Three principles of soil testing and fertilization
Organic fertilizer combined with inorganic fertilizer. Formula fertilizers must be based on organic fertilizers. Soil organic matter is an important indicator of soil fertility. Increasing organic fertilizer can increase soil organic matter content, increase soil water retention and fertility, increase soil microbial activity, and promote utilization of chemical fertilizers. Therefore, we must adhere to a variety of forms of organic fertilizer input in order to be able to fertilize the soil and achieve sustainable agricultural development. A large number of medium and trace elements cooperate. The combination of various nutrients is an important part of formula fertilization. With the continuous increase of production, in the use of high-strength soil, we must emphasize the mutual cooperation of nitrogen, phosphorus, and potassium, and supplement the necessary trace elements, in order to obtain high yield and stable production. The combination of land use and land support balances inputs and outputs. To make the crop-soil-fertilizer form a virtuous circle of matter and energy, we must adhere to the combination of farming and farming, and balance input and output. If the soil fertility is destroyed or consumed, it means reducing the ability of agricultural reproduction. Nucleic Acid Extractor NFAST 32A This Nucleic Acid Extraction system is a biomedical instrument specially used for automatic magnetic bead method nucleic acid extraction. You only need to add the samples to be extracted to the matching kit, put the kit into the machine, and run the edited program that comes with the instrument, and a round of sample nucleic acid extraction can be completed in 10 minutes. nucleic acid extraction system,nucleic acid isolation machine,nucleic acid extraction equipment,nucleic acid device,nucleic acid extraction machine Shenzhen Uni-medica Technology Co.,Ltd , https://www.unimedicadevice.com