As all vegetal wastes, also tea waste have a high fertility value for soil and plants due to their rich content in complex organic molecules such as cellulose, hemicelluloses, proteins, lipids, poliphenols as well as many minerals. Such waste can be aerobically and anaerobically decomposed by microorganisms (bacteria, fungi and yeast) to simple molecules and oligoelements which are required for plants growth. But a correct management practice must be considered since the uncontrolled decomposition of such waste, when directly applied on soil, may lead to environmental pollution (acid leachate that contaminates soils and groundwater, methane that is a greenhouse gas contributing to air pollution etc.). Therefore, a non-polluting practice of using tea waste as a fertilizer in agriculture is their stabilization by techniques such as composting, solid-state fermentation, thus resulting in a non-acid and non-polluting fertilizer, while the generated fuel gas (methane) can be recovered and valorised.
Thanks Dr. Carmen for such typical useful informations.
Tea wastes might play a concrete role in soil as they can improve soil microbial community by supplying the necessary nutrients , cellulose and polyphenol which enhance plant growth subsequently.
Also they may modify the high pH OF SOIL via the organic acids , leading to healthy rhizosopheric area.
Almost all plant residues have high fertility value and the addition of these compounds to soil can enhance soil fertility, but since tea waste is produced in acidic conditions it is better to use stabilized compositions such as compost
Thanks Sanders. I Tea bags might contian plastic materials but we are in a favourite of using the tea leaves which are a result of boiling of the tea leaves . These waste can be used for plant as studies have proved its decent composition as a fertilizer.
If we are managing healthy decomposition of tea waste, when applied directly on agriculture land, In context of Indian climate zone, without any stabilization techniques, and managing on site stabilization in correct way, then will it do same effect or better than stabilized one.
Also can you help me to understand the use of solid state fermentation technique for stabilization of ref material.
I have confidence, SSF will work better, but need more help to understand.
SSF is not quite my field of expertise but there is a lot of documentation on the internet about this method. I send you some papers that might help you. I sincerely don't understand what do you mean by healthy decomposition of such waste when applied directly on the soil. I do not see how this practice can avoid acid leakage and methane emissions if the waste is not stabilized prior. Regards.