laboratory assistant working with plants, different kinds of soil and sand, testing and analyzing results

agriculture agronomy analysis analyzing assistant befor biochemistry biological biology biotechnology black chemical chemist chemistry clay container ecologist ecology engineering environment equipment examining experiment expertise genetic glass glassware green growth hands holding industry investigation lab laboratory liquid medical medicine microbiology nature organic outdoor pharmacy plant pouring professional research researching sample sand science scientific scientist seedling soil substans technology test testing them tube tubeconcept tubegrowing tubes work worker