The NEN draft standards for biostimulants do not guarantee the products are effective Biostimulantia Dr. ir. Aad Termorshuizena, prof. dr. Ken Gillerb, prof. dr. ir. Martin van Ittersumb, ir. Romke Postmac, ir. Brent Riechelmanc,… Posted on 26 October 2023by Aad Termorshuizen
Reststoffen voor de akkerbouw: zo eenvoudig nog niet Biostimulantia, Soil quality, Compost, Humic acids, Plant pathogens In opdracht van BO-Akkerbouw heb ik samen met Romke Postma (Nutriënten Management Instituut) een deskstudie gedaan naar hoe je reststoffen… Posted on 10 March 2021by Aad Termorshuizen
Overview biostimulants Biostimulantia Last week I provided the Ducth Interbranche Organisation Arable Crops with the latest developments on biostimulants. You can download my… Posted on 6 January 2020by Aad Termorshuizen
Wat shall we do with mycorrhiza in agriculture and horticulture? Biostimulantia, Soil quality, mycorrhiza There is no doubt that mycorrhizal fungi are advantageous to many plants. For example, they provide nutrients (especially P, but… Posted on 16 October 2018by Aad Termorshuizen
Is biochar a soil improver? Biostimulantia, Soil quality Research on the agronomic application of biochar was inspired on the high quality of the so-called “terra preta”-soils from the… Posted on 10 July 2018by Aad Termorshuizen
Presentation on plant biostimulants Biostimulantia On May 24 2018, I gave a presentation on plant biostimulants at a meeting of the Royal Dutch Plant Pathological… Posted on 24 May 2018by Aad Termorshuizen
Implementation of biostimulants and soil improvers in EU regulation Biological control, Biostimulantia Short summary: The procedure that will be followed to check the claimed effects of biostimulants is essential for the credibility… Posted on 17 January 2018by Aad Termorshuizen
Managing Verticillium-wilt using organic residues Biostimulantia, Soil-borne pathogens, Compost Verticillium dahliae incites wilt in a wide variety of crops, ranging from strawberries and potatoes to olive and cotton. Because… Posted on 4 January 2018by Aad Termorshuizen
Biostimulants, biocontrol agents and the Fertilising Products Regulation Biological control, Biostimulantia Plant biostimulants are substances that strengthen the plant. At the recent biostimulants congress in Miami, the definition of biostimulants as… Posted on 19 December 2017by Aad Termorshuizen
Humic acids tested in a 3-yr pot experiment Biostimulantia, Humic acids Humic acids are increasingly popular as soil conditioner. While many short-duration experiments have been done (see my earlier item), Ciarkowska… Posted on 22 November 2017by Aad Termorshuizen
Praktijkexperiment met humuszuren en vrijlevende N-bindende bacteriën in suikerriet Biostimulantia, Humic acids, Free-living N-binding bacteria Quite some conclusions on the effects of humic acids / humic substances and free-living N-binding bacteria are based on short… Posted on 7 November 2017by Aad Termorshuizen
Meta-review on humic acids Biostimulantia, Humic acids Humic acids are popular as biostimulant. On the effects of humic substances, Rose & al. published in 2014 a meta-review…. Posted on 7 November 2017by Aad Termorshuizen
Effects of EM/Bokashi evaluated Biostimulantia In 2008 the department of Biological Farming Systems of Wageningen University studied the effects of EM (“effective microorganisms”; see here… Posted on 3 October 2017by Aad Termorshuizen
