Can agricultural light complement each other achieve "1+1>2"?

[China Agricultural Machinery Industry News] Agricultural and optical complementation has been proposed for several years, but as far as the development of rural areas is concerned, it seems that the degree of "high on the top" is not so high with the people. This is contrary to the original intention of the complementation of agricultural light. Benxi was fortunate to get the result of "1 1>2", but there is also the possibility of "1 1<2" or even "1 1<1".

Can agricultural light complement each other achieve "1+1>2"?

In recent years, there have been more and more “new things” in rural areas. By combining with traditional agriculture, they have achieved “1 1>2” and added vitality to the sustainable development of rural agriculture.

Farming and light complement each other, a new term seems to be some late in the industry, because such a model has been used abroad for more than 10 years, it is a technology that combines solar photovoltaic power generation and agricultural planting to achieve three-dimensional land To increase the value-added use and build a modern agricultural comprehensive economy. Light, electricity, agriculture, the three are not a line of "蚱蜢", tied together, let the three have a relationship. Realize the integration of the industry and achieve the ideal effect of “1 1>2”.

From the perspective of the complementary nature of agricultural light, it is a general term for fishing and light complementation, forest light complementation, and agricultural greenhouse photovoltaic projects. From the principle point of view, the photosynthesis is combined with the photoelectric effect, in which photosynthesis comes from biology, photoelectric effect comes from physics, and photovoltaic agriculture is derived on the basis of the two principles.

The complementation of farming and light has been proposed for several years, but as far as the development of rural areas is concerned, it seems that the degree of affinity between the people and the people is not so high. This is contrary to the original intention of the complementation of agricultural light. Benxi was fortunate to get the result of "1 1>2", but there is also the possibility of "1 1<2" or even "1 1<1".

Then, when the agricultural light is complementary, can it achieve "1 1>2", and truly bring vitality to agriculture?

First, the people's concerns.

“Enterprises account for my farmland and only build photovoltaic power plants. Can we not plant them?”

As the basis for the survival of farmers and the basis of life, crops are also an important source of income. When a large area of ​​a company builds a power station, the farmer’s farmland becomes a “sac in the bag” of the enterprise. This is a vulnerable group, and there is no local area. This kind of worry is very natural.

In the process of building a rural light project, enterprises need to consider a number of factors, such as the site selection stage, and consider the state's policy on land: “Opinions on Supporting the Development of New Industries and New Business Formats to Promote Public Entrepreneurship and Innovation and Land Use” For photovoltaic, wind power and other projects that use unused land such as Gobi, desert, and grassland, the part of the land that does not occupy the land and does not change the surface form may be identified according to the original land type and does not change the land use. When making changes to the survey, the land is allowed to be obtained by way of leasing, etc. The two parties sign a compensation agreement and report the land to the local county-level land and resources department for the record.

With the support of national policies, with the agreement of the contract, the people do not have to worry. In addition, in some areas, agricultural projects are often combined with local poverty alleviation, so that the people can get more preferential policies.

Second, pay attention to power generation or pay attention to crops?

As an important source of income for agricultural projects, crops need to select the appropriate varieties according to local soil conditions and lighting conditions, and consider the impact of photovoltaic power plant operation period on crop yield. This requires consideration of local geographical conditions, such as climate, soil, temperature and humidity, etc., as well as the survival conditions of crops such as light, irrigation, pests, etc., planning the PV module capacity, overall layout, long-term planning and How do agriculture complement each other? In the long run, we must also consider the sales of farm products.

Third, how does the component block the sunlight on the crop yield?

We have learned about some agricultural projects, first constructing the power station and planting crops under the brains. This will have the effect of late component blocking sunlight on the crop yield underneath.

Therefore, as we said above, we must plan the power station construction and crop planting before the construction of the power station. Take the agricultural greenhouse as an example to determine the agricultural greenhouse area, the agricultural product variety, the fertilizer and water source during the growth period of the crop, and finally calculate the crop. Economic benefits. Also consider lighting and temperature factors, such as high temperature in summer, many types of vegetables can not grow normally, and photovoltaic agricultural greenhouses like a spectrometer added outside the agricultural greenhouse, can isolate the red line, prevent excessive heat The role of the red, in the winter and the night can prevent the red light in the greenhouse from radiating outward, which has a thermal insulation effect.

At present, although the complementary of agricultural light has such concerns for the common people, such as high investment in the early stage and slow return; the operation and maintenance is difficult in the later stage; the module will have a certain degree of attenuation; the inverter will fail; the support will exist. Rust and aging, etc. This is also an important factor that can not be widely used in rural areas.

However, from the theoretical level and practical exploration, the combination of photovoltaic and agriculture is regarded as a promising industrial integration, from photovoltaic to agriculture, from power generation to agricultural products, cross-border integration, comprehensive utilization of resources, and its The business model of replication is optimistic. At the same time, the complementary of agricultural light is of great significance to China's agricultural transformation, and is also regarded as an effective measure for the photovoltaic industry to highlight the industrial dilemma.

In the long run, the complementary agriculture and light can realize the beautiful vision of “1 1>2”, which is of great significance to China's agricultural transformation, and also accelerates the pace of the photovoltaic industry out of the predicament.

(Original title: Can agricultural and optical complementarity really bring vitality to agriculture?)