several heads Learn more about several heads
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Several causes and prevention of floating head of fish
The "floating head" of fish is a common phenomenon in aquaculture production, and it is also an important sign to judge whether fish get sick or not and the change of water quality. However, many farmers do not understand the cause after discovering the "floating head" of pond fish, and drug administration only based on "experience" is often ineffective and even lead to a large number of deaths. In fact, the floating head of fish can be caused by a variety of factors. According to the cause, "floating head" can be divided into the following three types. The anoxic floating head is due to the low content of dissolved oxygen in the water and the farmed fish swim to a relatively high surface.
2019-01-16 -
At the head of the latest good luck, the old plant sprouted several times.
Lucky luck is not sure how many times it can send it, mainly according to its growing environment. For example, in order for it to germinate, it needs proper light and temperature, and reasonable application of water and fertilizer. Every spring, when its buds have about 7-8 leaves,
2020-11-10 The latest good luck head old plant hair several times bud -
The old plant sprouted several times at the head of Hongyun.
The old plant sprouted several times at the head of Hongyun.
2020-10-08 -
The big head orchid blossoms several times a year
Big-headed orchid, also known as Zhu Dinghong, is a common flowering plant in life. It is deeply loved by flower friends because of its good appearance and bright colors. How many times a year does it bloom? How many times a year does the orchid blossom? Magnolia usually blossoms once a year.
2020-11-09 Big head orchid one year bloom several times flower big head also known as -
At the head of good luck, the seedlings bloomed for several years.
The good luck of market-oriented aquaculture takes only a few months from potting to flowering. The family maintenance time is not necessarily, a few months to several years is possible, it has something to do with the maintenance conditions. Usually give it enough light, dark weather can supplement the lighting, and in the first planting to ensure that the heart is wet.
2018-08-20 -
The multi-headed chrysanthemum blossoms in several months.
Multi-headed chrysanthemum, also known as multiple chrysanthemum, is a perennial herbaceous flower of Compositae, and it is one of the four traditional famous flowers in China. When will it blossom? How should I raise it? In which month does the chrysanthemum blossom? The flowering period of multi-headed chrysanthemum varies from variety to variety. For example, the flowering time of early chrysanthemum is in the middle of September.
2020-11-08 Many chrysanthemum a few months flowering many again called many Benju is -
Integrated control technology of fish floating head
From June to October every year, the temperature is high and the weather is muggy. If the fish stocking quantity is too large and the water quality is bad, it is easy to cause anoxia floating head, or even suffocate to death. In severe cases, 1-2 hours can cause all the pond fish to die. Therefore, correctly analyzing the causes of fish floating head and identifying the omen and severity of fish floating head are of great significance to strengthen daily management and rescue Fantang in time. (1) the reasons for the floating head of fish. There are mainly the following aspects: (1) Blind excessive feeding and fertilization, resulting in excessive fertilizer of water quality, mass reproduction of plankton, and organic.
2019-01-15 -
Several situations of floating head of fish and their countermeasures
Several situations of floating head of fish and their countermeasures
2018-09-08 -
Management technology of winter jujube in greenhouse for several years
Winter jujube is a kind of sweet fruit that many people like to eat, and many people will choose a big sweet one when buying winter jujube. at the same time, winter jujube is a high-quality late-ripening fresh food variety in northern Shandong Province. It is called winter jujube because of its late maturity. It is said that the nutritional value of winter jujube is also very good.
2020-11-08 Winter jujube several years hanging fruit greenhouse management technology winter jujube yes -
The latest number of Panax notoginseng is better or less?
The classification or grade of Panax notoginseng is divided according to the number of heads, and the number of heads is based on 500 grams. Several complete and independent Panax notoginseng means that there are several notoginseng. For example, 10 Panax notoginseng refers to 10 Panax notoginseng with 1 jin, and 20 Panax notoginseng refers to 20 Panax notoginseng with 1 jin.
