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What are the common types of rice pests and diseases?
What are the common pests and diseases of rice? How to prevent and control them? We also ask experienced rice growers to help introduce this. Nearly half the world's population relies on rice as a staple food, but during rice cultivation it is often harmed by rice blast, bacterial leaf blight, bacterial leaf streak, sheath blight, rice false smut, and rice planthoppers and rice stem borers, so Zhongdi Web has compiled...
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What are the common types of rice pests and diseases?
What pests and diseases affect rice? Please introduce control methods. Rice pests and diseases include rice blast, sheath blight, rice stem borers, rice planthoppers, and the rice red-spotted black spittlebug. They cause serious damage to rice, so control should be taken seriously. For control methods, refer to the following: Rice blast: long-term deep flooding or excessive drought, and excessive application of nitrogen fertilizer, lead to severe rice blast. Rice has three susceptible periods in its life, namely the seedling stage, the active tillering stage, and the full heading stage. Neck blast has the greatest impact on rice yield, so early prevention should be carried out at the booting stage and full heading stage. Rice blast is divided into: seedling blast, leaf blast, node blast, neck blast and grain blast. Rice blast control should adopt comprehensive control measures centered on planting disease-resistant high-quality varieties, based on healthy cultivation, and supplemented by chemical protection.
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What are the common types of physiological diseases in sweet peppers?
What are the common physiological diseases of sweet peppers? Please give an introduction. The common physiological diseases of sweet peppers are: 1. Sunscald. 1. Symptoms. The cause of this disease is direct strong sunlight, and symptoms appear only on the sun-facing side of the fruit. In the early stage, the affected part fades in color, becomes slightly wrinkled, and appears grayish-white or slightly yellow. The flesh of the affected part loses water and becomes thin,...
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What varieties of specialty vegetables are there? Detailed introduction to common types
What varieties of specialty vegetables are there?
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What types of pests and diseases occur at the wheat seedling stage
What pests and diseases occur at the wheat seedling stage? Please introduce wheat rust. 15~20 days after wheat emergence, select wheat fields with conditions favorable for disease development for investigation. When the diseased leaf rate reaches 10%, and the autumn temperature is relatively high with more rainfall, immediately spray Heguoli or triadimefon for control, that is, use 12.5% Heguoli wettable powder 1... per mu
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What are the main rice pests and diseases? Common types at a glance
How to raise rice seedlings well? Methods wanted. Rice seedling-raising techniques: 1: How to determine the seedling-raising period? For insulated dry seedling-raising of rice, start raising seedlings and sowing after the air temperature steadily passes 5°C-6°C (after covering with plastic film or greenhouse film, the temperature rises above 12°C). In Heilongjiang Province, this is generally in mid-to-late April; do not sow in May. The best sowing period is April...
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What pests and diseases affect Welsh onions? Common types explained in one article
What pests and diseases affect Welsh onions? How should they be controlled? Please explain. The control of Welsh onion pests and diseases should be based on prevention, implementing a 2-3 year rotation with crops other than Allium species; cleaning the field to eliminate sources of pests and diseases; selecting disease-resistant varieties; disinfecting seeds, that is, before sowing soak the seeds in 50°C warm water for 25 minutes while stirring constantly, then soak...
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Fertilizing Chinese Yam Requires Care: Analysis of the Characteristics of Two Types of Fertilization
Chinese yam is a crop of the Dioscoreaceae family and a vegetable much loved by people. It not only has high nutritional value and a unique flavor, but can also be used as medicine. Due to increased market demand, the planting area of Chinese yam has continued to expand in recent years. Farmer friends often call the hotline to ask about fertilization issues in the cultivation of Tiegun Chinese yam. Below is a list of the current two...
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What are the main diseases of Welsh onion? A complete guide to identifying common types
Once the white pseudostem enters its vigorous growth period, the threat of pests and diseases also enters a high-incidence stage. The main pests and diseases are: purple blotch, downy mildew, soft rot, onion maggot, onion thrips, onion leaf miner, and beet armyworm. 1. Purple blotch: in the early stage of the disease, spray 75% chlorothalonil wettable powder at 500-600 times dilution, 58% metalaxyl-mancozeb...
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What types and characteristics do specialty rice varieties have?
I. The concept of specialty rice II. Types and characteristics of specialty rice 1. Colored rice 2. Aromatic rice 3. Special-purpose rice I. The concept of specialty rice Specialty rice refers to rice with specific genetic traits and special uses, mainly distinguished from ordinary rice by the particularity of its use. Specialty rice generally includes three categories: colored rice, aromatic rice and special-purpose rice. Although its varieties account for only about 10% of rice germplasm resources, it has received widespread attention at home and abroad because of its special nutritional, health-care and processing-and-utilization characteristics.
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