How to grow watermelons

First, the selected seeds are dried and sterilized, then soaked and sprouted. The seeds can be sown when the radicle grows to 0.5 cm. When sowing, put the seeds with bud tip flat in a nutrition bowl, 1 grain per bowl, covered with fine soil 1 cm thick, covered with film. The sowing time is determined according to the variety, region, etc.

After sowing watermelons, pay attention to the following points:

1. Replenish seedlings

If the seedlings are unearthed unevenly and lack of seedlings, they should be replanted in time. It is best to replant with budding seeds. If the lack of seedlings occurs late and the number is small, one seedling can be dug in the double seedling hole and transplanted into the lack of seedling hole. And in order to make it convenient to replenish seedlings, it is best to sow more in the open space between rows when sowing, which is specially used for replenishing seedlings. The younger the seedling, the better.

two。 Intermediate seedling

The amount of sowing in each hole of direct seeding melon field is large, and it is easy to cause crowding, mutual shading and other phenomena due to many seedlings, so the redundant seedlings and diseased seedlings should be removed in time. After the second true leaf was unfolded, the seedlings were carried out for the first time to remove the weak and stay strong, leaving two strong seedlings in each hole. When the seedlings grow the fourth true leaf, the seedlings are fixed for the second time, and one seedling with the best growth is selected for each hole. Between seedlings, fixed seedlings, it is best to use scissors or fingers to remove the eliminated seedlings, do not pull out the roots, so as not to damage the roots of the selected healthy seedlings.

3. Colonization

The seedling age of precocious watermelon is about 1 month and can be planted with 2-3 true leaves. The seedling age of medium-maturing watermelon is 20-25 days, and that of late-ripening watermelon is 7-10 days. 2 rows of wide border planting and 1 row of narrow border planting. The small fruit type watermelon was planted in the greenhouse with 1500-1800 plants per 667m2, and the ground-climbing cultivation with three or four-vine pruning. Medium and large watermelons are generally planted 650-700 plants per 667 square meters, and grafted seedless watermelons 300-400 plants per 667 square meters.

4. Water and fertilizer

In general, the soil is not dry or watered, and the amount of water should not be too much at a time. Watering should be controlled at the seedling stage, and the amount of water should be increased during the fruit expansion period. When the young melon grows to the size of an egg, apply expanded melon fertilizer according to the growth of the plant.

Generally speaking, strong seedlings are the basis of high yield, so the majority of melon farmers must do a good job in seedling management.