Carp is tender and delicious, rich in essential amino acids, and it is not only a food on .......
Zinc and sulfur are the trace elements necessary for the growth and breeding of livestock .......
In recent years, with the growing area of ​​bitter gourd cultivation. The oc.......
In recent years, with the growing area of ​​bitter gourd cultivation. The oc.......
First, the plant
B.President-carnot
Second, the material category
.......
1. Prepare your homework
Agricultural mechanized production requires careful organ.......
Before rotating the tillage operation, the arrangement of the rotary knife is an important.......
1 In th.......
Nowadays, the quality of rotary-cultivation machinery on the market is uneven, counterfeit.......
The technology provided by the Maonan Sangao High Breeding Breeding Base advances the emer.......
1. Causes of poor standing or floating seedlings: The seedling seedbed is too watery or to.......