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Journal Article 2006

Plant-available P for maize and cowpea in P-deficient soils from the Nigerian Northern Guinea savanna : Comparison of E- and L-values

Autor: Pypers, Pieter Loon, L. van Diels, J. Abaidoo, R.C. Smolders, E Merckx, R.

There are several indications that legumes are capable of accessing sparingly soluble phosphorus (P) in the soil through root-induced processes. We hypothesize that this plant-induced mobilization of P can be demonstrated if the plant accessible P assessed by isotopic dilution ( L-value ) exceeds...

Enlace original: https://cgspace.cgiar.org/handle/10568/43960

Investigación en Agricultura

MAIZE

COWPEAS

NUTRIENT AVAILABILITY

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Pypers, Pieter , Loon, L. van , Diels, J. , Abaidoo, R.C. , Smolders, E , Merckx, R. , [Plant-available P for maize and cowpea in P-deficient soils from the Nigerian Northern Guinea savanna : Comparison of E- and L-values] , Plant-available P for maize and cowpea in P-deficient soils from the Nigerian Northern Guinea savanna : Comparison of E- and L-values

Journal Article 2005

Long-term integrated soil fertility management in South-western Nigeria : Crop performance and impact on the soil fertility status

Autor: Vanlauwe, Bernard Diels, J. Sanginga, Nteranya Merckx, R.

Crop response, tree biomass production and changes in soil fertility characteristics were monitored in a long-term (1986–2002) alley-cropping trial in Ibadan, Nigeria. The systems included two alley cropping systems with Leucaena leucocephala and Senna siamea on the one hand and a control (no-tre...

Enlace original: https://cgspace.cgiar.org/handle/10568/43641

Investigación en Agricultura

SOIL FERTILITY

ALLEY CROPPING

LEUCAENA LEUCOCEPHALA

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Vanlauwe, Bernard , Diels, J. , Sanginga, Nteranya , Merckx, R. , [Long-term integrated soil fertility management in South-western Nigeria : Crop performance and impact on the soil fertility status] , Long-term integrated soil fertility management in South-western Nigeria : Crop performance and impact on the soil fertility status

Journal Article 2001

Temporal variations in plant delta 13C values and implications for using the 13C technique in longterm soil organic matter studies

Autor: Diels, J. Vanlauwe, Bernard Sanginga, N. Coolen, E. Merckx, R.

The 13C natural labeling technique in combination with modeling could potentially be used to analyze SOM changes in long-term experiments involving complex cropping systems such as agroforestry systems. It requires information on quantity and 13C abundance of all plant materials entering the soil...

Enlace original: https://cgspace.cgiar.org/handle/10568/92684

Investigación en Agricultura

SOIL ORGANIC CARBON

CARBON FRACTIONATION

WEEDS

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Diels, J. , Vanlauwe, Bernard , Sanginga, N. , Coolen, E. , Merckx, R. , [Temporal variations in plant delta 13C values and implications for using the 13C technique in longterm soil organic matter studies] , Temporal variations in plant delta 13C values and implications for using the 13C technique in longterm soil organic matter studies

Journal Article 2001

Alley cropping with Senna siamea in southwestern Nigeria: 1 Recovery of 15N labelled urea by the alley cropping system

Autor: Vanlauwe, Bernard Sanginga, N. Merckx, R.

Improved cropping systems with in-situ production of organic matter require the input of additional inorganic N to maintain crop production in a sustainable way. For proper management of this fertilizer-N, it is necessary to quantify how the applied fertilizer N is used by the various components ...

Enlace original: https://cgspace.cgiar.org/handle/10568/92658

Investigación en Agricultura

ANION EXCHANGE CAPACITY

COWPEAS

MAIZE

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Vanlauwe, Bernard , Sanginga, N. , Merckx, R. , [Alley cropping with Senna siamea in southwestern Nigeria: 1 Recovery of 15N labelled urea by the alley cropping system] , Alley cropping with Senna siamea in southwestern Nigeria: 1 Recovery of 15N labelled urea by the alley cropping system

Journal Article 2001

Alley cropping with Senna siamea in southwestern Nigeria: 11 Dry matter, total N, and ureaderived N dynamics of the Senna and maize roots

Autor: Vanlauwe, Bernard Sanginga, N. Merckx, R.

