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Specification of cages for cage culture of Pelteobagrus fulvidraco
The specifications of the cage include the size of the mesh and the length, width and height of the cage. For the cage of Pelteobagrus fulvidraco culture, the box should not be too large, it belongs to small cage. The size of the mesh depends on the size of the fish. 1. Matching cages with different specifications
2020-11-08 Cage aquaculture Pelteobagrus fulvidraco specification -
Planting technique of Golden Sun Apricot
Row spacing. The golden sun tree is moderate in potential and can be closely planted properly. It is suggested that the planting branches in the field should be 3 m x 5 m, 44 plants per 667 square meters, or 3 meters x 4 meters, 55 plants per 667 square meters. In hilly and mountainous areas, it is appropriate to 2 meters x 4 meters, 83 plants per 667 square meters, or 3 meters x 4 meters. The row spacing of branches planted in the protected field was 1 m x 2 m, 330 plants per 667 m 2, or 0.8 m x 2 m, 416 plants per 667 m 2. The self-flowering seed setting rate of Golden Sun is low, and cross-flower is given.
2019-01-16 -
What should be paid attention to in fruit mulberry planting?
Prepare to plant fruit mulberry, what should be paid attention to in fruit mulberry planting? The row spacing of general fruit mulberry garden is 1.0m × 2.0m, and that of rapid dense planting garden or greenhouse is 0.4m × 0.6m × 1.3m 1.5m. Shanguo 408, Xinhongbao or Shaansang 404 with upright branches and compact tree shape should be planted with higher planting density; the branches are oblique and open.
2018-07-19 -
What are the common diseases of hairy crabs? How to prevent and cure?
Hairy crab is a kind of economic crab, also known as river crab, hairy crab, clear water crab, which is a famous delicacy in China for a long time. In recent years, the culture model of high density, high input and high output has greatly promoted the enthusiasm and economic benefits of hairy crab farmers. Hairy crabs
2020-11-11 Hairy crabs common diseases what how prevention and control hairy crabs -
What is the reason why the leaves of sweet-scented osmanthus turn yellow? what is the price of a tree?
Sweet-scented osmanthus in August, sweet-scented osmanthus blossoms everywhere, home-grown sweet-scented osmanthus fengshui. Sweet-scented osmanthus is a kind of plant with many uses. It is evergreen all the year round with pleasant fragrance. But sweet-scented osmanthus also often encounter a lot of problems, let's go to see what problems there are. What is the reason for the yellowing of sweet osmanthus leaves? the soil is too dry and not watered in time.
2019-01-27 -
Technology of culturing mandarin fish in secondary cage
1. Net cage structure and setting. 1. First-class net cage (breeding box). Made of non-knot net, mesh 0.5-1.0 cm, specification 10 m 1.3 m 1.5 m, quantity 3. 2. Secondary cage (adult fish box). Mesh 1.5-2 cm, 3 small size cages, specification 2 m 2 m 1.8 m; often
2020-11-08 Utilization second class cage culture mandarin fish technology one -
Spruce snow blight
[distribution and harm] Foreign countries are distributed in North America, Northern Europe and Central Asia, harming European spruce (Piceaabies), white spruce (P.glauca), black spruce (P.mariana) and so on. It is distributed in Tianshan Mountain, Altai Mountain, Western Junggar Mountain and Kunqu Mountain in China. Damage to spruce (P.schrenkiana), Siberian spruce (P.obovata), Qinghai spruce (P.crassifolia) and Sichuan spruce (P.balfouria7)
2019-01-16 -
High-yielding cultivation techniques of Golden Pear in Junan County
The high-yield cultivation technology of golden pear in Junan county, golden pear has strong growth, open posture, strong growth potential, low sprouting rate, weak branching ability, easy to form short fruit branches and good yield. The young trees can bear some fruit in the year of planting, 2.
2018-06-17 -
Cultivation techniques of Crispy Red Plum
The cultivation of crisp red plum needs to consider the planting density, and the structure of 3 m 2 m, 5 m 3 m or 4 m 3 m can be selected. The seed setting rate of self-pollination is higher, the configuration is different, and the varieties can also be cultivated alone. The fruit of the flower-shaped fruit trees is mainly cultivated, and the fruit powder is retained as far as possible during harvest.
