Amounts, dynamics and sequestering of carbon in tropical and subtropical soils: A memory

<p>Nitrapyrin (2-chloro-6-(trichloromethyl)pyridine) is a specific nitrifiation inhibitor, applied in soils for reducing the nitrification process of nitrogenous fertilizers. The overall effect of nitrapyrin is enhancing the efficiency of nitrogenous fertilizers in soils and also controlling environmental pollution in water by preventing nitrate leaching in soils. Dissipation of nitrapyrin was evaluated in subtropical soils at two fortification levels of 2 and 4 µg∙g-1. The extraction of nitrapyrin was done by quick, easy, cheap, rugged and safe (QuEChERS) method and quantitative analysis – by high-performance liquid chromatography (HPLC). Nitrapyrin residues declined consistently with time in both types of soils and were not detectable (</p>

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Butachlor, Thiobencarb, and Chlomethoxyfen Movement in Subtropical Soils

Bulletin of Environmental Contamination and Toxicology ◽

10.1007/s0012800197 ◽

2001 ◽

Vol 66 (1) ◽

pp. 1-8 ◽

Cited By ~ 6

Author(s):

H.-C. Chiang ◽

J.-R. Duh ◽

Y.-S. Wang

Keyword(s):

Subtropical Soils

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Role of Microorganisms in Regulating Carbon Cycle in Tropical and Subtropical Soils

Carbon Management in Tropical and Sub-Tropical Terrestrial Systems ◽

10.1007/978-981-13-9628-1_15 ◽

2019 ◽

pp. 249-263

Author(s):

Arjun Singh ◽

Murugan Kumar ◽

Anil Kumar Saxena

Keyword(s):

Carbon Cycle ◽

Subtropical Soils

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Contributions of Asian dust to subtropical soils of Southeast China based on Nd isotope

Journal of Soils and Sediments ◽

10.1007/s11368-021-03053-3 ◽

2021 ◽

Author(s):

Jianwu Li ◽

Yucheng Ren ◽

Fangfang Zhang ◽

Yongfu Li ◽

Yunying Fang ◽

...

Keyword(s):

Asian Dust ◽

Nd Isotope ◽

Southeast China ◽

Subtropical Soils

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Aluminium influence on iron oxides: XVIII. The effect of Al substitution and crystal size on magnetic hyperfine fields of natural goethites

Clay Minerals ◽

10.1180/claymin.1996.031.4.02 ◽

1996 ◽

Vol 31 (4) ◽

pp. 455-464 ◽

Cited By ~ 21

Author(s):

J. Friedl ◽

U. Schwertmann

Keyword(s):

Iron Oxides ◽

Room Temperature ◽

Crystal Size ◽

Tropical Soil ◽

Iron Ores ◽

Hyperfine Fields ◽

Al Substitution ◽

Subtropical Soils ◽

Crystallization Conditions ◽

The Mean

AbstractTwo sets of natural Al-substituted goethites from contrasting surface environments (24 tropical and subtropical soils vs. ten lake iron ores from Finland) were characterized by Mössbauer spectra obtained at room temperature and 4.2 K. A negative correlation between Bhf and Al substitution (R2 = 0.751) was found by combining the data of all the samples, which was slightly improved (R2 = 0.779) by taking the mean coherence length perpendicular to 111 (MCL111) into account. The effect of Al on lowering Bhf was, however, stronger for the tropical soil goethites than for those of the lake ores. This is parallelled by a corresponding difference in the unit-cell decrease per unit Al substitution. These differences are believed to result from the crystallization conditions in the two different environments.

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