I believe many people are familiar with yam, but there may be some strangeness to the iron yam. In fact, the iron yam is one of the yam varieties. The iron yam is also an economic crop that can be used both medicinally and ediblely. The following small series will specifically explain the planting management methods of the iron stick yam. 1. Land preparation If the cultivation of iron yam is in the land without heavy shovel, it is generally necessary to deepen the drying before winter. In the spring season, it is necessary to combine the use of decomposed farmyard manure and cake fertilizer as the base fertilizer for land preparation. Iron stick yam also has a way of trenching and land preparation, which has the advantages of labor saving and good benefits. You can carry out according to local planting habits. Second, the appropriate sowing When the soil temperature of the local block is stable at 10 °C or above, the iron stick yam can be planted, usually in the middle and late April of each year. The planting density of iron stick yam is about 7000-8000 plants/mu, and the row spacing is 10*70cm. After the sowing, cover the soil about 4cm. After the iron bar yam is planted, it is necessary to open a drainage ditch around it, because it can drain the water when the rainy season is coming. Third, the field management of iron rod yam 1, carry out the scaffolding The iron stick yam frame is good for ventilation and light transmission, reducing pests and diseases. Generally, after the emergence of the iron yam plant, the rod can be racked and the height is about 1.5m. 2, cultivating, weeding After the emergence of the iron yam yam, it is necessary to carry out cultivating and weeding in time to avoid weeds and iron stick yam competing for nutrients, which can be shallow in the early stage and can be removed later. 3, timely watering Before the planting of the iron stick yam, the bottom water is poured once. After the planting is insufficient, the small water can be replenished to ensure the normal emergence of the yam. After the iron stick yam is full, it should be combined with top dressing for watering. Before the autumn, watering can be less. After the autumn, a large amount of water can be poured, which is conducive to the expansion of the iron stick yam. 4. Pest control of iron stick yam There are many insect pests in the iron yam. They are generally used to eat the underground stalks of the iron yam. They can be used to prevent and control the land in the winter, using the decomposed organic fertilizer and pesticides. Finally, when the stems and leaves on the ground of the iron stick yam slowly become yellow, and the underground tubers enter a dormant state, they can be harvested and sold. For the wonderful pictures and popular comments on the management methods of iron stick yam cultivation, you may be interested in the following recommended contents. Welcome to read.
PCR ( Polymerase Chain Reaction)
SARS-Cov-2, One test type that uses a sample from a nose or throat swab in a 'PCR test'. The goal is to make enough copies of the viral cDNA in order for it to be detectable.
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.
Rt-Pcr For Sars-Cov-2 Testing,Real Time Pcr Machine Kary Mullis,Pcr Machine Covid-19 Nucleic Acid,Qpcr Machine Covid-19 Omicron Detection 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.