The cultivation technology of Isatis root

The Banangen plants are 30-35 cm tall. The root medicine was Banlangen, and the leaf medicine was Daqingye.

The growth habits are not strict with the soil, and normal soil can be planted in the cold and warm areas. Fear of water, hi sunshine. Can work continuously.

Cultivation management uses seeds for propagation, spring sowing and summer sowing. Spring sowing: Between March and May, choose a well-drained, loose and fertile soil with 18-20 cm spacing and 15 cm deep ditch. Spread the seed evenly into the ditch, cover the soil, step on the foot again, or push it twice with the big clam, and rinse it with water. Generally about 18 °C, 7-10 days emergence. Summer sowing: Between June and July, the method is the same as spring sowing and emerges in 4-5 days.

Field management seedling height about 6 cm Dingmiao, plant spacing of 5 cm or so, small to full-grain section, each acre can be followed by 15 kg of ammonium nitrate, 15 kg of superphosphate, watered after the buried soil, the summer solstice small festival leaves, cutting After 4-5 days of leaf watering, 10 kg of urea can be traced.

Harvesting and Processing Spring sowing Banlangen cuts the leaves once a day and cuts the leaves from the base. It is better to dry in one or two days. Cold dew cream to plan roots, dried and used as medicine. Summer sowing in the plane when cutting leaves dry, planing root season.

LED Lighting

Everything You Need To Know About LED Lighting


LEDs are a simple invention with huge potential to change the lighting industry for the better. Don`t know much about them? Here are three big things you need to know to get your feet under you:
1.What Does LED Stand For?

2.LED stands for light-emitting diode.


A diode is an electrical device or component with two electrodes (an anode and a cathode) through which electricity flows - characteristically in only one direction (in through the anode and out through the cathode). Diodes are generally made from semi-conductive materials such as silicon or selenium - substances that conduct electricity in some circumstances and not in others (e.g. at certain voltages, current levels, or light intensities).


1.What is LED Lighting?
2.A light-emitting diode is a semiconductor device that emits visible light when an electrical current passes through it. It is essentially the opposite of a photo-voltaic cell (a device that converts visible light into electrical current).
Did You Know? There is a similar device to an LED called an IRED (Infrared Emitting Diode). Instead of visible light, IRED devices emit IR energy when electrical current is run through them.

1.How Do LED Lights Work?

2.It`s really simple actually, and very cheap to produce, which is why there was so much excitement when LED lights were first invented!


The Technical Details: LED lights are composed of two types of semiconducting material (a p-type and an n-type). Both the p-type and n-type materials, also called extringent materials, have been doped (dipped into a substance called a [doping agent") so as to slightly alter their electrical properties from their pure, unaltered, or [intrinsic" form (i-type).
The p-type and n-type materials are created by introducing the original material to atoms of another element. These new atoms replace some of the previously existing atoms and in so doing, alter the physical and chemical structure. The p-type materials are created using elements (such as boron) that have less valence electrons than the intrinsic material (oftentimes silicon). The n-type materials are created using elements (such as phosphorus) that have more valence electrons that the intrinsic material (oftentimes silicon). The net effect is the creation of a p-n junction with interesting and useful properties for electronic applications. What those properties are exactly depends mostly on the external voltage applied to the circuit (if any) and the direction of current (i.e. which side, the p-type or the n-type, is connected to the positive terminal and which is connected to the negative terminal).
Application of the Technical Details to LED Lighting:

When a light-emitting diode (LED) has a voltage source connected with the positive side on the anode and the negative side on the cathode, current will flow (and light will be emitted, a condition known as forward bias). If the positive and negative ends of the voltage source were inversely connected (positive to the cathode and negative to the anode), current would not flow (a condition known as reverse bias). Forward bias allows current to flow through the LED and in so doing, emits light. Reverse bias prevents current from flowing through the LED (at least up until a certain point where it is unable to keep the current at bay - known as the peak inverse voltage - a point that if reached, will irreversibly damage the device).


While all of this might sound incredibly technical, the important takeaway for consumers is that LEDs have changed the lighting landscape for the better, and the practical applications of this technology are almost limitless. To learn about why LEDs might be a good fit for your business.


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