Indian Journal of Plant and Soil

 Enriching organic wastes with humus substances through the bioactivity of earth worms is deliberated. Earth worms’ activity enriches composts with 30 to 50% humus substances, besides many simple organic compounds, in a period of 20 to 30 days. Nature takes several years to build such level of humus substances in soil pro le Abstract

Keywords Vermicompoting; Humus Enrichment; Analysis and Trials

Several attempts were reported about the theoretical maximum yield potential (NPP Net Primary Production) of tea plant from time to time. Some of them are discussed to bring out the large gap between NPP and what is achieved and to highlight the important facets that are to be looked into for sustaining economic productivity Abstract

Keywords: Net Primary Production; Constraints to Productivity; Critical Analysis.