نتایج جستجو برای: microelements fertilizers
تعداد نتایج: 14594 فیلتر نتایج به سال:
There is no doubt that several macro-/microelements and vitamins are key features to prevent malignancies in experimental studies on animals. Literature data and results of our own studies are strongly suggesting that for malignancies characterized by strong contribution of inflammatory response to environmental carcinogens such as lung, colorectal or prostate cancers, penetrance level can be r...
During pre-slaughter handling, poultry is exposed to a variety of co-acting stimuli: sudden displacement, vehicle movement, speeding up, vibrations, jolts, noise, lack of feed and water, restriction of natural behaviours, disturbance of flock hierarchy, restriction of living space, exposure to pain, and change of transport microclimate (Duncan, 1989; Broom, 1990; Mitchell and Kettlewell, 1998)....
Orthodontic miniscrews gained popularity in the last decade due to the possibility of reduced treatment time, low cost, small dimensions and low morbidity rate. Absolute anchorage with no dental side effects make orthodontic mini implants an attractive choice for orthodontists. Although these advantages provide optimal clinical solutions, some characteristics must be taken into account when cho...
The number of children affected by Autism Spectrum Disorders (ASD) is dramatically increasing as well as the studies aimed at understanding the risk factors associated with the development of ASD. Since the etiology of ASD is partly genetic and partly environmental, factors (i.e., heavy metals, pesticides) as well as lifestyle seem to have a key role in the development of the disease. ASD and C...
By using the techniques of tissue culture, bio-assay and laboratory analysis, this paper studied the effects of the allelopathic chemicals from pumpkin (Cucurbita moschata) roots on the seed germination and seedling growth of pumpkin, wheat (Triticum aestivum), and radish (Raphanus sativus). The pumpkin root was cultured on a sterile B5 media, and the concentrations of macro- and microelements,...
At the current level of development agricultural production there are facts environmental degradation due to use agrochemicals. The introduction scientifically sound ecological technology agriculture, which is based on system safety environment and human health, can prevent possible negative effects. To ensure sustainable modern chemicals in limited quantities, a problem their partial replaceme...
Long-term application of fertilizers containing P, especially organic fertilizers, usually increases the water soluble and available P of soil and at the same time may result in P accumulation in soil. Organic fertilizers may also increase movement of P in the soil profile that could result in surface and ground water pollution. An experiment was conducted on field plots that received three app...
Levels of Fe, Mn, Cu, Zn, Mo, Co, Ni, Se, Sn and Al were determined in 14 medicinal plants from Serbia, which are widely used in phytopharmacy as herbal teas. The following plants were investigated: yarrow (Achillea millefolium L.), basil (Ocimum hasilicum L.), St. John's wort (Hypericum perforatum L.), peppermint (Mentha x piperita L.), field horsetail (Equisetum arvense L.), stinging nettle (...
Plant stoichiometry in relation to environmental factors has recently received increasing attention. However, regulations and variations of plant elements in different environments are not well understood. We investigated homeostasis and variation of macroelements (C, N, P, K, Ca, Mg, and S), essential microelements (Fe, Mn, and Zn) and non-essential elements (Al) in Quercus variabilis leaves a...
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