Soil constitution and water regimes directly affect the availability of soil water, which further influence plant growth and physiological processes. Hot pepper is one of the important economic crops in China. In this paper, the specific leaf area, photosynthesis, nutrient content, yield, fruit index and biomass of hot pepper at four kinds of soil constitution patterns and 3 kinds of water regimes were measured. The objective of this experiment was to reveal the physiological mechanism and soil physics mech...