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Methods and Technical Key Points for Controlling Powdery Mildew in Melons
1. Select disease-resistant varieties. There are obvious differences in disease resistance among different melon varieties, so selecting disease-resistant varieties is the key to controlling the degree of disease occurrence. 2. Clean the field. After the crop is harvested, weeds and residues should be removed promptly. During the melon growing period, weed promptly, remove ⟦4 <p>1. Select disease-resistant varieties. There are obvious differences in disease resistance among different melon varieties, so selecting disease-resistant varieties is the key to controlling the degree of disease occurrence.</p><p></p><p>2. Clean the field. After the crop is harvested, weeds and residues should be removed promptly. During the melon growing period, weed promptly, remove diseased leaves, and take weeds, residues, and diseased leaves outside the field to be burned in a centralized manner.</p><p>3. Scientific management to enhance plant disease resistance. Apply sufficient basal fertilizer, especially heavily apply decomposed organic fertilizer, and plow deeply and harrow finely; prevent excessive vegetative growth and premature senescence of plants, organize branches and vines promptly, and strengthen ventilation and light penetration; during the mid-growth stage, pay attention to topdressing phosphorus and potassium fertilizers, and use foliar fertilizer well to cultivate strong branches and vines and enhance the disease resistance of the population.</p><p>4. Scientific irrigation. Create environmental conditions suitable for melon growth but unfavorable for the occurrence and development of powdery mildew. Irrigation should follow 4 principles: do not water on cloudy days but water on sunny days, do not water in the afternoon but water in the morning, do not water heavily but water lightly, do not water on the surface but water under the surface (that is, subsurface irrigation under film).</p><p>5. Chemical control. Use 15% triadimefon wettable powder at 1000-1500 times dilution, or 40% Daconil suspension concentrate at 800-1000 times dilution, or 40% Fuxing emulsifiable concentrate at 6000 times dilution, or 10% Shigao water-dispersible granules at 2000 times dilution, or 30% Tefuling wettable powder at 5000 times dilution, or 50% thiophanate-methyl wettable powder at 1000 times dilution, etc., alternating sprays for control, spraying once every 7-10 days, for 2-3 consecutive sprays. Medication is prohibited 7 days before melon harvest to allow safe harvesting.</p>
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Key Technical Points for Greenhouse Management of Muskmelon After Transplanting
1. Greenhouse temperature regulation After transplanting, in the early stage, in order to raise the greenhouse temperature and promote seedling recovery, the greenhouse film should be fastened tightly, and the straw mats should be uncovered and covered in a timely manner; before flowering and fruit setting, the daytime greenhouse temperature should be maintained at 25-28°C, and at night at 16-18°C. When the greenhouse temperature exceeds 28°C, the greenhouse film should be opened for ventilation. As the plants grow
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High-yield Cultivation Measures and Technical Points for Melons
I. Sowing Period For spring protected cultivation, the temperature inside the greenhouse should be stable above 10°C at transplanting time; counting back 30-35 days from this point is the optimal sowing period. II. Raising Strong Seedlings 1. Preparation of nutrient soil: decomposed barnyard manure, horse manure (or chicken manure), and sieved field topsoil, in a ratio of 3:2:
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Key Points of Fig Cultivation and Management Techniques
Figs like a sunny, warm and humid environment; they can tolerate drought but fear waterlogging; they like fertile, moist sandy soil. But they are also fairly adaptable to other soils and can grow normally in heavy calcareous soil, acidic red soil and alluvial clay. For potted figs, every year in early spring
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Key Technical Points for the Prevention and Control of Apple Pests and Diseases in the Mid-to-Late Stage
The young fruit stage is the peak infection period of early defoliation disease, the initial stage of branch ring rot, and also the peak damage period of aphids, leaf mites and scale insects. Therefore, doing a good job in the prevention and control of apple pests and diseases during the young fruit stage is crucial for strengthening tree vigor, improving fruit quality and achieving increased
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How to prevent early flowering in mango? Key points for planting management
Mango is an evergreen fruit tree that consumes a large amount of water and nutrients. If it encounters long-term drought weather, combined with improper water and fertilizer management, once the accumulated temperature is sufficient, flower bud differentiation will be rapid, and early flowering will occur, making it vulnerable to low-temperature cold and overcast weather; the flowers cannot be pollinated, the fruit-setting rate is low, causing reduced yield or total crop failure
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Detailed Explanation of Key Techniques for Flower and Fruit Management in Mango Orchards
(1) Use of plant growth regulators: When using plant growth regulators, the specified concentration, method of application and timing must be followed; plant growth regulators that have not been approved and registered for production by the state must not be used. Plant growth regulators used for controlling shoots and promoting flowering
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Control Methods and Technical Key Points for Mango Shoot Blight and Gummosis
Mango shoot blight and gummosis mainly damages branches and the main trunk, causing dieback, but it can also harm seedlings and fruit. When seedlings are affected, dark brown necrotic spots usually appear from the bud graft point or wounds, rapidly spreading upward and downward, causing the scion to die. When the main trunk or branches are affected, the cortex
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Detailed Explanation of Key Cultivation Techniques for Newly Established Citrus Orchards
1. Orchard establishment should be of high quality and started early. The key points are digging the trenches well and applying sufficient basal fertilizer, passing the first hurdle of orchard establishment well. Dig continuous trenches 1 m wide and 0.6 m deep along the contour lines, fill each mu with 2500--30000 kg of green manure, and apply an appropriate amount of nitrogen and phosphorus fertilizer; next: for low-lying land and paddy fields, drainage ditches should be dug well, with the main drainage ditch more than 0.80 m deep, to reduce field humidity and lessen pest and disease damage. Orchard establishment should begin promptly after the autumn harvest to ensure enough time for the green manure and soil to decompose fully; field-grown seedlings are best planted before late October (mid-March in spring), while container seedlings should be planted earlier, before October (after March in spring); planting time should be early rather than late.
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Detailed Explanation of Key Points for Frost Protection Techniques in Citrus Cultivation
For fruit trees that have suffered relatively severe frost damage, adopt tree-preservation measures: First, mound soil to increase temperature. Mounding soil protects the root crown; the standard for mounding is that the root system is not exposed and the root crown is covered. Second, whitewash and wrap the branches and trunk. The trunk and main branches form the tree framework and are prone to frost damage, which leads to weakened tree vigor
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