First, early pregnancy. During this period, the embryos did not gain much weight and were …
(1) Strong appetite is the most reliable feature of cattle health. Under normal circumstan…
How to choose a plastic ball valve
The control of the corrosion of groundwater by well pipes mainly starts from two aspects. …
A hazardous feature:
The larvae are likely to feed on the leaf leaves, leaving onl…
Often say "detoxification," but more and more food additives, high-fat foods, pe…
From October gestation to fall to ground, to toothbrushing, toddl…
After the sprayer is deactivated, it is necessary to first clean the liquid barrels, hoses…
1. Reasonable irrigation: Pay attention to shallow moisture. If the irrigation is too deep…