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Methods and Technical Key Points for Controlling Rice Pests and Diseases in the Mid-to-Late Stage
This year's rice insect pests are mainly migratory and boring pests, with an estimated affected area of 730 million mu-times. With multiple pests and diseases jointly affecting mid-to-late stage rice, experts recommend using a combination of agroecological control techniques and chemical control measures.
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What are the four key points of field management for sweet potato cultivation?
First is topdressing to promote seedling growth. Cultivate 7-10 days after planting; per mu, use 20-30 loads of human and livestock manure water mixed with 10-15 kg of ammonium bicarbonate or 5 kg of urea (preferably 7-10 kg of 40% high-efficiency compound fertilizer) to irrigate the planting holes; at the same time, per mu, apply 100-150 kg of plant ash mixed with 25-30 kg of superphosphate between the holes, do not
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How to manage sweet potatoes in the mid-growth stage? Master these key points
Drought prevention and drainage: In most areas with high temperatures and abundant rain, the aboveground stems and leaves of sweet potatoes grow rapidly, and nutrients move upward rather than downward. At this time, attention should be paid to drainage, that is, promptly and quickly remove standing water from the field surface after rain to control excessive aboveground growth. If there is drought, watering is needed to prevent it, so that the tubers can rapidly expand in soil that is neither wet nor dry.
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Detailed Explanation of Key Points for High-Yield Cultivation Technology of Film-Mulched Sweet Potato
1. Select suitable plots and apply more fertilizer. It is best to choose fertile, level, and irrigable loam soil for planting sweet potatoes. For film-mulched plots, deepen the plow layer. Autumn plowing should be about 25 cm deep. Apply more than 2500 kg of high-quality decomposed farmyard manure per mu. When plowing, broadcast 2/3 of the farm manure and apply 1/3 in furrows when ridging.
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High-Yield Cultivation Techniques and Field Management Key Points for Summer Sweet Potato
In recent years, with the deep processing of sweet potato, its own economic value has continued to grow. The planting area of sweet potato has increased year by year, especially the planting area of summer sweet potato has grown even faster. To achieve high yield in summer sweet potato, the following five measures should be taken: 1. Plant at the right time and rush to transplant. Summer sweet
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What are the key techniques for raising sweet potato seedlings in cold frames
Sweet potato is rich in starch, protein, fat and various vitamins, and has become a very popular health food today. At the same time, it is also a very important chemical raw material with extremely broad development prospects. Sweet potato has the characteristics of wide adaptability, strong stress resistance, tolerance
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What are the key points of fertilization techniques for sweet potato cultivation?
Fertilization for sweet potato should adopt appropriate fertilization methods according to climate, soil characteristics and the growth conditions of the plant at each growth and development stage. The key points are as follows: Base fertilizer is the main measure in sweet potato fertilization. Base fertilizer should be mainly high-quality organic fertilizer. Sandy soil, with good permeability,
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Five Key Points for Late-Stage Sweet Potato Management to Ensure a Bumper Harvest
After late August, summer sweet potatoes enter the critical period of tuber expansion. At this time, management should be strengthened. On one hand, the nutrients needed for tuber expansion should be met to the greatest extent possible; on the other hand, premature senescence of stems and leaves should be prevented, photosynthesis should be enhanced, and nutrient accumulation should be increased. Specific yield-boosting technical recommendations are as follows
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Key Technical Points for Soil Testing and Formulated Fertilization in Sweet Potato Cultivation
1. Fertilizer requirements: Of the three major elements nitrogen, phosphorus and potassium, sweet potato has the greatest demand for potassium, followed by nitrogen, then phosphorus. Sweet potato likes potassium, and increasing potassium fertilizer has a clear effect on both yield and quality. Sweet potato absorbs few nutrients at the seedling stage; from the branching and tuber-setting stage to the vigorous stem and leaf growth
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Control Methods and Technical Key Points for Sweet Potato Brown Spot Disease
Sweet potato brown spot disease, also known as angular leaf spot. [Pathogen scientific name] Cercospora batatac Zimm [Host crops] Sweet potato, water spinach, morning glory, etc. [Disease diagnosis] It mainly damages leaves. When leaves are affected, water-soaked small spots first appear, then the lesions gradually expand
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