Hans-Joachim Santel's research while affiliated with University of Hohenheim and other places
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Publications (6)
Although clear evidence for benefits in crop production is partly missing, several natural compounds and microorganisms have been introduced to the market as biostimulants. They are supposed to enhance nutrient efficiency and availability in the rhizosphere, reduce abiotic stress, and improve crop quality parameters. Biostimulants often derive from...
Zusammenfassung
Herbizide Wirkstoffe werden in kommerziellen Produkten manchmal mit Safenern kombiniert, um die Verträglichkeit des Herbizids für die Kulturpflanze zu gewährleisten. Dabei regen Safener meist die Metabolisierung von Herbiziden in der Kulturpflanze an. Das Herbizid Isoxaflutole (IFT) wird in Mais mit dem Safener Cyprosulfamid (CSA) a...
Background:
Some maize post-emergence herbicides obtain their crop/weed se- lectivity only through the use of chemical crop safeners. Safeners improve the tolerance of maize to herbicidal active ingredients. In order to investigate the crop response to (cypro- sulfamide) spray application and seed treatment, greenhouse and field trials were con- d...
Sensor technologies are expedient tools for precision agriculture, aiming for yield protection while reducing operating costs. A portable sensor based on chlorophyll fluorescence imaging was used in greenhouse experiments to investigate the response of sugar beet and soybean cultivars to the application of herbicides. The sensor measured the maximu...
Roundup Ready® sugar beets are widely grown in the USA since their market introduction in 2005. The system has proven to be cost-efficient and reliable. However, the negative social image among consumers and politicians has prohibited the adoption of this technology in Europe. Seven field experiments were conducted over three years in Germany and t...
The efficacy, absorption, translocation, and metabolism of thiencarbazone-methyl (TCM) in hedge bindweed, field bindweed, ivyleaf morningglory, tall morningglory, and wild buckwheat were evaluated in greenhouse experiments and field trials. Forty-eight hours after foliar microapplication, 14C-TCM absorption was highest in ivyleaf morningglory (60%)...
Citations
... However, in contrast to amidosulfuron, iodosulfuron, mefenpyr-diethyl, and propoxycarbazone-sodium herbicides combined with prochloraz, tebuconazole, and proquinazid [40,41], sulfosulfuron protection combined with fungicides was the most effective in weed infestation reduction compared to single herbicide application. However, weed infestation was not observed after the application of biostimulator ComCat based on plant extracts [42]. ...
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... Rights reserved. the most significant spectral bands and perform weed classification based on discriminant analysis as well as in [149] to evaluate maize and weed response to herbicide applications. ...
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... The increase in these amino acids might be essential to the protective effect that this compound exerts against the herbicide. In addition to biomass production and ALS activity, the use of different photosynthetic parameters is commonly used as an indicator of the phytotoxic effects of many herbicide types [9,13,35,36]. Photosynthetic activity analysis through fluorescence is a quick, noninvasive method to check the physiological state of plants. This technique is based on the induction of fluorescence emission to a dark-adapted leaf. ...
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... The introduction of sugar beet varieties with high tolerant levels to glyphosate herbicide was one of these approaches for effective management of broad-leaved weeds in this crop (Khan 2010). Bezhin et al. (2015) reported 90% weed control efficacy in sugar beet using the tank mixture of pre-emergence application of 1.0 L ha À1 Goltix Gold, followed by 2-4 post-emergent applications of 1 L ha À1 Goltix Gold +1.5 L ha À1 Betanal Expert. ...
... From 24 HAT (18.7%) for I. purpurea and at 6 HAT (12.5%) for I. triloba, no increase in absorption of 14 C-aminocyclopyrachlor was observed. In a previous Skora Neto et al. (2000) observed a 14 C-glufosinate absorption of 6.6%, while Leonie et al. (2014) found an absorption of 14 C-thiencarbazone of 16.7% in I. purpurea, a percentage that is slightly below that observed in the present study for the same species. These relatively low percentages of absorption of 14 C-glufosinate, 14 C-thiencarbazone and 14 C-aminocyclopyrachlor in I. purpurea may correlate with poor post-emergence control. ...
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