Why are the fish in the wintering period dead?

First, the cause of death of fish during wintering

1. Poor environment in overwintering fish ponds and serious hypoxia caused death. The first is the aging of the pond, which has not been dredged for many years. It is supported by pigs, ducks, and ducks in Tongtou pig and duck ponds.

Land fertilization technology for garlic

Garlic has a wide range of adaptability to the soil, sandy soil, loam and nocturnal land can be, but it is better to use slightly acidic soil with rich organic matter, deep soil, and good drainage. Planting garlic on this kind of soil has a well-developed root system, returns to early morn

Rabbit fattening management

Rabbit fattening is the last link in rabbit production. Its purpose is to produce good rabbit meat and rabbit skins. The fattening of rabbits should work best after the growth and development of the skeleton is completed. The rabbit rearing and management needs to be as follows:
1. After

How to wean young rabbits?

How to raise young rabbits and improve the survival rate of young rabbits, farmers in the daily production and management of rabbits must effectively grasp the following technical feeding and management links.

First, pay attention to appropriate activities to enhance the young rabb

Rotary cultivator operation using attention points

1. Check all components before use. In particular, check whether the rotary knife is installed with the fixing bolt and universal joint lock pin. When checking the rotary cultivator, the power must be cut off. When replacing rotating parts such as blades, the tractor must be turned off. 2. Bef

Analysis of Reasons for Difficult Start of Tractor

1. The cylinder head nut is not tightened or the cylinder head gasket is damaged. When turning the crankshaft, if there is a leakage sound at the joint surface between the cylinder head and the machine body, the cylinder head nut may not be tightened, or the cylinder head gasket may be dam

These symptoms of crops are trace elements

When the crop is deficient in iron, the new leaves are first chlorotic, and the leaves and veins turn yellow from white and the leaves become smaller.

In the absence of copper in the Gramineae crop, the tip of the crop turns white, and the leaves turn yellow-gray, and the spikes do