Effects of biochar on soil quality and tobacco growth during four years of consecutive application

Yunnan Tobacco Company, & Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences.

Objectives :To understand the effects of biochar application on quality of crop products as well as biochar tolerance in different soils can benefit the wide use of biochar.

Conclusions  In summary, after four years of consecutive application, biochar significantly increased topsoil available K, N, and P contents as well as soil pH, and decreased soil bulk density. The yield, outcome value and quality of tobacco leaves was improved due to biochar application. Article

Abstract : Currently our tests with cannabis are showing significant improvement in overall leaf color. Better nutrient and water retention in the soil, as well as overall health. More conclusions cannot be made at this time, but will be soon.


Whats biochar ?

Biochar is a solid material obtained from the carbonization thermochemical conversion of biomass in an oxygen-limited environments. In more technical terms, biochar is produced by thermal decomposition of organic material (biomass such as wood, manure or leaves) under limited supply of oxygen (O2), and at relatively low temperatures (<700°C). This process mirrors the production of charcoal, which is perhaps the most ancient industrial technology developed by humankind. Biochar can be distinguished from charcoal—used mainly as a fuel—in that a primary application is use as a soil amendment with the intention to improve soil functions and to reduce emissions from biomass that would otherwise naturally degrade to greenhouse gases. Article