1, to master the season: the river raft at the peak of reproduction gonad fullness. High fertiliza......
The small gasoline engine IE4DF is widely used in rural areas for power generation, irrigation and......
The black porpoise is native to the mountainous areas of Yunnan and is a mammalian herbivore with ......
First, the source of the mission: Research on the Tackling of Scale Inhibition Technology of Mediu......
[Resources] The dragonfly originated in China and India. It is widely cultivated in various provi......
Different uses 蚯蚓 varieties In aquaculture, different aphid species should be selected......
Cow disease prevention (tuberculosis) Tuberculosis is a chronic infectious disease of people and ......
1. Sexual maturation and initial mating age Sexual maturation of females is generally between 10 an......
White peony is a dry root of peony medicinal plant, also known as peony, with the function of nouri......
The field crops are mainly topdressing nitrogenous fertilizers, and economic crops such as vegetabl......
In the case of corn leaf blight, the amount of rainfall in July is generally related to the inciden......
1. Acceptance of raw material honey: The quality of raw material honey directly affects the quality......