The "flower topping" phenomenon of cucumbers occurs extremely frequently in cucumber cultivation in greenhouses. Once a "flower topping" occurs, the number of female flowers is excessive and the nutrition competition is intense. Most female flowers do not get enough nutrients and it is difficult to grow into mature melons, which consumes a lot of nutrients, affects plant growth and development, and forms weak seedlings. At the same time, it will also cause a large number of melons, causing a sharp drop in production and a significant reduction in production.
First, the cause of this phenomenon:
1. Cucumber cultivation in greenhouses, mostly in the beginning of the seedlings in September, seedling development period, in short days, low night temperatures, large temperature conditions day and night, this environment is conducive to female flower differentiation. In winter, the sunshine time is short and the night temperature is low. Female flowers grow and develop in large quantities, and consume a large amount of photosynthetic products. The nutrients needed for vegetative growth will be insufficient, and the plants will gradually become weak, eventually forming a “flower toppingâ€.
2. Inadequate management measures to accelerate the formation of "flower topping". Many vegetable farmers do not understand the pattern of flower bud differentiation in cucumber. In order to investigate high yields, during late autumn or early winter, ethephon is used to treat cucumber seedlings and promote their differentiation into female flowers. As a result, serious "flower topping" occurred.
3. Traditional greenhouse "dry, cold" management techniques will inevitably lead to "flower topping." According to the cultivation and management under the open environment, the indoor temperature is controlled at about 28°C, and ventilation is started at 25°C. The indoor temperature is controlled below 28°C, the ground temperature cannot be raised, the night temperature is low, the female flower is more differentiated, the plant growth is weaker, and the diseases are many. To control the occurrence of diseases, reduce the water, the cucumber lacks water, the growth will be even weaker, and the formation of malignant cycle.
Second, prevention of "flower topping" occurred measures
1. Strengthen seedling management, cultivate strong seedlings, seedling age can not be too long, transplanting within 30-35 days.
2. Change the “dry and cold†management methods, increase the indoor temperature, strengthen the water and fertilizer management, and maintain the robust growth potential of the plants.
3. The growth and development of cucumber is mainly carried out in the middle of the night. In order to promote vegetative growth, the indoor temperature in the middle of the night must be appropriately increased.
4. To collect melon in advance, timely sparse fruit thinning, reduce plant load. Promote nutrient growth.
5. It is necessary to strengthen fertilizer and water management, increase the amount of watering and watering times appropriately, promote hair rooting, achieve root propulsion, and suppress the occurrence of "flower topping". Appropriately increasing the number of top dressings outside roots, especially when it was found that the plant growth began to weaken, continuous spraying, increased photosynthetic efficiency, and promoted the vegetative growth of the plants.
First, the cause of this phenomenon:
1. Cucumber cultivation in greenhouses, mostly in the beginning of the seedlings in September, seedling development period, in short days, low night temperatures, large temperature conditions day and night, this environment is conducive to female flower differentiation. In winter, the sunshine time is short and the night temperature is low. Female flowers grow and develop in large quantities, and consume a large amount of photosynthetic products. The nutrients needed for vegetative growth will be insufficient, and the plants will gradually become weak, eventually forming a “flower toppingâ€.
2. Inadequate management measures to accelerate the formation of "flower topping". Many vegetable farmers do not understand the pattern of flower bud differentiation in cucumber. In order to investigate high yields, during late autumn or early winter, ethephon is used to treat cucumber seedlings and promote their differentiation into female flowers. As a result, serious "flower topping" occurred.
3. Traditional greenhouse "dry, cold" management techniques will inevitably lead to "flower topping." According to the cultivation and management under the open environment, the indoor temperature is controlled at about 28°C, and ventilation is started at 25°C. The indoor temperature is controlled below 28°C, the ground temperature cannot be raised, the night temperature is low, the female flower is more differentiated, the plant growth is weaker, and the diseases are many. To control the occurrence of diseases, reduce the water, the cucumber lacks water, the growth will be even weaker, and the formation of malignant cycle.
Second, prevention of "flower topping" occurred measures
1. Strengthen seedling management, cultivate strong seedlings, seedling age can not be too long, transplanting within 30-35 days.
2. Change the “dry and cold†management methods, increase the indoor temperature, strengthen the water and fertilizer management, and maintain the robust growth potential of the plants.
3. The growth and development of cucumber is mainly carried out in the middle of the night. In order to promote vegetative growth, the indoor temperature in the middle of the night must be appropriately increased.
4. To collect melon in advance, timely sparse fruit thinning, reduce plant load. Promote nutrient growth.
5. It is necessary to strengthen fertilizer and water management, increase the amount of watering and watering times appropriately, promote hair rooting, achieve root propulsion, and suppress the occurrence of "flower topping". Appropriately increasing the number of top dressings outside roots, especially when it was found that the plant growth began to weaken, continuous spraying, increased photosynthetic efficiency, and promoted the vegetative growth of the plants.
