VTM sampling kits are designed for the collection, preservation, and transport of viruses, chlamydia, mycoplasma, and ureaplasma urea. They are now widely used for sampling and transporting prior to virus detection. MandeLab's VTM kits provide a safe and convenient way to collect and transport virus samples. Nasal swab kit virus sampling tube,Used to collect samples of secretions from the throat or nasal cavity, Disposable Jiangsu iiLO Biotechnology Co., Ltd. , https://www.sjiilogene.com
How to top fertilizer
Due to the early low temperature, the release of phosphate fertilizer is generally slow, so it is appropriate to topically apply diamine in top dressing. The urea should be applied more early, according to its own target yield, determine the amount of urea, generally 15-20 kg, can be applied twice, the first time in the 8-leaf stage topdressing urea, the amount of total fertilizer in the amount of 50%-60%, big bell mouth topdressing the second time.