نتایج جستجو برای: soil aggregation

تعداد نتایج: 245141  

2016
Zhiyong Zhang Xiaoke Zhang Md. Mahamood Shuiqing Zhang Shaomin Huang Wenju Liang

A long-term fertilization experiment was conducted to examine the effects of different fertilization practices on nematode community composition within aggregates in a wheat-maize rotation system. The study was a randomized complete block design with three replicates. The experiment involved the following four treatments: no fertilizer, inorganic N, P and K fertilizer (NPK), NPK plus manure (NP...

2016
Rui Xiao Diwei Jiang George Christakos Xufeng Fei Jiaping Wu

Soil sealing (loss of soil resources due to extensive land covering for the purpose of house building, road construction etc.) and subsequent soil landscape pattern changes constitute typical environmental problems in many places worldwide. Previous studies concentrated on soil sealing in urbanized regions, whereas rural areas have not been given sufficient attention. Accordingly, this paper st...

2001
JIMMY O. ADEGOKE ANDREW M. CARLETON

Satellite-derived vegetation indices extracted over locations representative of midwestern U.S. cropland and forest for the period 1990–94 are analyzed to determine the sensitivity of the indices to neutron probe soil moisture measurements of the Illinois Climate Network (ICN). The deseasoned (i.e., departures from multiyear mean annual cycle) soil moisture measurements are shown to be weakly c...

Journal: :journal of nanostructures 2013
b. shareghi a. hashemian s. farhadian m. salavati-niasari b. saffar

protein aggregation is a problem in biotechnology. high temperature is one of the most important reasons to enhance enzyme inactivation and aggregation in industrial systems. this work focuses on the effect of tio2 and sio2 nanoparticles on refolding and reactivation of lysozyme. in the presence of tio2 and sio2 nanoparticles, after enzyme heat treatment at 98◦c for 30 min, not only aggregates ...

Journal: :modares journal of medical sciences: pathobiology 2009
majid sadeghizadeh

objective: to study the mechanisms involved in amyloid formation processes, we made a mammalian cell culture model of amylin aggregation and characterized its properties. materials and methods: amyloid fibrils were extracted from cho cells and binding affinity to thioflavin t and congo red was investigated. then the apple-green birefringence of extracted fibrils was detected under polarized li...

Journal: :Agriculture 2022

Conservation agriculture (CA), comprising of minimum soil disturbance and crop residue retention (>30%), with a diversified cropping system, has become increasingly popular around the world. It is recognized as sustainable practice to improve health by augmenting key properties. However, scanty information exists about effect CA practices on organic carbon (SOC), aggregation greenhouse gas e...

2008
MASATOSHI TANIGUCHI KOJI NAGAI NAKAKO ARAO TOMIHISA KAWASAKI TETSU SAITO YUMIKO MORITANI JUN TAKASAKI KAZUMI HAYASHI SHIGEO FUJITA KEN-ICHI SUZUKI SHIN-ICHI TSUKAMOTO

A novel platelet aggregation inhibitor, YM-254890, was isolated from the culture broth of strain QS3666. This strain was isolated from a soil sample collected at Okutama, Tokyo, Japan, and was identified as Chromobacterium sp. by morphological and physiological criteria. YM254890 was purified from the culture supernatant by solvent extraction, ODS and silica gel flash chromatography, followed b...

Journal: :Journal of rock mechanics and geotechnical engineering 2023

Soil stabilization using nanomaterials is an emerging research area although, to date, its investigation has mostly been laboratory-based and therefore requires extensive study for transfer practical field applications. The present advocates nano-calcium carbonate (NCC) material, a relatively unexplored nanomaterial additive, of low-plasticity fine-grained soil having moderate organic content. ...

Journal: :Applied and environmental microbiology 2011
Lu-Min Vaario Hannu Fritze Peter Spetz Jussi Heinonsalo Peter Hanajík Taina Pennanen

Fungal and actinobacterial communities were analyzed together with soil chemistry and enzyme activities in order to profile the microbial diversity associated with the economically important mushroom Tricholoma matsutake. Samples of mycelium-soil aggregation (shiro) were collected from three experimental sites where sporocarps naturally formed. PCR was used to confirm the presence and absence o...

2014
L. K. TIEMANN

Annual row cropping systems converted to perennial bioenergy crops tend to accrue soil C, likely a function of increased root production and decreased frequency of tillage; however, very little is known about the mechanisms governing the accrual and stability of this additional soil C. To address this uncertainty, we assessed the formation and stability of aggregates and soil organic C (SOC) po...

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