2020-11-09 Crispy red plum cultivation techniques cultivation crispy red plum need need -
Osmanthus fragrans: planting techniques of Osmanthus fragrans
Osmanthus fragrans: planting techniques of Osmanthus fragrans
2018-09-24 -
High-yield cultivation techniques of Agaricus bisporus in bed frame
In the past few years, the author has been engaged in the exploration of bed-frame high-yield cultivation techniques in Pleurotus ostreatus room, and some successful experiences have been obtained. Now the relevant technologies are summarized as follows for peer reference. 1 the mushroom house and bed frame structure mushroom house is 19.6 m long from east to west, 9 m wide from north to south, 2.5 m high from front and rear wall and 3.5 m high from gable. The wall is bricked with lime. Put cement on the outside; wipe it with lime mud on the inside, then brush it with lime mud. There are 4 25cm × 20cm ventilation windows up and down the front and rear wall facing the aisle, and the first ventilation window is 20cm from the ground. Front
2019-01-16 -
How is the typhoon classified?
How is the typhoon classified?
2018-07-04 -
Design idea of Wantou Pig Farm and Pig herd structure
Design idea of Wantou Pig Farm and Pig herd structure
2019-02-20 -
What problems should be paid attention to in the cultivation of walnut trees?
What problems should be paid attention to in the cultivation of walnut trees? In the cultivation of walnut trees, we should pay attention to the following problems: walnuts are widely distributed in China, ranging from southern Liaoning in the north to northern Fujian in the south, Shandong and Zhejiang in the east, Qinghai, * and Sichuan in the west. The elevation can be normal in the case of 500m-2500m.
2018-07-19 -
[expert interpretation] morphological characteristics and control methods of chrysanthemum downy mildew
![[expert interpretation] morphological characteristics and control methods of chrysanthemum downy mildew](https://www.mysheen.com/pic/20190407/cf2272fb8be02d7bbbed745b7fa14936.jpg)
Downy mildew of chrysanthemum is one of the main diseases of chrysanthemum, which often occurs in the mountain areas with average temperature of 16.4 ℃-19.0 ℃, annual rainfall of about 1500mm and low temperature and heavy rain in spring. So what are the morphological characteristics and control methods of chrysanthemum downy mildew? Let's follow the forestry experts to understand these problems.
2019-04-07 -
[expert interpretation] morphological characteristics and control methods of chrysanthemum downy mildew
Downy mildew of chrysanthemum is one of the main diseases of chrysanthemum, which often occurs in the mountain areas with average temperature of 16.4 ℃-19.0 ℃, annual rainfall of about 1500mm and low temperature and heavy rain in spring. So what are the morphological characteristics and control methods of chrysanthemum downy mildew? Next, let's follow.
2020-11-09 [ expert interpretation ] chrysanthemum downy mildew disease morphological characteristics and -
Partridge breeding technique
Partridge breeding technique
2018-07-07 -
Key points of cultivation techniques of super-early red peach
1. Tree shape and density: open field cultivation can adopt three main branches happy shape or free spindle shape, suitable density 3 m × 4 m or 2 m × 4 m, greenhouse cultivation tree shape can adopt trunk free shape or inverted "human" shape, suitable density 2 m × 1 m. 2. Control the amount of fruit retained: the fruit setting rate of this variety is high, and fruit thinning must be carried out. Fruit thinning begins 10-15 days after flowering, leaving 3-4 fruits on long fruit branches and 1 fruit on short fruit branches, which is generally controlled at 12000-150 per 667m2.
2019-01-16 -
Beautiful scenery tip rust of spruce
Beautiful scenery tip rust is a newly discovered disease on Qinghai spruce, which is mainly distributed in the spruce forest at an altitude of 2600-2800m in the eastern section of the northern slope of the Qilian Mountains in western Gansu. It is second only to Qinghai spruce leaf rust, and the onset period is about one month earlier than Qinghai spruce leaf rust. The diseased buds of symptomatic spruce germinated 10-15 days earlier than those of healthy buds. At the beginning of June, the diseased buds expanded into a conical shape, showing peach red, and the surface was densely punctuated, which was called the diseased spore apparatus. The new leaves on the tender shoots are deformed
2019-01-16 -
How to design the sow pen is the most reasonable? the size of the sow positioning bar is illustrated by the picture.
According to the feeding area of 2.5m ²sow, if the feeding quantity is less than 200, one enclosure can be set up, and 200 sows are one enclosure unit, which is the sow yard of 500m ². The active area of sows is 3m ², the length and width are 2m and 1.5m respectively, and the outdoor activity area is
2020-11-08 Mother pigsty how design most reasonable sow positioning pen