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Potassium fixation in soil size fractions of arid soils
calcareous soils Iran smectite soil fractionation
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2015/3/9
Amounts of potassium (K) fixed in soil fractions of 10 calcareous soils of southern Iran were measured to evaluate the contributions of different soil size fractions to K fixation. Soil particles were...
Quantitative and qualitative changes of humus in whole soils and their particle size fractions as influenced by different levels of compost application
Paddy and Upland Fields Straw-Cow Dung Compost
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2013/3/4
Effect of long-term application (ca. 30 years) of compost at different levels on humus composi-tion of whole soils and their particle size frac-tions in a field subjected mainly to double cropping (ba...
Effects of different levels of compost application on amounts and distribution of organic nitrogen forms in soil particle size fractions subjected mainly to double cropping
Compost Application Upland and Paddy Fields Soil Organic N Forms Size Fractions
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2013/3/4
Effects of different levels of compost application on the amounts and percentage distribution of organic N forms in whole soils and particle size fractions were investigated. Soil samples were collect...