These tables are constructed by amateurs and edited by passers-by. Their accuracy cannot be guaranteed. This includes the safety information, which is provided for curiosity value only. When handling chemicals, always take the proper precautions as defined by a reliable source of information.
Organic greenhouse vegetable production is regularly practiced by certified organic farmers and market gardeners, and has potential for wider adaptation by established greenhouse operators and entry level growers as a niche market or sustainable method of production.
Organic farmers rely heavily on crop rotations, crop residues, animal manures, legumes, green manures, organic wastes, and mineral-bearing rocks to feed the soil and supply plant nutrients.
Organic fertilizers and soil amendments are extensively used to feed the soil.
Organic matter in soils is represented by plant debris or litter in various stages of decomposition through to humus and includes the living organisms in the soil.
They can be classified in heterotrophs, which require C in the form of organic molecules for growth, and the autotrophs, which can synthesize their cell substance from the C of CO, harnessing the energy of sunlight (in the case of photosynthetic bacteria and algae) or chemical energy from the oxidation of inorganic compounds (the chemoautotrophs).
Organic soils (Histosols) whose formation is favored by waterlogging may have turnover times exceeding 2000 y and soils of tundra regions where low temperatures retard oxidation may have turnover times exceeding 100 y.
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