Characterization of thermal power-plant fly ash for agronomic purposes and to identify pollution hazards

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

Diagnosis and Improvement of Saline and Alkali Soils

L. A. Richards · Soil Science · 1954 · 9.2K citations

Agriculture, Agronomy, Soil Sciences +11

Soil chemical analysis

Journal of the Franklin Institute · 1958 · 4.7K citations

Agriculture, Chemistry, Soil Sciences +7

Diagnosis and Improvement of Saline and Alkali Soils

AIBS Bulletin · 1954 · 3.1K citations

Agriculture, Agronomy, Soil Sciences +11