1 Subjects: “...organic amendments...”

2 Subjects: “...organic amendments...”

3 Subjects: “...organic amendments...”

4 Table of Contents: “... Amended with Fly Ash and Organic Byproducts -- 12. Effects of Fly Ash and Sewage Sludge Amendments...”

5 Table of Contents: “...-Amended Soils -- Colloids and Contaminants, Engineering Aspects -- Ion - Colloid - Colloid Interactions...”

6 Table of Contents: “... to Slash and Burn Practiced in the Amazon Basin -- 15 Microbial Response to Charcoal Amendments of Highly...”

7 “... on use of industrial by-products as amendments for alkali soils, physiological aspects of salt resistance...”

8 Table of Contents: “... of Rajasthan, by K K Yadav.-18. Effect of Biochar Amendment on Nitrate Leaching in Two Soil Types of India...”

9 Table of Contents: “...-Montmorillonite -- 32. Trace Mineral Amendments in Agriculture forOptimizing the Biochemical Activity of Plant...”

10 Table of Contents: “... Boreal Forest in Eastern Finland -- Effects of Chronic Nitrogen Amendments on Production of Dissolved...”

11 “... saturation, and soil and stream acidification. Some of the responses to N amendments were not expected nor...”

12 “... several chapters have been updated and amended to reflect progress in the field...”

13 “... and additions. This procedure of upgrading and amending the papers has continued until this year (1973...”

14 “..., nutrients, irrigation, amendments, crop rotations, crop residue management practices for improving soil...”