Academic
The importance of regulating plant loads in greenhouse hydroponics
作者: 时间: 2024-07-26
In terms of the consumption of assimilation products, we can distinguish the size of the "library" and the vitality of "library". In vegetable crops, the size of the "library" depends on the number of fruits/m2. For cut flowers and potted plants, the number of plants/m2 and the ratio of the number of flower buds to the plants. Among the rest of the book below, the size of the "library" is called "plant load".
The consumption of assimilation products is determined by the plant load (the size of the library) and the temperature (the activity of the library). Less plant loads (rectangular right hand) allow higher temperatures to maintain evenly.
The figure above shows that the consumption of assimilation products is determined by the plant load (the size of the library) and the temperature (the activity of the library). When the plant load is high, the temperature should be low, and vice versa.
The same consumption can be achieved through lower plant loads and high temperatures. Several advantages:
1. It is easier to maintain the correct temperature/light balance, because according to the fluctuations of light and outdoor temperature, there is more room for adjusting the temperature.
2. Compared with the high load of the plant, the combination of weak light and high outdoor temperature can be better managed. This means that production, fruit and quality are less, and plants are easier to maintain health and vitality.
3. The lower plant load allows the temperature to reach a higher value on a sunny day. As we saw before, the temperature increased after ventilation, and at the same time, the CO2 concentration in the greenhouse and the high humidity were maintained, which would promote photosynthesis. During the sunset, more assimilation products were produced, which may have higher output and better quality.
4. In this way, lower plant loads enable the cultivation into a positive cycle, thereby achieving better results, not like high load plants that cause negative circulation. It illustrates the importance of controlling the load of the plant
The picture above shows how the plant load (red line) of tomato crops is planned according to the accumulation curve (yellow) of different seasons. You can monitor the actual plant load to prevent it from becoming too high or too low to optimize the balance of the plant.
Article Source: Ye Caixia Technology
The consumption of assimilation products is determined by the plant load (the size of the library) and the temperature (the activity of the library). Less plant loads (rectangular right hand) allow higher temperatures to maintain evenly.
The figure above shows that the consumption of assimilation products is determined by the plant load (the size of the library) and the temperature (the activity of the library). When the plant load is high, the temperature should be low, and vice versa.
The same consumption can be achieved through lower plant loads and high temperatures. Several advantages:
1. It is easier to maintain the correct temperature/light balance, because according to the fluctuations of light and outdoor temperature, there is more room for adjusting the temperature.
2. Compared with the high load of the plant, the combination of weak light and high outdoor temperature can be better managed. This means that production, fruit and quality are less, and plants are easier to maintain health and vitality.
3. The lower plant load allows the temperature to reach a higher value on a sunny day. As we saw before, the temperature increased after ventilation, and at the same time, the CO2 concentration in the greenhouse and the high humidity were maintained, which would promote photosynthesis. During the sunset, more assimilation products were produced, which may have higher output and better quality.
4. In this way, lower plant loads enable the cultivation into a positive cycle, thereby achieving better results, not like high load plants that cause negative circulation. It illustrates the importance of controlling the load of the plant
The picture above shows how the plant load (red line) of tomato crops is planned according to the accumulation curve (yellow) of different seasons. You can monitor the actual plant load to prevent it from becoming too high or too low to optimize the balance of the plant.
Article Source: Ye Caixia Technology