نتایج جستجو برای: enzymatic activity of soil

تعداد نتایج: 21260003  

Journal: :Agronomy 2022

The usage of grassland significantly affects the microbial and biochemical parameters soil epipedons. use grasslands (by mowing, grazing, mowing grazing) dominance bacteria in abundance relative to fungal populations. This was particularly noticeable when manual applied. In general, highest number microorganisms occurred during spring summer, which should be associated with intensity growth roo...

Journal: :International Journal of Plant and Soil Science 2023

Arsenic (As) poses a pervasive environmental contamination problem on global scale. Human activities have significantly contributed to the extensive presence of arsenic in soils. Recently, there has been growing interest exploring potential biochar addressing issue As-contaminated This study focused evaluating effects two types biochar, namely straw and iron-modified composition soil microbial ...

Journal: :Revista Brasileira de Ciências Agrárias - Brazilian Journal of Agricultural Sciences 2019

2014
Xiangping Tan Baoni Xie Junxing Wang Wenxiang He Xudong Wang Gehong Wei

Here the spatial distribution of soil enzymatic properties in agricultural land was evaluated on a county-wide (567 km(2)) scale in Changwu, Shaanxi Province, China. The spatial variations in activities of five hydrolytic enzymes were examined using geostatistical methods. The relationships between soil enzyme activities and other soil properties were evaluated using both an integrated total en...

2016
Xuesong Luo Xiaoqian Fu Yun Yang Peng Cai Shaobing Peng Wenli Chen Qiaoyun Huang

We studied microbial communities in two paddy soils, which did not receive nitrogen fertilization and were distinguished by the soil properties. The two microbial communities differed in the relative abundance of gram-negative bacteria and total microbial biomass. Variability in microbial communities between the two fields was related to the levels of phosphorus and soil moisture. Redundancy an...

2010
F. Gallardo C. Bravo G. Briceño M. C Diez

Sludge from kraft mill wastewater treatment was applied on two soils derived from volcanic ashes and, the effect on biological parameters of the soils was evaluated. The soils used in this study were an Andisol belonging of Gorbea Series and an Ultisol belonging of Collipulli Series. The sludge was added at rates of 0, 10, 20, 30 and 50 t ha. Previously, germination of red clover (Trifolium pra...

رضوی , فخرالملوک, فرازی , بیژن, ملک نیا , ناصر,

Background and purpose: Breast cancer is the main cause of mortality in women Çancer patients, and Çomprises 33% of the total cancer in women. With that in mind, more than one third of the breast cancer patients refere for the treatment in the late stageof the disease. So it was decided to have a survey on the method of diagnosis in the primary stages Materials and Methods: Ïn this study,...

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