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Book (stand-alone)SAHEL WEATHER AND CROP SITUATION - July 1999 1999
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Rising concerns over reduced precipitation in early or mid-June, particularly in Burkina Faso and Niger have eased with abundant rains over most producing areas of the Sahel since late June. Rains have now started in western Gambia, northern Senegal, southern Mauritania, central and northern Mali, eastern Niger and the Sahelian zone of Chad where plantings have started. Further south, above normal rains benefitted recently planted crops and compensated for the below average rains of early to mid -June. In Guinea Bissau, they helped desalination of swamp rice fields where rice seedlings, now in seedbeds, will be transplanted. In Cape Verde, first rains have been registered in early July. Satellite imagery indicates that during the first dekad of July, precitation remained normal to above normal throughout the Sahel except in the south of Chad. The dry spell of early to mid-June in Burkina Faso and Niger delayed plantings and necessitated replantings in some areas. This might reduce production if rains do not continue late in the season. Grasshoppers are reported in Chad, the Gambia and Niger. Grain-eating birds are reported in Mali and Niger. Control measures are underway. Rodent attacks to crops are also reported in Niger. The Desert Locust situation remained calm during June. Low numbers of adults are expected to appear in the summer breeding areas of the Sahel but no significant developments are expected. -
Book (stand-alone)SAHEL WEATHER AND CROP SITUATION - September 1999 1999
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No results found.Following generally above normal rains in July over most agricultural zones, growing conditions remained favourable in August in the Sahelian countries. During the three dekads of August, rainfall was generally above normal and cumulative rainfall in August exceeds 100 mm everywhere in the main producing zones of the Sahel and in most cases in northern desert areas (see map on page 4). Unusually heavy rains were registered in Burkina Faso, Chad, Gambia, Mali, Mauritania, Niger and Senegal, causi ng substantial flooding. These abundant rains benefited crop and pasture development particularly in Mauritania, northern Senegal and Mali, although excess water may reduce yield potential in flooded fields in low-lying areas. Crop prospects are generally favourable. However, the outcome for long cycle varieties in the Sudanian zones (Burkina Faso, Niger and Chad) will depend on the continuation of the rains in September. Pastures are abundant in the region. Satellite imagery for the first days of September indicates that precipitation decreased somewhat over the Sahel but remained widespread and still above average over most parts of Burkina Faso and Chad. Pest infestations (mostly grasshoppers and army worms) are reported in Cape Verde, Niger and Senegal, and treatments have been undertaken in some areas. Stemborers caused damage on millet in northern Burkina Faso. Although no Desert Locusts have been reported from any country in the region, small-scale breeding may occur. No si gnificant developments are expected. -
Book (stand-alone)SAHEL WEATHER AND CROP SITUATION - October 1999 1999
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After abundant rains in mid or late August in several parts of the Sahel, rainfall decreased somewhat in September but remained generally widespread and above normal. During the first two dekads, rains were well distributed over the producing zones of the Sahel and abundant in Senegal, The Gambia, Guinea Bissau, Burkina Faso and Chad. However, they were more limited in Mali. During the third dekad, they stopped in north-western Senegal and central Chad but continued over all the other producing zones. Cumulative rainfall is generally normal to above normal in Burkina Faso, Chad, The Gambia, Niger and Senegal. High water levels in the Senegal and Niger rivers caused flooding, notably in Mauritania. Soil moisture reserves are adequate except in some areas in northern Senegal and Niger. Early millet and sorghum are maturing or reaching harvest stage in most productive zones. Satellite images for the first dekad of October indicate that cloud coverage continued over most producing zones of Senegal, Mali, Burkina Faso and Chad but diminished over Mauritania, north-eastern Burkina Faso and Niger. Precipitation remained above normal in southern and central Senegal, Mali, western Burkina Faso and southern Chad. Overall, good harvests are anticipated in most countries. Pastures are abundant and of good quality, notably in Mauritania. Pest infestations (mostly grasshoppers, blister beetles and floral insects) were reported in Cape Verde, Niger, and Senegal. A small outbreak of De sert Locusts occurred in northern Mali as a result of exceptionally good breeding conditions. Limited breeding has also been reported in Mauritania. Elsewhere, no significant developments are expected.
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