Cultivation technology of small watermelon in early spring

Planting time

Planted in early spring protected areas in late February, sowing seedlings, seedling age 35-40 days, using warming methods to raise seedlings, planted in the greenhouse in early and mid-April, marketed in early June.

Spring bare land planting from late March to late May, sowing, seedlings are about 30 days old. Seedlings are cultivated in protected areas, and they are planted in bare ground or covered with small arch sheds after the final frost period.

Sowing seedlings

Nutrient soil preparation Nutrient soil preparation methods are more, commonly used 2/3 peat soil plus 1/3 field soil without sown melon, mix well and sieve, or use 1/3 rotten farm manure plus 2/3 field soil. Add 2 kg of superphosphate to each square of soil, disinfect with 800 times carbendazim solution, or disinfect with formaldehyde fumigation.

Seed soaking and germination can be sterilized by soaking in 55C warm water, stirring continuously until the water temperature is around 30C. After soaking for 4 hours, wash the seeds, wrap them tightly with a wet towel, and germinate under 30C.

Before sowing * Use 800 times methyl thiophanate solution to irrigate the seedling soil. When the seed buds grow to about 0.5 cm high, sow in the seedling tray. When sowing, the seeds should be laid flat with the bud tips down, covered with a fine nutrient soil 1.5 cm thick, and poured into the seedling tray with 800 times methyl thiophanate solution, and the temperature should be kept at 25-30C to ensure the emergence of the seedlings. The temperature can be kept at 18-28C after emergence. Seedbed is better than dry. Early spring should prevent frost damage and ensure sufficient light.

Field management

The planting method is generally multi-vine and multi-fruit whole-vine planting. The plant spacing is 60-80 cm × 180-200 cm, and 530-730 plants can be planted per mu. It can also be planted with a vertical grid frame, with a row spacing of 50 cm × 100-140 cm, and double-row planting.

Fertilizer is mainly based on bottom fertilizer, supplemented by top dressing. Use 60 kg of compound fertilizer and 3000 kg of pigpen fertilizer per mu for the base fertilizer. Afterwards, the vine spread fertilizer and swollen melon fertilizer should be applied during the whole growth period.

Due to the small fruit size of the whole vine, it should be planted in a multi-vine and multi-fruit mode to achieve higher yields. Generally, 1 main vine and 3-4 sub-vines are reserved. Keep two stubble melons, and the seed vines should be removed as soon as possible.

Disease and pest control The small watermelon varieties have strong disease resistance. The general diseases are blight, wilt, virus and anthracnose. The disease and pest control is conducted once every 7-10 days.

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