نتایج جستجو برای: agricultural r
تعداد نتایج: 544555 فیلتر نتایج به سال:
This study used ex-post facto and correlation survey to investigate the influence of home environment on academic performance of senior secondary students in Adamawa State. The population of the study consisted of 8,548 students in class 2 in 2012/13 to 2013/14 academic sessions. A total sample of 900 students was drawn from the population using multi-stage random sampling technique to respond ...
Factors influencing the phosphorus limitation of benthic microorganisms were determined for four streams (two agricultural and two forested) in central New York State over an annual cycle. Phosphorus limitation was measured biweekly as specific alkaline phosphatase activity (APA) of sediment samples. Analysis of variance showed the forested streams (sites 2 and 4) to have significantly differen...
This study improves the estimation of the self-purification coefficient for runoff analysis of pollution load using geomorphological factors. Formerly, the assimilative capacity, K, was estimated using a single geomorphological factor, Horton's form ratio, St. Here, K was divided into two factors, namely, a watershed self-purification coefficient (K) and a watershed form ratio (S(f)). The water...
Improvement of phosphorus circulation in the soil is necessary to enhance phosphorus availability to plants. Phosphorus circulation activity is an index of soil's ability to supply soluble phosphorus from organic phosphorus in the soil solution. To understand the relationship among phosphorus circulation activity; bacterial biomass; pH; and Fe, Al, and Ca concentrations (described as mineral co...
The Marantaceae family is a diverse group of plants that has drawn the interest scientists and researchers worldwide due to their distinctive morphological characteristics, ecological economic relevance. Bangladesh Agricultural University Botanical Garden home an abundance species, making it useful resource for examining diversity significance this plant family. This present study was designed ...
In vitro studies have demonstrated atrazine-mediated induction of 7-ethoxyresorufin O-deethylase (EROD) activity. EROD is an enzyme active in the metabolism of many compounds, including many xenobiotics. These studies have suggested that atrazine may affect reproductive function by altering steroid metabolism. The goal of this study was to determine whether relationships could be detected betwe...
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