What is four in one agriculture and the impact of the four in one agroecological model

The "four-in-one" is the northern rural energy ecological model, which is a high-yield, efficient, high-quality, ecological and safe agricultural production model developed by scientific researchers on the basis of mass practice. Based on the principles of ecology, biology, economics and systems engineering, based on land resources, powered by solar energy and linked by biogas, it combines biogas digesters, livestock (poultry) houses, toilets and solar greenhouses to form a four-in-one comprehensive utilization system, so as to realize the synchronization of gas production and fertilizer accumulation, planting and breeding at the same time, and a virtuous cycle of energy flow and logistics, and become a high-yield, high-quality and efficient agricultural production mode combining garden economy and ecological agriculture.

Fig.1 Schematic diagram of the structure of the "four-in-one" energy ecological model.

The "Northern Rural Energy Ecological Model" (four-in-one) is an efficient ecological agriculture model created through the efforts of agricultural science and technology personnel in Liaoning Province and the repeated practice of farmers. It is based on the principles of ecology, biology, economics and systems engineering, based on land resources, powered by solar energy, with biogas as the link, combining planting and breeding, through bioconversion technology, in the farmer's courtyard land, in a fully enclosed state, the biogas digester, livestock (poultry) house, toilet, solar greenhouse are connected together to form a "four-in-one" comprehensive utilization system, so as to realize the synchronization of gas production and fertilizer accumulation, planting and breeding at the same time, and a virtuous cycle of energy flow and logistics, which is to adjust the agricultural structureIt is an important technical measure to increase peasants' incomes, improve the rural ecological environment, and improve peasants' quality of life.

With the solar greenhouse as the basic framework, biogas as the link, solar energy as the power, plant straw and animal manure as raw materials, the combination of planting and breeding, through biomass energy conversion technology, the biogas digester, pig house, greenhouse, and vegetables are organically linked together on the farmland to form a new energy-saving agricultural project.

1. Build a biogas digester in the solar greenhouse to raise pigs, pig manure and urine into the pool to produce biogas, biogas is used for lighting, cooking, raising room temperature, increasing light, biogas residue and biogas slurry to make organic fertilizer or pig feed for vegetables, pig respiration, organic matter fermentation and biogas combustion provide carbon dioxide fertilizer for vegetables and promote light and effect.

2. The vegetables in the "four-in-one" ecological greenhouse are 20-30% more productive than ordinary solar greenhouses, and the daily weight of pigs is kilograms, which is kilograms higher than that of courtyard pigs, and can be slaughtered in advance, which is 6000-8000 yuan higher than that of ordinary greenhouses. It has achieved "one net, two less, three increases, and four modernizations", and has achieved the effect of purifying the environment, reducing investment, reducing pests and diseases, increasing production, increasing income, and increasing efficiency, and has received the effect of waste recycling, production intensification, and integration of planting and breeding.

1.Achieve green planting, improve quality and yield. Fermentation regestate and slurry are a green fertilizer source that improves the soil.

At the same time, greenhouse planting makes fruits and vegetables not affected by low temperatures in the north, so that fruits and vegetables can be marketed in advance, and the annual output and quality of products have been improved.

2.Energy saving, filial piety, recycling and sustainability. In the "four-in-one" model, each energy source is green and sustainable, which not only does not harm the environment and the environment, but also makes full use of resources, greatly reducing the energy consumption of families and saving farmers' energy costs.

3.It has a significant effect of weight gain and fattening. Biogas slurry is weakly alkaline, which contains a large number of amino acids, vitamins and compound digestive enzymes, the use of biogas slurry as a feed additive in the livestock breeding industry, it can play a role in promoting the metabolism of livestock and significantly improving the utilization rate of feed.

It not only has the effect of weight gain and fattening, but also effectively shortens the slaughter time.

4.Reduce pest and disease hazards. In the "four-in-one" agricultural model, the planting of fruits and vegetables is mainly the use of biogas residue and biogas slurry, the use of biogas slurry and biogas residue to plant fruits and vegetables, can inhibit pests and diseases, reduce the use of pesticides, learn through effective planting methods, and even achieve pollution-free planting and production of fruits and vegetables.

The beneficial impact is to increase farmers' incomes, improve the rural environment, and increase farmers' employment opportunities. The adverse effect is furniture global warming.

Four-in-one agriculture, also known as the "northern rural energy ecological model", is an efficient ecological agriculture model created by the efforts of agricultural science and technology personnel in Liaoning Province and the repeated practice of farmers. It is based on the principles of sock ecology, biology, economics and systems engineering, based on land resources, powered by solar energy, linked by biogas, combined with planting and breeding, through bioconversion technology, on the land of farmers' courtyards, under the condition of fully enclosed complaints, the biogas digester, livestock (poultry) house, toilet and solar greenhouse are connected together to form a "four-in-one" comprehensive utilization system, so as to realize the synchronization of gas production and fertilizer accumulation, planting and breeding at the same time, and a virtuous cycle of energy flow and logistics. It is an important technical measure to readjust the agricultural structure, increase peasants' incomes, improve the rural ecological environment, and improve the quality of life of peasants.

