Soil Science Society of America Journal

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Long‐Term Fertilization Influences on Clay Mineral Composition and Ammonium Adsorption in a Rice Paddy Soil
Soil Science Society of America Journal - Tập 72 Số 6 - Trang 1580-1590 - 2008
Yanli Liu, Bin Zhang, Chengliang Li, Feng Hu, B. Velde
Increasing NH4+ adsorption can be an effective alternative in building an available N pool in soils to optimize crop recovery and minimize losses into the environment. We hypothesized that long‐term fertilization may change NH4+ adsorption due to changes in the chemical and mineralogical properties of a ric...... hiện toàn bộ
Effect of Environmental Factors on Ammonia Volatilization from a Urea-Fertilized Soil
Soil Science Society of America Journal - Tập 49 Số 2 - Trang 376-381 - 1985
R. J. B. Bouwmeester, P. L. G. Vlek, J. M. Stumpe
Rapid Measurement of Soil pH Buffering Capacity
Soil Science Society of America Journal - Tập 76 Số 2 - Trang 694-699 - 2012
D. E. Kissel, Leticia Sonon, M. L. Cabrera
Diagnosing Nutritional Status of Containerized Tree Seedlings: Comparative Plant Analyses
Soil Science Society of America Journal - Tập 51 Số 4 - Trang 1082-1086 - 1987
V. R. Timmer, G. Armstrong
AbstractContainerized red pine (Pinus resinosa Ait.) seedlings were fertilized to test the effectiveness of three approaches (critical levels, optimal ratios, and vector analysis) to diagnose seedling nutrient status. Treatments involved a balanced nutrient solution and six imbalanced solutions lacking (−) or enriched (+) with N, P, or K ...... hiện toàn bộ
Equations for Predicting Soil Organic Carbon Using Loss‐on‐Ignition for North Central U.S. Soils
Soil Science Society of America Journal - Tập 66 Số 6 - Trang 1878-1881 - 2002
Michael E. Konen, Peter Martin Jacobs, C. Lee Burras, Brandi J. Talaga, Joseph A. Mason
Samples of 255 noncalcareous A, Ap, and AB horizons from selected major land resource areas (MLRA) in the north central USA were used to develop equations for predicting organic C content, as determined with a Leco C analyzer, from weight loss‐on‐ignition (LOI). Organic C concentrations of the samples ranged from 1.09 to 114.6 g kg−1 Within each MLRA, strong linear rel...... hiện toàn bộ
Comparison of Water Content‐Pressure Head Data Obtained by Equilibrium, Steady‐State, and Unsteady‐State Methods
Soil Science Society of America Journal - Tập 31 Số 3 - Trang 312-314 - 1967
G. C. Topp, A. Klute, D. B. Peters
AbstractThe water content‐pressure head relationship for a small, well‐confined, rectangular sample of fine sand was obtained under different water flow conditions. Water contents were measured by a gamma system and pressure heads were measured by a tensiometer‐pressure transducer combination. During drying, more water was retained in the sand at a given pressure h...... hiện toàn bộ
Aggregation and Soil Organic Matter Accumulation in Cultivated and Native Grassland Soils
Soil Science Society of America Journal - Tập 62 Số 5 - Trang 1367-1377 - 1998
Johan Six, Edward T. Elliott, Keith Paustian, John W. Doran
AbstractTillage intensity affects soil structure and the loss of soil organic C and N. We hypothesized that no‐tillage (NT) and conventional tillage (CT) differentially affect three physically defined particulate organic matter (POM) fractions. A grassland‐derived Haplustoll was separated into aggregates by wet sieving. Free light fraction (LF) and intra‐aggregate ...... hiện toàn bộ
Alternative Methods for Measuring Inorganic, Organic, and Total Dissolved Nitrogen in Soil
Soil Science Society of America Journal - Tập 74 Số 3 - Trang 1018-1027 - 2010
Rebecca Hood‐Nowotny, Nina Hinko‐Najera, Erich Inselsbacher, Petra Lachouani, Wolfgang Wanek
There are numerous methods for measuring inorganic, dissolved organic, and microbial N in soils, although many of these are complex or require expensive equipment. We have modified methods for the measurement of NH4+, NO3−, total dissolved N (TDN), and soil microbial biomass N (SMBN) in soils. The methods a...... hiện toàn bộ
Relating Extractable Soil Phosphorus to Phosphorus Losses in Runoff
Soil Science Society of America Journal - Tập 60 Số 3 - Trang 855-859 - 1996
D. H. Pote, T. C. Daniel, P. A. Moore, D. J. Nichols, Andrew N. Sharpley, D. R. Edwards
Assessing the Reliability of Permanganate‐Oxidizable Carbon as an Index of Soil Labile Carbon
Soil Science Society of America Journal - Tập 68 Số 3 - Trang 969-978 - 2004
Agnes Tirol‐Padre, J. K. Ladha
Soil C oxidized by neutral KMnO4, or permanganate‐oxidizable C (POC), has been used as an index of labile C by several workers, although the nature of organic C (OC) oxidized has not been well elucidated. This study aimed to determine the reactivity of diverse organic compounds found in the soil with KMnO4 to judge the reliability of POC as an inde...... hiện toàn bộ
Tổng số: 403   
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