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Korean natural farming (KNF) is an organic agricultural method that takes advantage of indigenous microorganisms (IMO) (bacteria, fungi, nematodes, and protozoa) to produce rich soil that yields high output without the use of herbicides or pesticides.
The hydroponic method of plant production by means of suspending the plant roots in a solution of nutrient-rich, oxygenated water. Traditional methods favor the use of plastic buckets and large containers with the plant contained in a net pot suspended from the centre of the lid and the roots suspended in the nutrient solution.
The decline in wild fish stocks has increased the demand for farmed fish. [22] However, finding alternative sources of protein and oil for fish feed is necessary so the aquaculture industry can grow sustainably; otherwise, it represents a great risk for the over-exploitation of forage fish. [23]
Algae have very high growth rates compared to plants normally used to produce vegetable oil. Algae could potentially produce much more oil per area of land than current farming methods. [26] Producing vegetable oil this way could result in reduced deforestation and less competition for food production land.
The fish oil is effectively a by-product of this process that proves to be a rich source of energy and fatty acids for fish, including the important long-chain omega-3 fatty acids EPA and DHA now linked to the health benefits associated with eating oily fish such as salmon and mackerel. Fish in general also are good sources of many vitamins and ...
Algal oil can be produced several ways: "Solazyme takes cheap, readily available plant-matter such as prairie grass, sugar cane and corn husks and feeds it in big tanks to single-cell organisms ...
Ecological farming is a concept that focused on the environmental aspects of sustainable agriculture. Ecological farming includes all methods, including organic, which regenerate ecosystem services like: prevention of soil erosion, water infiltration and retention, carbon sequestration in the form of humus, and increased biodiversity. [137]
For example, a planned closed-containment salmon fish farm in Scotland uses ragworms, algae, and amino acids as feed. [19] Some of the eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in Omega-3 fatty acids may be replaced by land-based (non-marine) algae oil, reducing the harvest of wild fish as fish meal. [20]