In recent years, field trials have demonstrated the effectiveness of "no deep plowing" and the "Shuofeng 481" soil conditioner in improving the yield of autumn tomatoes. The application of these methods resulted in yields ranging from 352 to 463 kg per mu for "no deep plowing," and 211 to 363 kg per mu for "Shuofeng 481." This translates to an increase of 8.7% to 11.5% and 5.2% to 6.5%, respectively.
Field management plays a crucial role in ensuring healthy growth and high yields of autumn tomatoes. Key practices include:
1. **Vine Stretching and Arrangement**: After planting, vines should be supported using bamboo poles or wooden sticks that are 1.6–1.8 meters long. These should be inserted into the soil near the plants and tied together to form a strong framework. As the plants grow, vines should be secured with cloth or plastic ropes to maintain proper growth and prevent damage.
2. **Pruning Buds**: Pruning is essential to balance vegetative and reproductive growth. In summer and autumn, the double-stem pruning method is commonly used. This involves keeping the main stem and one of the strongest lateral buds below the first flower cluster, while removing all other buds. For indeterminate varieties, topping should be done once the fruit setting rate meets the target, depending on plant health. Buds should be removed when they are about one inch long, as both early and late removal can harm plant development. Avoid pruning on rainy days to reduce infection risks.
3. **Top-dressing and Irrigation**: Applying fertilizers like pig manure, compound fertilizer, and urea during critical growth stages helps improve yield. Fertilizer should be applied based on weather and plant conditions—diluted in dry weather and increased after rain or irrigation. It's important to avoid excessive nitrogen during fruit expansion and harvest. A typical top-dressing rate is 10–20 kg of diluted liquid or compound fertilizer per acre. Apply it 3–5 inches away from the roots. Spraying micro-fertilizers such as "High-energy Red Potassium" can enhance nutrient uptake. When combined with "no deep plowing," 200 grams of the soil conditioner mixed with 100 kg of water can be sprayed on the surface soil to improve soil permeability, promote root growth, and reduce soil-borne diseases.
4. **Flower Protection**: During the flowering stage, which often occurs in dry conditions, pollination can be challenging. To improve fruit set, "Shuofeng 481" should be sprayed directly onto the leaves on the day of flowering.
5. **Disease and Pest Control**: Common diseases in summer and autumn include late blight, bacterial speck, leaf mold, and black rot. These can be controlled using bactericides, fungicides, and chlorothalonil. For bacterial wilt and ulcers, agricultural streptomycin and chlorothalonil are effective. Viral diseases such as mosaic and mottle can be managed with virus inhibitors and bactericides. Insect pests like bollworms and aphids require regular spraying with insecticides like BT or dimethoate, with rotation to avoid resistance.
6. **Harvesting**: Autumn tomatoes mature faster than spring ones, with quicker color change and softer fruits. For local sales, harvesting should begin when fruits start turning red. For long-distance transport, it's best to pick them at the ripening or coloring stage to ensure quality.
These techniques, when applied properly, can significantly improve the productivity and quality of autumn tomato crops. (Institute of Soil and Fertilizer, Guangxi Academy of Agricultural Sciences)
Fluorine-Containing Methylbenzene
Fluorine-Containing Methylbenzene products can be used as herbicides in the manufacture controlling wheat fields, cotton fields and other broadleaf weeds and perennial weeds. It can also be used in the manufacture of antipsychotics drugs.
The Fluorine-Containing Methylbenzene products must be kept under seal, once exposed to light will immediately cause discoloration. It should also be stored in a cool, ventilated warehouse, away from fire and heat. Compartment temperature should not exceed 30 ℃. And make the appropriate technical measures for fire and explosion. Products will Decomposition by high fever and emit toxic gases, such as carbon monoxide, carbon dioxide, hydrogen fluorid. Due to ts vapor is heavier than air, it can spread from low place to far away places. In case of fire conditions, should not fire with water. In case of a small amount of leakage should be evenly sprayed with dilute hydrochloric acid. In case of large spills should build a causeway or trenching asylum. The transfer pump to tankers or exclusive collector, recycling or shipped to the waste disposal sites.
Containing Methylbenzene, 5-Fluoro-3-Nitrotoluene,2-Bromo-5-Fluorobenzotrifluoride
Taizhou Volsen Chemical Co., Ltd. , https://www.volsenchem.com