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Peter A. Leffelaar
Wageningen University and Research Centre
94Publications
28H-index
2,874Citations
Publications 94
Newest
#1K.S. Ezui (WUR: Wageningen University and Research Centre)H-Index: 2
#2Peter A. Leffelaar (WUR: Wageningen University and Research Centre)H-Index: 28
Last.Ken E. Giller (WUR: Wageningen University and Research Centre)H-Index: 77
view all 5 authors...
Abstract We adapted and used a crop simulation model based on light interception and use efficiency (LINTUL-Cassava) to improve our understanding of water-limited yields of cassava under rain-fed conditions in Southern Togo. Data collected in four different fields in two locations, Sevekpota and Djakakope, during two consecutive growing seasons from 2012 to 2014 were used. Data from Sevekpota in Year 2, when a larger amount of rainfall was received than in Year 1, were used for model parameteris...
1 CitationsSource
#1Susanne Rolinski (PIK: Potsdam Institute for Climate Impact Research)H-Index: 18
#2Christoph Müller (PIK: Potsdam Institute for Climate Impact Research)H-Index: 61
Last.Kirsten Thonicke (PIK: Potsdam Institute for Climate Impact Research)H-Index: 30
view all 13 authors...
Grassland management affects the carbon fluxes of one-third of the global land area and is thus an important factor for the global carbon budget. Nonetheless, this aspect has been largely neglected or underrepresented in global carbon cycle models. We investigate four harvesting schemes for the managed grassland implementation of the dynamic global vegetation model (DGVM) Lund–Potsdam–Jena managed Land (LPJmL) that facilitate a better representation of actual management systems globally. We desc...
8 CitationsSource
#1K.S. Ezui (WUR: Wageningen University and Research Centre)H-Index: 2
#2A.C. Franke (University of the Free State)H-Index: 19
Last.Ken E. Giller (WUR: Wageningen University and Research Centre)H-Index: 77
view all 8 authors...
Abstract We studied the effects of potassium (K) and its interactions with nitrogen (N), phosphorus (P) and harvest time on the productivity, water use efficiency (WUE) and radiation use efficiency (RUE) of cassava under rain-fed conditions. A field experiment was conducted during two consecutive years on K-deficient soils in Djakakope and on relatively K-rich soils in Sevekpota in Southern Togo, West Africa. Fifteen fertiliser combinations involving K and N rates of 0, 50 and 100 kg ha −1 each,...
3 CitationsSource
#1Guohua Li (CAU: China Agricultural University)H-Index: 4
#2Martin K. van Ittersum (WUR: Wageningen University and Research Centre)H-Index: 46
Last.Fusuo Zhang (CAU: China Agricultural University)H-Index: 89
view all 7 authors...
Phosphorus (P) is a finite natural resource and is essential for food production. The amount of P involved in food production in China relative to the increase of food production has increased dramatically over the past decades, which has led to serious environmental pollution. Because of China's enormous share in global P fertilizer production (30%) and consumption (37.5%), it evidently plays a crucial role in developing a more sustainable use of this essential resource for agriculture. We perf...
9 CitationsSource
#1Guohua Li (CAU: China Agricultural University)H-Index: 4
#2Gaoqiang HuangH-Index: 2
Last.Fusuo Zhang (CAU: China Agricultural University)H-Index: 89
view all 6 authors...
High extraction of phosphate reserves and low phosphorus utilization efficiency in the food chain in China result in large P losses and serious environmental pollution. The P fertilizer industry, soil P surplus, livestock manure P and wastewater P recycling have been identified as the priority sectors based on summarizing several systemic and in-depth reviews of P flows analysis. Mineral P fertilizer production has reached 7.4 Mt P in 2012, which is more than seven times the value in 1980. The l...
9 CitationsSource
#1Alejandro Morales (WUR: Wageningen University and Research Centre)H-Index: 9
#2Peter A. Leffelaar (WUR: Wageningen University and Research Centre)H-Index: 28
Last.Francisco J. Villalobos (UCO: University of Córdoba (Spain))H-Index: 23
view all 5 authors...
Abstract A model of potential olive oil production is presented, based on a three-dimensional model of canopy photosynthesis and respiration and dynamic distribution of assimilates among organs. The model is used to analyse the effects of planting density (high and super-high density orchards with 408 and 1667 trees ha −1 , respectively) and climate change (Δ T of 4 °C and CO 2 concentration of 740 ppm) on olive oil production. To evaluate its predictive power, the simulations were tested with p...
9 CitationsSource
#1A. Castañeda-Vera (UPM: Technical University of Madrid)H-Index: 1
#2Peter A. Leffelaar (WUR: Wageningen University and Research Centre)H-Index: 28
Last.M. I. Mínguez (UPM: Technical University of Madrid)H-Index: 1
view all 5 authors...
In crop insurance, the accuracy with which the insurer quantifies the actual risk is highly dependent on the availability on actual yield data. Crop models might be valuable tools to generate data on expected yields for risk assessment when no historical records are available. However, selecting a crop model for a specific objective, location and implementation scale is a difficult task. A look inside the different crop and soil modules to understand how outputs are obtained might facilitate mod...
12 CitationsSource
#1G. Taulya (IITA: International Institute of Tropical Agriculture)H-Index: 5
#2Piet J.A. van Asten (IITA: International Institute of Tropical Agriculture)H-Index: 12
Last.Ken E. Giller (WUR: Wageningen University and Research Centre)H-Index: 77
view all 4 authors...
The phenology of East African highland banana (Musa acuminata AAA-EA, hereafter referred to as ‘highland banana’) is poorly understood. We tested three hypotheses: (1) the physiological age at flowering is independent of site effects, (2) there is no difference in threshold size at flowering between sites with different growth potential, and (3) morphological and physiological components of highland banana relative growth rate (RGR) contribute equally to mitigate growth reduction in response to ...
5 CitationsSource
#1A.P. Schrier-Uijl (WUR: Wageningen University and Research Centre)H-Index: 10
#2Petra S. Kroon (ECN: Energy Research Centre of the Netherlands)H-Index: 13
Last.Elmar M. Veenendaal (WUR: Wageningen University and Research Centre)H-Index: 34
view all 8 authors...
A. P. Schrier-Uijl1, P. S. Kroon2, D. M. D. Hendriks3, A. Hensen2, J. Van Huissteden4, P. A. Leffelaar5, F. Berendse1, and E. M. Veenendaal1 1Nature Conservation and Plant Ecology, Wageningen University, Droevendaalse steeg 3a, 6708 PD Wageningen, the Netherlands 2Energy Research Centre of the Netherlands (ECN), Department of Air Quality and Climate Change, 1755 LE Petten, the Netherlands 3Deltares, Department of Soil and Groundwater Systems, Princetonlaan 6, 3584 CB Utrecht, the Netherlands 4Hy...
Source
#1Guohua Li (CAU: China Agricultural University)H-Index: 4
#2Haigang Li (CAU: China Agricultural University)H-Index: 17
Last.Fusuo Zhang (CAU: China Agricultural University)H-Index: 89
view all 5 authors...
In order to identify the phosphorus species and concentration in animal manure, we comparatively characterized phosphorus in dairy manure, swine manure, and broiler litter, using a sequential procedure, a simplified two-step procedure (NaHCO3/NaOH+EDTA), and a solution Phosphorus-31 Nuclear Magnetic Resonance (31P-NMR) spectroscopy procedure. In the sequential procedure, deionized water extracted 39, 22, and 32%; NaHCO3 extracted 48, 26, and 37%; NaOH extracted 8, 9, and 13.8%; and HCl extracted...
28 CitationsSource
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