1. Cucumber cultivation in greenhouses, mostly in the beginning of the seedlings in September, seedling development period, in short days, low night temperatures, large temperature conditions day and night, this environment is conducive to female flower differentiation. In winter, the sunshine time is short and the night temperature is low. Female flowers grow and develop in large quantities, and consume a large amount of photosynthetic products. The nutrients needed for vegetative growth will be insufficient, and the plants will gradually become weak, eventually forming a “flower toppingâ€.
2. Inadequate management measures to accelerate the formation of "flower topping". Many vegetable farmers do not understand the pattern of flower bud differentiation in cucumber. In order to investigate high yields, during late autumn or early winter, ethephon is used to treat cucumber seedlings and promote their differentiation into female flowers. As a result, serious "flower topping" occurred.
3. Traditional greenhouse "dry, cold" management techniques will inevitably lead to "flower topping." According to the cultivation and management under the open environment, the indoor temperature is controlled at about 28°C, and ventilation is started at 25°C. The indoor temperature is controlled below 28°C, the ground temperature cannot be raised, the night temperature is low, the female flower is more differentiated, the plant growth is weaker, and the diseases are many. To control the occurrence of diseases, reduce the water, the cucumber lacks water, the growth will be even weaker, and the formation of malignant cycle.
Second, prevention of "flower topping" occurred measures
1. Strengthen seedling management, cultivate strong seedlings, seedling age can not be too long, transplanting within 30-35 days.
2. Change the “dry and cold†management methods, increase the indoor temperature, strengthen the water and fertilizer management, and maintain the robust growth potential of the plants.
3. The growth and development of cucumber is mainly carried out in the middle of the night. In order to promote vegetative growth, the indoor temperature in the middle of the night must be appropriately increased.
4. To collect melon in advance, timely sparse fruit thinning, reduce plant load. Promote nutrient growth.
5. It is necessary to strengthen fertilizer and water management, increase the amount of watering and watering times appropriately, promote hair rooting, achieve root propulsion, and suppress the occurrence of "flower topping". Appropriately increasing the number of top dressings outside roots, especially when it was found that the plant growth began to weaken, continuous spraying, increased photosynthetic efficiency, and promoted the vegetative growth of the plants.
2. Inadequate management measures to accelerate the formation of "flower topping". Many vegetable farmers do not understand the pattern of flower bud differentiation in cucumber. In order to investigate high yields, during late autumn or early winter, ethephon is used to treat cucumber seedlings and promote their differentiation into female flowers. As a result, serious "flower topping" occurred.
3. Traditional greenhouse "dry, cold" management techniques will inevitably lead to "flower topping." According to the cultivation and management under the open environment, the indoor temperature is controlled at about 28°C, and ventilation is started at 25°C. The indoor temperature is controlled below 28°C, the ground temperature cannot be raised, the night temperature is low, the female flower is more differentiated, the plant growth is weaker, and the diseases are many. To control the occurrence of diseases, reduce the water, the cucumber lacks water, the growth will be even weaker, and the formation of malignant cycle.
Second, prevention of "flower topping" occurred measures
1. Strengthen seedling management, cultivate strong seedlings, seedling age can not be too long, transplanting within 30-35 days.
2. Change the “dry and cold†management methods, increase the indoor temperature, strengthen the water and fertilizer management, and maintain the robust growth potential of the plants.
3. The growth and development of cucumber is mainly carried out in the middle of the night. In order to promote vegetative growth, the indoor temperature in the middle of the night must be appropriately increased.
4. To collect melon in advance, timely sparse fruit thinning, reduce plant load. Promote nutrient growth.
5. It is necessary to strengthen fertilizer and water management, increase the amount of watering and watering times appropriately, promote hair rooting, achieve root propulsion, and suppress the occurrence of "flower topping". Appropriately increasing the number of top dressings outside roots, especially when it was found that the plant growth began to weaken, continuous spraying, increased photosynthetic efficiency, and promoted the vegetative growth of the plants.
3. Traditional greenhouse "dry, cold" management techniques will inevitably lead to "flower topping." According to the cultivation and management under the open environment, the indoor temperature is controlled at about 28°C, and ventilation is started at 25°C. The indoor temperature is controlled below 28°C, the ground temperature cannot be raised, the night temperature is low, the female flower is more differentiated, the plant growth is weaker, and the diseases are many. To control the occurrence of diseases, reduce the water, the cucumber lacks water, the growth will be even weaker, and the formation of malignant cycle.
Second, prevention of "flower topping" occurred measures
1. Strengthen seedling management, cultivate strong seedlings, seedling age can not be too long, transplanting within 30-35 days.
