After the end of winter irrigation, the water pump used for one year will be put into stock. It is necessary to thoroughly overhaul and maintain the water pump in winter season. After the pump is deactivated, all the water in the pump and the water pipe should be drained, and the external mud shou
Release date: 2006-11-29 Germany and the United States have developed plastics that can be deformed twice with increasing temperature. A German-American research team has developed a “three-type plastic†– that is, the shape can be changed twice by temperature control. The G
Edible fungus worms are also called bacillary worms, fungal spiders, and mushroom worms, and they are harmful to many kinds of edible fungi. Mushroom damage is caused at the beginning of the sowing of edible fungi. The hyphae of the inoculated block are first bitten, and often no mycelium germinat
There are two types of threshers: maneuvering and manpower. No matter which type of thresher, the main problems are as follows: 1. Unsuccessful threshing: mainly due to uneven feeding amount, more grain moisture, large threshing clearance, or low drum speed. 2. Grain crushing: mainly due to too
(1) Fry seedlings The newly hatched fingerlings are soaked in the wall or in the fish's nest. They do not eat, and they rely on the absorption of the yolk of the abdomen as a nutrient. After 3-4 days, the fry began to swim freely and feed. At this time, live rotifers such as rotifers, parameciu
During winter pepper breeding, it is often attacked by a sudden cold current, the temperature suddenly decreases, and the seedlings are vulnerable to freezing. If the temperature is slowly reduced, it is not easy to freeze and freeze. If the temperature is not too low, but the low temperature dura
Release date: 2006-11-30 It can simulate the simulation of 251 diseases for the first time. On the 28th, a magical scene appeared in Tongji Hospital affiliated to Tongji University in Shanghai: the medical college students practicing injection and infusion extracted a tube of bright red blood f
The nutritional value of silkworm sand is very high, crude protein content is 15.4%, second only to bran, higher than rice bran and grass, is a very good feed for livestock and poultry. Feeding livestock and poultry with silkworm sand often receives good results. 1. Silkworm sand feeding pigs: It
[Other middle names] Eight-petal chrysanthemum, cosmos, gerbera, autumn English, autumn cherry, broom plum, marigold ã€Genus】 Asteraceae autumn genus ã€Place of origin】 Mexico ã€Family characteristics】 Cosmos is an annual herb. Plant height 120 to 150 cm. Achenes
The nutritional value of silkworm sand is very high, crude protein content is 15.4%, second only to bran, higher than rice bran and grass, is a very good feed for livestock and poultry. Feeding livestock and poultry with silkworm sand often receives good results. First, silkworm sand feeding pigs
[Pathogen name] Cuscuta chinensis Lamb. [Host plant] Potatoes, tomatoes, eggplants, peppers, green onions, soybeans, and other crops. [Disease diagnosis] Occurs in sporadic or nested fields. Cuscuta twigs the stem of the plant with a cane, spirals around, grows in the contact part with the potato
1. Rotary cultivator overload. Cause: Excessive ploughing, heavy soil, and excessive hardness. Exclusion: It can reduce deep plowing and reduce the unit forward speed and coulter speed. 2. The rotavator leaps when working. Cause: The soil is hard or the blade is not installed correctly. Exclusion