All-Russian, later All-Union executive arm of the Soviet government, the effective ruling body of the Soviet governmental system. (English: Central Executive Committee; Russian acronym: TsIK; alternative terms: VTsIK; Tsentral'nyi ispolnitel'nyi komitet.) Found on http://soviethistory.msu.edu/glossary/
Cation Exchange Capacity, is a measure of how much fertilizer your soil can hold and release over time. A high CEC is good because it means your soil will hold a lot of fertilizer. Clay soils have high CEC. A low CEC means you will have to fertilize more often. Sandy soils have low CEC. Found on https://www.provenwinners.com/learn/dictionary-gardening-terms