How to plant watermelon? How and when to plant watermelon

Watermelon is a hot-selling fruit every summer, and it also has the highest returns among all crops. Many people want to grow watermelons in large quantities, but they don’t know much about its planting methods and time. Today, the editor will take you to learn about these professional knowledge, so that everyone can easily learn how to grow watermelons.

How and when to plant watermelon

1. Planting time

The planting time of watermelon should be chosen in spring. If watermelon is planted in a greenhouse, it should be planted between March 10 and 20 each year. If watermelon is planted in a small arch shed, its planting time should be postponed by 10 to 15 days. In addition, watermelon planted in a solar greenhouse should be planted 5 to 7 days earlier than that in a greenhouse.

2. Land preparation and ridge making

15 days before planting watermelons, the land for planting watermelons should be treated with ridges and soil preparation. If watermelons are planted in a greenhouse, high ridges and double rows should be selected, with a spacing of 90 cm between large rows and 40 cm between small rows. The wheel width should be about 30 cm. After the ridge surface is prepared, it should be covered with plastic film.

3. Field management

After planting watermelons, special attention should be paid to field management. This plant has high requirements for temperature. The temperature of the greenhouse should be kept between 25 and 30 degrees during the day, and the temperature at night should not be lower than 15 degrees. If the temperature during the day exceeds 30 degrees, ventilation should be carried out in time. After the watermelon enters the flowering period, the temperature in the greenhouse can be appropriately increased and maintained at around 30 degrees, and it should not be lower than 18 degrees at night. After planting watermelons, attention should also be paid to ventilation, especially after each watering, ventilation should be carried out in time to reduce the humidity in the greenhouse.

4. Fertilizer and water management

Fertilizer and water management is also very important when planting watermelons. The demand for fertilizers such as nitrogen, phosphorus and potassium varies at different growth stages. Most of the time, topdressing is required three times after the watermelon is planted. The first time should be during the seedling stage, and urea water can be selected at this time. The second fertilization should be applied when the vines grow to about 30 cm. Cake fertilizer or compound fertilizer should be selected. The third fertilization should be applied when the watermelon is fruiting. Potassium phosphate and compound fertilizer should be selected at this time. The amount of fertilizer per mu is about 40 kilograms. Watering should be done in time after each fertilization, but it should be appropriate during the fruiting period to avoid reducing its fruiting rate.