bromine Learn more about bromine
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Is deltamethrin toxic to people?
Deltamethrin is one of the most virulent pyrethroids insecticides, which has the effects of contact and stomach toxicity, rapid contact killing, strong knockdown power, no fumigation and internal absorption, and has repellent effect on some pests at high concentration. So is deltamethrin toxic to people?
2020-11-08 Bromine permethrin to people toxicity big bromine yes -
How much is the current price of pigs? How to choose? What should I pay attention to?
Piglet, also known as piglet, piglet, also known as piglet, refers to pigs from birth to about 60 kg. So how much is the current price of piglets? How to choose? What should I pay attention to when raising? From Changsha pig farm know, different
2020-11-11 at present the price of young pigs is about how much how much money one head how to choose. -
The separate pen rearing technique of black porpoise
The separate pen rearing technique of black porpoise
2018-07-04 -
Mineral nutrition of pigs
It has been proved that there are more than 40 kinds of essential mineral elements in pigs, which can be divided into two categories: major elements and trace elements according to their content in pigs. Elements with a content of more than 50 mg / kg are major elements, which are mostly expressed by percentage content; elements less than 50 mg / kg are mostly represented by mg / kg. Pigs need at least 14 inorganic elements, including major elements calcium (Ca), phosphorus (P), sodium (Na), chlorine (Cl), potassium (K), sulfur (S), magnesium (Mg) and
2019-01-15 -
How to prevent perishable fish skin from rotting in cage culture
How to prevent perishable fish skin from rotting in cage culture
2019-01-16 -
Peanut planting in autumn to control diseases and insect pests
The main diseases of peanut are leaf spot and rust. The leaf spot disease should be prevented and controlled by spraying 75% chlorothalonil +70% topozine 1000~1500 times solution or 30% copper oxychloride +75% chlorothalonil 1000 times solution for 2~3 times every 10~15 days.
2020-11-08 autumn planting peanut pest control flower raw main disease have -
Planting and maintenance of heather rhododendron
Morphological characteristics: the plant is multi-branched, the crown is plump, and the plant type is compact. Leaves alternate. Inflorescences racemose umbellate, flowers terminal, usually 15 mi 20 cm in diameter, flowers.
2019-02-26 -
When will snow beans be planted?
Snow beans can be planted all the year round, and the conventional planting time is from February to April in spring, from May to June in summer, from August to October in autumn, and from October to February in winter, the soil needs to be prepared with fertilizer and water in advance, and then planted by hole sowing, weeding should be done in time after planting.
2020-11-08 Snow beans when plant abstract snow beans all the year round can -
Four Prevention of planting Chinese Chestnut during Storage
Chinese chestnut is afraid of heat, dryness, freezing and dampness. although there are many storage methods, there will be weightlessness, germination and mildew deterioration if there is a little impropriety. Corresponding measures must be taken to reduce the loss and prolong the shelf life. First, prevent mildew and corruption. Most of the moldy chestnuts are rotten.
2020-11-08 Species chestnut storage four prevention both afraid of heat afraid of dry -
Prevention and treatment of common pig gastric ulcer in large-scale pig farm
Prevention and treatment of common pig gastric ulcer in large-scale pig farm
2020-06-09 -
Prevention and treatment of tripe's dry disease
Prevention and treatment of tripe's dry disease
2018-07-06 -
Early preparation for disease prevention of autumn Chinese cabbage
As the saying goes: head-volt radish, two-volt mustard, stand autumn plant cabbage. Now it is time to plant autumn Chinese cabbage again. We should plant autumn Chinese cabbage in time to ensure high quality and high yield. Now the key points of cultivation techniques of autumn Chinese cabbage are introduced as follows: select varieties with good fertilizer and water conditions, select tall, late and medium-maturing varieties; fertilizer.
2018-09-11 -
Lack of feces and poor dry digestive function, beware of louver disease in raising cattle in winter
Lack of feces and poor dry digestive function, beware of louver disease in raising cattle in winter
2018-07-11 -
What about grape leaf worms?
Grape is one of the oldest fruit tree species in the world. Grape fossils were found in Tertiary strata, indicating that grapes were widely distributed in Europe, Asia and Greenland at that time. The taste of grapes is very delicious, in today's artificial technology
2020-11-08 Grapes leafy worms leaves worms what to do grapes yes the world -
A case of prevention and control of fish outbreak in small reservoir
In early October 2005, fulminant hemorrhagic disease occurred in farmed fish in Tuonan Reservoir of our town. Through our active treatment, the disease was basically controlled. The prevention and control situation is summarized as follows: first, the basic situation Tuonan Reservoir normal water area of 100 mu, high water season of 150 mu, an average water depth of 3 meters, the deepest up to 6 meters. Artificial culture has been carried out in the reservoir since the early 1990s, mainly conventional fish, including green shrimp, yellow catfish and so on. The water quality of the reservoir is fresh and no flow.
2019-01-15 -
Culture technique of Paralichthys olivaceus, fresh in Sea in Pond
Culture technique of Paralichthys olivaceus, fresh in Sea in Pond
2018-07-14 -
Density per mu of four major domestic fish culture
The four major domestic fish refer to grass carp, bighead carp, silver carp and herring, in which grass carp culture density per mu is about 1200, bighead carp culture density is about 50 per mu, silver carp culture density is about 300 per mu, and herring culture density is about 300 per mu. One or four masters
2020-11-08 Four everyone fish aquaculture per mu density summary four -
Control of peanut diseases and insect pests
1. Peanut virus disease uses seeds with no toxin or low toxin to cut off or reduce the initial source of infection. Non-toxic seeds can be obtained by isolation propagation. Choose a big, full seed. Popularizing a technology-plastic film mulching technology in planting areas can reduce the scourge of virus diseases.
2018-10-24 -
Comprehensive prevention and treatment of heatstroke in cattle
Heat stroke in cattle is a common disease in summer and autumn, especially in service cattle and calves. If the prevention and treatment of heat stroke in cattle is not timely, it will often cause death or seriously affect the progress of farming, which should be paid great attention to. Etiology and symptoms heatstroke in cattle is the general name of solar radiation disease and heat radiation disease. In the hot season, the head of cattle is exposed to intense sunlight, resulting in cerebral and meningeal vascular congestion and substantial brain lesions, resulting in solar disease. The barn is narrow, low, muggy and poorly ventilated; the service is too heavy and the drinking water is insufficient; spent a long time in cement or
2019-01-16 -
Grasp the key points of efficient culture of early spring soft-shelled turtle in Wudaoguan
Grasp the key points of efficient culture of early spring soft-shelled turtle in Wudaoguan
2018-07-10