|Название:||Managing Healthy Sports Fields : A Guide to Using Organic Materials for Low-Maintenance and Chemical-Free Playing Fields|
|Автор:||Paul D. Sachs|
|Цена:||8 016 руб.|
|Описание:||Book DescriptionThe huge chemical arsenal once available to turf managers for pest, weed and disease control has slowly but surely been restricted or regulated. As a result alternative methods have had to be sought. This text aims to liberate the modern turf manager from dependency on chemical treatments through suggestions you can adapt to specific field types, climatic zones, and desired appearance. Author Paul Sachs offers safety for people and animals, as well as longevity for the land, without sacrificing the quality of the turf itself. Written for turf managers who need to reduce or eliminate chemical pesticides and fertilisers in their turfgrass management processes. Offers advice and practical steps to earth-conscious turf managers, and those who are responding to the growing chorus of concerns about fertilisers and pesticides. Covers the basics of soil fertility, composting, methods of soil analysis, cultural practices and pests. ...|
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Симметрия в природе
Тема книги — внешние формы природных тел (кристаллов, растений, животных, ...