Mercury, cadmium and arsenic are common constituents of pesticides and all these heavy metals are toxic. At present DDT and a number of organochlorine compounds used as pesticides have been declared harmful and banned in U.S.A. and England [13-14]. It is due to the persistence of their re...
Table 1: Essential plant nutrient elements and their primary form utilized by plants. Agriculture alters the natural cycling of nutrients in soil. Intensive cultivation and harvesting of crops for human or animal consumption can effectively mine the soil of plant nutrients. In order to maintain soil...
stimulate high N2O production (i.e., to create an episodic N2O hot spot). Drainage is greater in sandier soils such that the greater leaching of dissolved soil constituents can lead lower soil NO3−concentrations50,51. At the same time, DOC can adsorb to clay minerals, resulting in greate...
S4. The DOM elution curves showed similar trends for all soils, exhibiting a total of 2 to 5 peaks, and the MWdistribution of their components ranged from 1 kDa to 35 kDa. In particular, three MWfractions, i.e., large (MW> 25 kDa), medium (MW25 kDa‒15 kDa), and small (...
I should like my nephews to know what air is, and water; why we breathe, and why wood burns; the nutritive elements essential to plant life, and the constituents of the soil. And it is no vague and imperfect knowledge from hearsay I would have them gain of these fundamental truths, ...
of SO42−CSin the dissolution or mineralization of HS-bound minerals would affect the export of SO42−LSby leaching into the ambient surface waters and groundwater, whereas SOS + Sn2−would remain in the soil matrix in either mineral forms or as structural constituents of ...
The main weathering processes are physical, and there is incomplete leaching of soluble constituents from the profile. The soil is dry much of the time, and it supports only sparse vegetation with incomplete surface cover. The soils of arid regions are generally pale in color and contain little...
Differences in the constituents of bacterial microbiota of soils collected from two fields of diverse potato blackleg and soft rot diseases incidences, a case study –Weronika Babinska-Wensierska et al – Nature Scientific Reports Variations of soil metal content, soil enzyme activity and soil bact...
Unravelling biosphere feedback mechanisms is crucial for predicting the impacts of global warming. Soil priming, an effect of fresh plant-derived carbon (C) on native soil organic carbon (SOC) decomposition, is a key feedback mechanism that could release
However, for either straw-derived DOC that is rich in aromatic constituents, or SOC that is rich in carboxyl functional groups, less in aromatic and phenolic compounds, the co-precipitation could result in much higher SOC retention (Chen et al. 2014; Sodano et al. 2017). 2.3 The formation...