Sustainable agriculture is the successful management of resources for agriculture to satisfy the changing human needs, while maintaining or enhancing the quality of environment and conserving the natural resources. 

Sustainable agriculture systems are designed to use existing soil nutrient and water cycles, and naturally occurring energy flows for food production. Furthermore, such systems aim to produce food that is both nutritious and without products that harm human health. In practice, such systems have tended to avoid as far as possible the use of chemical fertilizers, pesticides, growth regulators, and livestock feed additives, instead relying upon crop rotations, crop residues, animal manures, legumes, green manures, off-farm organic wastes, mechanical cultivation and mineral bearing rocks to maintain soil fertility and productivity, and on natural biological and cultural controls for insects, weeds, and other pests.

Sustainable agriculture is the successful management of resources for agriculture to satisfy the changing human needs, while maintaining or enhancing the quality of environment and conserving the natural resources. 

Sustainable agriculture systems are designed to use existing soil nutrient and water cycles, and naturally occurring energy flows for food production. Furthermore, such systems aim to produce food that is both nutritious and without products that harm human health. In practice, such systems have tended to avoid as far as possible the use of chemical fertilizers, pesticides, growth regulators, and livestock feed additives, instead relying upon crop rotations, crop residues, animal manures, legumes, green manures, off-farm organic wastes, mechanical cultivation and mineral bearing rocks to maintain soil fertility and productivity, and on natural biological and cultural controls for insects, weeds, and other pests.

I have previously responded to a similar question on this forum. Please see the below given RG discussion thread.

https://www.researchgate.net/post/What_is_sustainable_agriculture

Sustainable agriculture is the practice of agriculture using the principles of ecology, which is the study of the relationships between living organisms and their environments.

Dear Dr. AshokKumar,,

Sustainable agriculture or sustainable development means the good, scientific and suitable adminstration and management for agricultural resources to achieve the food satisfaction and support the food safety.

With regards.

Sustainable agriculture means the good management of water resources and the preservation of the environment and living organisms and the use of modern scientific methods for the purpose of achieving the highest proportion of agricultural output and the best quality

Sustainable agriculture is a type of agriculture that focuses on producing long-term crops and livestock while having minimal effects on the environment. This type of agriculture tries to find a good balance between the need for food production and the preservation of the ecological system within the environment. In addition to producing food, there are several overall goals associated with sustainable agriculture, including conserving water, reducing the use of fertilizers and pesticides, and promoting biodiversity in crops grown and the ecosystem. Sustainable agriculture also focuses on maintaining economic stability of farms and helping farmers improve their techniques and quality of life.

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Sustainable agriculture is to adopt such agricultural practices which are in coherence with agroecosystem and production by regulating the farm inputs in judicious way. It may have inclusion of many inputs from conservation agriculture, organic farming, Agroforestry, water use efficiency etc. The benefits of the sustainable agriculture is log term maintenance of soil health in order to produce sustained food grains and act as mitigation strategy for climate change too. To develop climate resilient cropping system is another aspect and all these should have agroforestry a major component . In India we are already having "National Mission on Sustainable Agriculture" as well as "sub mission on Agroforestry" as its part for which the more details you can find on that for projects and studies

Yes, it is integration of all types of inputs for crop production

Dear Ashokkumar V. Rajani ,

In my opinion, this concept consists of utilizing different approaches to reduce poverty and hunger, create sustainable patterns in the production of food products in pursuit of sustainable development goals, and preserve environmental values. Also, more explanations can be found in the following:

Article Adherence to Urban Agriculture in Order to Reach Sustainable...

Sustainable means take benifit of nature but without degradation of that resources

Sustainable agriculture is one of the key elements of the sustainable pro-ecological development in the economy conducted in accordance with the green economy philosophy. Sustainable agriculture cannot emit any negative effects on the natural environment, i.e., above all, it cannot generate environmental pollution and it cannot emit greenhouse gases. In this way, sustainable pro-ecological agriculture is developed, which is not a source of the global warming process. One of the good solutions for combining the concept of sustainable development with pro-ecological agriculture is organic production of agricultural products, i.e. without the use of chemical plant protection products and chemically produced fertilizers. Appropriate production of organic agricultural products is a good solution for the development of sustainable pro-ecological agriculture. Farms that operate according to the principles of sustainable pro-ecological agriculture can also develop sustainable pro-ecological agro-tourism. It is a perfect combination of ecological goals. This type of farm should have its own power plants for the production of electricity and heat from renewable energy sources. Waste should be subject to full segregation and recycling of organic waste used as compost for the production of natural, organic fertilizers should be used. On a farm operating in accordance with the principles of sustainable pro-ecological agriculture, the principles of protection of pollinating insects should be observed and apiaries with bees should be kept. A farm operating a sewage treatment plant should operate on a farm operating in accordance with the principles of sustainable pro-ecological agriculture, especially if farm animals are also raised on this farm. Agricultural holdings operating in accordance with the principles of sustainable pro-ecological agriculture should be able to produce on the principles of in-house and handicraft production of organic agricultural products, etc. and sell them on the local market, for tourists visiting an agritourism farm or in special stores, in production and service cooperatives, with reduced rates tax. Within the framework of agricultural and pro-ecological policy, the state should support the development of farms operating in accordance with the principles of sustainable pro-ecological agriculture.

Best wishes

Dariusz Prokopowicz

Yes, Darius I agree with you and you provide excellent information abot sustainable agriculture