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What is the difference between the two rice diseases? Explained clearly in one article
In recent years, bacterial brown spot of rice has shown a trend of relatively severe occurrence in some rice areas of our province. Most farmers mistakenly treat this disease as rice blast, which both increases costs and fails to achieve good results. For this reason, the two diseases are specifically distinguished below. 1. Symptoms. The symptoms of bacterial brown spot of rice are that reddish-brown small spots first appear on the upper leaves of the rice starting from the leaf tip and leaf edge, then expand into spindle-shaped, long oval, or irregular strip-like streaks, gradually spreading to the entire leaf, causing local necrosis of the leaf, with no bacterial ooze visible
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How Are Warm-Water Fish Harvested? Key Technical Points Explained in Detail
In summer and autumn, the fish-carrying capacity of intensive culture ponds reaches saturation, and some adult fish have reached marketable size and can be harvested for market. This not only benefits fish growth and the rearing of large-size high-quality fingerlings, but also reduces the fish-carrying load of the pond. According to production practice, the following key techniques should be grasped when harvesting warm-water fish. 1. Harvesting time is generally chosen in clear, fine weather, when the air temperature is cool, before and around dawn in the latter half of the night when fish are not gasping at the surface, or in the morning when the water temperature is relatively low (the specific time is determined according to the distance from the market and @#@136@#@ time). At this time, seining to harvest fish has little impact on the pond fish, and the freshly caught fish can be supplied to market in time. In overcast, muggy weather, or when pond fish show signs of gasping at the surface or fish diseases occur, seining should not be carried out, so as to avoid causing a large number of fish deaths. Seining cannot be done in the evening; otherwise it will cause premature convection between the upper and lower water layers, accelerate the consumption of dissolved oxygen in the pond water, and cause the pond fish to gasp at the surface.
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Steamed Snakehead Fish in a Clear Broth: Recipe and Techniques Explained
Main ingredients: 1 snakehead fish (weighing 1 jin, about 600 g), 2 stalks each of lemongrass and scallion, 1 sprig of cilantro, 2 slices of ginger, 1 liang (about 40 g) of celery, 2 liang (about 80 g) each of napa cabbage and pork loin, 2 bird's eye chilies. Seasonings: 1 tbsp each of fish sauce and doubanjiang, 1 tsp of sugar, 3/4 tbsp of dark soy sauce, a pinch each of pepper, sesame oil and Shaoxing wine, the juice of 1 lime, 2 cups of water (or stock). Method: 1. Scale the snakehead fish, clean it, and along the dorsal fin
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How to Grow Brown Mushrooms for High Yield? Key Cultivation Techniques Explained
1. Cultivation season. Based on the biological characteristics of brown mushrooms, which fruit at temperatures ranging from 16°C to 32°C and begin fruiting 40 to 45 days after spawning, spring cultivation generally involves spawning in March to April with fruiting from May to July; summer cultivation involves spawning in June to July with fruiting from August to October. Each region should select the optimal cultivation season based on local climatic conditions. 2. Cultivation site. For field bed cultivation of brown mushrooms, a light-blocking, rain-proof shade structure must be built. The shed height is 2 to 2.2 m, with grass curtains or shade nets covering the roof and surrounding sides. Inside the shed, the beds are shaped into a turtle-back form, with a designed bed width of 60 to 8
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Dianthus Cultivation Methods and Care Tips Explained in Detail
1. Highlights: Dianthus is one of China's famous ornamental flowers, with a long history of cultivation, and ancient poets praised it greatly. The two great poets of the Tang Dynasty, Li Bai and Du Fu, both left famous lines praising the dianthus flower for later generations. The Poet Immortal said, "Dianthus embroidered on silk robes." The Poet Sage said, "Musk sleeps among dianthus." This shows that as early as more than 1,200 years ago in the Tang Dynasty, dianthus was already widely cultivated for people to admire. Dianthus is widely distributed in China's Northeast, North China, Northwest, and the provinces of the Yangtze River basin, and is now widely cultivated at home and abroad. Dianthus resembles bamboo in form, with dense flowers and bright colors.
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How Should Honey Be Packaged and Stored? Key Technical Points Explained
1. Packaging of honey. Honey is a weakly acidic liquid that can oxidize metals, so non-metallic containers such as vats, wooden barrels and plastic buckets should be used for packaging, and dedicated packaging containers must be thoroughly washed and dried. In areas with high honey yields, honey storage tanks can be established, and wooden barrels or water vats may also be used for storage; the barrels and vats used should be free of off-odours. Packaged honey must not fill the container completely; especially during transport, 25%-30% of the space should be left to prevent the honey from fermenting and overflowing, or from bursting the container when heated and shaken.
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Key Technical Points and Methods for Fish Polyculture Explained
In ponds where monosex tilapia and pufferfish are the main cultured species, under artificial feed feeding conditions, there are usually many freshwater shrimp, which are the best bait for the marble goby (Thai snakehead gudgeon). 50-80 marble goby fry can be stocked at the same time per mu, with a small number of artificial fish nests placed, and 20-30 kg of marble goby can be additionally harvested per mu at the same time.
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Practical Comprehensive Prevention and Treatment Techniques for Goose Cholera Explained
Goose cholera is on the rise in China, and many farmers neglect prevention and treatment, resulting in serious losses. The disease is an acute septicemic infectious disease caused by Pasteurella multocida; it occurs mostly in winter and spring, affects adult geese more than young geese, and when prevention and treatment are not timely the mortality rate is 80%-95% or more, with devastating losses being not uncommon. Damp, dark and crowded goose houses, sudden climate changes, vitamin deficiency, malnutrition, and internal and external parasitic infections can all trigger the disease. I. Epidemiology and Symptoms This disease is a common infectious disease of chickens, ducks, geese, poultry and birds.
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Key Points and Methods of Jasmine Pruning Techniques Explained
Dormant-season pruning: Carry out before spring bud break, generally pruning around Qingming Festival, with the aim of promoting a neat and sturdy first flush of branches and adjusting the branch crown. The specific pruning methods are: 1. Cut off diseased and pest-infested branches, dead branches, thin branches and weak branches. 2. Shorten one-year-old branches: cut off the tips of last year's branches, keeping 10 cm to 15 cm at the base. 3. Remove all leaves. Growing-season pruning: Carry out from after bud break at Spring Festival to before overwintering; the specific pruning methods are: 1. For blind branches (branches that do not flower), water sprouts and declining
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A brief introduction to new mulberry and silkworm varieties, explained in one article
1. Nongsang No. 12: A new mulberry variety bred by the Sericulture Research Institute of the Zhejiang Academy of Agricultural Sciences in 1984 through artificial sexual hybridization. Main traits: compact crown, many shoots, long and straight branches, thick leaf flesh, dark green leaf color, sprouting earlier than Heye Bai, fast growth, strong adaptability. Regional trial results: leaf yield per mu 1867 kg, 18.73% higher than the control Heye Bai, significantly higher than the control; cocoon shell weight per 10,000 silkworms 7 kg, 8.03% higher than the control Heye Bai, extremely significantly higher than the control; resistance to yellowing-type
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