The quality of the breeding sheep directly affects the quality of the breeding offspring. In order to continuously improve the flock's physique and productivity, we must carefully select sheep. Among them, the rams have the greatest impact on the entire flock. Therefore, when selecting the.......

Heilongjiang Province is the major potato production province in China. The annual potato planting area is about 267,000 hm2, the average yield is 19.5t/hm2, and the total output is 5.2 million tons. In general, the harvest time of fresh potatoes in this province is mainly concentrated in the .......

Fishes are hypothermic animals with low water temperatures in winter, fish in hibernation, low activity, little foraging, and fish weight loss. After the spring, as the temperature rises, fish gradually start to feed. Grab this favorable opportunity to fertilize the adult fish, let it eat .......

Rehmannia is a perennial herb of the family Scrophulariaceae with a rhizome of yellow, lavender flowers, and oblong leaves with wrinkles. Medicinal herbs and rehmannia. There is the effect of heat and fluid in the habitat, and there are nourishing yin and blood in the rehmannia.
Dihuang s.......

Due to late planting, the accumulated temperature needed for wheat growth and development is insufficient, and the seedlings are not well developed. Not only the number of panicles is reduced, but also the number of grains per ear and grain weight are affected to varying degrees. Late sowing o.......

The key to the installation of centrifugal pumps is to determine the installation height of the pumps. This height refers to the vertical distance from the source water surface to the centerline of the pump impeller. It must not be confused with the allowable suction height. The vacuum height .......

First, clear water canned strawberry
1. The raw material selection is selected from 8 to 90% of mature, large, strong flavor, no odor, fresh red strawberry or reddish strawberry on the surface. Excluding rot, unsatisfied strawberry fruit that has a pest or disease, a low or high maturity........