“Yumma No. 1” is a warm, cool, ecologically suitable area at an altitude of 1700-2200 m MORE

Derivatization reagent in gas chromatography The main functions of chemical derivatization in gas MORE

Repair the small doorway: In accordance with the "white smoke, water leakage; blue smoke, bur MORE

Maize rough dwarf disease is a maize virus disease caused by corn roughage virus. It is mainly tran MORE

Before rushing into the countryside, many farmers’ friends needed to purchase agricultural MORE

Planting peas in winter is a model that my farmer is accustomed to planting, and it is also an opti MORE

1, the pool wall crack treatment. Dig the crack deeper, widen it into "V" shape, pull ar MORE

The aquaculture self-pollution refers to the state of the water body affected by the ecological fun MORE

The main problems in breeding dairy cows When buying dairy cows, only pay attention to the price, MORE

Long-term malnutrition, especially protein (such as beans, fish meal, silkworm cocoon, blood meal, MORE

Fish virus disease, bacterial disease, nutrient metabolic disease, water pollution, etc. can cause MORE

Global Internet reporter Li Zongze reported that according to Taiwan’s “Central News MORE