Greenhouse horticulture, in the process of industrialization of plant planting, we call it planting technology. In the case of insufficient sunlight, supplementary light in the greenhouse is inevitable. The spectral parameters of the plant lamp meet the spectral design requirements, which may not guarantee the planting effect and efficiency. , In the artificial light environment, the planting process is the core technology, and the planting process is a sufficient condition for planting in the artificial environment. Under the premise of the planting process, the spectral parameters of the plant lamp can reflect the planting effect and planting efficiency.
If the spectral parameters of the LED lamp beads packaged by any two packaging companies are the same, under the same plant canopy PPFD and the same planting process, the planting effect is the same, regardless of the brand of the lamp bead packaging company. Bio-optics is the most taboo The point is to superimpose people’s preference for lamp bead brands on spectral technology.
Plants will not respond to the lamp bead brand, but only respond to the spectral parameters of the lamp bead; people’s preference for the brand must not be superimposed on the application of the plant lamp.
Unfortunately, many plant lamp manufacturers (including beginners in plant cultivation) put too much energy on the brand of lamp beads, so that they forget the magic in the substrate and nutrients, and forget the ability to control the parameters of the planting environment. Priority, forgetting that horticulture is a complex professional discipline, entering the thinking mode of only spectral parameter theory, ignoring what is the core technology of plant planting.
Spectral technology has three principles: 1. There is no best spectrum, only the most suitable. 2. Light quantity takes precedence over light quality. 3. The same planting effect, the less spectral components, the higher the photosynthetic efficiency of the spectral design.
In the continuous development of plant lamp spectral technology, plant lamps can practice new high-efficiency spectral technology every year, that is to say, the technical cycle of spectral design to improve plant photosynthetic efficiency is less than one year, and good spectral design ultimately serves the planting cost. , Plant cultivation usually does not reflect the recognition of the performance and quality of similar industrial products to the price of the product, and more is the price as the dominant factor. For cannabis lamps, the increase in the price of lamps is not equivalent to the output and quality of plants. The output of cannabis The improvement in quality can be more easily obtained through the cultivation process, and it does not require too much investment.
The spectral parameters of grow lights can be considered from the following aspects:
1. The QE value of domestic lamp beads for plants has reached or exceeded that of foreign lamp beads, and the cost performance is excellent.
2. Select the lamp beads with the lamp bead junction voltage lower than 3.0V to reduce the power consumption.
3. Learn to reduce the driving current to obtain a high QE method, and the effect is obvious.
4. At any time, the priority of the planting process should be placed before the plant light to reduce blindness.
5. The QE of the plant lamp is greater than 2.2umol/J, and its planting effect and efficiency basically depend on the planting process, which is the thinking of experts.
6. Know how to apply the radiation heat transfer mechanism to control the PPFD of the plant canopy. This technology needs to be learned again, and its effect is much better than blindly increasing the QE value of the plant lamp.
7. The comprehensive energy-saving technology of plant lamps is better than the improvement of energy efficiency of lamps, and reducing planting costs is the development direction of plant lamps.
The plant lamp spectral technology is aimed at serving the planting process. Without the goal of the planting process, the spectral design of the plant lamp is not a technology.
