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What are the control methods for Spirogyra in rice fields?
The flocculent masses of Spirogyra in rice fields press and entangle the seedlings, causing delayed development, dead seedlings, or single plants with no tillering; they lower the water temperature, and when the Spirogyra coverage reaches 30%, they can reduce the water temperature by 2-3°C; when Spirogyra occurs in large amounts in rice fields, the applied fertilizer cannot reach the rice
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Prevention and Control Methods and Technical Key Points for Frost Damage in Apple Trees
Frost damage has always been a common factor causing damage to fruit trees, and this is especially true for apple trees. Moreover, since apple trees are perennial plants, once frost damage occurs, its effects are long-lasting. The series of rot diseases caused by frost damage also gives fruit growers quite a headache. Below
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A Complete Guide to the Correct Fertilization Methods for Potatoes
With the adjustment of the planting structure, more and more farmers are growing potatoes, but due to the influence of traditional fertilization practices, they use only farmyard manure and diammonium phosphate as base fertilizer for potatoes and do not apply topdressing. This fertilization method is unscientific. The average fertilizer application rate for potatoes in northern China is
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How to Grow Enoki Mushrooms: Detailed Explanation of Cultivation Methods and Technical Key Points
Whether the cultivation and management techniques for enoki mushrooms are appropriate determines the yield and quality of enoki mushrooms: 1. Change from wide-bag cultivation to narrow-bag cultivation. Many people believe that using 25 cm x 50 cm plastic bags to cultivate enoki mushrooms is best. But in reality, wide bags are prone to contamination by competitor fungi,
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Year-Round Cultivation Methods and Key Technical Points for Pure Fragrant Oil Wheat Vegetable
1. Variety characteristics: plant height 30-40cm, spread 20-30cm, leaves lanceolate, about 40cm long, 6-10cm wide, green, leaf surface smooth, cold-resistant, heat-tolerant, bolting-resistant, strong adaptability, can be cultivated year-round in open fields and protected areas, seeding rate per mu is 30-40g. 2. Dis
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Methods and Technical Key Points for Controlling Pests and Diseases of Gastrodia elata
There are two common diseases in Gastrodia elata cultivation: one is mold damage, and the other is rot disease. Rot disease and its control. Gastrodia elata rot disease is caused by multiple factors. When seed tubers are damaged by pests, mechanical injury, or exposed to adverse high-temperature and high-humidity conditions, they are susceptible to infection by miscellaneous fungi, causing rot.
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How to Protect Winter Vegetables from Freezing? A Detailed Guide to Practical Protection Methods
In winter, crops and vegetables are also afraid of the cold. How can we ensure the normal growth of crops in winter? Freeze protection measures for greenhouse vegetables. 1. Strengthen covering. Build small arched tunnels inside the greenhouse, using thin bamboo poles etc. as arches, cover with film at night, and cover the film with straw mats; cover the ground inside the greenhouse with plastic film to increase temperature and retain moisture. Use plastic film as a skirt around the bottom inside the greenhouse, which can significantly reduce the invasion of cold air at the bottom; at the same time, pay attention to plugging gaps in the greenhouse to minimize heat loss through gaps.
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Detailed Guide to Artificial Germination of Loofah Seeds
How to artificially germinate loofah seeds? When planting loofah in spring, because both the air temperature and soil temperature are relatively low, it is difficult for the seeds to sprout, making it hard for loofah seedlings to emerge and even affecting the seedling emergence rate of loofah. For this reason, artificial germination can be carried out, and now the editor will
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How to grow green asparagus? A step-by-step guide to the planting method
Summary Site selection: It is best to choose sandy loam soil with deep soil layers, high organic matter content, good permeability and drainage, and good irrigation and drainage conditions; a neutral soil pH is ideal. Fertilization: Apply the bud-promoting fertilizer, relay fertilizer and autumn-growth fertilizer in a timely and reasonable manner. Pest and disease control: Mainly prevent asparagus stem blight
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Seven Common Pests and Diseases and Their Control Methods
Brown Spot Disease Brown spot disease is a worldwide disease that, in severe cases, often causes large numbers of plant leaves to turn yellow and drop off. Symptoms The pathogen of brown spot disease is a fungus that mainly attacks the tips of leaves, appearing brown with a clear boundary from the healthy part. Later, the edges
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