same species Learn more about same species
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What kinds of edible fungi are there? What is the price and purchase method?
We all know that edible mushrooms are mushrooms, which are often eaten in our lives. In China, there are more than 350 known kinds of edible mushrooms. Few of these fungi are wild, and most of them are artificially planted. If you want to plant them artificially, you need strains. If there are no bacteria,
2020-11-09 Edible mushroom strain have what type price and purchase method -
What to catch in the management of fish species in autumn
Clear the pond. Transfer the fish to a pond that has been cleaned and sterilized for cultivation. If there are difficulties in the turnover of water sources and fishing ponds, all the fish species can be transferred out of temporary culture, then disinfect the original ponds with 75 kg ~ 100 kg quicklime per mu, and fertilize the water quality according to the conventional method, and return the fish species after the medicine disappears. Separate cultivation. Adjust the fish species according to different specifications, so that the specifications of the fish species in the same pond are the same. Large fish species have large food intake and strong food grabbing power, just like small fish species in ponds, small fish will not get enough feed.
2019-01-16 -
What should be caught by fish species management in autumn?
Clear the pond. Transfer the fish to a pond that has been cleaned and sterilized for cultivation. If there are difficulties in the turnover of water sources and fishing ponds, all the fish species can be transferred out of temporary culture, then disinfect the original ponds with 75 kg ~ 100 kg quicklime per mu, and fertilize the water quality according to the conventional method, and return the fish species after the medicine disappears. Separate cultivation. Adjust the fish species according to different specifications, so that the specifications of the fish species in the same pond are the same. Large fish species have large food intake and strong grabbing power, just like small fish species in ponds, small fish will suffer from physical decline because they do not get enough feed. Fish over 16 centimeters
2019-01-15 -
Management of fish species in autumn
㈠ cleans the pond. After entering autumn, the fish species should be transferred to the pond which has been cleared and sterilized for cultivation, so that the fish species can survive the winter safely. Where there are difficulties in the turnover of water sources and fish ponds, all the fish can be temporarily reared, disinfect the original pond with 75-100 kg of quicklime per mu, fatten the water according to the conventional method, and return the fish to the fish after the drug disappears. Separate cultivation of ㈡. It is necessary to make sure that the specifications of the fish species in the same pond are consistent. Large size fish species have large food intake and strong grabbing power. If small size fish species are put at the same time, small size fish species will cause.
2019-01-16 -
Autumn management techniques for fish species
Autumn is the peak season for fish species growth, because it is cold but warm and the water temperature is suitable. The management of fish species in autumn is the direct means to improve economic benefits. The author thinks that the management technology of fish species in autumn should pay attention to the following work. I. Clear the pond in time. After 23 months of breeding fish, the water quality will generally age, natural food will decrease, harmful substances such as hydrogen sulfide and pathogenic bacteria will increase. After autumn, fish species should be transferred to ponds that have been cleared of toxins for cultivation. Where water sources and fish ponds have difficulty in turnover, all fish species can be transferred out of temporary cultivation
2019-01-15 -
Skillful identification of high quality fish species
Look at the specifications of the fish species the specifications of the same kind of fish in the same pond should be neat and uniform, with little difference in body length and weight. On the contrary, the poor fish species with large individual gap and uneven quality often result in low overall survival rate due to predation, mixed germplasm, poor management and other reasons. Look at the body color of the fish. The body color of the fish is bright and shiny. Different species and different culture methods have different body colors. Generally speaking, the back of high-quality silver carp species should be silver-gray, the side of the body and abdomen should be silver-white. Excellent
2019-01-16 -
Pay attention to winter and spring fish
1. Pay attention to the tidiness of fish species. If the size of the fish species in the same fish pond is not neat, the ventral line is straight, the tail is thin, and the individual is thin, put into the fish cage for 30 minutes, that is, the activity is weak, slow, and some even have symptoms of illness. This kind of fish cannot enter fish pond to stock, also unfavorable long-distance transportation, can reduce stock density or transfer to fertilizer water to raise. If you are infected, you need timely treatment. 2. Pay attention to the length of fish species. When pulling nets, fish species jump violently
2019-01-16 -
How to identify high quality fish species
"half the profit is good for planting, and half the grain is good for seedlings." Strong and good quality fish species is not only an important factor to improve the survival rate of fish species, but also an important basis and guarantee to increase fish production and economic benefits. High-quality fish species should have: appropriate specifications, neat, robust and harmless, lively action, strong food grabbing power, specifically to identify high-quality fish species can be summarized as "three look and one sampling". A look: the specifications of fish species in the same pond and the same fish pond should be neat and uniform, with little difference in body length and weight, on the contrary, there is a large individual gap.
2019-01-16 -
How to identify the quality of fish species in aquaculture
Strong fish species is not only an important basis for increasing adult fish production, but also one of the main conditions to improve the survival rate of fish species. The main standards for identifying the quality of fish species are 5.
