Science and technology help photovoltaic greenhouse "change face", new eco-agricultural income model

Nowadays, people can eat fresh and delicious out-of-season fruits and vegetables in cold winter, and greenhouses naturally contribute. In many people's understanding, greenhouse should be the product of modern scientific progress. However, as early as 2000 years ago, ancient people were able to cultivate a variety of vegetables with certain protective facilities. With the development of the times, agricultural greenhouses have long been transformed from original warm houses into photovoltaic greenhouses, opening up a broader road for green growth and characteristic development of agriculture. Today, let's experience the great changes that science and technology have brought to agriculture in a greenhouse "crossing journey".

The greenhouse has been for thousands of years, and you sing and I go on stage

China is one of the countries with the earliest greenhouse cultivation origin in the world. It has a long history of vegetable cultivation by using protective facilities, which is recorded in Han Shu. Therefore, there were some simple facilities in ancient China to cultivate out-of-season crops for people to enjoy. In Europe in the third century AD, the ancient Roman emperor Tiberius, who loved to eat snake melons all year round, planted snake melons in a wooden box filled with soil after the end of its normal growing season, and installed mica sheets for the room, which allowed sunlight to penetrate into the room and maintained the temperature of the room. It seems that the principle of planting snake melon at that time is basically the same as that of modern greenhouse.

The history of scientific and technological progress of greenhouse is also a history of research and exploration of greenhouse heating equipment. The Romans built pipes under the floor of greenhouses to transfer heat, and the French burned dung to heat them. Similar to it is the Chinese Ming and Qing Dynasties vertical wall open paper window fire Xuan greenhouse.

Europe, on the other hand, began to use the heat of solar radiation to promote greenhouse warming, starting with the large-scale application of glass in Britain in 1851. Glass greenhouse energy-saving environmental protection and easy ventilation and humidity is the reason why it is sought after, along with the progress of production technology, greenhouse construction into a real golden age, and left many models for future generations. Modern greenhouses in China did not start until the 1950s, and large-scale glass greenhouses of roof type were built in North China. The development history of greenhouse in China and the West is the history of you singing and stopping me. In the development of thousands of years, it has gradually formed a modern characteristic agricultural system represented by specialization, intensification and scale.

Science and technology clever face change, photovoltaic greenhouse opens new poem

In the process of modern agricultural development, science and technology investment accounts for more and more proportion of total agricultural investment, and the effect of agricultural industry development brought by science and technology development is more and more remarkable. The traditional greenhouse in the development process of continuous application of various technological innovations brought about by the transformation, thus pushing the development of agricultural industry to a historical peak, photovoltaic greenhouse is another successful greenhouse development "face".

Photovoltaic agricultural greenhouse is a greenhouse integrating solar photovoltaic power generation, intelligent temperature control system and modern high-tech planting. The greenhouse is covered with solar photovoltaic modules, which can meet the lighting requirements of the whole greenhouse crops while ensuring solar photovoltaic power generation, which can not only save cultivated land, alleviate the contradiction between people and land, create clean energy, but also support the irrigation system of the greenhouse, supplement light for plants, solve the heating requirements of the greenhouse in winter, provide greenhouse temperature and promote the rapid growth of crops.

In the practice of combining photovoltaic and agriculture, photovoltaic agricultural greenhouses use solar thin films as new covering materials to carry out construction modes according to local conditions in various modes, and to ensure various functions of greenhouses to the maximum extent. Among them, Hanergy, the world's leading thin film solar manufacturer, has been at the forefront of photovoltaic agricultural greenhouse construction through continuous innovation of its own technology. Laminated safety glass of no more than 5mm ensures that the transmittance will not decay for 20 years, and it can also ensure better power generation efficiency under high temperature and high humidity conditions. At the same time, in the classification of light, Hanergy really achieved "take what I use." Uniform red and infrared light transmission ability, to ensure the growth of most cash crops, to avoid the wavy growth of crops; most insects compound eyes can distinguish color, for short-band blue, green, yellow light projection is sensitive, but for red light invisible, so the use of opaque violet to yellow light segment of thin film solar glass, can play an insect control effect through ecological methods, reduce the worry of pests. At the same time, it effectively isolates ultraviolet rays and reduces the occurrence of plant diseases. The advantages and disadvantages of the film make the greenhouse more practical and add a new guarantee for agricultural development. Science and technology have helped greenhouses to achieve "face change" and have also created a new income model for ecological agriculture.