How long does it take for watermelons from sowing to fruiting? When will you plant it? How do you plant it?

Watermelon is a seasonal fruit in summer. It originated in Africa and was introduced into China later. Now there are widespread cultivation throughout our country, how long does it take for watermelon to bear fruit from sowing? When do you plant it? How to grow?

How long does it take for watermelon to grow from seed to fruit?

The time from sowing to fruiting varies according to the variety, for example:

1. early-maturing varieties

It takes 90-90 days from sowing to harvesting. Melons mature quickly and are suitable for close planting.

2. medium maturing cultivars

It takes 90-100 days from sowing to harvest in the north, melon ripens later, 30-40 days from female flower opening to maturity, plant type is larger, growth is strong.

3. late-maturing varieties

It takes 100-120 days from sowing to harvesting in the north.

In addition, the growth period of watermelon includes the following stages:

1. germination stage

Under the condition of temperature 15℃-20℃, it takes about 9 days from seed germination to cotyledon.

2. seedling stage

At temperatures of 20 ° C-25 ° C, it usually takes about 20 days, and at temperatures of 15-20 ° C, it takes about 15 days. This period can be divided into two leaf stages and the "round tree" stage.

3. tendril stage

At temperatures of 20-25 ° C, female flowers from the "ball" to the fruit node open to the vine for about 18 days, and then a female flower opens every 3 to 4 days.

4. fruiting period

At 25-30℃, it takes 35-40 days from female flower opening to fruit maturity.

2. When is watermelon planted?

Watermelon is usually sown in spring, but if it is planted in a greenhouse, it can be sown all year round. In addition, watermelon sowing time varies according to different factors such as region and environment, early can be carried out in March, late can be started in mid-late April, or in June-July sowing.

3. How to grow watermelon?

1. sowing and seedling

The seeds are sun-dried for 2 days before sowing, then disinfected, soaked and germinated at a constant temperature of 33℃. After germination is completed, the seeds are sown on a pre-arranged seedbed. When sowing, the seeds with bud tips are placed horizontally in a nutrition bowl, 1 seed per bowl, covered with fine soil with a thickness of 1 cm, and covered with a film.

2. fertilization and planting

Before planting, apply base fertilizer to the plot. The base fertilizer is mainly high-quality organic fertilizer and cake fertilizer, supplemented by inorganic fertilizer, which generally accounts for 60%-70% of the total fertilizer application amount. Nitrogen, phosphorus and potassium should be matched reasonably. The fertilizer application amount is determined according to the variety and plot situation. Early maturing watermelon can be planted in 1 month of seedling age, heatstroke seedling age 20-25 days, and late maturing 7-10 days. Dig holes before planting, and plant seedlings according to appropriate density.

3. field management

When watermelon fruit begins to expand, topdressing and irrigation should be carried out in time, and the amount and type of topdressing should be determined according to the actual situation. Control water before flowering and fruiting. After fruiting, ensure sufficient water supply. 7-10 days before harvesting, it is not suitable to water. In addition, watermelon pruning and vine pressing should also be carried out in a timely manner, generally not in rainy days.

In the process of watermelon planting, attention should also be paid to preventing blight, anthracnose, epidemic disease, small cutworm, aphid and red spider and other diseases and insect pests. It is best to spray chemicals in advance for prevention and control. If the watermelon is ripe, it is best to pick it in the morning, and the melon that needs to be transported for a long distance can be picked eight-ripe.