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Cropping systems and rotations development for improving shifting cultivation and related intermittent production systems in tropical Africa


, : Cropping systems and rotations development for improving shifting cultivation and related intermittent production systems in tropical Africa. Soils bulletin Food and Agriculture Organization of the United Nations: 3) 121-140


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Other references

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Davis, R.G.; Wiese, A.F., 1965: Effect of soil types, moisture, temperature and planting depth on germination of 3 weeds. Amaranthus retroflexus, Echinochloa crus-galli and Schedonnardus paniculatus were sown 0, 0.25, 0.5, 1, 2 and 4 in. deep in Pullman silty clay loam and Amarillo fine sandy loam soil. One half of the plots were maintained wet and the other half wer...

Jessen, K.A.; Satre, M.A., 1997: Regulation of mouse retinol binding protein gene expression. FASEB Journal 11(3): A424

Migo, E.M.; Montaldi, D.; Mayes, A.R., 2013: A visual object stimulus database with standardized similarity information. Although many visual stimulus databases exist, none has data on item similarity levels for multiple items of each kind of stimulus. We present such data for 50 sets of grayscale object photographs. Similarity measures between pictures in each set...

Ovcharenko, D.A., 1968: Seasonal dynamics and development of Ashworthius sidemi (Trichostrongylidae), Oesophagostomum radiatum and O. venulosum (Strongylidae) of Cervus nippon hortulorum. Larvae of Ashworthius sidemi, Oesophagostomum radiatum and O. venulosum are described and differentiated. If the faeces of a deer containing eggs of these nematodes were exposed outdoors to air temperature of -10 to 15 degrees C. for more than 4 h...

Morita M., 1972: Seasonal changes of thyroid function. Kaku Igaku 9(5): 517

Stompor Chrzan, E.W.A., 2005: Assessment of the effectiveness of plant preparations for the protection of bean seedlings against Rhizoctonia solani Kuhn in conditions of artificial infection. In a pot experiment, the protective activity against R. solani of aqueous extracts (macerates), prepared from Bergenia crassifolia, Berberis vulgaris, Mentha piperita, Salvia officinalis, Vaccinium myrtillus, Chelidonium majus, Stachys officinalis...

Varlotto, J.M.; Recht, A.; Flickinger, J.C.; Medford-Davis, L.N.; Dyer, A-Marie.; DeCamp, M.M., 2010: Varying recurrence rates and risk factors associated with different definitions of local recurrence in patients with surgically resected, stage I nonsmall cell lung cancer. The objective of this study was to examine the effects of different definitions of local recurrence on the reported patterns of failure and associated risk factors in patients who undergo potentially curative resection for stage I nonsmall cell lu...

Imanishi, A.; Yamane, S.; Nakato, Y., 2008: Si(111) surface modified with alpha,beta-unsaturated carboxyl groups studied by MIR-FTIR. A Si(111) surface modified with alpha,beta-unsaturated carboxyl groups was fabricated using activated alkynes such as propiolic acid and propiolic acid methyl ester via hydrosilylation reaction. The obtained coverage of carboxyl groups was roughly...

Bikram Singh; Agrawal, P.K.; Thakur, R.S., 1989: Long chain esters of Aesculus indica. Two unsaturated and two saturated aliphatic esters were isolated from trichloroethylene extracts of seeds of Indian horse chestnut (Aesculus indica) collected from Kulu, Himachal Pradesh, India. The compounds were identified using nuclear magnetic...