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The role of soil fertility in sustainable agriculture with special reference to sub-Saharan Africa


, : The role of soil fertility in sustainable agriculture with special reference to sub-Saharan Africa. Entwicklung + Landlicher Raum 30(4): 3-6

The major causes and extent of soil degradation in sub Saharan Africa are outlined briefly.

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Thall E.H.; Reinhart W.J.; Sabol D., 1986: Linear regression software for intraocular lens implant power calculation. Regression equations for the calculation of intraocular lens power are popular. Because some of the variables in cataract surgery are surgeon-specific, every surgeon should ideally have a personalized formula. We have developed software enabling t...

Kumamoto, J.; Scora, R.W.; Lawton, H.W.; Clerx, W.A., 1987: Mystery of the forbidden fruit: historical epilogue on the origin of the grapefruit, Citrus paradisi (Rutaceae). The origin of the grapefruit and the confusion of early taxonomists in its identification and description are examined. It is suggested that C. paradisi arose as an apomictically stabilized hybrid between C. grandis and C. sinensis somewhere in th...

Avogaro, P.; Bittolo-Bon, G.; Cazzolato, G., 1978: Effect of sorbinicate nicotinic hexa ester of d glucitol on the plasma free fatty acids and plasma levels of nicotinic acid after sorbinicate administration. Nicotinic hexaester of D-glucitol (sorbinicate) was administered orally to 8 patients with primary hyperlipemia, significantly reducing the FFA [free fatty acid] levels and inducing less rebound than did nicotinic acid. The plasma levels of total...

Kaplan S.L.; Kron R.E.; Phoenix M.D.; Litt M.; Finnegan L.P., 1974: Correlations between scores on the brazelton neo natal assessment scale measures of new born sucking behavior and birth weight in infants born to narcotic addicted mothers. Pediatric Research 8(4): 344

Boucsein, C.; Zacharias, R.; Faerber, K.; Pavlovic, S.; Hanisch, U.K.rsten; Kettenmann, H., 2003: Purinergic receptors on microglial cells: Functional expression in acute brain slices and modulation of microglial activation in vitro. Microglial cells are the pathologic sensors in the brain. ATP released from damaged cells is a candidate for signalling neural injury to microglia. Moreover, ATP is an extracellular messenger for propagating astrocyte activity in the form of Ca2+...

Dubreuil, A.; Hollande, E.; Bouley, G.; Boudene, C., 1979: Effects of lead microparticles on the growth characteristics of the BHK21 fibroblast cell line. BHK21 fibroblastic cells were exposed in vitro to lead microparticles produced by pyrolysis of the organic lead used as an antiknock agent in gasoline. Although non-cytolethal, 10 micrograms of lead/10(6) cells rapidly inhibited cell growth kineti...

Stewart, R.E.; Lovrien, E.W.; Wyandt, H.E., 1971: Unusual dental findings in a patient with a rare bone dysplasia (dyschondrosteosis) and a chromosomal anomaly. Oral Surgery, Oral Medicine, and Oral Pathology 32(4): 596-604

Llauradó, G.; Ceperuelo-Mallafré, Vòria.; Vilardell, C.; Simó, R.; Freixenet, Núria.; Vendrell, J.; González-Clemente, Jé.Miguel., 2012: Arterial stiffness is increased in patients with type 1 diabetes without cardiovascular disease: a potential role of low-grade inflammation. To investigate the relationship between arterial stiffness and low-grade inflammation in subjects with type 1 diabetes without clinical cardiovascular disease. Sixty-eight patients with type 1 diabetes and 68 age- and sex-matched healthy subjects...

Smith D.G.; Smith S., 1988: Parental rank and reproductive success of natal rhesus males. In primates, the relationship between the ranks of parents and those of their sons has not been studied systematically, yet it has important implications for sociobiological theories. The influence of parents' ranks upon the ranks and reprodu...