushroom need to grow?
The living conditions required for the growth and development of the shiitake mushroom generally include water, nutrients, temperature, air, light, and pH level. 1. Nutrients. The shiitake mushroom is a wood-decaying fungus that lives by decomposing and absorbing the nutrients within wood. In sawdust cultivation, adding some nutrients to the substrate, such as rice bran, wheat bran, sugar, and trace elements, can promote good mycelial development and help achieve high quality and high yield of shiitake mushrooms. 2. Temperature. The shiitake mushroom is a low-temperature, temperature-variable fruiting fungus. The optimum temperature for its spore germination is 22-26°C; the mycelium
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Why do crystal shrimp die? You need to know these few reasons
The causes of death in crystal shrimp boil down to the following types: 1. Cannibalism - often occurs when stocking density is too high; the targets of attack are usually individuals that have just finished molting, because they carry a slight fishy smell that triggers attacks from their own kind. The prevention method is to plant dense aquatic plants so the shrimp have hiding places! 2. Death from cold - water temperature that is too low will affect the activity level of crystal shrimp; their limit is 10°C, and below 10°C it will cause death! 3. Attacks by planarians - planarians in the tank pose a threat to crystal shrimp, especially
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What conditions are needed for the growth and development of shiitake mushrooms?
1. Nutrition The shiitake mushroom is a higher wood-rotting fungus. The carbon source it needs for growth comes from lignin and cellulose, and its nitrogen source and inorganic salts come from the bark of bed logs or from wheat bran (rice bran) added to sawdust substrate. After shiitake spawn is inoculated into bed logs (substrate logs), the substrate is decomposed into small-molecule substances that can be absorbed and used by shiitake mycelium, and mycelial biomass increases with longer cultivation time. When the substrate has been fully degraded, the shiitake mycelium has accumulated a large amount of nutrients, laying the material foundation for fruiting body formation. Under suitable con
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How to prevent and treat root rot in rhododendrons? These methods you need to master
Root rot is a serious threat to rhododendrons. Although its incidence rate is not high, the mortality rate after infection is very high, so the prevention and treatment of root rot must be taken seriously in the cultivation and management of rhododendrons. Root rot is a soil-borne disease caused by Fusarium fungi, mostly occurring at the root and stem parts of rhododendrons, because these parts are often moist with insufficient sunlight, and the Deuteromycetes Fusarium fungi are highly active there. Once they invade the cortex, rot soon follows, with water-soaked brown spots and soft rot appearing on the roots, followed by decay and peeling of the bark, the xylem turning dark brown
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How is upland rice cultivated? These technical points need to be mastered
Upland rice cultivation should master the following points: (1) Select a suitable sowing period according to variety characteristics. Generally the same as the local early and middle rice. (2) Choose plots with deep soil plough layers and good water retention. Mountainous land with steep slopes, shallow plough layers and high coarse sand content is not suitable for planting upland rice. (3) Deep ploughing and fine preparation, with sufficient base fertilizer. Plough layer over 15cm, bed width about 1 m. Apply base fertilizer per mu by banding or hole application: phosphate fertilizer 50 kg, potassium fertilizer 10 kg, farmyard manure 500 kg. (4) Direct seeding or seedling raising and transplanting. Direct seeding can be drilled
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These respiratory diseases in chickens need to be carefully differentiated
No matter which respiratory disease occurs, it is difficult to determine from the clinical symptoms and the performance of the flock which respiratory disease is present, which brings certain difficulties to diagnosis. To help everyone make a preliminary diagnosis on site, various respiratory diseases and common frequently occurring diseases with respiratory disease symptoms are introduced as follows: Chicken chronic respiratory disease. This disease is a respiratory disease caused by Mycoplasma gallisepticum. Mycoplasma widely exists in the chicken body, and it can be said that in commercial laying hen flocks of various breeds
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How to care for a cow with a fever? These four measures you need to master
Drink more water After a sick cow develops a fever, its body consumes a lot of nutrients, its mouth is dry, and its appetite decreases, leading to anorexia. Therefore, the water supply should be met, otherwise the condition will worsen. It should drink more water to replenish body fluids and promote the excretion of intestinal toxins; adding an appropriate amount of sugar and salt to the drinking water is even better. Rest more The cowshed should be kept clean, hygienic and quiet, and the sick cow should be allowed to rest more to reduce the sick cow's muscle activity, thereby lowering physical consumption and heat production. Do not disturb the sick cow while it is sleeping; better deep sleep can significantly enhance the cow's immunity and improve resistance
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