About
21
Publications
10,870
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
162
Citations
Introduction
Ali Elhakeem condcuted his PhD and postdoc research at the Center for Crop Systems analysis and Soil Biology lab, Wageningen University & Research. Ali does research on species diversity and plant-plant interaction. His most recent publication is "Radish-based cover crop mixtures mitigate leaching and increase availability of nitrogen to the cash crop"
Current institution
Additional affiliations
November 2015 - November 2020
October 2013 - October 2013
March 2015 - October 2015
Publications
Publications (21)
In nature, plants exposed to touch by several means e.g. leaves touching with neighbours, passing animals, etc., which stimulates the plant and alters its behaviour. In this study, we have investigated the interactions between touched plants and their untouched neighbours through root exudates. We hypothesised that plants are able to detect signals...
Agricultural soils are at risk of nitrogen (N) leaching especially during the fallow period in autumn and winter. Cover crops are grown to capture soil mineral N that otherwise would leach to the groundwater. They can serve as green manure providing mineral N to the cash crop in spring. We investigated whether mixing species of cover crops can enha...
Growing cover crops promotes soil health as they retain nutrients during autumn/winter and provide organic matter to the soil biota, which in turn supplies nutrients to the main crop upon mineralisation in spring. Different cover crops have varying impacts on soil biology and nutrient dynamics due to the quantity and quality of plant material retur...
The “Healthy Soil - Healthy Future” initiative of Agrifirm’s innovation corridor Regenerative Agriculture aims to provide a comprehensive understanding of Regenerative Agriculture (RA), its objectives, practices and benefits, with a focus on the Dutch context.
Planting cover crops after harvest of the main crop has become a key practice in temperate agriculture to reduce N leaching and increase soil organic matter. However, the growth of cover crops can be affected by adverse weather. Growing mixtures is thought to increase yield and reduce variation in productivity, but quantitative information on this...
Context
Cover crops are sown in autumn after harvest of a main crop to capture residual nitrogen and to build biomass that will contribute to soil organic matter after being ploughed under. Mixtures are purportedly more productive than pure stands of single species.
Research problem
Dry matter accumulation in field crops can be separated in the pr...
Winter cover crops are grown in temperate regions to capture nitrogen, build organic matter in soil, and suppress weeds during autumn and winter. This thesis aimed to identify whether growing species mixtures instead of pure stands strengthens the ecosystem services provided by cover crops. Emphasis was given to productivity, resource capture and y...
Winter cover crops are used by farmers to cover the soil between two cash crops. Their aim is to reduce nutrient leaching by recovering nutrients from the soil and to produce biomass that will be incorporated into the soil to increase soil organic matter. Weather conditions in autumn and winter are usually challenging for cover crop growth and resi...
Mixtures of plant species are often higher yielding due to species complementarities. Such effects may be beneficial to agriculture but are under-used in practice. It is therefore important to demonstrate beneficial effects of mixtures that are easy to implement for farmers. Here, we study yield in mixtures of agricultural cover crops. We hypothesi...
Autumn cover crops are grown in between two cash crops to cover the soil, prevent leaching of nutrients and produce biomass that may be incorporated into the soil to enhance organic matter content. Weather conditions in autumn are variable and difficult to predict. They may be unfavorable for some but not necessarily all species. Hence, growing mix...
Plants can detect the presence of their neighbours and modify their growth behaviour accordingly. But the extent to which this neighbour detection is mediated by abiotic stressors is not well known. In this study we tested the acclimation response of Zea mays L. seedlings through belowground interactions to the presence of their siblings exposed to...
Transfer experiment data.
(XLSX)
Sharing experiment data.
(XLSX)
Root fractions of T_share, E_share and C_share plants.
(DOCX)
Data of chemical analyses of root exudates experiment data.
(XLSX)
Root fractions of ET_trans and EC_trans plants.
(DOCX)
Data root choice test.
(XLSX)
Data of chemical analyses of root exudates experiment data.
(XLSX)
In nature, plants exposed to touch by several means e.g. leaves touching with neighbours, passing animals, etc., which stimulates the plant and alters its behaviour. In this study, we have investigated the interactions between touched plants and their untouched neighbours through root exudates. We hypothesised that plants are able to detect signals...
Questions
Questions (3)
I am conducting a research on cover crops and I usually grow my trials between August and November. I need to know the total global radiation (accumulative global radiation per day) during the growing season at two locations; Scheemda in Netherlands and Grundhof in Germany in 2017. Unfortunately I can't find these information any where.
DO you a source for these information with a free access?
I am doing a field experiment with different cover crops cultivar-mixtures, and my target is to analyse the below ground biomass of each mixture. Beside the difficulty in sampling the below ground parts and cleaning the roots from soil, separation of organic matter (wheat straw in my case) from roots manually was almost impossible mission (putting the consumed time in consideration). I would like to ask this if anybody have a different suggestion or easier mechanism that I can use to estimate below ground biomass of my plant mixtures?
According to previous literature I should germinate maize seeds 7 days, then cut the root tip, basal meristem or the whole main apical root, then leave the seedling until they produce the lateral roots.
Do you have any idea what is the best date cut the apical root, and where I should cut it without negatively affect the plant growth?
