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Application of hog (Sus domesticus) manure to agricultural land converts waste to fertilizer. Nevertheless, matching nutrients in highly variable manure to soil or crop needs requires analytical capability that is ideally field portable and cost‐effective. This study explored using rapid nondestructive near‐infrared spectroscopy (NIRS) to analyze nutrients in hog manure and receiving soil. Spectral data in the visible and near‐infrared (NIR) region (400–2500 nm) from manure samples were correlated with chemical analytical data from the same samples using multiple linear regression statistics to develop calibrations for the prediction of future unknown samples. For 64 manure samples from seven manure storage facilities, r2 between NIR‐predicted values and chemically measured values was 0.93 to 0.99 for NH4–N, total dissolved N (TDN), suspended N, soluble reactive P (SRP), total dissolved P (TDP), suspended P, suspended C, Na, and Mg. For K, Ca, conductivity, and pH, r2 was >0.80. Subsequent analysis of 75 samples from 25 facilities gave similar or slightly less successful results. Soil samples collected before and following application of manure were scanned in a field‐moist state and after drying. For field‐moist soil, r2 for N, organic matter, Mg, and moisture was >0.84; for SO4–S was 0.7. For dry soil, results were similar for N and better for Mg SO4–S, Ca, and K. Near‐infrared spectroscopy has potential to predict some nutrient and salt concentrations in manure rapidly and without sample preparation. It can determine moisture, organic matter, total N, and Mg in field‐moist or dry soil and SO4–S, Ca, and possibly K in dry soil.

. Can. J. Soil Sci. 81: 439-447. As soil properties influence productivity, it is of interest to characterize their distribution for the purpose of intensified agricultural management in variable landscapes. Soil properties (soil organic C content, soil pH, A horizon thickness, solum thickness and depth to carbonates) were studied in 10 intensively sampled transects in a gently undulating glacial till landscape near Miniota, Manitoba. Using a landform description model, the study site was delineated into upper, mid and lower elevation landform element complexes (LEC) The program used a digital elevation model created from relative elevation data collected on a 10-m grid. Sample points were also stratified by soil series; Newdale (Orthic Black Chernozem), Varcoe (Gleyed Rego Black Chernozem) and Angusville (Gleyed Eluviated Black Chernozem) soils of the Newdale association were identified. Landform element complexes were ranked lower > mid > upper with respect to convergent landscape character. The eluviated Angusville profiles occurred under more convergent landscape character than the Newdale or Varcoe series. There was a consistent rank of lower > mid > upper with respect to depth to carbonates, A horizon thickness, solum thickness and soil organic C content. Relative ranking of the pH in the Ap horizon was the opposite. In all cases, the lower LEC emerged as most clearly distinct. There was substantial variability in soil profile development, and, therefore, soil series membership, within individual LEC. This indicated that the scale at which LEC are delineated is broader than that at which soil series variability occurs. Nonetheless, LEC were useful in capturing gross variability in soil properties within the landscape at a scale that would allow unique agricultural management practices.Key words: Soil-landscape, solum thickness, depth to carbonates, organic carbon, soil pH Manning, G., Fuller, L. G., Eilers, R. G. et Florinsky, I. 2001. Incidence du relief sur la variabilité des propriétés pédologiques d'un terrain ondulé au Manitoba. Can. J. Soil Sci. 81: 439-447. Puisque les propriétés du sol agissent sur la productivité, en établir la distribution concourrait à une gestion plus intensive des terres arables sur différents terrains. Les auteurs ont étudié les propriétés du sol (teneur en carbone organique, pH, épaisseur de l'horizon A, épaisseur du solum et profondeur des carbonates) échantillonné à de nombreux endroits le long de dix transects, sur un terrain ondulé de till glaciaire près de Miniota, au Manitoba. Le site examiné a été subdivisé en complexes d'éléments topographiques (CET) de haute, de moyenne et de faible altitude grâce à un modèle de description du relief. Le logiciel faisait appel à un système de modélisation numérique des hauteurs reposant sur les relevés altimétriques obtenus de 10 m en 10 m. Les points d'échantillonnage ont également été stratifiés d'après la série de sols. Ainsi, les auteurs ont identifié les sols Newdale (tchernoziom noir orthique), Varcoe (tchernoziom noir régosol...