How to Prevent Heatstroke in Chinese Cabbage
In summer, when temperatures rise and the risk of heatstroke increases, it's important to take preventive measures, especially when growing Chinese cabbage. Here are some effective strategies to help protect your crops from heat stress:
First, choose the right variety. Opt for heat-resistant, early-maturing, disease-resistant, and moisture-tolerant types. These varieties are more likely to thrive under high-temperature conditions and reduce the chances of heat damage.
Second, select an appropriate planting location. It’s best to rotate crops and avoid planting Chinese cabbage in fields where watermelon, tomatoes, cucumbers, beans, garlic, or leeks were previously grown. This helps prevent the spread of pests and diseases that may have accumulated in the soil.
Third, prepare the soil properly. Create raised beds about 10 to 20 cm high, either single or double rows, to improve drainage and irrigation. Plant around 3,000 to 5,000 seedlings per mu, with a spacing of 40–50 cm between rows and 33–43 cm between plants. After planting, cover the seeds with a thin layer of soil (about 0.5 cm) to keep them moist and protected.
Fourth, ensure proper irrigation and drainage. Install ditches to allow for efficient water flow and prevent waterlogging. Use small-scale irrigation methods, watering only when necessary—this helps regulate soil temperature. During hot midday hours, you can mist the plants to cool them down. Also, be prepared to drain excess water after heavy summer rains to avoid root rot.
Fifth, apply fertilizers correctly. Use fast-acting fertilizers like Golden Baby Bacteria during the rosette stage and the head-filling period. This supports healthy growth without over-stimulating the plants, which can make them more vulnerable to heat stress.
Sixth, focus on pest and disease prevention. Start by using well-fermented organic fertilizers, as they not only provide nutrients but also reduce the occurrence of pests and diseases. Products like Guardian Fertilizers have a high nutrient conversion rate after fermentation. Additionally, use plant growth regulators at key growth stages to boost the plant’s natural resistance to diseases and environmental stress.
By following these steps, you can significantly reduce the risk of heatstroke in your Chinese cabbage crop and ensure better yields even during the hottest months.
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