Magnetic Bead Acid Nucleic Extraction Kit
In order to implement the requirements for the prevention and control of the new coronavirus pneumonia epidemic, all parts of the country are actively cooperating in the normalization of epidemic prevention and control. Each city has arranged multiple nucleic acid testing sampling points, and requires a negative nucleic acid test result within a few days. Public places are accessible, and the importance of nucleic acid testing for epidemic prevention and control is self-evident. Magnetic Bead Acid Nucleic Extraction Kit,Viral Dna Extraction Kit,Viral Rna Extraction Kit,Rapid Viral Rna Extraction Kit Jilin Sinoscience Technology Co. LTD , https://www.jlgkscience.com
As of now, there are 13,000 medical and health institutions in the country that can carry out nucleic acid testing, and 153,000 professional and technical personnel are engaged in nucleic acid testing technology. The nucleic acid testing capacity has reached 57 million tubes per day. In order to help the prevention and control of the new crown epidemic, Yisheng Biology quickly launched the nucleic acid extraction reagent + 96-channel automatic nucleic acid extraction instrument. It only takes about 10 minutes to extract 96 nucleic acid samples at one time, and extract nucleic acid in a faster and more accurate way. Work becomes more efficient.
Magnetic Bead Swab Sample Viral DNA/RNA Extraction Kit can be used to isolate and purify high-quality viral DNA/RNA from various swabs and virus culture supernatants. By using magnetic beads with unique separation function and carefully optimized buffer system to efficiently capture the released nucleic acid, the extracted nucleic acid has high yield and good quality, which is suitable for various downstream application experiments, such as RT-qPCR, qPCR and other experiments.
Technical measures to increase the yield of machine inserted rice
There are three main strategies to boost total rice production: expanding the planting area, shifting from single-season to double-crop rice, and increasing rice yield. Among these, improving rice yield is the most critical factor in raising overall production, enhancing grain benefits, achieving agricultural efficiency, and boosting farmers' income. In recent years, the promotion of mechanized transplanting technology has shown promising results. This technique saves labor, time, and costs while increasing productivity and profits. However, improper implementation can negatively impact the effectiveness of machine transplanting. To maximize the benefits of this method, it is essential to implement the "five key steps" effectively—cultivating healthy seedlings, preparing suitable fields, using high-quality machines, ensuring proper transplanting, and managing the field after planting. These steps must work in harmony to ensure successful rice production.
First, cultivating quality seedlings is crucial for successful mechanical transplanting. Seedling quality directly determines the success of the entire process. A good seedling should be 18–20 days old, with 3–4 leaves, a stem width of 2–2.5 mm, and 12–15 roots per plant. The seedlings should be uniform in height (12–15 cm), evenly spaced, and have 2–3 plants per square centimeter.
To achieve this, selecting the right variety is essential. Choose stable, high-yield, disease-resistant, and lodging-resistant strains. Field selection should be based on convenience for transportation, irrigation, and sunlight exposure. A 1:10 or 1:100 ratio between seedbed and field is ideal. Proper bed preparation and sowing rates are also important. For hybrid early rice, about 2 kg of seeds per mu is recommended, with a germination period of around 105 days. Sowing should be even and cover all corners of the tray.
Next, preparing the field is fundamental for successful rice cultivation. The field should be level, well-fertilized, and free of weeds, with a maximum height difference of no more than 3 cm. This ensures optimal conditions for the transplanted seedlings.
Using a reliable and well-maintained machine is another key step. Before operation, the transplanter must be inspected and adjusted properly. The spacing between plants, depth of insertion, and number of seedlings per hole should be set according to specifications. Typically, 18,000 holes per acre are recommended, with 3–5 seedlings per hole, totaling over 90,000 seedlings. The insertion depth should be 0.5–1 cm to prevent drifting or falling.
During operation, the machine should move at a steady speed, avoiding sudden stops or fast movements. The path should be straight, and operations should be avoided during heavy rain, cold weather, or muddy conditions. The machine should not be stopped mid-operation unless necessary.
The fourth step involves inserting the seedlings. The success of the transplanting depends on the accuracy of the process. The rate of missing plants should be less than 5%, the damage rate below 4%, and the uniformity above 85%. The floating rate should also be under 3%.
Finally, effective field management after transplanting is essential. After the seedlings are planted, proper water management, fertilization, weed control, and pest prevention must be carried out. Techniques such as shallow water irrigation, careful fertilizer application, timely drying of the field, and chemical control of weeds and diseases will ensure healthy growth and higher yields.
By following these five key steps, farmers can significantly improve the success of mechanical rice transplanting, leading to increased productivity and better returns.