To ensure successful germination, it's important to select heat-resistant spinach varieties that are easy to sprout and resistant to diseases. Round-leaf or large-leaf spinach varieties are ideal choices. Before planting, soak the seeds in water for 12 to 24 hours. After soaking, place them in a low-temperature environment between 2°C and 4°C to promote germination. Alternatively, you can spread the soaked seeds in a cool, shaded area of the room. Make sure to rinse them with clean water again to remove any mucus that may cause mold. Keep turning the seeds regularly and maintain moisture. Germination usually takes about 4 to 5 days before they are ready to be sown.
Sowing should take place between mid-May and early June, which is typically during the high-temperature season. To ensure continuous growth and a longer harvest period, increase the seeding rate to about 15 kg per mu (approximately 0.067 hectares). For better results, mix two types of pre-soaked seeds with one dry seed when sowing. Choose well-drained sandy loam soil and prepare the field by plowing and incorporating sufficient base fertilizer—ideally 1500 to 2000 kg of fully decomposed manure per acre. The day before sowing, dig furrows and level the bed. Water thoroughly before planting, and continue watering in the morning and evening until the seeds emerge.
After sowing, it’s best to cover the ground with a layer of straw or grass to retain moisture and regulate temperature. If possible, set up shade nets and remove them once the seedlings emerge. During the growing phase and after each harvest, apply well-decomposed manure tea in batches. Use small amounts of fertilizer and water carefully to keep the soil consistently moist. In the rainy season, ensure proper drainage to avoid waterlogging and reduce the risk of disease. Regular monitoring and timely care will help maintain healthy growth and improve yield.
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