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How to control pests and weeds in single-season rice seedling fields? Here are the control recommendations
I. Weed control in seedling fields 1. Weed control before plowing: 7-10 days before plowing the seedling bed, use 41% glyphosate 150 ml/mu or 10% glyphosate 1000 ml/mu diluted in 30 kg of water for fine spraying to control old weeds before sowing. 2. Weed control after sowing: ① 1-2 days after sowing germinated seeds, use 17.2% bensulfuron-methyl and piperophos wettable powder (Youhebao) 210 g/mu diluted in 45 kg of water for fine spraying. ② At the needle-standing stage of seedlings, use 40% bensulfuron-methyl and pretilachlor wettable
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Rice quality amylose tester successfully developed through the 948 Program
To fundamentally improve the current rice quality, namely the amylose content of rice, in 2001 the Ministry of Agriculture included the "Rice Quality Amylose Tester" project in the "948" Program. Organized and implemented by China Agricultural University, the project aimed to develop, through this research, a high-quality paddy quality testing instrument suitable for all stages and all levels. Under the leadership of project leader Professor Jia Guiru, Director of the Department of Applied Physics at China Agricultural University, the project has now been completed and has achieved remarkable results. It is reported that the rice
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Rice midge harms rice, how can it be controlled effectively?
Rice midge, commonly known as red worm or red thread worm, damages the young roots and young shoots of rice with its larvae, causing floating seedlings, and feeds on the embryo and endosperm of ungerminated seeds, preventing the seeds from germinating. Rice seedling fields and direct-seeded fields suffer severe damage. The adult is a small moth, with wings shorter than the body; when resting, the front legs are raised and swing up and down. The larvae are red or pale yellow, with a limb-like protrusion on the ventral side of the prothorax. It occurs 2-3 generations per year, and the first generation damages rice. It overwinters as nymphs and adults in weeds. Adults appear in early May of the second year, and lay eggs in late May.
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Home-style recipe for stir-fried shredded eel with Chinese celery, fresh, fragrant, crisp and tender, and great with rice
Method: 1. Slaughter the eel, wash it and cut it into shreds. Add salt and cooking wine to the shredded eel to season it and remove the fishy smell. 2. Remove the strings from the Chinese celery and cut it into shreds; cut the cilantro into sections. 3. Put peanut oil in the wok; when the oil is hot, add the shredded eel and stir-fry until half cooked, then add the shredded Chinese celery, shredded onion and lily bulbs, stir well and pour out. 4. Heat the wok and add oil; when the oil is hot, add the above ingredients, splash with cooking wine, add white sugar, ground pepper and salt to season, thicken with starch, then add the cilantro sections and stir well.
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Ligustrum: Arbor-type Market Looks Promising, Shrub-type Prices Fall
Ligustrum is an evergreen tree or shrub of the genus Ligustrum in the family Oleaceae, and is one of the major products in China's landscaping nursery stock market. The common nursery varieties on the market are mainly small-leaf ligustrum, golden-leaf ligustrum, red-leaf ligustrum, etc. The main producing areas for ligustrum nursery stock are the 5 provinces of Hunan, Hubei, Jiangxi, Jiangsu and Zhejiang, among which Hunan and Jiangxi export relatively large quantities of large-specification arbor-type stock with a diameter at breast height of over 8 cm, and out-of-stock situations have appeared in quite a few areas. In 2004, the prices of Hunan stock with a diameter at breast height of 8, 12, 16, 20 and 30 cm were 200, 300, 500, 1
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Detailed Explanation of Key Points on Licorice Harvesting and Processing Technology
Harvesting and Processing Licorice is generally harvested after 1-4 years of cultivation. In Hebei and Beijing, it is harvested after 1-2 years of cultivation; in Inner Mongolia; Northeast China, and **, it is harvested after 3-4 years of cultivation. There are currently 2 cultivation methods: one is direct seeding, and the other is raising seedlings in the first year and transplanting in the second year. When transplanting, plant them flat and lay them horizontally in the field to facilitate harvesting. The first method is simpler and requires less labor; the second method is suitable for small-area household planting with intensive cultivation. For large-area planting, harvesting is a problem, and manual digging is very difficult. After many years of testing, a 55-type Iron Ox rubber-tired tractor can be used, with a plowing depth of about 45 cm, plowing one row at a time, and then manually using a four-tooth rake to pick out the licorice roots plowed out, then plowing the second row. One tractor paired with 10 workers can generally harvest about 10 mu per day, and the root damage rate is also somewhat lower than manual digging. The residual roots lost in the field are about below 10%, meeting the requirements, opening a new path for large-area licorice planting. After the harvested licorice roots are dried in the sun for a few days, use manual shears or a guillotine to cut off the rhizome heads and tails, and cut out licorice strips for cutting into oblique slices for export. The rhizome heads, fibrous roots, and tails are tied into bundles and used as hairy licorice for extracting licorice paste. For licorice grown for two years, the general dry weight of licorice strips is about 250-300 kg per mu, and hairy licorice is about 300 kg per mu. The output value per mu can reach about 4000 yuan.
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Licorice should not be stored for too long; the storage time of medicinal materials must be reasonably controlled
Licorice is generally stored as compressed bales wrapped in burlap, each weighing 50 kg, kept in a dry, ventilated place, with a safe moisture content of 12%-14% for the commodity. There are more than ten kinds of warehouse pests of licorice, including the coffee bean weevil, the brown mulberry borer, and the four-spotted chestnut borer. Fumigation with nitrogen or carbon dioxide for 514 hours can kill all adults and larvae, with no obvious change in the inner quality of licorice. Licorice is prone to mildew. If the air humidity is too high, mold spots or white and green mycelium easily appear on the surface of licorice. The following measures can be taken for prevention and control
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Licorice is not difficult to grow; master the method and you can grow it well.
At present, there is great demand for licorice products in domestic and international markets. Experts believe that to resolve the contradiction between the demand for licorice products and environmental protection, the most critical thing is to develop the artificial cultivation industry of licorice. From the current actual situation of artificial licorice cultivation, promoting the coordinated progress of planting and fenced breeding, and rationally developing the path of base construction, is practical and feasible. In fact, licorice is not a difficult plant to grow; as long as the soil and moisture are suitable, it can be planted on a large scale. Some people believe that the key to solving the problem of artificially cultivating licorice is now mainly not funding.
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How to sow licorice? 5 steps to easily get planting done
Sowing licorice is a relatively simple method for this type of herb, but its key points should also be noted when cultivating it. The key points are as follows: 1. Sowing method. Site selection and land preparation. Licorice has wide adaptability and does not have strict requirements for the cultivation environment. It can be cultivated in semi-arid and arid areas with an average temperature of 4°C to 12°C and more than 2600 hours of sunshine, and it can also be planted on poor farmland returned from cultivation. However, it should also be noted that waterlogged low-lying areas, areas with a high groundwater table, and areas with heavy clay and acidic soil are not suitable for planting licorice.
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Occurrence and Control Methods of Powdery Mildew in Licorice
The pathogen is a type of imperfect fungus among the fungi, with the scientific name Erisiphepolygoni. It damages the leaves, and diseased leaves develop white powdery growth on both the upper and lower surfaces. For control, spray 0.2-0.3 degrees Baume lime sulfur mixture.
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