Managing declining yields from ageing tea plantations

J Sci Food Agric. 2014 Jun;94(8):1477-81. doi: 10.1002/jsfa.6543. Epub 2014 Jan 24.

Abstract

Strong growth in the demand for tea requires further increases in the productivity of plantations. Declining or stagnant yields are commonly observed in older plantations. Possible controlling factors for yield decline are reviewed including ageing of plants, chronic disease and sub-optimal soil conditions such as excess soil acidity and low soil organic matter. Management options for addressing these factors are evaluated, including replanting. A systematic approach to decision-making about replanting is presented. Practice for replanting is reviewed and it is concluded that evidence to support a general case for replanting is limited, unless based on the introduction of more productive clones and/or better plant spacing.

Keywords: establishment; replanting; soil management; tea; yield.

Publication types

  • Review

MeSH terms

  • Agriculture / methods*
  • Camellia sinensis / growth & development*
  • Hydrogen-Ion Concentration
  • Plant Diseases / microbiology
  • Plant Diseases / parasitology
  • Plant Roots / growth & development
  • Soil / chemistry
  • Time Factors

Substances

  • Soil