Agroforestry systems in the mid-hills of the north-western Himalaya: A sustainable pathway to improved soil health and climate resilience

AN EXAMINATION OF THE DEGTJAREFF METHOD FOR DETERMINING SOIL ORGANIC MATTER, AND A PROPOSED MODIFICATION OF THE CHROMIC ACID TITRATION METHOD

Allan Walkley, I. ARMSTRONG BLACK · Soil Science · 1934 · 21.7K citations · Full text

Agriculture, Earth Sciences, Soil Sciences +14

Development of a DTPA Soil Test for Zinc, Iron, Manganese, and Copper

W. L. Lindsay, W. A. Norvell · Soil Science Society of America Journal · 1978 · 9.8K citations

Agriculture, Agronomy, Soil Sciences +17

Soil chemical analysis

Journal of the Franklin Institute · 1958 · 4.7K citations

Agriculture, Chemistry, Soil Sciences +7

Good Practice Guidance for Land Use, Land-Use Change and Forestry

J. Penman, M. L. Gytarsky, Taka Hiraishi et al. · IIASA PURE (International Institute of Applied Systems Analysis) · 2003 · 2K citations

Natural Resources, Forestry, Land-use Planning +16

Root biomass allocation in the world's upland forests

Michael A. Cairns, Sandra Brown, Eileen H. Helmer et al. · Oecologia · 1997 · 1.6K citations

Natural Resources, Ecology, Forestry +11