Causes and preventive measures of pumpkin deformity

1, short of water and fertilizer, it is easy to form pointed-billed melons in the early stage, thin-waisted melons in the middle stage and slender crooked melons in the later stage. But in the middle stage, if fertilization is too fierce, it is easy to form a pot-bellied melon.

2. Poor pollination and uneven distribution of pollen make the parts with insufficient pollination sag.

3. Too high or too low temperature will affect photosynthetic efficiency, make nutrition insufficient and inhibit fruit development.

Detailed methods of prevention and control measures:

1, meeting the requirements of fertilizer and water. Zucchini needs more fertilizer and has strong ability to absorb fertilizer. One is to apply sufficient fertilizer, and the other is to combine nitrogen and potassium with timely topdressing. Each batch of melons should be topdressing once after harvest. In the early stage of soil moisture in the field, dry control is the main method, and wet management should be maintained in the fruiting period.

2. Artificial pollination. Every morning at 8~ 10 is the peak of male flowers. To pick the male flowers, remove the corolla, and gently throw the anthers on the stigma of the male flowers. A male flower can produce three female flowers, and the pollination effect is better when the air humidity is high.

3. Pay attention to humidity control. The optimum temperature range for the growth and development of zucchini is 18~25℃, and the film uncovering time should be adjusted according to the climate change.

Zucchini planting method:

Choose clean and plump seeds as planting objects, then soak them in warm water of 50-55C 15-20 minutes, soak them for 4-6 hours after the water temperature is cooled to 20-30C, then take them out and drain them, and put them in an environment of 25C to accelerate germination. Sowing: Sow in sunny weather, cover the soil with a thickness of 2 cm after sowing, and sow after the seedlings grow 3-4 true leaves.