159 Artículos encontrados ( Mostrando 1 - 10)
  1. Thomas Fairhurst Una pregunta que se nos hace en ECHO es: “Tienen ustedes una finca orgánica?” Y la respuesta es: “No. Porque debido a nuestros suelos, clima y objetivos únicos nosotros utilizamos herbicidas, insecticidas y fertilizantes minerales según se necesiten. Al mismo tiempo, nuestra meta es minimizar...
    333.761 ASH
  2. Keith Mikkelson Este libro es una obra importante para la agricultura tropical. Existen muy pocas fuentes de informacion que son realmente "orgánicas" y prácticas para el agricultor comun en el contexto ambiental y tropical. Este libro se dirige a asuntos que son extremadamente utiles para la operación diaria de...
    630. MIK | SC.027
  3. Nyle C. Brady & Ray R Weil Soils play a critical role in meeting human food needs. Their conservation and wise use are essential today and will be even more critical in the future as population pressures increase. These pressures are already forcing the use of lands for food production that good judgment says should be...
    631.4 BRA
  4. Paul Skillicorn, William Spira, William Journey The purpose of this booklet is to present a group of tiny aquatic plants commonly known as "duckweeds' as a promising new commercial aquaculture crop. Section 1 presents basic information on duckweed biology. This paper summarizes current knowledge, gained from practical experience from the...
    639.89 SKI
  5. Anthony Young [see also 631.491 YOU - volume updated, and with title change] This book is a review of the potential of agroforestry for soil conservation, treated in its wider sense to include both control of erosion and maintenance of fertility. The objectives are: To summarize the present state of knowledge...
    631.491 YOU | SA.037
  6. National Academy of Sciences The problems of firewood shortages and the promise of firewood plantations were described extensively in the first volume. No less than one-and-a-half billion people in developing countries derive at least 90 percent of their energy requirements from wood and charcoal. Another billion people meet...
    634.98 NAS | SA.011
  7. Franklin W. Martin, Ruth M. Ruberte, Laura S. Meitzner Third Edition [library also has 2 copies of the 1975edition] People interested in tropical gardening or botany will find this an indispensable guide to several hundred species of plants with edible leaves. Leaves can provide high-quality food, and in the tropics, many are from perennials...
    581.632 MAR | PD.004, PD.015
  8. Harry van den Burg 2 Copies Seed production and the maintenance of crop cultivars by small farmers is a subject that has attracted increasing attention over the past decade. The increasing dominance of large multinationals in the seed trade, the controversy over genetic engineering, and the recognition of farmersí...
    631.521 AGR
  9. Julia Frances Morton This 505 page book is an exceptionally exhaustive source of information on tropical and subtropical fruits. It is a well-illustrated and very readable, practical guide for those interested in growing tropical and subtropical fruits either for the home garden or commercially. The fruits are...
    634.091 MOR | PI.006