Become a "master" in hot weather
Temperature is an extremely important condition that affects the effect of fertilizer application. On the one hand, it can affect the conversion of fertilizers in the soil and the accumulation of effective nutrients; on the other hand, it also affects the internal physiological function of crops. In high temperature seasons, improper fertilization can not only promote Crop production has increased, and it may be reduced. 1. According to the plant's physiological growth and development process, combined with the critical area of ​​crops' fertilizer demand and the period of effectiveness, timely and effective topdressing. Fertilize when there is growth, and apply little or no if the amount of growth is small. If the growth is large, apply more (but not excessively). The stage where fertilizer is most needed is the period of vigorous growth, flowering and fruiting of crops. 2. The combined use of nitrogen, phosphorus and potassium plays a mutually promoting role: on the one hand, phosphate fertilizer can be more effectively used at higher temperatures, producing good fertilizer efficiency, on the other hand, sufficient phosphorus can increase the utilization rate of nitrogen, play a role The role of phosphorus in nitrogen. Because carbon ammonia is easily decomposed by heat and high concentration of nitrogen fertilizer is easy to cause crops to burn seedlings, the application of nitrogen fertilizer should be reduced in high temperature weather. 3. Adopt the best fertilization method: deep application, dilution and water application. Greenhouse planting** for integrated spraying of water and fertilizer, or drip irrigation. No matter what method is adopted, keep a distance of more than 10 cm from the plant, so as to avoid direct chemical fertilizer contact with plant straw burning seedlings, especially peppers, flue-cured tobacco, melons, vegetable crops. 4. High temperature weather above 35℃ is generally not recommended for top dressing. The best fertilizing time is in the evening, which is suitable for personnel operation and can make up for the shortcomings of short crop absorption time. It is the best fertilizing time. Disclaimer: Some articles of this website are transferred from the Internet. If the legal rights of third parties are involved, please inform this website for processing. phone
PCR ( Polymerase Chain Reaction)
Superyears General 2215 RT-qPCRadopts all-in-one with an industrial art design, combining the Analytical Instrument, Large touch screen, and Computer. General 2215 RT-qPCR is equipped with the proven thermal-cooled electric technology, which can recognize the speed rate of temperature control faster and obtain high-quality testing results within 40 minutes. To ensure the sensitivity and stability of the testing a design with traditional beam path with a susceptible CMOS image sensor is used. In addition, General 2215 supports multiple PCR analysis and High-resolution Melt Curve (HRM) analysis, compatible with the mainstream reagent kit in the market. It will be the best assistant and your preferred RT-qPCR.
Real-Time Pcr Instrument,Real-Time Ploymerase Chain Reaction Covid-19,Real Time Quantitative Pcr System,Pcr Tube Clinical Analytical Instruments Nanjing Superyears Gene Technology Co., Ltd. , https://www.superyearsglobal.com
It provides a way to make more copies of a portion of DNA.
We need to have PCR ingredients that include DNA portion, Buffer solution, Primer+DNA (tap polymerase), and Nucleotides during the preparation step.
In the step of PCR sequence, there are three steps in this section.
Step 1 Denaturation
The addition of heat is needed to separate the two strands of the DNA molecule.
Step 2 Annealing
Temperature, is going to be cool in this step, should allow the primers to bind to the specific segments.
Step 3 DNA Synthesis
To make more copies of the DNA.
Those three steps above keep repeating to make enough copies of the DNA fragments. It is the principle of how PCR machine works.