LED Grow Light and Detailed Vegetable Hydroponic Technology

The productivity is much higher than traditional agriculture planting when hydroponic plant factory use LED grow light in the growing system.  because growth environment can be completely controlled 365 days a year.  such farms can be cultivated every day and not affected by the weather and the season. farms can supply reliable and stable high-quality products year round. this production mode is completely deviated from the works of agriculture for centuries. and the agricultural products do not contain harmful materials such as pesticide, herbicide ,fungicide and  insecticide etc. 

In hydroponic factory,generally vegetable grow beds are laid out tidily under led grow light. The mature vegetables typically make their way into high-end restaurants and food stores in city.  hydroponic system aim at transforming agriculture using a series of  technologies from high-efficiency lighting to growing system monitoring software and so on.

hydroponics is a kind of soilless culture method , relying on physical conditions such as temperature, humidity, light intensity, CO2 concentration and so on provided by hydroponic factory, making most roots of vegetables grow in nutrient solution and providing water, nutrient and oxygen only through nutrient solution. It is a relatively advanced soilless cultivation form . In recent years, the advent of hydroponic factory and the application of vegetable hydroponic technology make vegetable production enter a new period.  not only this cultivation method greatly improves the quality of vegetables and increases the production of vegetables, but also the vegetables that are produced are green and pollution-free fresh food which are loved very much  by people.  promoting vegetable hydroponic technology is of great significance to the development of ecological agriculture. hydroponic vegetables can be continuously produced. its development has an important practical significance on solving the short supply problem of local off-season vegetables .  at present,  hydroponic technology is more and more mature and hydroponic planting probably blossom everywhere  . 

traditional vegetable cultivation techniques are easily affected by external environment. during the growth of vegetable, frequent field operations and multiple fertilization cause a serious influence to the ecological environment .the application of vegetable hydroponic  technology has changed that. 

it has the following advantages:

1. it can regulate and control the temperature ,humidity, lighting of plant factory so as to ease the impacts of environmental factors such as season and climate.

2. it supports continuous planting, you can crop vegetables many times  in a year .

3.it helps to save lots of links such as intertillage, re-earth, weeding and soil disinfection etc , reduce the labor cost , lower labor intensity of farmers and improve the labor productivity because of simple operation.

4. shorten the growth cycle of the vegetables. vegetables are supplied with a lot of nutrient solution rich in nutrients ,fully meet the actual demand for vegetable growth .so vegetables are growing in an optimal speed.

5. no pesticides make the produced vegetables taste delicious. these vegetables are pollution-free and nuisanceless green agriculture food and very welcomed by the consumers. 

It can be seen that compared with the traditional soil cultivation technology, the hydroponic technology has obvious advantages and a very good development prospect. so it is a new cropping pattern that worth promoting vigorously. 

 establish a hydroponic factory

1.construct a perfect hydroponic vegetable cultivation system.

 2.purchase the corresponding matched facilities like led grow lights and others 

3.workers need to be familiar with the growing habits of vegetables and have a good understanding of mechanical, electronic and automation technologies.

4. workers need to master the cultivation technology, facility cultivation requirements and production management measures of  hydroponic vegetables

In terms of equipment, the initial investment is higher; As for artificial skills, workers need continuous learning ,advancing and growing  in the later planting

Common methods and the structure of cultivation system

According to the current hydroponic factory, there are four common hydroponic methods-deep liquid flow method, nutrient liquid membrane method, floating plate capillary method and dynamic floating root method. take deep liquid flow method for example, this method is to adopt specific method to make vegetables suspend in the liquid surface of nutrient solution. the roots of the vegetables need to be immersed in nutrient solution about 10 cm under the liquid level . and then the pump will drive the nutrient solution to circulate. This can significantly increase the oxygen content of the nutrient solution, allowing vegetable roots to breathe easily.

the structure of this hydroponic system mainly includes four parts , that are liquid storage tank, cultivation trough, planting board and nutrient solution circulation system. this cultivation system can provide a good growing environment for the plants.even if a sudden power failure leads to system stagnation ,the normal growth of the plants won't be  affected. it is more in line with the actual needs of vegetable cultivation in the new period.

Cultivation facility requirements

as an important structure of nutrient solution storage,liquid storage tank generally is built with brick and cement,about 20 cm in thickness . in order to prevent the leakage of liquid storage tank , liquid storage tank needs to use some waterproof materials to reinforce waterproofing property. besides, it should take covering treatment to avoid trash and sundry into the liquid storage tank and pollute nutrient solution.

cultivation trough is the major structure of hydroponic vegetable cultivation system. before constructing cultivation trough , 5cm thick river sand should be laid at the bottom of trough, and then pouring concrete as groundwork. the position of cultivation groove should be as stable as possible. If the surrounding is full of soft soil foundation, when pouring concrete ,rebars should be used to reinforce. the bottom and inner wall of groove should add anti - leakage material.

Most planting board are made of polystyrene foam. In general, the denser material is , the higher quality planting board is. The length and width of planting board should be slightly larger than the cultivation trough. when punching planting board, it need to be based on the planting density of vegetables.

The nutrient solution circulation system has two functions: one is to supply nutrient solution and transfer it to the cultivation trough through refueling device. Note that ,the liquid level should not exceed 8cm to ensure the plant roots can smoothly absorb the nutrient solution. The second is to use the water pump to draw out the nutrient solution higher than the drain. After the drain, the nutrient solution will flow into the liquid storage tank again, which promotes the circulation of nutrient solution.

nutrient solution dispensing

To grow vegetable well and achieve the purpose of saving the cost of vegetables cultivation. The proportion of nitrogen and potassium in the nutrient solution should be strictly controlled. the dosage not only needs to meet the requirements of vegetable growth,but also need to reduce the loss of fertilizer as much as possible. plus ,the pH of nutrient solution is very important . so before using it should be tested. the PH within the reasonable range can be used and the dosage of nutrient solution should be adjusted timely based on the growth of vegetables. appropriate seedling temperature of vegetables is about  20℃. During seedling cultivation, a small amount of nutrient solution can be poured into the seedling plate. after the nutrient solution should be sprayed once every morning and evening to keep moist until the seeds sprout.  Shading is required before germination .and light should be appropriately increased after germination. When the buds grow about 2 -3 leaves, they can be transferred to the planting board for cultivation.

transplant to the planting board 

Before vegetable transplant to the planting board , the roots of vegetables should be cleaned with clean water and the redundant roots should be cut off . and then sterilize the roots -soaking the vegetable roots into hydroponic dedicated disinfectant for 15~20 minutes. finally rinse roots with clean water. During transplanting, seedlings and planting holes should correspond one by one. after the seedlings are inserted,the planting board should be put into the cultivation trough immediately.

daily management

after transplanting ,daily management is very simple. one is to strengthen the regulation and control of  environmental temperature ,humidity and light. another is to check whether the circulatory system can run properly . during the whole vegetables growth, nutrient solution tank should replenish nutrient solution once .The ambient temperature should be kept at 15-30℃. Humidity should be monitored by device and timely adjust . sunshade net should be used reasonably depending on whether it is required or not . in hydroponic factory, the occurrence of vegetable diseases and insect pests is relatively minor. It's best not to use pesticides.

harvest

 generally, vegetables grown by using hydroponic technology can be harvested once a month. after harvest, the planting board should be taken out of cultivation trough and sweep the roots and rotten leaves of vegetables. and then discharge nutrient solution from the cultivation trough . all cultivation trough  need to be cleaned thoroughly before they are put into use again.