Results 131 to 140 of about 387 (172)
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Pre-incubation Soil Handling Can Influence Comparability of Potentially Mineralizable Nitrogen Results

Communications in Soil Science and Plant Analysis, 2021
Potentially mineralizable nitrogen (PMN) is a widely used indicator of a soil’s organic nitrogen (N) availability, and is often measured by incubation.
Sarah M Collier, Matthew D Ruark
exaly   +2 more sources

Determination of potentially mineralizable nitrogen in agricultural soil

Biology and Fertility of Soils, 1996
Potentially mineralizable soil N was determined after incubation for 2, 4, 8, 12, 16, 22, and 30 weeks, according to the Stanford and Smith method. A first-order kinetics model was used, and a simulation study was performed using three different statistical methods to estimate potentially mineralizable N and the rate constant k.
A. Benedetti, G. Sebastiani
exaly   +2 more sources

Evaluation of Several Indices of Potentially Mineralizable Soil Nitrogen

Communications in Soil Science and Plant Analysis, 2007
Abstract A routine soil test that accurately predicts soil nitrogen (N) mineralization has long eluded researchers. Soil incubations, which are not practical for routine soil testing, are the only methods that have proven successful. Although several quick analytical methods have been proposed, no one method has correlated consistently enough to be ...
Nathan A Slaton, C E Wilson, E E Gbur
exaly   +2 more sources

Seasonal Variation of Potentially Mineralizable Nitrogen in Four Cropping Systems

Soil Science Society of America Journal, 1987
Abstract The concept of potentially mineralizable N is discussed and data that support the identification of N 0 as an active fraction of soil organic N are presented.
Thomas Rosswall
exaly   +2 more sources

Response of Potentially Mineralizable Soil Nitrogen and Indices of Nitrogen Availability to Tillage System

Soil Science Society of America Journal, 2008
Tillage practices may affect the active fraction of soil organic N. As part of a national project to examine soil management and environmental controls on the active fraction of organic N, this study examined the effects of no‐till (NT) and conventional tillage (CT) systems on the quantity of potentially mineralizable soil N (N
Mehdi Sharifi   +2 more
exaly   +2 more sources

Conservation Agriculture Practices Increase Potentially Mineralizable Nitrogen: A Meta‐Analysis

Soil Science Society of America Journal, 2018
Core Ideas Conservation agriculture practices benefit potentially mineralizable nitrogen Optimum N fertilizer inputs benefit potentially ...
Navreet K Mahal   +2 more
exaly   +3 more sources

Microbial biomass as a fraction of potentially mineralizable nitrogen in soils from long-term field experiments

Soil Biology and Biochemistry, 1988
Abstract Aerobic long-term incubations (40-wk) were employed to measure the potentially mineralizable nitrogen (N 0 ) in five 30-yr old cropping systems. The cropping systems consisted of: (1) bare fallow; (2) cropping with no additions; (3) cropping with 80 kg N ha −1 y −1 as Ca(NO 3 ) 2 ; (4) cropping with 80 kg N ha −1 yr −1 as Ca(NO 3 ) 2 ...
J Schnürer   +2 more
exaly   +2 more sources

SOIL POTENTIALLY MINERALIZABLE NITROGEN AND ITS RELATION TO RICE PRODUCTION AND NITROGEN NEEDS IN TWO PADDY RICE SOILS OF CHILE

Journal of Plant Nutrition, 2012
Rice is an important food in the world population's diet. As nitrogen (N) is the principal nutrient associated with the yield and its mineralization from the soil contribute to plant-available N, the use of biological or chemical methods are necessary for its estimation. Two paddy rice soils types of Chile were used for laboratory (anaerobic incubation)
CARLOS Fernández
exaly   +2 more sources

Evaluation of laboratory-based measures of soil mineral nitrogen and potentially mineralizable nitrogen as predictors of field-based indices of soil nitrogen supply in potato production

Plant and Soil, 2007
Accurate estimation of soil nitrogen (N) supply in the field is required to optimize fertilizer N management and to minimize environmental N losses in humid environments. Laboratory-based measures of N availability were evaluated as predictors of field-based indices of soil N supply within potato production systems.
Mehdi Sharifi   +2 more
exaly   +2 more sources

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