Results 151 to 160 of about 387 (172)
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Achieving Desired Moisture Conditions in Potentially Mineralizable Nitrogen Incubation Studies
Soil Science Society of America Journal, 1986Abstract A technique was developed to determine soil‐to‐sand mixing ratios to achieve desired soil moisture conditions during incubation in potentially mineralizable N studies. Five soils were selected to represent a range of soil textures. Segmented plastic leaching tubes were used to determine gravimetric water content, bulk density,
M. A. Lueking, J. S. Schepers
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Communications in Soil Science and Plant Analysis, 2007
Abstract Mineralization of soil organic nitrogen (N) and its contribution toward crop N uptake is central to developing efficient N‐management practices. Because biological incubation methods are time consuming and do not fit into the batch‐analysis techniques of soil‐testing laboratories, an analytical procedure that can provide an estimate of the ...
D. K. Benbi, H. S. Haer
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Abstract Mineralization of soil organic nitrogen (N) and its contribution toward crop N uptake is central to developing efficient N‐management practices. Because biological incubation methods are time consuming and do not fit into the batch‐analysis techniques of soil‐testing laboratories, an analytical procedure that can provide an estimate of the ...
D. K. Benbi, H. S. Haer
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Journal of Soil Science and Plant Nutrition, 2021
Maintaining adequate nitrogen (N) supply to dryland cereal crops remains a critical management issue for optimizing productivity and N-use efficiency. Combinations of crop residue and fertilizer-N inputs can be used to manipulate soil-N supply factors at critical stages of plant N demand.
Muschietti Piana, Maria del Pilar +4 more
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Maintaining adequate nitrogen (N) supply to dryland cereal crops remains a critical management issue for optimizing productivity and N-use efficiency. Combinations of crop residue and fertilizer-N inputs can be used to manipulate soil-N supply factors at critical stages of plant N demand.
Muschietti Piana, Maria del Pilar +4 more
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Soil Science Society of America Journal, 2017
Core Ideas Gross N mineralization and PMN are related to different SOM properties. Multiple linear regressions generated predictions of N
William R. Osterholz +7 more
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Core Ideas Gross N mineralization and PMN are related to different SOM properties. Multiple linear regressions generated predictions of N
William R. Osterholz +7 more
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Australian Journal of Soil Research, 1981
The procedure of Stanford and coworkers was used to quantitatively relate net nitrogen mineralization in five Queensland semi-arid soils to temperature. The concentration of potentially mineralizable nitrogen (No) (1) ranged from 67 µg nitrogen g-1 for a red earth subsoil to 256 for a recently cultivated cracking clay surface soil, (2) was directly ...
CA Campbell, RJK Myers, KL Weier
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The procedure of Stanford and coworkers was used to quantitatively relate net nitrogen mineralization in five Queensland semi-arid soils to temperature. The concentration of potentially mineralizable nitrogen (No) (1) ranged from 67 µg nitrogen g-1 for a red earth subsoil to 256 for a recently cultivated cracking clay surface soil, (2) was directly ...
CA Campbell, RJK Myers, KL Weier
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Journal of Environmental Science and Health . Part A: Environmental Science and Engineering and Toxicology, 1993
Abstract There is an urgent need for a rapid and reliable laboratory procedure capable of predicting soil N availability during land treatment of organic wastes or other sources of nitrogen. Soil systems which have been treated with organic wastes will likely to exhibit a relatively high potential to mineralize organic N into soluble forms under ...
R. Saint‐Fort +2 more
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Abstract There is an urgent need for a rapid and reliable laboratory procedure capable of predicting soil N availability during land treatment of organic wastes or other sources of nitrogen. Soil systems which have been treated with organic wastes will likely to exhibit a relatively high potential to mineralize organic N into soluble forms under ...
R. Saint‐Fort +2 more
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Canadian Journal of Soil Science, 1982
Although it is known that considerable loss in total organic matter has occurred due to cultivation of prairie soils, there is little information on changes in the fertility-related fraction of the organic matter. Twelve prairie surface soils representing paired virgin and cultivated coarse-, medium-, and fine-textured soils from the Brown, Dark Brown,
C. A. CAMPBELL, W. SOUSTER
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Although it is known that considerable loss in total organic matter has occurred due to cultivation of prairie soils, there is little information on changes in the fertility-related fraction of the organic matter. Twelve prairie surface soils representing paired virgin and cultivated coarse-, medium-, and fine-textured soils from the Brown, Dark Brown,
C. A. CAMPBELL, W. SOUSTER
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The Journal of Agricultural Science, 2004
Visible (VIS) and near-infrared reflectance spectroscopy (NIRS) combined with multivariate data analysis was used to predict potentially mineralizable nitrogen (PMN) and nitrogen in particulate organic matter fractions (PSOM-N). Soil samples from a long-term experiment (n=24) as well as soils under commercial management (n=160) in Uruguay (South ...
Moron, A., Cozzolino, D.
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Visible (VIS) and near-infrared reflectance spectroscopy (NIRS) combined with multivariate data analysis was used to predict potentially mineralizable nitrogen (PMN) and nitrogen in particulate organic matter fractions (PSOM-N). Soil samples from a long-term experiment (n=24) as well as soils under commercial management (n=160) in Uruguay (South ...
Moron, A., Cozzolino, D.
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Journal of Environmental Science and Health . Part A: Environmental Science and Engineering and Toxicology, 1991
Abstract A recent water quality assessment by the Nebraska Department of Health, Water Quality (1987) reported that many municipal wells in the area of Sidney, Nebraska have nitrate (NO3 ‐) concentrations above the maximum safe water drinking standard.
R. Saint‐Fort +2 more
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Abstract A recent water quality assessment by the Nebraska Department of Health, Water Quality (1987) reported that many municipal wells in the area of Sidney, Nebraska have nitrate (NO3 ‐) concentrations above the maximum safe water drinking standard.
R. Saint‐Fort +2 more
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Applied Geochemistry, 2009
Abstract Potentially mineralizable N (PMN) in sediments is an important N source to aquatic ecosystems. However, there are few studies on PMN in lake sediments. The main N fraction in lake sediments is organic, and mineralization is through benthic metabolism in sediments rather than in the water column in most shallow lake systems.
Shengrui Wang +3 more
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Abstract Potentially mineralizable N (PMN) in sediments is an important N source to aquatic ecosystems. However, there are few studies on PMN in lake sediments. The main N fraction in lake sediments is organic, and mineralization is through benthic metabolism in sediments rather than in the water column in most shallow lake systems.
Shengrui Wang +3 more
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