C baker w ritchie (14 résultats)

Etat : New. Idioma/Language: Español. CONTENIDO: Autores - Prólogo a la segunda edición - Prólogo - 1. Los «¿qué?» y los ¿por qué?» de la agricultura con labranza cero - 2. Los beneficios de la labranza cero - 3. La naturaleza del riesgo en la labranza cero - 4. Abresurcos y forma de las ranuras - 5. La función de la cobertura de las ranuras - 6. Siembra en suelos secos - 7. Siembra en suelos húmedos - 8. Profundidad, colocación y distanciamiento de las semillas - 9. Colocación del fertilizante - 10. Manejo de los residuos - 11. Comparación del disturbio superficial y de los abresurcos de discos de bajo disturbio - 12. Labranza cero para producción de forraje - 13. Modelos de sembradoras y de sembradoras de precisión para labranza cero máquinas para trabajos en gran escala - 14. Modelos de sembradoras y de sembradoras de precisión máquinas para pequeña escala - 15. Manejo de un sistema de siembra para labranza cero - 16. La agricultura con tráfico controlado una práctica complementaria para la labranza cero - 17. Reducción de las emisiones ambientales y secuestro de carbono - 18. Algunas comparaciones económicas - 19. Procedimientos para el desarrollo y la transferencia de tecnología - Referencias - Índice alfabético. *** Nota: Los envíos a España peninsular, Baleares y Canarias se realizan a través de mensajería urgente. No aceptamos pedidos con destino a Ceuta y Melilla. …

Paperback. Etat : Good. 64 pages. clean tidy copy-folding tables at back.

Hardcover. Etat : Fine. No Jacket. 1st Edition. During the last 30 years, farmers have been strongly encouraged to adopt some form of conservation tillage, primarily for long-term environmental reasons. However, the experience of many farmers of no-tillage suggests greater short-term risk, in the form of reduced seedling emergence or crop yield or even crop failure. A major aim of this book is to show how the risks in the practice of no-tillage can be reduced. It begins by describing the inter-relationships between soils, machines, seeds and growing plants. Too often in the past the subject has been approached from a purely engineering or a purely soils perspective, neglecting the agronomic viewpoint. The authors of this book focus on the needs of the plants which thus determine the requirements for a no-tillage seed drill. The result of their own research is the inverted T-shaped no-tillage soil slot and the Cross Slot drill" and planter opener, which are described in some detail. By re-evaluating common assumptions about seed germination in soil, the authors provide a totally new perspective on no-tillage seeding.…

Etat : New.

Etat : New. In English.

Etat : New.

Etat : New. 2006. 2nd Edition. Hardcover. . . . . .

Etat : New. pp. 352 Figures, Illus.

Hardcover. Etat : Brand New. 2nd edition. 326 pages. 9.75x7.00x1.00 inches. In Stock.

Etat : New. pp. 352 2nd Edition.

Etat : As New. Unread book in perfect condition.

Etat : New. 2006. 2nd Edition. Hardcover. . . . . . Books ship from the US and Ireland.

Etat : As New. Unread book in perfect condition.

Hardcover. Ex-library, slight sunning to spine, otherwise good (no markings to clean text). No dustjacket. Aims ".to show how the risks in the practice of no-tillage can be reduced". 258pp. ISBN-10 0851991033. ISBN-13: 9780851991030.