Plug seedling precautions

A vegetable farmer from Shengcheng City, Shouguang, recently asked: "My self-cultivated seedlings have been growing for over 20 days, and now the leaves are turning yellow. What should I do?" After analyzing the situation, it was found that the main cause of the yellowing is likely due to excessive watering. The seedlings are staying too wet, which can lead to root problems and nutrient imbalances. Additionally, the substrate used might not be well-draining, causing poor aeration and further contributing to the issue. Over-fertilization, especially an excess of nitrogen, can also result in yellowing leaves. To address this, the farmer can try using a foliar fertilizer containing iron and zinc. Mix it at a ratio of 1:800 and spray it on the leaves several times. This method helps provide essential nutrients directly to the plant without overloading the roots. It's also important to adjust the watering schedule, allowing the soil to dry slightly between waterings. Ensuring proper drainage and avoiding overuse of nitrogen-rich fertilizers can help restore the health of the seedlings. In addition, checking the temperature and light conditions is also recommended, as environmental stress can contribute to leaf discoloration. By taking these steps, the farmer should see improvement in the growth and appearance of the seedlings.

Automatic Nucleic Acid Extractor

Nucleic acid extraction instrument is an instrument that automatically completes the nucleic acid extraction of samples by applying the supporting nucleic acid extraction reagents. Widely used in disease control centers, clinical disease diagnosis, blood transfusion safety, forensic identification, environmental microbial testing, food safety testing, animal husbandry and molecular biology research and other fields.
Using magnetic beads as the carrier, using the principle that magnetic beads adsorb nucleic acid under high salt and low pH value, and separate from nucleic acid under low salt and high pH value, and then move the magnetic beads or transfer the liquid to realize the entire extraction and purification process of nucleic acid. Due to the uniqueness of its principle, it can be designed into a variety of throughputs, which can be extracted from a single tube or 8-96 samples, and its operation is simple and fast. It only takes 30-45 minutes to extract 96 samples, which greatly improves the The experimental efficiency is low and the cost is low, so it can be used in different laboratories, and it is the mainstream instrument on the market.

Features of Magnetic Bead Nucleic Acid Extractor
1. Enables automated, high-throughput operations.
2. Simple and fast operation.
3. Safety and environmental protection.
4. High purity and high yield.
5. No pollution and stable results.
6. Low cost and easy to be widely used.
7. Different types of samples can be processed simultaneously.

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