According to years of experience in the maintenance of gasoline engines, the failure of the gasoline engine can be determined by looking at the color of the surface of the spark plug porcelain core. 1. The white core of the porcelain core works normally. 2, the surface of the porcelain core is sl ---MORE---
Tenebrio also called breadworms, intended to be walking insects, is a Coleoptera. Tenebrio has the advantages of strong disease resistance, resistance to crude feeding, rapid growth and development, and strong fertility. It is rich in protein, fat and carbohydrates. And easy to raise, with inexpen ---MORE---
Using intensive techniques to cultivate edible mushrooms such as oyster mushrooms, mushrooms, and mushrooms can achieve high yield, high efficiency, high quality, and low consumption of edible fungi. First, the intensification of the plant. Mushroom cultivation has a variety of cultivation methods ---MORE---
Straw returning to the field is an effective way to deal with the problem of straw, but the straw can not be broken down in time, which is the biggest problem hindering the promotion of this technology. What actually affects the decomposition of returned straw? (1) C/N: After the straw with a lar ---MORE---
We begin with the three major elements of fruit tree disease to explore the prevention and treatment of fruit tree fungal diseases, it is easy to find that there are a large number of pathogenic pathogens in nature, we can not exterminate them. Most of the current prevention and control methods ar ---MORE---
The emergence of reproductive disorders in dairy cows should be scientifically analyzed in a timely manner. For example, if the cow's estrus interval is less than 17 days or more than 24 days, the age is past 14 months without estrus or after 60 days without estrus, the insemination three times ---MORE---
Measures Embryo transplantation technology is an effective way to speed up the reproduction rate of elite breeders, but due to inadequate preparation of work and carelessness in the process of operation, it may lead to low utilization rate and difficulty in fetuses after oviposition of donor sheep ---MORE---