Conservation Tillage, Residue Management, and Crop Rotation Effects on Soil Major and Micro-nutrients in Semi-arid Vertisols of India

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

The Nature and Properties of Soils

Agronomy Journal · 1952 · 6.2K citations

Agriculture, Earth Sciences, Soil Sciences +10

Soil Chemical Analysis

L J Hardin · Journal of AOAC INTERNATIONAL · 1958 · 6K citations · Full text

Agriculture, Chemistry, Soil Sciences +7

The Nature and Properties of Soils

Harry O. Buckman, Nyle C. Brady · Soil Science · 1960 · 3.3K citations

Agriculture, Earth Sciences, Soil Sciences +10