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Control Methods and Technical Key Points for Mango Powdery Mildew
Mango is prone to powdery mildew during the flowering stage, young fruit stage and tender leaf stage. If not controlled in time, it will cause massive fruit drop and reduce yield. Mango powdery mildew is a fungal disease that mainly affects inflorescences, young fruits and tender leaves. On affected organs, scattered small white moldy patches first appear,
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What are the key technical points for spring management of apple orchards?
I. Orchard sanitation: In combination with winter pruning, saw off rotten and diseased dead branches, cut off branches with woolly apple aphid galls, and thoroughly clean the orchard. Clear away fallen leaves, dropped fruit, residual branches and rotting bark, then bury them in pits or burn them to reduce the source of pests and diseases. In late March, when the buds show green, spray to sanitize the orchard.
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How to prevent and control apple fruit cracking? Growers, master these key points
In recent years, apple fruit cracking is a common disease in production, seriously affecting fruit quality. The causes and prevention methods of apple fruit cracking are introduced below. Apple fruit cracking manifests as cracks or fissures on the fruit. There are various forms of fruit cracking: some split longitudinally from the side of the fruit,
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Key Technical Points for Autumn Management of Young Apple Trees
Young apple trees have relatively strong growth vigor but poor cold resistance. With poor management, they are prone to shoot shriveling after overwintering. In mild cases, growth is poor, the tree shape becomes disordered, and fruiting is delayed. In severe cases, the entire tree dies, causing missing plants and affecting orchard establishment. If autumn field management is strengthened to promote robust tree growth and well-filled, mature branches, overwintering ability can be effectively enhanced and dehydration shriveling can be prevented. The main autumn management measures are introduced below.
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Key Technical Points for Pollution-Free Apple Cultivation and Management
We fruit growers must recognize the current and future development direction of producing pollution-free apples. We should focus on applying organic fertilizer. The principles of applying organic fertilizer are: first, to increase the organic matter content of orchard soil; second, to combine organic fertilizer with inorganic fertilizer. We should control nitrogen, stabilize phosphorus, and increase potassium.
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Control Methods and Technical Key Points for Apple Little Leaf Disease
Apple little leaf disease occurs mostly in orchards with poor soil and good permeability. Because of low zinc content, soluble zinc salts leach away and the disease becomes severe; frequent watering and rainfall cause large losses of soluble zinc; excessive nitrogen fertilizer use increases the tree's zinc requirement; in saline-alkali soil the pH
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What are the key points of apple autumn pruning techniques?
I. Autumn physiological characteristics: 1. In the late stage of new shoot nutrition (August to November), leaf photosynthates are transported downward in large quantities into buds, fruits, branches and trunks, and roots. 2. In the fruit ripening stage, including early, mid and late maturing varieties. 3. In the late stage of flower bud differentiation,
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Detailed Explanation of Key Technical Points for Soil, Fertilizer and Water Management in Apple Orchards
1. Soil management For the soil management of mature fruit tree orchards, the clear-root method or tree-disk mulching method should be adopted. From spring to before the rainy season each year, after combining fertilization and irrigation, carry out intertillage and loosening of the soil. Weed 1-2 times to keep the soil loose and free of weed growth. In the rainy season, cut grass and cover the tree disk 1-2 times. In autumn, after the fruit trees shed their leaves, carry out autumn plowing. Use an iron shovel to deep-turn the tree disk to 15-20 cm, then apply additional organic fertilizer. Apply topdressing three times, respectively before and after sprouting, after flower drop, and during the fruit enlargement stage, using nitrogen, phosphorus and potassium elements in combination. The ratio is 1:0.6:1.5.
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Detailed Explanation of Key Points of Autumn Fertilization Techniques in Apple Orchards
1. Fertilization principles: On the premise of increasing the application of organic fertilizer and building up soil fertility, emphasize potassium, increase nitrogen, stabilize phosphorus, and supplement micronutrients, and vigorously promote soil-testing-based formula fertilization. 2. Fertilization types: (1) Organic fertilizers mainly include: manure and urine, barnyard manure, compost, cake fertilizer, straw,
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How to Grow Licorice? Remember These Three Key Growing Points
1. Seed treatment: Before sowing, treat the seeds with water at 60-100°C for 30 seconds; then soak them in warm water for 1 day and night, and the germination rate can reach 50%. If treated with concentrated sulfuric acid, remove the seeds immediately and rinse them in clean water once the seed coat turns black, then soak them in warm water, and sow when the seeds swell; the germination rate can reach more than 90%.
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