1. Land preparation and fertilizationBefore sowing, the land should be turned over to a depth of about 30 to 40 cm. The depth of the planting ditch should be about 30 cm. Phosphorus fertilizer and potassium fertilizer should be applied in the planting ditch to ensure that the fertilizer and soil are fully mixed. 2. Sowing MethodGenerally, the underground stems are used for propagation. The underground stems of the water chestnut are divided and dug up, leaving 2 to 3 buds without tubers. Mid-to-late November is more suitable for planting. When sowing, lay the underground stems flat with the buds facing upwards, and keep the plant spacing at 60 to 70 cm. After planting, cover with soil and then water. 3. Later maintenanceGenerally, fertilizer should be applied once in the spring when the sprouts emerge from the soil and are about 13 to 165 cm high to promote the rapid growth of stems and leaves above the ground. In May, when the leaf sheath is fully expanded, apply fertilizer once to promote its growth. |
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