Some chicken farmers will always find themselves in the process of breeding and will bothe…
The reporter learned from the Sh…
When an insecticide is used, the effect is often very good, but as the dos…
Angus easily with precocious, 12 months of age of sexual maturity, but often at the beginn…
With the improvement of agricultural production technology, plant growth regulators have be…
1. Superphosphate cannot be mixed with alkaline fertilizers such as grass ash, lime nitrog…