It presents practical observations from field plots and explains how different inputs change organic matter, acidity, and plant food contents over time. This edition details how organic matter can be built and preserved without overhauling the land, the impact of lime on yields and soil chemistry, and the complex balance between nitrogen, phosphorus, and carbon. It also covers nitrogen fixation and the role of acid phosphate and potash in sustaining fertility, with guidance drawn from real-world experiments.

How organic matter, acidity, and yield respond to different fertilizer strategies
The effects of lime alone versus lime with manure or fertilizer
Patterns of nitrogen balance and potential nitrogen fixation in soils
Practical insights for managing lime requirements and soil fertility over time

Ideal for readers of farming, soil science, and sustainable land management, this book helps growers understand long‑term soil productivity and informed input choices.

"About this title" may belong to another edition of this title.

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