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Qing'an's 700,000 mu of rice adopts cold-region dry seedling cultivation and controlled irrigation technology for water saving and high yield
The controlled irrigation, water-saving and high-yield technology for cold-region dry seedling rice has been successfully tested in Qing'an. This year, 700,000 mu of rice in this county are using this technology. According to expert calculations, it saves about 450 cubic meters of water per mu, saves 11.2 yuan in pumping costs, and increases yield by an average of 22 kg per mu. In recent years, through the trinity approach of "engineering water saving, mechanism water saving, and technical water saving," Qing'an has reduced irrigation water per mu from nearly 1,000 cubic meters to 500 cubic meters. Over 10 years, it has expanded the paddy field area from 640,000 mu to 1.17 million mu, accounting for half of the cultivated land area. Last year
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What are the control methods for the rice leaf roller?
Rice leaf rolling is caused by the rice skipper and the rice leaf roller. For controlling the rice leaf roller, 34% profenofos-fluorine emulsifiable concentrate is a new-generation insecticide. This product is a new compound ultra-long-acting insecticide with a broad insecticidal spectrum and stable efficacy. Field trials show that spraying 50 ml per mu diluted in 40 kg of water, with a treatment interval of 23 days, achieves a control effect of over 95%, requires 2 fewer applications than conventional pesticides, reduces pesticide cost by more than 50%, and can save 2/3 of labor, truly delivering labor savings, cost reductions, and improved quality and efficiency.
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What are the methods for controlling rice pests?
2.5% rotenone EC and other rotenone-cypermethrin patented series products are new plant-based insecticides developed to address two major problems in current agricultural production in China: pesticide-resistant pests and the frequent occurrence of food poisoning from pesticide residues. They have obtained a national invention patent and the Guangdong Provincial Science and Technology Progress Award. Large-scale trial demonstrations by plant protection experts in our province show that for controlling pesticide-resistant pests such as rice leaf roller (Cnaphalocrocis medinalis), rice planthopper, striped stem borer (Chilo suppressalis), armyworm, diamondback moth (Plutella xylostella), red spider mite, thrips, rust mite and scale insect, using a 1000
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Four key passes must be secured in controlling rice sheath blight
In recent years, sheath blight has risen to become the most important disease of rice, and it has four major characteristics: First, it occurs over a wide area. Second, there are very few varieties resistant to sheath blight. Third, the degree of damage is increasingly serious, even causing the plants to break through the top and lodge. Fourth, it first develops on the lower part of the rice plants, making it easy to overlook and miss the favorable timing for control. In control strategy, strictly securing the four passes is the key. 1. The pass of salvaging sclerotia - sheath blight mainly overwinters in rice fields in the form of sclerotia, and overwintering sclerotia generally have 60%-70% able to germinate from winter and spring through to early rice transplanting. The vast majority of sclerotia are lighter than water and can float with the water for a long time. After the rice field is irrigated,
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What are the methods for controlling Phytophthora disease in carnations?
Symptoms The stems and roots are affected. When infected at the seedling stage, it causes root rot and the plants die. After planting out, the main stem and branches become infected; the affected areas appear water-soaked and turn grayish-white when dry, and the stems and leaves above the affected area wither. The pathogen Phytophthora nicotianae Breda is called tobacco Phytophthora and belongs to the fungal subdivision Mastigomycotina. The sporangiophores emerge from the stomata and measure 10-744 microns long; the sporangia are borne singly, long elliptical or oval, measuring 28.8-67.5 x 12.5-30 mic
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A Detailed Guide to Controlling the 3 Major Diseases of Carnations
Leaf spot, Fusarium wilt and viral diseases are the main diseases that occur on carnations. The control methods are as follows: Leaf spot mainly infects the leaves, and the disease usually starts on the lower leaves. On severely affected plants the diseased parts are distorted, and the diseased leaves wither, droop and hang down over the stem, but do not fall off. Old leaves are affected more often and more severely, while new leaves are affected less, and the disease occurs more in open-field cultivation than in greenhouses. Control methods: start spraying regularly from the early stage of the disease; spray a fungicide immediately after disbudding and cutting flowers for protection. A 75% chlorothalonil wettable powder solution diluted 800 to 1000 times can be used for spraying
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Detailed Explanation of Key Points of Controlled Atmosphere Preservation Technology for Mushrooms
1. Harvesting: Harvest when the fruiting bodies have fully grown and their volume has increased noticeably. If harvested too early, the mushrooms will be of poor quality and the yield will be reduced; if harvested too late, the fruiting bodies are more likely to age, open their caps, and change color. During harvesting, mechanical damage should be reduced, and harvesting tools and packaging containers should be cleaned and disinfected. 2. Pre-storage treatment: After the mushrooms are harvested, trim off the mushroom stems. If the mushrooms have yellowed or turned brown, rinse them in a 0.5% citric acid solution for 10 minutes, remove them and drain off the water droplets, then quickly pre-cool the mushrooms. Pre-cooling is very important. Because at higher temperatures, it will accelerate
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How to make Crystal Crab Roe Rolls? Detailed steps shared
Cuisine: Cantonese cuisine. Characteristics: crisp and refreshing, fragrant, shaped like crystal. Ingredients: 30 g swimming crab meat, 200 g white radish, 50 g carrot, 30 g cucumber. Method: Cut the white radish into thin slices using the roll-cutting method, lightly salt until soft, rinse with cold water and set aside. Shred the carrot and cucumber, stir-fry together with the crab roe to make a crab roe filling. Wrap the above crab roe filling in the white radish slices to make radish rolls. Soak the radish rolls in a sweet-and-sour sauce made with white vinegar, sugar and lime juice for 2 hours. Cut into shape and serve.
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What are the methods for preventing and controlling soybean flower and pod drop?
1. Reasonable topdressing. Usually, soybean is topdressed once with nitrogen fertilizer at the early flowering stage, which can reduce the rate of flower and pod drop, extend the lifespan of the plants, increase grain weight, and raise yield. Generally, 150-230 kg of ammonium nitrate or 120-180 kg of urea can be applied per hectare; at the flowering and podding stage, foliar topdressing can be carried out, using 0.5 kg of urea, 1.5 kg of superphosphate, 0.3 kg of potassium sulfate, and 30 g of borax per mu, adding 50 kg of water, extracting the leachate, and spraying it on the leaf surface, which helps preserve flowers, increase pods and grains, and raise the 100-
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Detailed Guide to Identifying and Controlling Common Mushroom Diseases
I. Fungal Diseases 1. Brown rot. Also known as white rot and blister disease. The pathogen spores are brought into the mushroom house through casing soil and spread by air and insect pests. When the air in the mushroom house is not circulating and high temperature and high humidity occur, the disease is severe. A large amount of white mycelium forms on the mushroom bed. After infection, the stipe of the fruiting body swells into a blister-like shape, and in severe cases deformed mushrooms form, turning brown, or white flocculent spherical masses form in which the cap and stipe are indistinguishable. Control method: mainly disinfect the casing soil. Place the casing soil in an empty room, and fumigate at a ratio of 5 ml of formaldehyde plus 3 g
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