Due to intense and widespread attention being given to the undesirable side effect of synthetic agrochemical products such as residual contamination, resistance, ecosystem impairments, and waste generation, the use of natural agrochemicals that are biologically safe will prove to be significant and profitable.

Rainwater harvesting is catching rainwater when it falls and storing to use during the non rainy season. Harvested rainwater can be utilized for several purposes, gardening, washing even drinking. In Sri Lanka, we have been practicing it throughout the history by collecting water in wewa or tanks.

Chena (Slash and burn) cultivation is one of the most old type of cultivation practice among most of the tropical countries. The Chena cultivation, involving cutting down of virgin forest and burning and clearing of land that leads to a formation of barren Chena lands, is still taking place and increases from year to year in Sri Lanka.