Why don't yardlong beans flower? Detailed explanation of solutions

Yardlong beans are a vegetable that many people like, and basically every household in rural areas grows them. Under suitable conditions, it generally takes only about 45-60 days from sowing to flowering, but if this period has passed and they still have not flowered, then you may need to look for the cause. So what causes yardlong beans not to flower? Let's learn about it together.

1. Fertilizer and water

Yardlong beans have high yields and a relatively large demand for fertilizer and water. If fertilizer and water are insufficient, they may fail to flower, but during the flowering period, too much fertilizer and water will cause rampant growth of branches and leaves, resulting in insufficient nutrients needed for flowering and causing failure to flower. Therefore, in the fertilizer and water management of yardlong beans, attention should be paid to combining control and promotion, and properly adjusting fertilizer and water so that the vegetative growth and reproductive growth of yardlong beans are balanced, achieving the goal of neither excessive growth nor delayed flowering. Generally, fertilizer and water should be properly controlled at the seedling stage, the base fertilizer should be mainly organic fertilizer, and watering should be increased during the flowering period along with more organic fertilizer.

2. Temperature

Yardlong beans are heat-tolerant but not frost-tolerant. The suitable temperature during the flowering and pod-setting period is 25-28 degrees. When the temperature is higher than 35 degrees, yardlong beans will show premature aging, causing more flowers and pods to drop, while below 10 degrees, flower bud differentiation is delayed. Therefore, attention should be paid to temperature regulation, and it is best to ensure this in a timely manner. When cultivating in a greenhouse, attention should be paid to temperature adjustment: open the greenhouse film at high temperatures for ventilation and to lower the temperature, and add straw curtains at low temperatures to increase warmth and promote normal growth.

3. Light

Yardlong beans have two responses to day length: one type has no strict requirement for sunlight, while the other is relatively strict and is suitable for cultivation in a short-day environment. If you are growing this short-day yardlong bean variety and the light duration in the growing environment is also relatively long, then stem and vine overgrowth and delayed and reduced flowering and pod-setting often occur. For this phenomenon, proper shading is needed to help it flower and set pods earlier.

4. The plant's own reasons

After yardlong beans enter the high-temperature season, after the first peak crop, a summer dormancy phenomenon often appears, and at this time the plant will show a major reduction in flowering and pod-setting. If it is due to summer dormancy, then fertilizer and water management must be strengthened, and the plant will produce a large number of side vines from the leaf axils of the middle and lower parts, and send out flower clusters, flowering and setting pods in large amounts, recovering vitality and producing a second yield peak.

The above is an introduction to the reasons why yardlong beans do not flower and the solutions. We hope it can help you. If you want to learn more related knowledge, please follow us.