2019-02-26 -
How to distinguish high-quality fish species
A look at the specifications of fish species the specifications of the same kind of fish in the same pond should be neat and uniform, with little difference in body length and weight. On the contrary, the overall survival rate of poor fish species with large individual gap and uneven quality is often very low due to predation, mixed germplasm, poor feeding and other reasons. Second, look at the body color of fish species. The body color of fish species is bright and full of luster. Different species and different feeding methods have different body colors. Generally speaking, the back of high quality silver carp should be silver gray, the side of body and abdomen should be silver white, and the body color of high quality grass carp should be light.
2019-01-16 -
Preparation of secondary strain of volvariella volvacea
The secondary species is a strain made by transferring the primary species into the culture material with secondary species. Second-class species can be directly used for production. In general, secondary species are transferred to the same culture material for expanded culture to become productive species. Secondary species are generally packed in 750 ml mushroom bottles or plastic bags. (1) Formula 1 of culture material: 90% of rice straw, 9% of wheat bran (rice bran) and 1% of gypsum powder. The preparation method is to select golden, mildew-free dried straw, cut it into 3 centimeters long, soak in water for about 12 hours, and make it.
2019-01-16 -
To identify fish species by observing their faces and colors.
A look at the specifications of fish species the specifications of the same kind of fish in the same pond should be neat and uniform, with little difference in body length and weight. On the contrary, the overall survival rate of poor fish species with large individual gap and uneven quality is often very low due to predation, mixed germplasm, poor feeding and other reasons. Second, look at the body color of fish species. The body color of fish species is bright and full of luster. Generally speaking, the back of high-quality silver carp should be silver-gray, the side of the body and abdomen should be silver-white, and the body color of high-quality grass carp should be light golden yellow and gray-black net.
2019-01-16 -
How to distinguish between good and bad fish species
The purchase of high-quality fish species is the key to improve the survival rate, and the quality of fry can be identified according to body color, activity, sampling inspection and other indicators. Fish fry body color high-quality fish fry group body color is the same, the body is smooth and clean, do not drag mud; inferior fish fry group body color is different, commonly known as color fry, fish body drag mud. The activity stirred the water of the fry out of the whirlpool, and most of the high-quality fry swam against the current at the edge of the whirlpool, while most of the inferior fry were stirred into the whirlpool. Sample inspection to move the water surface, if you can move against the wind and against the current, pour the water.
2019-01-16 -
A new species of the genus Rhizoma (Flower) from Yunlong, China
Yunlong Chonglou, Chimonanthus (Polygonaceae), a new species of Chimonaceae (Polygonaceae), originally belonging to the broad sense Liliaceae: Aspartaceae: Polygonaceae, which has also been classified as Trilliaceae, there are about 27 species of perennial plants with roots.
2018-06-14 -
Environmental factors of orchids: light
Environmental factors of orchids: light
2018-05-04 -
How much do you know about flowers and trees of the same genus as Magnolia?
How much do you know about flowers and trees of the same genus as Magnolia? There are 90 species of flowers and trees belonging to the same genus as Magnolia, about 30 species are distributed in China, and more than 10 species are commonly cultivated. Mainly include: (1) purple magnolia. ...
2019-02-22 -
Preparation method of edible mushroom cultivation seed
Cultivated species of edible fungi are expanded from original seeds, and all original seed culture media can be used to prepare cultivated species. The preparation of the culture medium of the cultivated seed is basically the same as that of the original seed.（...
2019-02-23 -
It is fastidious to cast fish in early spring.
The quality of fish species of the same age requires the same specifications, similar body length and weight, thick back muscles, bright color, intact scales and fins, normal activity, strong traceability, Gill cover not stretched in the basin after leaving the water, the tail does not bend, beating more than, there are no scars and parasites on the body surface. Fish species disinfection some farmers do not disinfect fish seeds at all, resulting in high incidence, and the effect of drug control is not ideal. in fact, as long as we do a good job in disinfection of fish species, we can often get twice the result with half the effort in the prevention of fish diseases. Fish species
2019-01-16 -
There are ways to rejuvenate weak fish species in autumn.
Due to the hot summer climate, aging water quality and feeding management and other reasons, the physique of fish species raised by many farmers is weak. If these weak fish species are not rejuvenated in time when the autumn is high and cool, it is not conducive to the overwintering of fish species, and will greatly affect the annual output in the coming year. Therefore, it is very important to rejuvenate weak fish species in autumn. The methods of rejuvenation of weak fish species in autumn are introduced as follows: after the high temperature season of turning ponds and Qingtang in spring and summer, the general water quality is aging, the natural organisms are reduced, and the harmful bacteria are increased, which is not conducive to the fish.
2019-01-16 -
How to identify the quality of fish species
First, to see whether the specifications are uniform of the same kind of fish, those who come out of the pond with uniform specifications are generally more physically fit. Second, to see if the fish is glossy and strong, there is a layer of mucus on the body surface of the fish to protect the scales and skin from germs, so the body surface shows a certain luster. On the other hand, the body surface of sick and injured fish is lack of mucus and no luster, or some diseased fish have too much mucus and lose their luster. Third, the body color of the fish species reflects its advantages and disadvantages through the body color of the fish species. The body surfaces of high-quality fish species are respectively:
2019-01-15