Organic Farming

Glossary

L

LEGUME - Plants including beans, peas, clovers, and alfalfa - that form a symbiotic relationship with nitrogen - fixing bacteria living in their roots. These bacteria help to supply the plants with an available source of nitrogen.

LIGNIN - A substance found in woody tissue and in the stems of plants that is difficult for soil organisms to decompose.

LIME OR LIMESTONE - A mineral consisting of calcium carbonate (CaCO3) that can neutralize acids and is commonly applied to acid soils.

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Table of Contents
Introduction
Introduction to Organic Farming
Organic Crop Certification
Approved Materials for Organic Farming
Soil Management on Organic Farms
Soil Tillage in Organic Farming Systems
Cover Crops for Organic Farms
Crop Rotation on Organic Farms
Intercropping on Organic Farms
Manure Management on Organic Farms
Compost Management on Organic Farms
Integrated Pest Management on Organic Farms
Insect Pest Management for Organic Crops
Plant Disease Management for Organic Crops
Weed Management for Organic Crops
Glossary
Index (PDF)