Use of Diatomaceous Earth as a Silica Supplement on Potted Ornamentals
نویسندگان
چکیده
منابع مشابه
Crystalline silica exposure and lung cancer mortality in diatomaceous earth industry workers: a quantitative risk assessment.
OBJECTIVE To use various exposure-response models to estimate the risk of mortality from lung cancer due to occupational exposure to respirable crystalline silica dust. METHODS Data from a cohort mortality study of 2342 white male California diatomaceous earth mining and processing workers exposed to crystalline silica dust (mainly cristobalite) were reanalyzed with Poisson regression and Cox...
متن کاملDiatomaceous Earth for Pest Control
Least toxic physical and chemical solutions are often part of an IPM program. Various forms of amorphous silica are commonly used as part of this strategy. Diatomaceous earth and silica gel are used in various physical formulations with or without added pesticide. The type of silica and the formulation depend on the target pest. In this issue advantages and disadvantages of diatomaceous earth a...
متن کاملIn vitro cytotoxicity and quantitative silica analysis of diatomaceous earth products.
Mouse peritoneal macrophages were used to evaluate the relative cytotoxicity of a series of diatomaceous earth products in vitro. The amorphous and crystalline silica content of the products was determined by a combination of infrared spectroscopy and x ray powder diffraction techniques. The cytotoxicities of the high cristobalite content flux calcined materials were similar to that of the stan...
متن کاملCrystalline silica exposure, radiological silicosis, and lung cancer mortality in diatomaceous earth industry workers.
BACKGROUND The role of silicosis as either a necessary or incidental condition in silica associated lung cancer remains unresolved. To address this issue a cohort analysis of dose-response relations for crystalline silica and lung cancer mortality was conducted among diatomaceous earth workers classified according to the presence or absence of radiological silicosis. METHODS Radiological sili...
متن کاملthe effect of lexical and grammatical collocation instruction through input flooding versus awareness raising on short-term and delayed retention as well a active use
this study attempted to explore if teaching english collocations through two different modes of awareness-raising and input flooding has any possible differential effect on immediate retention as well as retention in a delayed assessment. it also compared the possible differential effect of teaching english collocations implicitly and explicitly on actively using the items in writing. m...
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ژورنال
عنوان ژورنال: Horticulturae
سال: 2019
ISSN: 2311-7524
DOI: 10.3390/horticulturae5010021