Methods of soil analysis.

TL;DR: In this article, the influence of rock fragment contents, orientation, and position within a small and watershed on hydraulic conductivity in northern Chile was identified, and two different measurement techniques were used, a single-ring infiltrometer with constant ponding head and a tension infiltrameter, which were applied at both an undisturbed field site (44 locations along three transects) and on the disturbed < 2-mm soil fraction from the same locations.

TL;DR: In this article, the influence of four different tillage practices on bulk density, total porosity, penetration resistance, field capacity, field water content and the infiltration rate of a loamy soil in a semi-arid region was investigated.

TL;DR: In this paper, the influence of varying canopy cover and fertilization on cocoa yields was investigated, showing that there was a positive effect of increased canopy cover on yields within the shaded plots and no significant differences between shaded and no-shaded plots.

TL;DR: A 2-year field experiment was conducted during the wet seasons (July-October) of 2008 and 2009 on a Typic Hapludoll Mollisol in Indo-Gangetic Plains Region (IGPR) to investigate the effects of field water re-ponding intervals and plant spacing on the growth, yield, and water productivity of two rice cultivars under system of rice intensification (SRI) management, and assess comparative performance of SRI versus best management practices (BMP) of rice cultivation.

TL;DR: In this paper, the authors present a modeling approach aimed at seasonal resolution of global climatic and edaphic controls on patterns of terrestrial ecosystem production and soil microbial respiration using satellite imagery (Advanced Very High Resolution Radiometer and International Satellite Cloud Climatology Project solar radiation), along with historical climate (monthly temperature and precipitation) and soil attributes (texture, C and N contents) from global (1°) data sets as model inputs.

TL;DR: In this paper, the Century ecosystem model was applied to a series of forest and grassland sites distributed globally to examine large-scale controls over soil carbon, including soil texture and foliar lignin content.

TL;DR: In this article, the Rothamsted model is used to calculate the amount of CO2 that would be released from the world stock of soil organic matter if temperatures increase as predicted, the annual return of plant debris to the soil being held constant.

TL;DR: In this paper, the formation of soil structure involves the physical forces of shrinking and swelling created by changes in water status of soils, freezing and thawing, tillage, or by movement of the larger biota in soils.