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What fish and shrimp are good to farm in the Year of the Pig? Recommended farming species
In the blink of an eye, it is time to release fry again. Which aquaculture species look promising this year? According to relevant information, the American crayfish, that is, the red swamp crayfish, is an important edible shrimp species and also an important bait for fishing. The annual demand for freshwater crayfish in European and American markets is 120,000-160,000 tons, with self-supply capacity less than 30%. Vigorously developing the farming and processing of freshwater crayfish at present offers very broad prospects in the international market. In the domestic market, freshwater crayfish consumption is extremely hot; in Nanjing, Jiangsu Province alone, from June to September each year
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The key to high yields of shiitake mushrooms lies in doing a good job of inoculation
Dense inoculation: increase the inoculation points on the log; the more inoculation points, the larger the colonisation area, and the mycelium can permeate the log in a relatively short time. Gas exchange between the log and the outside world mainly relies on absorbing and evaporating water; the alternating wet-dry movement of moisture allows the interior of the log to receive sufficient oxygen, enabling the mycelium to penetrate deep into the log to feed, thereby accelerating the maturation of the log and reducing the chance of infection by contaminating fungi. Deep inoculation: deep inoculation holes hold more spawn, which helps prevent drought and reduces the temperature-difference stimulation of the spawn blocks at the bottom of the holes from the outside. The mycelium inside the spawn blocks, under relatively constant temperature and humidity
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How Good Is a Dog's Reproductive Ability? A Detailed Look at Canine Reproductive Characteristics
Reproductive Ability Dogs reach sexual maturity before 1 year of age and show signs of estrus (commonly known as "heat"), but the timing of physical maturity varies depending on the breed. Generally speaking, small breeds reach physical maturity earlier than large breeds. For small dogs such as the Pekingese and the Shih Tzu, it is advisable to breed and conceive at the second estrus (around 12-14 months of age), while for the Great Dane, the German Shepherd and others, breeding after 18 months of age is better, because by then they have reached physical maturity. The time of highest conception rate is on the
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How to treat pear tree top rot? Silicon-calcium-magnesium fertilizer has good control effect
Pear top rot, also known as pear stem rot and pear iron-head disease, generally occurs on European pear varieties, so it is also called European pear top rot. The causative factor of pear top rot is currently unclear and is generally considered a physiological disease. In order to seek effective control methods, we conducted a control experiment using silicon-calcium-magnesium fertilizer and achieved good results. The experimental results are summarized as follows. (1) Experiment and methods: (1) Experimental materials. The experiment was set up in a pear orchard in Xishanbeitou Village, Dayao Town, Muping District, Yantai, Shandong, with the variety Bartlett pear
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New hybrid indica rice combination K You 818: high yield, good quality and disease resistance
K You 818 is a new hybrid indica rice combination with high yield, good quality and disease resistance, bred by the Institute of Agricultural Sciences of the Lixiahe Region of Jiangsu, and produced and distributed exclusively by Nanjing Shenzhou Seed Industry Co., Ltd. This variety has applied for national new variety protection and patent, with the announcement number: CNA000548E. It passed the Jiangsu provincial approval in 2001, and in the same year entered the national southern rice region high-yield group regional trial, with a yield of 660 kg per mu, ranking first among the tested combinations. In 2002, it exceptionally entered the national southern rice region production trial, with a yield increase of 10.65% per mu compared with the control, ranking first, making it
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How good is Hanadao 65? An introduction to its variety characteristics and cultivation points
Hanadao 65 is a new dryland rice line newly bred by China Agricultural University. It is of the japonica type with strong drought resistance, and its whole growth period is 95-125 days. In Hejian City, Hebei Province, it was planted on demonstration plots of 405 hectares from 1997 to 1999, generally yielding about 400 kg per 667 sq m, with high-yielding plots actually producing 457 kg (sown after wheat stubble from June 15-20, with a growth period of 105-110 days). Characteristics and features: plant height 85-105 cm, relatively thick and sturdy stems, compact plant type, flag leaves held upright, dark green leaf color, strong lodging resistance, high resistance to rice
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How should high-quality cotton seed be planted to produce good seedlings?
At present, most cotton-growing regions in China use nutrient-pot seedling raising. Generally, to evaluate whether cotton seed emergence is good or poor, one looks at the emergence rate and, second, at the seedling survival rate. The reasons for a low emergence rate are: first, in some cotton seed, the proportion of autumn bolls or late-autumn bolls is too large, which lowers the germination rate. The germination rate of seed selected from summer bolls or mid-season flowers is mostly above 80%; second, during cotton seed processing, quality control was not strict, and the proportion of damaged seed exceeded the standard; third, before or after sowing cotton seed, no fungicide disinfection was carried out on the pot soil and the soil covering the pots, or the disinfectant chosen was not the right one; fourth, this year's cotton seed
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How to control black locust aphids? Master these methods for good results
Control methods for black locust aphids: 1. Protect natural enemies such as ladybugs, hoverflies, green lacewings and aphid parasitoid wasps. 2. Strengthen pest monitoring and forecasting. When the number of winged aphids suddenly increases and the rate of aphid-infested plants reaches 20% to 30%, spray pesticide promptly. If the ratio of ladybugs to aphids reaches 1 to 100, and the aphid population shows a declining trend, stop spraying pesticide for control and protect natural enemies. 3. During the peak outbreak period, spray 50% pirimicarb wettable powder at 1500 times dilution, 10% imidacloprid wettable powder at 1500 times dilution, or spray EB-82 aphid-killing fungus at 300 times dilution
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How to raise meat dogs? Selecting good breeding dogs is key
To succeed in dog breeding, you must select excellent breeding dogs. In general terms, a meat dog refers to an F1 or F2 crossbred dog produced by crossing a large purebred dog with a local dog, or a dog bred by crossing F1 and F2 generations back together. The selection of the purebred male dog is especially important. Currently, the purebred male dogs selected in China include the Tibetan Mastiff, Great Dane, Saint Bernard, and others. Among them, the F1 generation of the Tibetan Mastiff is active and fierce, not suitable for group raising; the F1 generation of the Great Dane has a low meat yield. The Saint Bernard, however, as a sire line for meat dog breeding, has the following advantages: fast growth rate, adult male dogs 75-100
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Strawflower is both a flower and a tea, good for ornamental viewing and for brewing tea
Strawflower is also known as shell flower. The flowers are hard, shaped like shells or wheat straw, and resemble chrysanthemums, hence the name. The flowers can be brewed as tea and have effects such as cooling and relieving summer heat, refreshing the mind and lowering blood pressure, with no toxic side effects, making them a fine beverage. The flower colors are gorgeous, the flowering period is long, planting is simple, management is extensive, and adaptability is strong. It can be grown in pots or in the ground, and it is very popular. 1. Plant characteristics. Asteraceae, annual herbaceous flower. Plant height 50-70 cm, leaves dark green, long elliptical, lanceolate, leaves alternate, 7 cm long and 2 cm wide. Flowers double-petaled, flowers stra
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