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Conference Paper 1990

Effect of successive cuttings on nodulation and nitrogen fixation of Leucaena leucocephala using 15N dilution and the difference methods

Autor: Sanginga, N. Zapata, F. Danso, S.K.A. Bowen, G.D.

Despite the widespread use of Leucaena leucocephala in alley cropping systems, little information is available on the effect of different magagement practices on its nitrogen fixation. We studied the effects of three successive cuttings at 12 week intervals on nodulation and nitrogen fixation of ...

Enlace original: https://cgspace.cgiar.org/handle/10568/101813

Investigación en Agricultura

ISOTOPE DILUTION METHOD

LEUCAENA LEUCOCEPHALA

NODULATION

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Sanginga, N. , Zapata, F. , Danso, S.K.A. , Bowen, G.D. , [Effect of successive cuttings on nodulation and nitrogen fixation of Leucaena leucocephala using 15N dilution and the difference methods] , Effect of successive cuttings on nodulation and nitrogen fixation of Leucaena leucocephala using 15N dilution and the difference methods

Journal Article 1990

Assessment of genetic variability for N2 fixation between and with provenance of Leucaena leucocephala and Acacia albida estimated by 15N labelling techniques

Autor: Sanginga, N. Bowen, G.D. Danso, S.K.A.

Nitrogen fixed in 13 provenances of Acacia albida and 11 isolines of Leucaena leucocephala inoculated with effective Rhizobium strains was measured by 15N techniques and the total N difference method. In the test soil, on the average, L. leucocephala derived about 65% of its total N from atmosphe...

Enlace original: https://cgspace.cgiar.org/handle/10568/101818

Investigación en Agricultura

GENETIC VARIABILITY

LEUCAENA LEUCOCEPHALA

NITROGEN FIXATION

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Sanginga, N. , Bowen, G.D. , Danso, S.K.A. , [Assessment of genetic variability for N2 fixation between and with provenance of Leucaena leucocephala and Acacia albida estimated by 15N labelling techniques] , Assessment of genetic variability for N2 fixation between and with provenance of Leucaena leucocephala and Acacia albida estimated by 15N labelling techniques

Journal Article 1990

Genetic variability in symbiotic nitrogen fixation within and between provenances of two Casuarina species using the 15Nlabelling methods

Autor: Sanginga, N. Bowen, G.D. Danso, S.K.A.

Differences in the nitrogen-fixing abilities of provenances of Casuarina equisetifolia and C. cunninghamiana were assessed in pot experiments. Three methods, the 15N isotope dilution, the A value and total N difference were used to measure N2 fixed. There was a good agreement between the A value ...

Enlace original: https://cgspace.cgiar.org/handle/10568/101817

Investigación en Agricultura

NITROGEN FIXATION

CASUARINA EQUISETIFOLIA

CASUARINA CUNNINGHAMIANA

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Sanginga, N. , Bowen, G.D. , Danso, S.K.A. , [Genetic variability in symbiotic nitrogen fixation within and between provenances of two Casuarina species using the 15Nlabelling methods] , Genetic variability in symbiotic nitrogen fixation within and between provenances of two Casuarina species using the 15Nlabelling methods

Conference Paper 1992

Biological nitrogen fixation in trees in agroecosystems: twenty years of biological nitrogen fixation research in Africa.

Autor: Danso, S.K.A.

With the low input of fertilizers into African farming systems, it is necessary to harness biological nitrogen fixation to its fullest extent. The greatest potential, at least in the short term, lies in nitrogen fixation in grain and pasture legumes and in nitrogen-fixing trees. To maximise nitro...

Enlace original: https://cgspace.cgiar.org/handle/10568/100013

Investigación en Agricultura

NITROGEN FIXATION

FERTILIZERS

COWPEAS

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Danso, S.K.A. , [Biological nitrogen fixation in trees in agroecosystems: twenty years of biological nitrogen fixation research in Africa.] , Biological nitrogen fixation in trees in agroecosystems: twenty years of biological nitrogen fixation research in Africa.

Journal Article 1996

Field measurements of nitrogen fixation in leguminous trees used in agroforestry systems: influence of 15Nlabelling approaches and reference trees

Autor: Sanginga, N. Danso, S.K.A. Zapata, F.

Appropriate 15N-labeling methods are crucial for estimating N2-fixation in trees used in agroforestry systems. A 4-year field experiment was conducted on an Alfisol in Southwestern Nigeria to compare the estimates of Na fixed in Leucaena leucocephala, using two non-N2-fixing leguminous trees, Sen...

Enlace original: https://cgspace.cgiar.org/handle/10568/101018

Investigación en Agricultura

LEUCAENA LEUCOCEPHALA

ISOTOPE DILUTION METHOD

SPLIT APPLICATIONS

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Sanginga, N. , Danso, S.K.A. , Zapata, F. , [Field measurements of nitrogen fixation in leguminous trees used in agroforestry systems: influence of 15Nlabelling approaches and reference trees] , Field measurements of nitrogen fixation in leguminous trees used in agroforestry systems: influence of 15Nlabelling approaches and reference trees

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Effect of successive cuttings on nodulation and nitrogen fixation of Leucaena leucocephala using 15N dilution and the difference methods

Assessment of genetic variability for N2 fixation between and with provenance of Leucaena leucocephala and Acacia albida estimated by 15N labelling techniques

Genetic variability in symbiotic nitrogen fixation within and between provenances of two Casuarina species using the 15Nlabelling methods

Biological nitrogen fixation in trees in agroecosystems: twenty years of biological nitrogen fixation research in Africa.

Field measurements of nitrogen fixation in leguminous trees used in agroforestry systems: influence of 15Nlabelling approaches and reference trees