Late rice is in an important period of field management and fertilization. In the production of late rice, there are two seasons of late rice and single season of late rice. The growth period and nutrient demand of these two late rice varieties are different, so there is a clear difference .......

The main factors affecting electrophoretic separation:

1. Nature of biological macromolecules to be separated: The charge, molecular size and nature of the biomacromolecules to be separated will have a significant effect on electrophoresis. In general,

The la.......

With the improvement of living standards, our requirements for living environment have also improved. Home decoration is not only satisfied with the most basic requirements, but also needs to be integrated into the romantic and fashionable elements. When home improvement tiles buy a few ti.......

In the deteriorating international economic situation, how can China cope with the dilemma of economic growth slowing down and inflation risks still exist? How will the economic restructuring be realized? Since the beginning of August 2007, when the liquidity of the US and European currency .......

Due to the improper addition, methods and methods, some side effects are prone to occur. For example, continuous use makes the pathogens resistant, and the residual antibiotics in livestock and poultry products cause harm to human health. The addition of antibiotics to feed can not only pre.......

At the age of 72, I was supposed to be at home for the age of the whole year. The old man Zhou Jiaxuan, who lives in the front of the road, is retiring, and still struggles to find the first line of invent.......