5 species Learn more about 5 species
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Fish species are released in autumn to ensure survival in autumn.
Strengthening the cultivation of fish species in autumn is the key to improve the survival rate of overwintering fish species. Improve the environment before the release of fish species, release half of the original pond water, and then add new water. 150 kg fermented manure was applied per mu pond, once every 9 days, for a total of 3-5 times. Appropriate topdressing of chemical fertilizers based on nitrogen and phosphorus, generally 1.5-2.5 kg of urea and 3-5 kg of superphosphate per mu of pond, about once every 7 days. Add fresh water after each fertilization to keep the transparency of the pool water at 20-30 cm. Use quicklime 10 per mu of water every half a month
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 -
Fish species released in autumn and cultivated in autumn to keep them alive
Strengthening the cultivation of fish species in autumn is the key to improve the survival rate of overwintering fish species. Improve the environment before the release of fish species, release half of the original pond water, and then add new water. 150 kg fermented manure was applied per mu pond, once every 9 days, for a total of 3-5 times. Appropriate topdressing of chemical fertilizers based on nitrogen and phosphorus, generally 1.5-2.5 kg of urea and 3-5 kg of superphosphate per mu of pond, about once every 7 days. Add fresh water after each fertilization to keep the transparency of the pool water at 20-30 cm. Use 10-15 kg of quicklime per mu of water every half a month
2019-01-11 -
Introduction of rhododendron species-- sheep hesitant
It belongs to the subgenus Rhododendron. Deciduous shrubs, 0.5-2 m tall. The branchlets are soft and thin. Pilose and bristles. The leaves are papery, light green, long elliptic-lanceolate, 5-12 cm long and 2-4.5 cm wide, apex obtuse, with a convex tip, base cuneate, margin ciliate, petiole, leaf surface, and leaf back all pilose. Terminal raceme umbels with 5-9 flowers, flowering in early May, about 10 days later than Yingshanhong, flowering first and then leaves or flowers and leaves together, Corolla broadly bell-shaped, caliber 5-6 cm, golden to orange
2019-01-15 -
The cost and output profit of raising mackerel in ponds
The cost and output profit of raising mackerel in ponds
2018-09-08 -
Bonsai cultivation of leaf flower cultivation techniques
The appearance of the leaf flower is not amazing and goes unnoticed. The three flowers are often clustered in three larger bracts, and the pedicels are connate with the veins of the medicine tablets. The bracts are time-shaped, with bright red, orange, purplish red, milky white, etc., similar to gorgeous petals, hence the name leaf flower, triangular flower. In winter and spring, colorful bracts unfold
2019-02-10 -
How many corn seeds do you need per mu of land? What are the high-yielding varieties? How much fertilizer do you need?
Maize seed is a propagule with the ability to grow into an adult plant, which is formed by pollination and fertilization of ovules. Do you know how many corn seeds are needed for one acre of land? Are there any high-yielding varieties? How much fertilizer do you need? From Uncle Li, a corn grower in Xinyang, Henan Province
2020-11-09 how much corn and seeds are needed for one mu of land? -
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 -
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 -
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 cultivate the seedlings of herring in pond
Herring is a kind of green fish, which is mainly distributed in the plain area south of the Yangtze River and rare to the north of the Yangtze River. it is an important fishery resource and the main culture object in lakes and ponds in the middle and lower reaches of the Yangtze River and along the Yangtze River. for freshwater culture in China
2020-11-08 Herring pond fry how to cultivate herring yes a kind of color -
How to transport fish species safely in spring
The beginning of spring is the season for the release of fish fry and fry, and the remote transportation of fry and fry has become an important link in shallow water aquaculture production. Transportation should be safe and efficient, and the survival rate of transportation should be ensured and improved. The fish species should be selected with thick flesh on the back and tail, strong body, bright color, intact scales and fins, no scars and parasites on the body surface, active swimming in the cage, strong reverse water, concentrated in one place of the box, head down, tail up to grab water. Plastic bags for transporting seedlings
2019-01-16 -
Technical points of safe overwintering of fish species to avoid economic loss
Technical points of safe overwintering of fish species to avoid economic loss
2018-07-14 -
What kinds of yellow cicadas are there?
Yellow cicada belongs to the genus Apocynaceae. There are 15 species of this genus, which are distributed in tropical America. The common species and cultivated species introduced into China are yellow cicada, soft branch yellow cicada, double soft branch yellow cicada, small leaf soft branch yellow cicada, white cicada, purple cicada. Yellow cicada is evergreen shrub, leaves 3-5 verticillate, ovate-lanceolate, entire.
2019-01-06 -
What are the common ornamental species of the genus Buckeye?
What are the common ornamental species of the genus Buckeye? Aesculus is a deciduous tree and sparse shrub. Leaves opposite, palmately compound consisting of 3-9 (usually 5-7) leaflets, with longer petioles.
2018-05-27 -
Causes of overwintering death of fish species and its management measures
Causes of overwintering death of fish species and its management measures
2019-12-18 -
Measures to strengthen autumn breeding of fish species
Autumn water temperature is generally between 20~30℃, it is a good time for fish growth, if autumn does not grasp the breeding of fat fish species, to the cold winter, most fish species will die due to thin physique, the average survival rate is often less than 60%. Therefore, strengthening the autumn cultivation of fish species is a top priority for farmers. The specific cultivation measures are: disinfecting and clearing the pond, transferring to the fish pond where the fish species are cultivated in Xintang. After several months of cultivation in spring and summer, the water quality is gradually aging, and the dissolved oxygen and food organisms are reduced.
2019-01-16 -
There are more than 500 species of alien invasive plants in China.
In recent years, tropical micro-chamomile, southern Phoenix blue, southwest Eupatorium adenophorum, these exotic invasive plants have caused serious losses to China's ecosystem and economic development. The latest survey shows that there are more than 500 species of alien invasive plants in China. Chinese department
2016-03-20 China exotic invasive plant has more than 500 species tropical micro -
What are the species of bamboo rats?
What are the species of bamboo rats?
2018-07-04 -
Cheap and easy to raise 10 most succulent plants are recommended
At present, there are more and more succulent varieties in the market, and their prices are also high and low, but we should never divide them into three, six or nine grades according to their different prices. Succulent is a lovely creature, regardless of high or low, the key.
2018-05-22