Kresoxim-methyl, a new broad spectrum foliar-applied strobilurin group of fungicide, undergoes rapid transformation in soil to form acid metabolite. In this paper, adsorption-desorption, leaching and persistence behaviour of kresoxim-methyl and its acid metabolite in Delhi (Inceptisol) soil has been investigated. The adsorption studies were carried out at initial concentrations of 1.5, 1, 0.8, ...

1 The relative importance of nicheand dispersal-mediated processes in structuring diverse tropical plant communities remains poorly understood. Here, we link mesoscale beta diversity to soil variation throughout a lowland Bornean watershed underlain by alluvium, sedimentary and granite parent materials ( c . 340 ha, 8–200 m a.s.l.). We test the hypothesis that species turnover across the habita...

Ammonia oxidizing archaea (AOA) and bacteria (AOB) drive nitrification and their population dynamics impact directly on the global nitrogen cycle. AOA predominate in the majority of soils but an increasing number of studies have found that nitrification is largely attributed to AOB. The reasons for this remain poorly understood. Here, amoA gene abundance was used to study the distribution of AO...

An investigation was carried out to assess the suitability of soils brought in for use as subgrade materials Benin- Sobe axis Benin – Akure road by testing bearing capacity using California Bearing Ratio (CBR)test. The passes through four soil parent materials: - Coastal Plain Sand- CPS, Imo-Shale (IS), BendeAmaki (BA) and False Bedded or Basement Complex (FB).Soil samples were collected from p...

BACKGROUND The aim of the present study is to evaluate whether the effects of a short, six session version of an evidence-based parent training programme (The Incredible Years), delivered in a non-clinical community sample in the northern Norway, are maintained 4 years following the initial intervention. METHOD Data were collected primarily from mothers in a randomized controlled trial (N = 1...

Natural and synthetic steroidal hormones can be carried to agricultural soil through fertilization with municipal biosolids, livestock manure, or poultry manure. The persistence and pathways of dissipation of [4-(14)C]-testosterone and of [4-(14)C]-17beta-estradiol in organic-amended soils were investigated using laboratory microcosms. Testosterone dissipation was investigated over a range of a...

Although people have always classified soils, it is only since themid 19th century that soil classification emerged as an important topic within soil science. It forced soil scientists to think systematically about soils and its genesis and developed to facilitate communication between soil scientists. It has also been the cause for much debate and confusion but two internationally accepted sys...

Investigation of the effect of using nanomaterials for improving and Stabilizing the gypseous soil was carried out using laboratory works. The gypseous soils were collected from a site of intake in Bahar Al-Najaf and mixed with two types of nanomaterials (Nano-silica and, Nano-clay) where the nanomaterials were added in small amounts as a percent of the dry weight of the soil sample. Tests to d...