When spring arrives, the maximum temperature in the outside world rises. When the weather is fine, the greenhouse maintains a high temperature and the plants grow very quickly. At this moment, the sharp pepper in the greenhouse is easy to be uneven, and the plant growth is greatly different. Even one-third of the plants in one row are more than twenty centimeters taller than other plants, and there is a clear trend of prosperous growth. Some plants are shorter because of early fruit setting and weak root systems. In the spring, many farmers will have such problems in their sheds.
The reason for the prosperous growth is that on the one hand, the weather is fine, and the shed keeps a high temperature. On the other hand, this period is the expansion period of the sharp pepper fruit, and the water and fertilizer supply is relatively sufficient. When the fruit set on the plant is small or removed suddenly The plant burden suddenly abated, and nutrients increased the supply of stems and leaves, resulting in elongation between the nodes and large, green leaves growing vigorously. Prosperous plants that are very prosperous have a great influence on flowering and fruit setting, and are easily trapped in a vicious cycle. Those low plants, because of the shelter of other plants and the competition of soil nutrients, are in short supply of nutrients and growth is always slow. It is difficult to make the plant growth in the shed consistent.
The uneven growth of plants has a great impact on the overall yield. Therefore, as the temperature rises, it should pay more attention to controlling the growth of pepper.
First of all, prosperous plants should be controlled individually. Farmers can use 500-fold booster or 2,000 times more love, spraying small plants with a small watering can, inhibiting their growth. If the plants fall seriously, use 2% naphthalene acetic acid 6000 times spray. It should be noted that it is best to use a small watering can to point to avoid a large number of agents falling on other plants.
Second, adjust the plant to set fruit. For plants with prosperous tendencies, adequate fruit should be maintained to ensure the balance between reproductive growth and vegetative growth. For low plants, fruit should be kept as little as possible to promote vegetative growth.
Again, increase the exposure time and increase the temperature difference between day and night. In the afternoon, it is necessary to postpone the shed, increase the illumination in the shed, and increase the temperature difference between day and night to reduce the consumption of organic matter at night and avoid the vegetative growth of plants. During the day, the temperature is controlled at about 25°C, and it drops to 13°C at night. The amount of water and fertilizer should be adequate, and the amount of water and fertilizer should not be increased in order to enlarge the fruit, so as to ensure sufficient nutrients in the soil.
In addition, closed fields and poor air and light transmission are also factors that cause prosperous growth. Therefore, pruning should be strengthened to remove redundant side branches and old and sick leaves, especially internal litchi, and improve ventilation and light transmission conditions. Prosperous.
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