upper collection Learn more about upper collection
-
Cocoon collection and sale of silkworm
1. The suitable time for cocoon collection: after the cocooning of mature silkworm, molting and pupation, with the development of pupa, the skin becomes hard and the skin color becomes darker, when the skin color changes to yellow, it is the suitable time for cocoon collection. The spring silkworm period is 6-7 days after the upper cluster. The summer and autumn silkworm period is 5-6 days after the upper cluster, and the late autumn silkworm period is 7-8 days after the upper cluster. The cocoon is picked too early, the silkworm has not yet pupated, the hairy foot cocoon is not easy to be evenly baked during cocoon drying, the cocoon quality is reduced, and the hairy foot cocoon is easy to seep the dirt out of the cocoon layer during cocoon cooking, which makes the color of raw silk worse.
2019-01-16 -
Hardwood cutting technique of Robinia pseudoacacia
1. Collection and storage of seed strips at the end of November, excellent clone seed strips of the same year were collected from the ear-picking nursery, or the stems of current-year seedlings used for cutting and afforestation were collected, the short spikes of 18-20cm were cut, and at least 2 buds were left per cuttage. The distance between the upper cut and the upper bud is 1. 0-1.5cm, and the lower cut is cut into a single Mallet shape. After 50 cuttings are cut, put them in a cool outdoor place and bury them with clean fine river sand (water content 60%). A layer of cuttings, covered with a layer of sand, try to make each stick see sand. The thickness of sand cover on each layer of cuttings is 3-5cm, but
2019-01-15 -
Small seal and great learning
Seal, as an art category with national historical and cultural characteristics, is like a wonderful flower, which continuously exudes a unique fragrance in the broad and profound Chinese art garden, attracting people to enter this inch world. The art of seals.
2018-09-13 -
Daily update: 100 common flowers cutting propagation collection--roses
Click on the blue button in the upper right corner of the "attention", get flower potted knowledge every day Rose as a symbol of love is one of the flower varieties that many girls like, every Valentine's Day flower shop roses are often snapped up, love...
2018-09-14 -
Bonsai teaching: the high-pressure breeding method of Luohansong is worth collecting
It has a strong arrogant spirit, as well as Chinese culture "longevity", "wealth auspicious" and other implications, the pursuit of high-end garden landscaping owners often like to plant one or two Pinus tabulaeformis, in order to create their own "garden style" to add God's pen. ...
2018-05-15 -
A complete collection of frogs
A complete collection of frogs
2018-09-08 -
Feeding and management techniques of silkworm
Feeding and management techniques of silkworm
2018-09-08 -
Production measures of beeswax
According to the ability of bees to secrete beeswax, 20,000 bees can secrete about 1 kilogram of beeswax in their lifetime. A strong group can secrete 5-7.5 kg of beeswax in spring and summer. The output of beeswax can be increased by taking appropriate measures. 1. Making more new spleen and old nest spleen is the main raw material for making beeswax. More elimination of old spleen, more production of new spleen, resulting in a new spleen can produce 50-70 grams of wax. 30% of the old spleen should be eliminated every year. 2. Widen the bee path in the big flow honey period, widen the bee path between the honey spleen, bee
2019-01-15 -
A collection of pictures of partridge species
A collection of pictures of partridge species
2018-07-07 -
Tortoise back bamboo breeding tips to learn these three tips the leaves are big and bright
Sowing and reproduction: first collect the seeds of Phyllostachys pubescens, and then sow them on the soil, about one every 2 to 3 centimeters. It sprouted a month later. Cuttage propagation: first, select lateral branches, keep only the upper leaflets, and insert them into the soil, after which, about 30.
2018-06-04 -
Grafting time and method of Citrus
Grafting time and method of Citrus
2020-01-16 -
The latest grafting time and method of Citrus
Citrus is a common fruit in our daily life, which has a wide planting area in our country. When growing oranges, the method of citrus reproduction is very important. In general, grafting is the main method of citrus propagation. So, oranges.
2020-11-10 The latest citrus grafting time and method is -
What kinds of mandarin fish do you have? A collection of pictures is attached
Mandarin fish, also known as Mandarin Fish, chrysanthemum fish, flower fish, etc., is a very ferocious carnivorous fish, widely distributed in China, basically in lakes and rivers. The meat of mandarin fish is delicate, delicious and without spines, so it is suitable for the elderly and children to eat.
2020-11-11 Mandarin fish have which species attached picture Daquan mandarin fish and -
The key to rearing silkworm in summer
At present, in the rural areas of our country, there are many sericulturists, because from the development situation of our country at the present stage, the demand for silk is still very large, not only in our country, but also in foreign countries. But in the process of sericulture, we should pay attention to every season.
2020-11-08 Summer sericulture silkworm the key at present in China rural areas -
Breeding techniques of cultured forest frog
The reproduction technology of forest frog is a main link in production, and the level of reproduction technology is directly related to the benefit of artificial breeding forest frog. The breeding technology of closed ditch frog mainly includes seed selection, spawning, hatching and feeding and so on. Egg breeding and frog breeding are the main production of frogs at present.
2020-11-08 Breeding forest frog breeding technology -
How to collect soil samples for testing by farmers
The subsidy project of soil testing formula fertilization has entered the stage of popularizing formula fertilizer according to regional large formula since it was launched in 2005. On the other hand, it is necessary to implement the soil testing formula technology in farmland orchards, make "small adjustments" according to local conditions, accurately collect soil samples and accumulate soil "physical examination".
2016-03-20 Farmers how self-picking soil testing samples soil testing formula -
Daily update: a complete collection of cutting propagation of 100 common flowers-triangular plum
Click the blue button "attention" in the upper right corner to get the knowledge of flower potted plants every day. Triangle plum likes warm and humid climate, not cold-resistant, like sufficient light; it is the city flower of Xiamen, it has large bracts, bright colors and long flowering period.
2018-09-14 -
Culture technique of Misgurnus anguillicaudatus
Culture technique of Misgurnus anguillicaudatus
2018-07-04 -
Softwood cutting technique in summer
Softwood cutting technique in summer
2018-07-10 -
Sagittarius sagittarius
Before seed collection, select high-yield fields with pure varieties, strong growth, light diseases and insect pests, and few flowering plants. Harvest when the upper part of the ground is completely dead. After harvest, the corms conforming to the characteristics of the variety, larger, heavier and more curved terminal buds are selected as seeds. Because the terminal bud is bent, it is beneficial to accumulate nutrients and is not easy to germinate. The terminal buds of the selected seed balls should be broken off, and a part of the upper part of the bulb should be taken slightly, that is, the terminal buds of the arrowhead should be poured, soaked in 50% carbendazim 600 times solution for disinfection for 20-25 minutes, and then taken out.
2019-01-15