The growth rate of the soft-shelled turtle is slow, and it usually takes 3 to 4 years to reach the commercial specifications of about 500 grams. In general conditions, the growth rate of outdoor natural turtles is: when hatched, it grows 2 cm to 3 cm long and weighs 3 g to 5 g; at the end of the fi.....

Solidago canadensis L. is a perennial herb belonging to the genus Solidago in the Asteraceae family. It was introduced into China's Yangtze River Delta region in 1935 as an ornamental plant. Because of its strong reproductive capacity, competitive ability, and various means of transmission, it .....

During the summer, the pigs are warm-blooded animals. The pigs are thick and the sweat glands are underdeveloped. Therefore, the pigs can easily fall out of heat, stagnation, and even death from heat stroke in order to resist heat. Therefore, raising pigs in summer must be stepped up to prevent hea.....

Fertilizer is one of the most important sources of crop nutrients. The timely and appropriate supply of fertilizer to crops directly affects the growth and development of crops. Due to the difference in fertilizer supply, the same crops grow in the same area and there are also differences in growth.....

1 Causes of rotten fruit (1) Insufficient light in the shed. The first is the effect of cloudy or rainy, snowy weather; followed by dust on the surface of the greenhouse film, resulting in insufficient light in the greenhouse, humidity is too high, young fruit grows in the dark air for a long time,.....

Gene chips, also known as DNA chips, DNA microarrays, and oligonucleotide arrays, refer to the use of in situ synthesis (in situ synthesis) or microprinting. The DNA probe is immobilized on the surface of the support to generate a two-dimensional DNA probe array, which is then hybridized with the l.....

The commodity sea cucumbers are all salt and dry products. The processing methods are as follows: 1 Remove the dirty: The collected fresh ginseng is cut with a knife at the back side of its tail. The length is about 1/3 of the body length. The viscera is removed and the edge is to be cut. Never cut.....