Effects of Bentonite Addition on Sandy Soil Chemistry in a Long-Term Plot Experiment (I); Effect on Organic Carbon and Total Nitrogen

被引：0

作者：

Czaban, Janusz ^{[1
]}

Siebielec, Grzegorz ^{[2
]}

Czyz, Ewa ^{[2
]}

Niedzwiecki, Jacek ^{[2
]}

机构：

[1] State Res Inst, Inst Soil Sci & Plant Cultivat, Agr Microbiol Dept, PL-24100 Pulawy, Poland

[2] State Res Inst, Inst Soil Sci & Plant Cultivat, Dept Soil Sci Eros & Land Protect, PL-24100 Pulawy, Poland

来源：

POLISH JOURNAL OF ENVIRONMENTAL STUDIES | 2013年 / 22卷 / 06期

关键词：

sandy soil; bentonite; organic C; total N; humins; MATTER; SEQUESTRATION;

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In 0.8 m(2) microplots, a very poor sandy soil that contained only traces of organic matter was enriched with bentonite (BNT) at rates of 0, 3, 6, and 12 kg/m(2). For 30 years the microplots were planted with different crops and regularly enriched with mineral and organic fertilizers. For the next eight years the microplots were left barren. The soils with BNT added contained significantly higher amounts of organic carbon (OC) and total nitrogen than the control soil (CS). Furthermore, in comparison to CS, organic matter in the soil with 12 kg/m(2) of BNT contained significantly more humins. Such durable stabilization of OC by BNT can be important for processes of carbon sequestration in soil.

引用

页码：1661 / 1667

页数：7

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