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An Evaluation of Plotless Sampling Using Vegetation Simulations and Field Data from a Mangrove Forest

• Renske Hijbeek, Nico Koedam, Md Nabiul Islam Khan, James Gitundu Kairo, Johan Schoukens, Farid Dahdouh-Guebas
• PloS one
• 2013

In vegetation science and forest management, tree density is often used as a variable. To determine the value of this variable, reliable field methods are necessary. When vegetation is sparse or not… (More)

Nitrogen fertiliser replacement values for organic amendments appear to increase with N application rates

• Renske Hijbeek, Hein F. M. ten Berge, Andrew P. Whitmore, Dietmar Barkusky, Jaap Jan Schröder, Martin K. van Ittersum
• Nutrient Cycling in Agroecosystems
• 2017

Nitrogen (N) supply from organic amendments [such as farmyard manure (FYM), slurries or crop residues] to crops is commonly expressed in the amendment’s Nitrogen Fertiliser Replacement Value (NFRV).… (More)

Do organic inputs matter – a meta-analysis of additional yield effects for arable crops in Europe

• Renske Hijbeek, Martin K. van Ittersum, Hein F. M. ten Berge, Gerrit Gort, Heide Spiegel, Andrew P. Whitmore
• Plant and Soil
• 2016

Organic inputs have a positive effect on the soil organic matter balance. They are therefore an important asset for soil fertility and crop growth. This study quantifies the additional yield effect… (More)

An Evaluation of the Plant Density Estimator the Point-Centred Quarter Method (PCQM) Using Monte Carlo Simulation

• Md Nabiul Islam Khan, Renske Hijbeek, +5 authors Farid Dahdouh-Guebas
• PloS one
• 2016

BACKGROUND In the Point-Centred Quarter Method (PCQM), the mean distance of the first nearest plants in each quadrant of a number of random sample points is converted to plant density. It is a quick… (More)

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