Minimum tillage

This category contains 4 resources

Les Techniques d'Agriculture de Conservation dans les zones rurales d'Haïti

Ceci n'est pas la version finale de cette fiche technique: le contenu est sous révision et pourrait être modifié. La version finale sera disponible après validation technique vers le 30 août 2017.

L'application des techniques d'agriculture de conservation répond à une nécessité d'apporter des réponses pratiques à la dégradation des sols, la faible fertilité des sols, et à la protection des bassins hydrographiques de la zone considérée. Les objectifs de cette technique sont de conserver, d'améliorer et de faire un usage plus efficient des ressources naturelles à travers la gestion intégrée des sols, de l'eau et d'autres ressources disponibles. Cette fiche technique décrit les trois principes de l'agriculture de de conservation en réponse à l'adaptation à la sécheresse, aux changements climatiques en particulier aux variations de la température et de la pluviométrie. Sa principale caractéristique est la régénération des sols plus rapide de sorte que l'intensification de la production agricole soit économique, écologique et socialement durable. Elle repose sur trois principes de base:

  1. La rotation ou association de cultures
  2. Le zéro labour ou labour minimal
  3. La couverture permanente du sol

Zero/Minimum tillage in rice-wheat system in Nepal

Growing of rice and wheat in sequence in Nepal is common, it constitutes the major cropping system in the Terai region of Nepal. The average yields of rice rarely exceed 3 t ha-1 and wheat yields invariably remain within 1–2 t ha-1. These yields are low in comparison with other parts of south Asia where the rice-wheat system is practiced.

In general, one of the major difficulties for this system is to plant wheat in marshy or wet lands after rice, as land preparation is very difficult under such conditions. Wet and marshy lands need more time to come to good tilth and thus wheat cannot be planted in time. In this context, zero or minimum tillage practice constitutes a feasible solution with minimum disturbance to the soil by simply placing the seeds in furrows opened or scraped by the tines. Zero-tillage wheat allows for a drastic reduction in tillage intensity, resulting in significant cost savings as well as potential gains in wheat yield through earlier planting of wheat.

Introduction to conservation agriculture (its principles & benefits)

This entry gives an overview of the concept, the fundamental principles and the benefits of conservation agriculture (CA). CA is an approach to managing agro-ecosystems for improved and sustained productivity, increased profits and food security while preserving and enhancing the resource base and the environment. CA is characterized by three linked principles, which are discussed in more detail: (1) Continuous minimum mechanical soil disturbance; (2) permanent organic soil cover and (3) diversification of crop species grown in sequences and/or associations.
This technology is part of a series on conservation agriculture.

Conservation agriculture for smallholder farmers in dryland areas, Kenya

The Laikipia district, in the Rift Valley of Kenya, is located on the plateau north west of Mount Kenya. Due to its leeward position, the district is significantly dry, with aridity increasing from the slopes of the mountain to the dry lowlands. Inadequate rainfall and periods of drought have caused land degradation and soil erosion, affecting the productivity of agriculture and the livelihoods of smallholder farmers in these arid and semi arid areas. Two Farmer Field Schools established in the district introduced Conservation Agriculture principles and techniques which mitigated the impact of drought on farm production and on the environment.