In the south, breeding ducks can be grazing all year round; in the north, they need to be …
Nitrogen, phosphorus and potassium are the main nutrients in fish ponds. In the aquacultur…
Tomato and egg soup is the most color, fragrance and taste of home cooking. It is not only…
1. DL-methionine: It is an optically active compound and is classified into D type and L t…
I. Improper selection of species
The sowing of spring and weak winter varieties in…
Corn oil is rich in vitamin E, vitamin A, lecithin, corn oil, palmitic acid, stearic acid,…
Bar-headed geese are mainly distributed in the northwest and southwest of China. They fly …
"Shen Nong Ben Cao Jing" believes that the white chrysanthemum tea can "mai…
Avoid drawing sheep and saving things: Many sheep farmers plan to save things, put the str…