نتایج جستجو برای: soil s

تعداد نتایج: 882813  

Journal: :Plant physiology 1965
R F Troxler R H Hamilton

4. BROW-N, J. C., R. S. HOLMES, AND L. 0. TIFFIN. 1958. Iron chlorosis in soybeans as related to the genotype of rootstock. Soil Sci. 86: 75-82. 5. DEKOCK, P. C. AND R. J. MORRISON. 1958. The metabolism of chlorotic leaves. 2. Organ.c acids. Biochem. J. 70: 272-77. 6. DICKMAN, S. R. AND A. A. CLOUTIER. 1951. Factors affecting the activity of aconitase. J. Biol. Chem. 188: 379-88. 7. ILJIN, WV. ...

2010
RAJ AT BINDLISH ANA P. BARROS

A b s t r a c t Previously, the IEM (Integral Equation Model) was successfully used in conjunction with an inversion model to retrieve soil moisture using multi-frequency and multi-polarization data from Spaceborne Imaging Radar C-band (SIR-C) and X-band Synthetic Aperture Radar (X-SAR), without the need to prescribe time-varying land surface attributes as constraining parameters. The retrieved...

Journal: :International journal of phytoremediation 2012
Longhua Wu Zhu Li Cunliang Han Ling Liu Ying Teng Xianghui Sun Cheng Pan Yujuan Huang Yongming Luo Peter Christie

A pot experiment and afield trial were conducted to study the remediation of an aged field soil contaminated with cadmium, copper and polychlorinated biphenyls (PCBs) (7.67 +/- 0.51 mg kg(-1) Cd, 369 +/- 1 mg kg(-1) Cu in pot experiment; 8.46 +/- 0.31 mg kg(-1) Cd, 468 +/- 7 mg kg(-1) Cu, 323 +/- 12 microg kg(-1) PCBs for field experiment) under different cropping patterns. In the pot experimen...

2011
Farhat Abbas Ali Fares Samira Fares

Spatially variable soil properties influence the performance of soil water content monitoring sensors. The objectives of this research were to: (i) study the spatial variability of bulk density (ρ(b)), total porosity (θ(t)), clay content (CC), electrical conductivity (EC), and pH in the upper Mākaha Valley watershed soils; (ii) explore the effect of variations in ρ(b) and θ(t) on soil water con...

Journal: :Applied and environmental microbiology 2007
Saliou Fall Jérôme Hamelin Farma Ndiaye Komi Assigbetse Michel Aragno Jean Luc Chotte Alain Brauman

In tropical ecosystems, termite mound soils constitute an important soil compartment covering around 10% of African soils. Previous studies have shown (S. Fall, S. Nazaret, J. L. Chotte, and A. Brauman, Microb. Ecol. 28:191-199, 2004) that the bacterial genetic structure of the mounds of soil-feeding termites (Cubitermes niokoloensis) is different from that of their surrounding soil. The aim of...

Journal: :Journal of environmental management 2015
Angela Joy Eykelbosh Mark S Johnson Eduardo Guimarães Couto

OBJECTIVES Sugarcane cultivation is associated with catchment-wide impacts related to application of vinasse, a nutrient-dense effluent with high eutrophication potential. We evaluated the potential for biochar (charcoal produced from pyrolyzed filtercake) to mitigate carbon and nutrient leaching in a cultivated Brazilian Ferralsol after vinasse application. METHODS Twelve soil columns (soil ...

2013
Zhiyong Zhou Chao Guo He Meng

The basal respiration rate at 10°C (R10) and the temperature sensitivity of soil respiration (Q10) are two premier parameters in predicting the instantaneous rate of soil respiration at a given temperature. However, the mechanisms underlying the spatial variations in R10 and Q10 are not quite clear. R10 and Q10 were calculated using an exponential function with measured soil respiration and soi...

Journal: :Journal of environmental monitoring : JEM 2004
Bart Vandecasteele Paul Quataert Bruno De Vos Filip M G Tack Bart Muys

Many alluvial soils along navigable waterways are affected by disposal of dredged sediments or overbank sedimentation and contain metal concentrations that are elevated compared to baseline levels. Uptake patterns for metals and other elements by several volunteer Salix species growing on these sites were determined during a growing season in field plots and compared with the same species growi...

2015
Sandra López-Rayo Paloma Nadal Juan J. Lucena

This study compares the effectiveness of multi-micronutrient formulations containing iron (Fe), manganese (Mn), and zinc (Zn) with traditional (EDTA, DTPA, HEEDTA, and EDDHAm) or novel chelates (o,p-EDDHA, S,S-EDDS, and IDHA) and natural complexing agents (gluconate and lignosulfonate). The stability and reactivity of the formulations were studied on batch experiments with calcareous soil and b...

Journal: :Journal of nematology 2004
A P Nyczepir D I Shapiro-Ilan E E Lewis Z A Handoo

The effect of Steinernema riobrave and Heterorhabditis bacteriophora on population density of Mesocriconema xenoplax in peach was studied in the greenhouse. Twenty-one days after adding 112 M. xenoplax adults and juveniles/1,500 cm(3) soil to the soil surface of each pot, 50 infective juveniles/cm(2) soil surface of either S. riobrave or H. bacteriophora were applied. Another entomopathogenic n...

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