Basic concept: It is a new production model that combines courtyard economy and ecological agriculture. It is based on the principles of ecology, economics and systems engineering, based on land resources, powered by solar energy, with biogas as the link, combining planting and aquaculture, and combining biogas digesters, pig and poultry houses, toilets and solar greenhouses together on the land of farmers in a fully enclosed state, so it is called the "four-in-one" model.

Specific form: On one side of a 150 square meter plastic film solar greenhouse, build an underground biogas digester of about 8-10 cubic meters, and build a pig house of about 20 square meters and a toilet on it, forming an energy ecosystem in a closed state.

The main technical features are:

1. The temperature of the enclosure has increased by 3 5 degrees in winter, which provides suitable production conditions for pigs and other livestock, so that the growth period of pigs has dropped from 10 to 12 months to 5 6 months. Due to the increase in the amount of feeding, it provides sufficient raw materials for the biogas digester;

2. The biogas digester under the pig house is heated due to the solar heat energy, which solves the technical problem of gas production in the cold winter in the northern region;

3. Pigs exhale a large amount of CO2, which increases the CO2 concentration in the solar greenhouse by 4 5 times, greatly improves the growth conditions of vegetables and other crops in the greenhouse, increases the yield of vegetables, and significantly improves the quality, becoming a class of green and pollution-free agricultural products.

On one side of a 150-square-meter plastic film solar greenhouse, an underground biogas digester of about 8-10 cubic meters is built, and a pig house of about 20 square meters and a toilet are built on it, forming an energy ecological return stove wide system in a closed state. The main technical characteristics are: 1. The temperature of the enclosure has increased by 3 5 degrees in winter, which provides suitable production conditions for pigs and other livestock, and the growth period of pigs has dropped from 10 to 12 months to 5 6 months.

Due to the increase in the amount of feeding, it provides sufficient raw materials for the biogas digester; 2. The biogas digester under the pig house is heated due to the solar heat energy, which solves the technical problem of gas production in the cold winter in the northern region; 3. Pigs exhale a large amount of CO2, which increases the CO2 concentration in the solar greenhouse by 4 5 times, greatly improves the growth conditions of vegetables and other crops in the greenhouse, increases the yield of vegetables, and significantly improves the quality, becoming a class of green and pollution-free agricultural products.

It is a new production model that combines courtyard economy and ecological agriculture. It is based on the principles of ecology, economics and systems engineering, based on land resources, powered by solar energy, with biogas as the link, combining planting and aquaculture, and combining biogas digesters, pig and poultry houses, toilets and solar greenhouses together on the land of farmers in a fully enclosed state, so it is called the "four-in-one" model.

Four-in-one agriculture, also known as the "northern rural energy ecological model", is an efficient ecological agriculture model created through the hard research of agricultural science and technology personnel in Liaoning Province and the repeated practice of farmers. It is based on the principles of ecology, biology, economics and systems engineering, based on land resources, powered by solar energy, linked by biogas, combined with planting and breeding, and through bioconversion technology, the biogas digester, livestock (poultry) house, toilet and solar greenhouse are connected together on the farmer's courtyard land and in a fully enclosed state to form a "four-in-one" comprehensive utilization system.

1. Increase the yield of vegetables, such as cucumbers and eggplants in winter, 1 square meter can increase the yield by 2 5 kg, increase the income by 5 6 yuan, and save about 200 yuan of fertilizer expenses annually;

2. Greenhouse pigs can be slaughtered 150 days in advance, reducing costs by 40 50 yuan;

3. Biogas lighting saves 60 yuan of electricity and 130 yuan of coal every year.

4. It has changed the custom of farming for half a year and idle for half a year in the northern region, and also changed the outdated custom of "men playing mahjong, women playing cards, and neighbors quarreling and scolding" in the winter idle season, and promoted the construction of spiritual civilization in rural areas.

5. The appearance of the rural courtyard is neat, clean and hygienic, which has completely changed the old appearance of "no toilet and no pig, more feces in front of and behind the house, smoke in the house for cooking, and weeds and garbage all over the yard".

From the definition point of view, the "four-in-one" ecological agriculture model is to realize the synchronization of gas production and fertilizer accumulation in the same solar greenhouse, and to establish an ecosystem with more biological populations and a sound food chain structure.

After understanding the "four-in-one", we know that the economic and ecological benefits of this industrial chain are generated. For example: aquaculture, fertilizer accumulation, gas production (biogas), domestic electricity; Accumulation of fertilizer-planting-breeding is a travel rule; This is a more scientific way of agricultural production.