2. Change the “dry and cold†management methods, increase the indoor temperature, strengthen the water and fertilizer management, and maintain the robust growth potential of the plants.
3. The growth and development of cucumber is mainly carried out in the middle of the night. In order to promote vegetative growth, the indoor temperature in the middle of the night must be appropriately increased.
4. To collect melon in advance, timely sparse fruit thinning, reduce plant load. Promote nutrient growth.
5. It is necessary to strengthen fertilizer and water management, increase the amount of watering and watering times appropriately, promote hair rooting, achieve root propulsion, and suppress the occurrence of "flower topping". Appropriately increasing the number of top dressings outside roots, especially when it was found that the plant growth began to weaken, continuous spraying, increased photosynthetic efficiency, and promoted the vegetative growth of the plants.
Second, prevention of "flower topping" occurred measures
1. Strengthen seedling management, cultivate strong seedlings, seedling age can not be too long, transplanting within 30-35 days.
2. Change the “dry and cold†management methods, increase the indoor temperature, strengthen the water and fertilizer management, and maintain the robust growth potential of the plants.
3. The growth and development of cucumber is mainly carried out in the middle of the night. In order to promote vegetative growth, the indoor temperature in the middle of the night must be appropriately increased.
4. To collect melon in advance, timely sparse fruit thinning, reduce plant load. Promote nutrient growth.
5. It is necessary to strengthen fertilizer and water management, increase the amount of watering and watering times appropriately, promote hair rooting, achieve root propulsion, and suppress the occurrence of "flower topping". Appropriately increasing the number of top dressings outside roots, especially when it was found that the plant growth began to weaken, continuous spraying, increased photosynthetic efficiency, and promoted the vegetative growth of the plants.
1. Strengthen seedling management, cultivate strong seedlings, seedling age can not be too long, transplanting within 30-35 days.
2. Change the “dry and cold†management methods, increase the indoor temperature, strengthen the water and fertilizer management, and maintain the robust growth potential of the plants.
3. The growth and development of cucumber is mainly carried out in the middle of the night. In order to promote vegetative growth, the indoor temperature in the middle of the night must be appropriately increased.
4. To collect melon in advance, timely sparse fruit thinning, reduce plant load. Promote nutrient growth.
5. It is necessary to strengthen fertilizer and water management, increase the amount of watering and watering times appropriately, promote hair rooting, achieve root propulsion, and suppress the occurrence of "flower topping". Appropriately increasing the number of top dressings outside roots, especially when it was found that the plant growth began to weaken, continuous spraying, increased photosynthetic efficiency, and promoted the vegetative growth of the plants.
2. Change the “dry and cold†management methods, increase the indoor temperature, strengthen the water and fertilizer management, and maintain the robust growth potential of the plants.
3. The growth and development of cucumber is mainly carried out in the middle of the night. In order to promote vegetative growth, the indoor temperature in the middle of the night must be appropriately increased.
4. To collect melon in advance, timely sparse fruit thinning, reduce plant load. Promote nutrient growth.
5. It is necessary to strengthen fertilizer and water management, increase the amount of watering and watering times appropriately, promote hair rooting, achieve root propulsion, and suppress the occurrence of "flower topping". Appropriately increasing the number of top dressings outside roots, especially when it was found that the plant growth began to weaken, continuous spraying, increased photosynthetic efficiency, and promoted the vegetative growth of the plants.
3. The growth and development of cucumber is mainly carried out in the middle of the night. In order to promote vegetative growth, the indoor temperature in the middle of the night must be appropriately increased.
4. To collect melon in advance, timely sparse fruit thinning, reduce plant load. Promote nutrient growth.
5. It is necessary to strengthen fertilizer and water management, increase the amount of watering and watering times appropriately, promote hair rooting, achieve root propulsion, and suppress the occurrence of "flower topping". Appropriately increasing the number of top dressings outside roots, especially when it was found that the plant growth began to weaken, continuous spraying, increased photosynthetic efficiency, and promoted the vegetative growth of the plants.
4. To collect melon in advance, timely sparse fruit thinning, reduce plant load. Promote nutrient growth.
5. It is necessary to strengthen fertilizer and water management, increase the amount of watering and watering times appropriately, promote hair rooting, achieve root propulsion, and suppress the occurrence of "flower topping". Appropriately increasing the number of top dressings outside roots, especially when it was found that the plant growth began to weaken, continuous spraying, increased photosynthetic efficiency, and promoted the vegetative growth of the plants.
5. It is necessary to strengthen fertilizer and water management, increase the amount of watering and watering times appropriately, promote hair rooting, achieve root propulsion, and suppress the occurrence of "flower topping". Appropriately increasing the number of top dressings outside roots, especially when it was found that the plant growth began to weaken, continuous spraying, increased photosynthetic efficiency, and promoted the vegetative growth of the plants.
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