Prevention of Cucumber Psychology
2020-01-09 15:06:32
Cucumber Papaya Symptoms:
Pomegranate refers to the fact that female flowers cannot grow into melons after they are formed, but it gradually grows yellow and wilting and falls off. Such female flowers or young melons are also called physiological wilting fruits or aborted fruits. Pomelo phenomenon is a common problem in the production of cucumbers, especially cucumbers cultivated in protected areas such as plastic greenhouses. If they are not properly managed, the rate of melons can even reach over 50%, seriously affecting the yield.
Cause analysis:
Psychosis is caused by insufficient nutrients or competition between organs for nutrients. Under adverse conditions such as low temperature and low light, there are many new varieties of cucumbers. It is almost impossible to grow each Guainian into a commercial melon. Therefore, within a certain limit, the melons are normal and are the result of self-regulation of the plants themselves. . However, if there is only a small amount of melons, it will be a physical disease. In the following cases, the plant will have a large number of abnormal melons.
Control methods:
1 pollination. A small number of varieties due to the poor ability of parthenocarpy can be pollinated by artificial pollination, bees and other measures in the greenhouse, stimulate ovary enlargement, reduce the rate of pectin, which can generally reduce the rate of pectin to about 70%.
2 enhanced lighting. As long as the outdoor temperature is not lower than -20°C, even in cloudy weather, the curtain should be opened shortly before and after noon so that the plants can receive scattered light. When conditions permit, agricultural infrared lamps can be installed to supplement light and heat.
3 foliar spray fertilizer and hormone treatment. With 1 % potassium dihydrogen phosphate plus 0.4% glucose plus 0.4% urea, and 15.5 mg/L of Guagua Ling, strong guaranty spray foliar, but also very effective. In addition, 100 mg/kg gibberellin can be sprayed to promote the growth of melon strips. You can also use female garcinia flower or spray flowers, the method see the instructions for use. It is also possible to spray plants or flowers with bulking agents.
4 temperature control. If there is a large amount of melons in the late winter and spring, the temperature of the greenhouse should be controlled from low to high, during the sunny day, 23 to 25°C, no more than 28°C, and nighttime 10 to 12°C or lower. When the temperature is too high, ventilation management should be strengthened to keep the greenhouse temperature within the range suitable for normal growth and development of cucumbers.
If it is a low-temperature, deep-season winter season due to low temperature, it should increase the temperature as much as possible, especially the soil temperature. The minimum soil temperature should not be lower than 10°C, and generally should be above 14°C. The improvement of the ground temperature does not necessarily depend on the superiority of the greenhouse structure or the complete dependence on the fine weather. The vegetable cultivators can bury corn stalks between rows or spread maize stalks between rows in the time of planting, and use the heat generated by the decomposition of corn stalks to increase the ground temperature. , The effect is very good, this is my research in the process of editing software in the countryside, recommend this technology to vegetable farmers, the effect is very good.
5 Coordinate the relationship between vegetative growth and reproductive growth. In view of the lack of timely harvesting and "falling", causing the growth of disorders caused by the melon phenomenon, should strengthen the management of fertilizer and water, timely mining melon.
There is also a kind of melon that is caused by leggy because it is harvested too frequently. There is no melon that grows vigorously on the plants. Most nutrients are used to support the growth of stems and leaves. As a result, the stems and leaves grow excessively, and the plants take another metabolism. By way of nutrition, no longer provides for the growth of young melons. The best way to prevent it is to pay attention to the harvesting criteria. We must harvest the crops in time, and let the plants keep at least one melon that grows vigorously. If there is a lack of water and fertilizer, we must increase the amount of watered fertilizer.
Pomegranate refers to the fact that female flowers cannot grow into melons after they are formed, but it gradually grows yellow and wilting and falls off. Such female flowers or young melons are also called physiological wilting fruits or aborted fruits. Pomelo phenomenon is a common problem in the production of cucumbers, especially cucumbers cultivated in protected areas such as plastic greenhouses. If they are not properly managed, the rate of melons can even reach over 50%, seriously affecting the yield.
Cause analysis:
Psychosis is caused by insufficient nutrients or competition between organs for nutrients. Under adverse conditions such as low temperature and low light, there are many new varieties of cucumbers. It is almost impossible to grow each Guainian into a commercial melon. Therefore, within a certain limit, the melons are normal and are the result of self-regulation of the plants themselves. . However, if there is only a small amount of melons, it will be a physical disease. In the following cases, the plant will have a large number of abnormal melons.
Control methods:
1 pollination. A small number of varieties due to the poor ability of parthenocarpy can be pollinated by artificial pollination, bees and other measures in the greenhouse, stimulate ovary enlargement, reduce the rate of pectin, which can generally reduce the rate of pectin to about 70%.
2 enhanced lighting. As long as the outdoor temperature is not lower than -20°C, even in cloudy weather, the curtain should be opened shortly before and after noon so that the plants can receive scattered light. When conditions permit, agricultural infrared lamps can be installed to supplement light and heat.
3 foliar spray fertilizer and hormone treatment. With 1 % potassium dihydrogen phosphate plus 0.4% glucose plus 0.4% urea, and 15.5 mg/L of Guagua Ling, strong guaranty spray foliar, but also very effective. In addition, 100 mg/kg gibberellin can be sprayed to promote the growth of melon strips. You can also use female garcinia flower or spray flowers, the method see the instructions for use. It is also possible to spray plants or flowers with bulking agents.
4 temperature control. If there is a large amount of melons in the late winter and spring, the temperature of the greenhouse should be controlled from low to high, during the sunny day, 23 to 25°C, no more than 28°C, and nighttime 10 to 12°C or lower. When the temperature is too high, ventilation management should be strengthened to keep the greenhouse temperature within the range suitable for normal growth and development of cucumbers.
If it is a low-temperature, deep-season winter season due to low temperature, it should increase the temperature as much as possible, especially the soil temperature. The minimum soil temperature should not be lower than 10°C, and generally should be above 14°C. The improvement of the ground temperature does not necessarily depend on the superiority of the greenhouse structure or the complete dependence on the fine weather. The vegetable cultivators can bury corn stalks between rows or spread maize stalks between rows in the time of planting, and use the heat generated by the decomposition of corn stalks to increase the ground temperature. , The effect is very good, this is my research in the process of editing software in the countryside, recommend this technology to vegetable farmers, the effect is very good.
5 Coordinate the relationship between vegetative growth and reproductive growth. In view of the lack of timely harvesting and "falling", causing the growth of disorders caused by the melon phenomenon, should strengthen the management of fertilizer and water, timely mining melon.
There is also a kind of melon that is caused by leggy because it is harvested too frequently. There is no melon that grows vigorously on the plants. Most nutrients are used to support the growth of stems and leaves. As a result, the stems and leaves grow excessively, and the plants take another metabolism. By way of nutrition, no longer provides for the growth of young melons. The best way to prevent it is to pay attention to the harvesting criteria. We must harvest the crops in time, and let the plants keep at least one melon that grows vigorously. If there is a lack of water and fertilizer, we must increase the amount of watered fertilizer.
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