Crop and tree roots are crucial in the nutrient recycling hypotheses related to alley cropping systems. At the same time, they are the least understood components of these systems. The biomass, total N content and urea-derived N content of the Senna and maize roots in a Senna-maize alley cropping...

Enlace original: https://cgspace.cgiar.org/handle/10568/92659

Investigación en Agricultura

ANION EXCHANGE CAPACITY

COWPEAS

FERTILIZER N

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Vanlauwe, Bernard , Sanginga, N. , Merckx, R. , [Alley cropping with Senna siamea in southwestern Nigeria: 11 Dry matter, total N, and ureaderived N dynamics of the Senna and maize roots] , Alley cropping with Senna siamea in southwestern Nigeria: 11 Dry matter, total N, and ureaderived N dynamics of the Senna and maize roots

Journal Article 2001

Nitrogen management in adequate input maizebased agriculture in the derived savanna benchmark zone of Benin Republic

Autor: Vanlauwe, Bernard Aihou, K. Houngnandan, P. Diels, J. Sanginga, N. Merckx, R.

Although the West-African moist savanna zone has a high potential for crop production, yields on farmers' fields are, on average, far below this potential, mainly due to the low use of external sources of nutrients. Since the mid-1990s, it has become clear that in order to upgrade crop production...

Enlace original: https://cgspace.cgiar.org/handle/10568/92660

Investigación en Agricultura

AGROFORESTRY

COWPEAS

CUT-AND-CARRY SYSTEMS

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Vanlauwe, Bernard , Aihou, K. , Houngnandan, P. , Diels, J. , Sanginga, N. , Merckx, R. , [Nitrogen management in adequate input maizebased agriculture in the derived savanna benchmark zone of Benin Republic] , Nitrogen management in adequate input maizebased agriculture in the derived savanna benchmark zone of Benin Republic

Journal Article 1998

Recovery of leucaena and dactyladenia residue nitrogen15 in alley cropping systems

Autor: Vanlauwe, Bernard Sanginga, N. Merckx, R.

Quantification of the fate of residue N is essential in low-input tropical cropping systems for the development of management practices that optimize N-use efficiency. The recovery of N from 15N-labeled leucaena (Leucaena leucocephala (Lam.) de Wit) and dactyladenia (Dactyladenia barteri (Hook f ...

Enlace original: https://cgspace.cgiar.org/handle/10568/95958

Investigación en Agricultura

CROPPING SYSTEMS

MAIZE

COWPEAS

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Vanlauwe, Bernard , Sanginga, N. , Merckx, R. , [Recovery of leucaena and dactyladenia residue nitrogen15 in alley cropping systems] , Recovery of leucaena and dactyladenia residue nitrogen15 in alley cropping systems

Journal Article 1998

Mineral N dynamics in bare and cropped Leucaena leucocephala and Dactyladenia barteri alley cropping systems after the addition of 15Nlabelled leaf residues

Autor: Vanlauwe, Bernard Diels, J. Duchateau, L. Sanginga, N. Merckx, R.

In tropical cropping systems with few external imputs, efficient management of mineral N derived from added organic residues is essential for the proper functioning of the system. We studied the dynamics of mineral Nitroden (N) in the top 100 cm of soil with a system tensiometers and suction cups...

Enlace original: https://cgspace.cgiar.org/handle/10568/100983

Investigación en Agricultura

CROPPING SYSTEMS

RESIDUES

BACTERIA

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Vanlauwe, Bernard , Diels, J. , Duchateau, L. , Sanginga, N. , Merckx, R. , [Mineral N dynamics in bare and cropped Leucaena leucocephala and Dactyladenia barteri alley cropping systems after the addition of 15Nlabelled leaf residues] , Mineral N dynamics in bare and cropped Leucaena leucocephala and Dactyladenia barteri alley cropping systems after the addition of 15Nlabelled leaf residues

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