Agronomy Old: Reference

Reference work covering classic and modern studies in plant biology in conjunction with research, applications, and innovations in crop science. Online version features quarterly updates, keyword searchability, color graphics, and customized content views.

Encompasses information on the world's variegated soils, their origins, properties, classification, and roles in the biosphere. This four-volume set features thorough articles that survey specific aspects of soil biology, ecology, chemistry and physics. It contains visual resources such as photographs, figures, tables, and graphs in every entry.

The one essential authoritative reference work to the plants of North American horticulture. 23,979 entries with description for families, genera, and species, 10,326 cross-indexed synonyms. A large but uncounted number of entries for subspecies, varieties, forms, and cultivars. Notes on use, culture, and propagation. Hortus Third is for advanced horticulturists and others interested in cultivated plants, including horticultural and garden writers, gardeners, nurserymen, landscape architects, botanists, and professional scientists in universities, botanical gardens, extension services, and government.

Provides up-to-date and practical coverage of new innovations in agricultural science, including soil science and chemistry, chemical and organic fertilizers, fruit tree cultivation techniques, plant cultivation and control, principles and methods for extensive crops, horticulture, and greenhouses. Contains abundant full-color photographs and drawings with explicative captions.

This interdisciplinary atlas reveals the treasures and the bounty sheltered within America's hills, valleys, plains, grasslands, deserts, and forests. It takes a detailed look at the agriculture itself and also at its effects on the people and cultures of the land past, present and future. It may help the reader find out what's growing, who's growing it, and what important changes have occurred in crop output over the years. Maps, photos, and other materials help to illustrate each topic or region.