2020-11-10 The latest Panax notoginseng head count how good or less good classification -
Meat cone light bulb how to maintain the best when it blossoms for several years
The meat cone light bulb is a plant of the genus Amygdalaceae. The surface of the plant is bright green and translucent, and it will blossom as long as the environment is right. How long does the meat cone light bulb bloom? the dormant period from May to September is the dormant period of the meat cone flower. After the dormancy period, the flower begins to grow and then blossoms, almost at the end of September and the beginning of October.
2019-01-29 -
Tree structure and shaping and pruning techniques of jujube
Tree structure and shaping and pruning techniques of jujube 1 generally speaking, there are 3 kinds of branches and 2 kinds of buds in jujube trees. The branches are jujube head (developmental branch), jujube strand (fruiting mother branch) and jujube hanging (fruiting branch) (figure 1). The bud is divided into main buds.
2018-05-27 -
Planting time and method (several months) High-yield cultivation techniques of Cottonhead
Seed selection: asexual reproduction of the genus Scutellaria, which can be directly planted as seeds after harvest, and is generally planted by semi-horizontal method. Soil: choose sandy soil with good drainage. After planting a piece of land for a year, you need to take turns with other vegetables that are not spicy. Land preparation:
2020-11-08 Head planting time and methods months species High yield Abstract -
Five-fillet fish head
Raw materials: silver carp head, shredded ham, shredded shiitake mushrooms, shredded bamboo shoots, shredded red pepper, shredded green pepper, spring onions, ginger, garlic, cooking wine, soy sauce, vinegar, sugar, refined salt, monosodium glutamate, pepper, sesame oil, water starch, salad oil and so on. Production: fish head to remove Gill wash clean, with a knife from the jaw cut, but do not split, showing a "hinge" of a large piece. After rinsing clean, marinate with cooking wine and refined salt, steam for about 15 minutes on the plate, decanting the soup from the plate. Heat the wok, pour in the oil, and stir-fry several kinds of shreds.
2019-01-16 -
Fruit of grafted fruit pine for several years
Pine is a common kind of saplings in daily life. After planting for a few years, it will produce fruit, which is very delicious and expensive, but it is very popular with people. How many years does the grafted fruit pine bear fruit? First, how many years will the grafted fruit pine bear fruit? Grafted Pinus elliottii can bear fruit in 12 years.
2020-11-08 Grafting fruit pine several years fruit pine yes life middle common -
A thousand chrysanthemums open several times a year
The old stem blossoms to grow a new stem, and the new stem blossoms again, so when the chrysanthemum burst, it can have many flowers, hence the name Chrysanthemum. In life, there are many people who raise a thousand chrysanthemums, and everyone expects it to blossom, so how many times a year do they bloom? A thousand heads of chrysanthemum will only meet
2020-11-09 Thousand heads chrysanthemums one year blooming several times old stem flowering growing new stem -
Causes and control methods of floating head and floodpond in fish
Causes and control methods of floating head and floodpond in fish
2018-09-07 -
Budding technique of Old Reed head of potted Orchid
When the potted orchid propagates to a large number, it will produce an old Reed head. If the old Reed head is full and full, there are usually several latent buds in the upper part that have not yet sprouted, as long as the old Reed head is peeled off from the original clump and planted for careful maintenance.
2018-07-16 -
Beware of fish flooding in summer and autumn high temperature season
The phenomenon of fish flooding often occurs in fish ponds due to negligence in management, which has caused great losses to fish farmers. In order to prevent pond fish from flooding, the symptoms, causes and control measures are briefly introduced as follows, which can be used as a reference for fish farmers. 1 symptoms of the disease pond fish floating head due to severe hypoxia, scattered throughout the pond, mouth opened and closed, calmly and directly from the surface of the air to absorb oxygen, serious slowly turn up, struggling to maintain balance, so repeated several times after the abdomen died upward. 2 dead fish species
2019-01-16 -
Secondary utilization of single Reed head of Orchid
Secondary utilization of single Reed head of Orchid
2018-04-29