Author: Charles Siver HellingPublisher:
ISBN:
Category : Cations
Languages : en
Pages : 212
Book Description
PH Dependence of Cation Exchange Capacity of 65 Wisconsin Soils as Affected by Their Clay and Organic Matter Contents
Author: Charles Siver HellingPublisher:
ISBN:
Category : Cations
Languages : en
Pages : 212
Book Description
The Cation Exchange Capacity of Plant Lignins and Soil Humic Acids
Author: Raymond Earle WildungPublisher:
ISBN:
Category : Cations
Languages : en
Pages : 198
Book Description
Comparison of Methods for the Estimation of Soil Available Zinc
Author: David Charles MartensPublisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 190
Book Description
Contributions of Organic Matter and Clay to Soil Cation-exchange Capacity as Affected by the PH of Saturating Solution
Author: Charles S. HellingSelected Water Resources Abstracts
Author: Cation Exchange Capacity Relationships in the Buxton, Charlton, and Suffield Soil Series as Influenced by Organic Matter and Lime
Author: Wilson Vieira SoaresPublisher:
ISBN:
Category : Cations
Languages : en
Pages : 172
Book Description
In the Buxton and Suffield soils with organic matter present, KC1-CEC accounted for 35.5 and 73.3% of the total CEC at the zero and at the highest lime levels, respectively. The pH-dependent CEC decreased correspondingly and the total CEC was not affected significantly by rate of liming. Highly significant correlation coefficients were obtained-for the relationship of KC1-CEC to pH (r = 0.944) and for pH-dependent CEC to pH (r = 0,953). On the average, for each unit increase in pH, KC1-CEC increased 4.375 m.e. and pH-dependent CEC decreased 3.879 m.e./100 g. of soil, in the range from pH 5.16 to pH 6.98. After organic matter removal the effects of liming on other variables were less pronunced. The coefficients of correlation for KC1-CEC to decrease 27 and 76% at the zero and at the highest lime levels, respectively. The pH-dependent CEC decreased 40% in the unlimed soil and it did not vary significantly at the highest lime level. In the Charlton soil, with organic matter present, KC1-CEC accounted for 17 and 65% of the CEC, respectivvely, at the zero and at the highest lime levels. The pH-dependent CEC decreased correspondingly and total CEC increased by 4 m.e./100 g. of soil when 40,000 pounds of lime were applied to the soil. Correlation coefficients for the relationship of KC1-CEC to pH (r = 0.926) and for pH-dependent CEC to pH(r = -0.969) were highly significant. On the average, for each unit increase in pH, KC1-CEC increased 5.840 m.e. and pH-dependent CEC decreased 3.748 m.e./100 g.of soil in the ...
Biological & Agricultural Index
Author: Cation Exchange in Soils
Author: Walter Pearson KelleyPublisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 168
Book Description
History of cation exchange. The cation-exchange material. Cation-exchange equations. Principles of cation exchange. Exchange capacity and kind of exchangeable cation in various soil types. The determination of exchangeable cations. Cation exchange in relation to soil properties. Identification and estimation of the clay materials.
Proceedings - Soil Science Society of America
Author: Soil Science Society of AmericaPublisher:
ISBN:
Category : Soil science
Languages : en
Pages : 1094
Book Description
Comprehensive Dissertation Index
Author: Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 1244
Book Description