1. Farmers in semi-arid West Africa understand the value of water, how it limits crop production and how essential it is to survival. They must contend with unreliable rainfall, short, unpredictable rainy seasons, and increasingly frequent natural hazards. Moreover, climate change may exacerbate all...
  2. Access Agriculture Training Video Zaï as they are known in Burkina Faso, or tassa in Niger, are wide deep planting pits. They act as a microcatchment and can be used to rehabilitate soils when used with manure. They have been very successful in West Africa during the last 25 years. Available...
  3. TheZayis made on land which is not very permeable so that runoff can be collected.Zaiare holes dug approximately 80 cm apart to a depth of 5 to 15 cm, with a diameter of between 15 and 50 cm (Figure 1).Zaiimprove infiltration of the captured runoff. The holes are deepened each winter....
  4. "Runoff farming" is identical with "Water Harvesting but for Irrigation Purposes". When the harvested runoff water from un-cropped areas is directed to a cropped area, this technique is called runoff farming. Soil profile acts as a water storage container, but storage in ponds or cisterns is also...
  5. & ldquo; Zai & rdquo; ni neno ambalo wakulima kaskazini mwa Burkina Faso hutumia kurejelea mashimo madogo ya upandaji ambayo kawaida hupima cm 20-30 kwa upana, yana urefu wa cm 10-20 na yamepakana kwa cm 60-80. Katika mkoa wa Tahoua wa Niger, neno la haussa & ldquo; tassa &...