How to improve the nutrition and immunity of Tenebrio. Tenebrios are miscellaneous, so long as it is a substance containing major nutrients, its shape is suitable, and it can be used as feed. At present, the use of starter to treat crop stalks, sawdust, cottonseed hulls, bagasse, etc. Livestoc.......

Urea is the nitrogen fertilizer with the highest concentration in solid nitrogen fertilizer produced in China, and its aqueous solution is neutral. In addition to the basic fertilizer used in crops, the vast majority of crops are used for top dressing. So, how can we increase the effect of.......

First, early prevention. Spring is the first period of high incidence of sheep lice, and prevention work should be done as soon as possible. We must work hard and clean the sheep house, do a good job in ventilation and light transmission, and always keep it dry and fresh. And every 7 to 10.......

First, choose "a tight, two hard, three long" mother duck. The so-called "tight" means that the feathers are close and detailed, close to the body, flexible in action, and strong in eating power; "two hard" means that the ribs are hard and the garden is keel, .......

Both look at the present and look to the future. One stroke does not allow, one day does not fall, and the ring buckles closely, playing "five battles", so that the summer grain is less than one day, and the management day is not relaxed.

Wheat production "three minu.......

(1) Ginkgo biloba leaves from September to November, when the outer seed coat is orange-yellow, or after the natural maturation falls off, the fruit is collected and piled in a damp place after harvesting. The ginkgo can also be soaked in the tank to rot the pulp. Then remove and flesh the out.......

First, when building a loach and protecting soil, it is necessary to ensure that soil moisture is suitable. In case of drought, water should be used to make soil. It can be watered 7-10 days before the harvest of the previous crop, which is beneficial to the normal maturation of autumn cro.......

Causes of corrosion of the regulating valve throttle

In the chemical production process, some corrosive media are often encountered, such as sulfuric acid, hydrochloric acid, nitric acid, caustic soda, various salt solutions and organic co.......