How do tomatoes do not grow

Tomatoes often become leggy after planting, showing symptoms such as thick stems, large and swollen leaves, thin and weak flower buds, and flowers that fail to set properly. In other cases, the stems may be slender with prominent nodes, the leaves and flower buds may appear pale and thin, leading to poor fruit set and flower drop. This issue can significantly affect yield and quality. To address this, timely pruning, leaf removal, and staking should be performed to improve air circulation. Additionally, growth regulators can be applied to encourage better fruit setting and reduce excessive vegetative growth. The recommended concentration of the solution is between 20 to 50 mg/kg. If temperatures are low, the concentration can be slightly increased, while it should be reduced when temperatures are high. Otherwise, malformed fruits may occur. During the flowering stage, when 3 to 4 flowers in each inflorescence are fully open, each flower should be treated once, typically every 4 to 5 days. The treatment can be done by brushing the solution directly onto the flowers or using a small sprayer to mist them evenly. Be careful to avoid spraying the leaves, as this may cause leaf curling, thickening, and discoloration. Whether you're growing tomatoes in early spring or during the post-autumn season, whether using plastic mulch or greenhouse cultivation, there are several key points to consider when planting: First, control the seedling age and plant at the right time. For early-maturing varieties, seedlings should be around 80 days old, while medium- to late-maturing types require 90 to 100 days. For autumn plantings, seedlings should be kept shorter, about 25 days old. Second, prepare the planting area in advance. Ensure proper site preparation, basal fertilization, and that greenhouse covers and side walls are in place. Drainage ditches around the greenhouses should also be cleared 10 to 30 days before planting. Lastly, manage nitrogen fertilizer use carefully. Avoid over-fertilizing with nitrogen, especially when using deep soil cultivation methods, as excess nitrogen can worsen the legginess problem and lead to poor fruit development.

Test Kits

Diagnostic reagents can be divided into two categories: in vivo diagnostic reagents and in vitro diagnostic reagents. It is mostly a reagent for detection by the reaction between antigen and antibody.
A: Classification of in vitro diagnostic reagents:
1. In vitro biodiagnostic reagents managed as drugs include:
1. Blood type and tissue type reagents;
2. Microbial antigen, antibody and nucleic acid detection reagents;
3. Tumor marker reagents;
4. Immunohistochemistry and human tissue cell reagents;
5. Human genetic testing reagents;
6. Biochips;
7. Allergy diagnostic reagents.

2. In vitro reagents managed as medical devices include:
1. Clinical basic test reagents;
2. Clinical chemistry reagents;
3. Blood gas and electrolyte determination reagents;
4. Vitamin determination reagents;
5. Cell histochemical stains;
6. Autoimmune diagnostic reagents;
7. Microbiological test reagents.
B: According to medical test items, clinical diagnostic reagents can be roughly divided into clinical chemical test reagents, immunology and
Serological testing reagents, hematological and cytogenetic testing reagents, microbiological testing reagents, body fluid excretion
Detection reagents, genetic diagnosis reagents, etc. Among them, the market share of clinical chemistry
The largest, close to 34%; followed by the immunology market, accounting for about 29%. Novel immunodiagnostic reagents and genetic diagnostic tests
The reagent was developed in the late 1980s, and it is the most common diagnostic reagent for all current diagnostic reagents, regardless of technology or market.
The fastest growing product.

Urine Rapid Test Kit,Rapid Test Kit 6-Panel,Toxoplasma rapid test kits,Fecal Occult Blood Test

Jilin Sinoscience Technology Co. LTD , https://www.jlgkscience.com