196,359 research outputs found
Sustainable agriculture and soil conservation
No full textSoil degradation is one of the most topical environmental threats. A number of processes causing soil degradation, specifically erosion, compaction, salinization, pollution, and loss of both organic matter and soil biodiversity, are also strictly connected to agricultural activity and its intensification. The development and adoption of sustainable agronomic practices able to preserve and enhance the physical, chemical, and biological properties of soils and improve agroecosystem functions is a challenge for both scientists and farmers. This Special Issue collects 12 original contributions addressing the state of the art of sustainable agriculture and soil conservation. The papers cover a wide range of topics, including organic agriculture, soil amendment and soil organic carbon (SOC) management, the impact of SOC on soil water repellency, the effects of soil tillage on the quantity of SOC associated with several fractions of soil particles and depth, and SOC prediction, using visible and near-infrared spectra and multivariate modeling. Moreover, the effects of some soil contaminants (e.g., crude oil, tungsten, copper, and polycyclic aromatic hydrocarbons) are discussed or reviewed in light of the recent literature. The collection of the manuscripts presented in this Special Issue provides a relevant knowledge contribution for improving our understanding on sustainable agriculture and soil conservation, thus stimulating new views on this main topic
Hochzeitliches Ehren-Gedicht/ Als Dem ... Hn. M. Petro Kistenmacher/ ... Diacono der Kirchen zu Torgau/ Die ... Fr. Magdalena/ Gebohrne Laubin/ Des ... Herrn M. Matthiae Berlichs/ Erbgesessen in Klein-Liebenaw/ hinterlassene Fr. Witbe/ Ehelich vertrauet ward
No full textHOCHZEITLICHES EHREN-GEDICHT/ ALS DEM ... HN. M. PETRO KISTENMACHER/ ... DIACONO DER KIRCHEN ZU TORGAU/ DIE ... FR. MAGDALENA/ GEBOHRNE LAUBIN/ DES ... HERRN M. MATTHIAE BERLICHS/ ERBGESESSEN IN KLEIN-LIEBENAW/ HINTERLASSENE FR. WITBE/ EHELICH VERTRAUET WARD
Hochzeitliches Ehren-Gedicht/ Als Dem ... Hn. M. Petro Kistenmacher/ ... Diacono der Kirchen zu Torgau/ Die ... Fr. Magdalena/ Gebohrne Laubin/ Des ... Herrn M. Matthiae Berlichs/ Erbgesessen in Klein-Liebenaw/ hinterlassene Fr. Witbe/ Ehelich vertrauet ward ([1])
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Assessment of soil quality under different soil management strategies: Combined use of statistical approaches to select the most informative soil physico-chemical indicators
No full textAssessment of soil quality under different management practices is crucial for sustainable agricultural production and natural resource use. In this study, different statistical methods (principal component analysis, PCA; stepwise discriminant analysis, SDA; partial least squares regression with VIP statistics, PLSR) were applied to identify the variables that most discriminated soil status under minimum tillage and no-tillage. Data collected in 2015 from a long-term field experiment on durum wheat (Triticum durum Desf.) were used and twenty soil indicators (chemical, physical and biological) were quantified for the upper soil layer (0–0.20 m). The long-term iteration of different management strategies affected soil quality, showing greater bulk density, relative field capacity (RFC), organic and extractable carbon contents (TOC and TEC) and exchangeable potassium under no-tillage. PCA and SDA confirmed these results and underlined also the role of available phosphorous and organic carbon fractions as variables that most discriminated the treatments investigated. PLSR, including information on plant response (grain yield and protein content), selected, as the most important variables, plant nutrients, soil physical quality indicators, pH and exchangeable cations. The research showed the effectiveness of combining variable selection methods to summarize information deriving from multivariate datasets and improving the understanding of the system investigated. The statistical approaches compared provided different results in terms of variables selected and the ranking of the selected variables. The combined use of the three methods allowed the selection of a smaller number of variables (TOC, TEC, Olsen P, water extractable nitrogen, RFC, macroporosity, air capacity), which were able to provide a clear discrimination between the treatments compared, as shown by the PCA carried out on the reduced dataset. The presence of a response variable in PLSR considerably drove the feature selection process
Honor Novissimus, Viro, Plurimum Reverendo, Vero Pietatis Zelo, Inoffenso Vere Inculpabilis Tenore, Ac Grandibus, In Ecclesiam Dei, Meritis Clarissimo Dn. M. Joachimo Babatio, Diacono Ecclesiae, Inter Nos, Cathedralis Optime Merito ... Exhibitus A Rectore Et Senatu Academiae Regiomontanae
No full textHONOR NOVISSIMUS, VIRO, PLURIMUM REVERENDO, VERO PIETATIS ZELO, INOFFENSO VERE INCULPABILIS TENORE, AC GRANDIBUS, IN ECCLESIAM DEI, MERITIS CLARISSIMO DN. M. JOACHIMO BABATIO, DIACONO ECCLESIAE, INTER NOS, CATHEDRALIS OPTIME MERITO ... EXHIBITUS A RECTORE ET SENATU ACADEMIAE REGIOMONTANAE
Honor Novissimus, Viro, Plurimum Reverendo, Vero Pietatis Zelo, Inoffenso Vere Inculpabilis Tenore, Ac Grandibus, In Ecclesiam Dei, Meritis Clarissimo Dn. M. Joachimo Babatio, Diacono Ecclesiae, Inter Nos, Cathedralis Optime Merito ... Exhibitus A Rectore Et Senatu Academiae Regiomontanae ([1])
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Stedina ta’ tfajjel
No full textĠabra ta’ poeżiji u proża li tinkludi: “Fruili” Mejju 1976 ta’ Jane Cortis – Lilek Ranċisa! ta’ Wallace Ph. Gulia – Papà ġdid ta’ Ġużè Diacono – Priżma ta’ Victor Apap – Leħen is-sewwa ta’ A. M. – Dik ix-xagħra! ta’ Emmanwel F. Attard – Bewsa ta’ Mario F. Bezzina – Stedina ta’ tfajjel ta’ Albert M. Cassola.peer-reviewe
101. Gigante (M.). Sul testo della Vita di Porfirio di Marco Diacono (Studi Medievali in onore di Antonio De Stefano. Palermo 1906, p. 227-229)
No full textGuilland Rodolphe. 101. Gigante (M.). Sul testo della Vita di Porfirio di Marco Diacono (Studi Medievali in onore di Antonio De Stefano. Palermo 1906, p. 227-229). In: Revue des Études Grecques, tome 70, fascicule 331-333, Juillet-décembre 1957. p. 564
101. Gigante (M.). Sul testo della Vita di Porfirio di Marco Diacono (Studi Medievali in onore di Antonio De Stefano. Palermo 1906, p. 227-229)
No full textGuilland Rodolphe. 101. Gigante (M.). Sul testo della Vita di Porfirio di Marco Diacono (Studi Medievali in onore di Antonio De Stefano. Palermo 1906, p. 227-229). In: Revue des Études Grecques, tome 70, fascicule 331-333, Juillet-décembre 1957. p. 564
Dr. Duane M. Jackson, Morehouse College, July 2011
No full textThis video is a conversation with Dr. Duane M. Jackson. Dr. Jackson talks about his paper, "Recall and the Serial Position Effect: The Role of Primacy and Recency on Accounting Students' Performance." Jackie Daniel, AUC Woodruff Library, is the interviewer
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