The reason why cucumber flowers but does not bear fruit

Cucumber is a popular vegetable grown all over the country. With the development of modern agricultural technology, especially the application of greenhouse cultivation technology, cucumbers can now be supplied all year round and are no longer limited to spring, summer and autumn. However, some vegetable farmers often encounter the problem of cucumbers only blooming but not bearing fruit during the planting process. Let’s learn together why cucumbers bloom but do not bear fruit.

1. The reason why cucumbers only bloom but do not bear fruit

1. Improper fertilization

Cucumbers need to be fertilized properly during their growth period. Single fertilizer or excessive compound fertilizer may cause soil compaction, affecting the root system's absorption of nutrients and water, resulting in cucumbers only blooming but not bearing fruit.

2. Improper watering

Cucumbers like warmth. If the soil humidity is too high under continuous cloudy or low temperature conditions, continued watering may cause root growth to be hindered, affecting the normal growth of cucumbers.

3. Leaving too many melons

Cucumbers produce a large amount of fruit. If the excess female flowers are not removed properly, the flowers and fruits will compete for nutrients, resulting in a decrease in the amount of fruit.

4. Excessive use of pesticides

When preventing and controlling diseases and pests, excessive use of chemical agents or too short spraying intervals may cause pesticide damage to cucumbers and affect normal growth.

5. Harvesting is not timely

Cucumbers grow rapidly after entering the fruiting period. Failure to harvest them in time will result in the female flowers not being able to bear fruit normally due to lack of nutrients.

2. Measures to prevent cucumbers from blooming but not bearing fruit

1. Reasonable water and fertilizer management

Apply fertilizer reasonably according to the growth characteristics of cucumbers, use fully decomposed farmyard manure as base fertilizer, apply nitrogen, phosphorus and potassium compound fertilizer before flowering and fruiting, reduce nitrogen fertilizer and increase phosphorus and potassium fertilizer during flowering and fruiting.

2. Water at the right time

Water the cucumbers appropriately according to their growth and weather conditions. Water every 4-5 days in sunny weather and avoid watering during high temperatures at noon.

3. Thinning flowers and fruits

Thin out flowers and fruits according to the growth of the plants to avoid excessive nutrient consumption due to too many fruits, which will affect the health of the cucumbers.

4. Timely vine removal

Falling vines helps to evenly distribute leaves, improve photosynthesis efficiency and extend the fruiting period. After the vines fall, keep the plant height at about 1.5 meters and ensure that each plant has more than 15 functional leaves.

5. Rational use of chemical drugs

Use chemical drugs according to the correct usage methods and intervals, avoid frequent use or mixing of multiple drugs, and reduce the risk of drug damage.

In short, finding out the reasons for flowering but not fruiting can effectively avoid the phenomenon of cucumbers only flowering but not fruiting, and improve the yield and quality of cucumbers.