Crop plants themselves are chosen based lights , led grow lights using the ultimate aim is to grow better crops , so choose plants need light lamps must first understand the characteristics of the crop , either seeds or plants . 1, the seeds need light characteristic Many seed germination are required to exhibit different optical properties . In some plants the seeds under light matt can germinate , but does not affect its germination rate, such as wheat, sunflower , peas , etc. ; some seed hi light , no light in the case of serious impact on germination rate , and in the light under germinate well, such as high straight , tobacco , long tooth grass, Tanabe grass, black grass , etc. ; some are too light seeds in dark circumstances will exhibit good germination rate , such as dry grass head , Mandolin flower, cockscomb , looking vegetables , onions, although silk and the like. For neutral seeds and hi light seeds, from a qualitative point of view, light , red and blue can promote seed germination , red also has an effective function of seeds to break dormancy . 2 , the optical properties of the seedling stage need Related seedling leaf photosynthetic organs , such as has not been fully developed, this time a major role is the role of the signal light , guiding light to build the plant morphology , while inducing a variety of plant material and internal transport and synthetic hormones by light quality to achieve the purpose of inducing seedlings . Optical properties need to spend early During this period the plants need plenty of light , which is formed during the light shape , good shape for the light crop yield and quality are very important . Root length and stout extent , the size of the leaf area , stem thickness and length are closely related to photosynthesis in plants , can also be induced by light, to reach the appropriate form, thereby improving yield and quality of crops. For non- perverted with some leaves or stems of edible parts of vegetables , the substance and how much of these substances contained in vegetables during this period , are closely related to the quality of vegetables , such as most of the leafy vegetables contain nitrates , during cooking it will be converted into nitrites , this substance is harmful to humans . There experiments show that leafy vegetables contained in the yellow light irradiation significantly reduces nitrate . 3, the flowering period required optical properties Flowering period required optical properties mainly in light quality , light intensity and photoperiod these three areas. From the light quality , the plant lights the main consideration is the choice of plant lights light quality composition and proportion, such as red light can induce early flowering , blue can extend the flowering period and so on. Light intensity illumination and flowering plants to the light intensity according to different requirements of different plants can be divided into positive and negative plants, shade plants required light intensity over the sun plants is much lower , the light is too strong it will affect flowering , for flowers dioecious plants will affect the proportion of male and female flowers . Photoperiodic flowering of plants is very important , plants can be divided into long sunshine , the sunshine and the short-day , long exposure time too short can cause even lead to prolonged flowering bloom . 4 , to be strong optical properties of the In addition to the need for adequate seed of light intensity , the light quality induction is essential. Blu-ray and nitrogen metabolism in plants is related to the carbohydrate metabolism of red , whereas the yellow leaf can effectively reduce nitrate levels . 5 , select?led grow lighting? Understanding the characteristics of plants need light after going to need light based on the characteristics of the plant grow light selection. Light intensity and light quality from the start , first light quality , choose the right light quality composition and proportion ; followed by light intensity , light intensity is greater than the plant lights light compensation point of the plant. Lighting choices will have to determine the actual situation and the different cultivation methods of cultivation facilities .
Best led grow light Dendrobium greenhouse cultivation techniques: First, the light: the native environment are generally in the shade and shade . Environment requires moderate shading , light intensity around 20000Lux. Second, the temperature: stop growing below 5 ?, began to sleep. When the temperature is too low , you should pay attention to frost damage , it is best kept above 0 ?. High temperature , about 35 ? will stop growing, the optimum growth temperature is about 25 ? ~ 30 ?. Third, the matrix : should adopt good ventilation, drainage and good matrix as a material . General recommendations blue stone + peat + bark particles mixed materials . However, due to mass production , the cost is relatively high, the bark can also be used as a single matrix . Fourth, Humidity: with hygrometer, best to keep the humidity above 60% , when the rainy weather , humidity above 90% should enhance ventilation to prevent bacterial , fungal diseases occur. Fifth, water ways and water : ground water spray should be less drenching . It normally takes longer isochronous stromal drenching . Water should be biased weak acid , conditional, water softener PH value should be around 6.0. Six Ventilation: ” The ventilation Portland .” The circulation of air is very important, but also can reduce the incidence of disease. Air circulation is also just as important within the matrix of the root , so we recommend use granular material , and water must be drenched , fresh air into the matrix the . Seven fertilization : Use N: P: K is 20:20:20 and add trace elements compound fertilizer . Thin manure handling facilities , fertilizer must not re- use , otherwise it will cause fertilizer damage . Every spring when germination can also be applied as a base fertilizer slow release fertilizer.
2013 best selling 675w cob led grow light for hydroponics with patent reflective cup + 6 bands spectrum + 3 years warranty
vLED type:9x25x3w chip on board
vRefletive cup:90 degree
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vPlug:US / EU / UK / AU
vPackage list:1pcs-led grow light & power cord&hangingkit