Greenhouse planting uses plant growth lights

Vegetables can be divided into long, medium and short day vegetables according to the length of sunshine. Generally speaking, long day vegetables need longer lighting time. If it is cloudy and rainy, it may need to fill light [Fill light is usually located in or near the axis line of the camera, the light source for the overall illumination of the subject, whose purpose is to make the shadow details can get proper exposure.

Plant growth supplementary light lamp is designed according to the wavelength range of light required by plant growth (mainly red and blue light) and illuminance required. Different proportions of three primary color phosphor are used to adjust the light suitable for the spectral energy distribution required by plant growth. The rational use of this kind of light can improve and prolong the lighting conditions and time of plant growth, and speed up crops [crops, referring to oil crops, food crops, cash crops, etc.]. The seedling process and shorten the growth cycle of crops.

The role of plant growth lamps in vegetable cultivation

First, Led Grow Lighting effect

1. It can shorten the seedling rearing time by up to 50%.

2. It can reduce the occurrence of diseases and insect pests and the amount of deformed fruit.

3. Crops can bloom, bear fruit or mature 15 to 20 days earlier.

4. The yield of vegetables can be increased by more than 20%, and the brightness of flowers can be increased.

Two, vegetables sunshine time

Sunshine is the time of day when the sun shines. Crops, especially vegetables, flower bud differentiation, bolting flowering, fruiting, tuber, tuber, bulb formation, light duration plays a decisive role. Different vegetable varieties have different requirements on sunshine duration. The popularization and use of fill light lamp provides the possibility to play the potential of crop yield increase, meet the light demand of different sunshine crops (especially medium and long sunshine crops) and reduce the influence of rainy weather on crop yield and growth process.

The sunshine time requirements of main vegetable varieties are introduced as follows. Readers can refer to these data to adjust the crop light filling time according to the local sunshine time of the day, so as to maximize the benefit of planting vegetables.

According to the different length of sunshine demand of vegetables, they can be divided into long day vegetables, medium day vegetables and short day vegetables.

Long sunshine vegetables are: Chinese cabbage, cabbage, carrot, tomato, celery, spinach, lettuce, green onion, garlic and so on. These vegetables require 14 to 16 hours of sunlight a day.

The main vegetables in sunshine are: string bean, cucumber, pepper, eggplant, vegetable soybean early varieties, etc. These vegetables require 11 to 13 hours of sunlight a day.

Short day vegetables are mainly: black-eyed bean, late soybean varieties, bean, lentil, chrysanthemum chrysanthemum, amaranth and so on. These vegetables require 9 to 12 hours of sunlight a day.