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| Registros recuperados: 882 | |
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| Dhamala, N.R.; Søegaard, K.; Eriksen, J.. |
| European agriculture focuses on increasing biodiversity. However, in highly productive temporary grasslands in grass / arable systems, the biodiversity is usually low. Three non-leguminous species have shown high competitive strength in temporary grasslands and ample possibility to increase biodiversity without compromising yields. In this experiment, we examined in detail the competitiveness and productivity of the three forb species: chicory (Cichorium intybus), ribwort plantain (Plantago lanceolata) and caraway (Carum carvi) grown in different proportions in mixtures including traditional grassland species: perennial ryegrass (Lolium perenne) and red clover (Trifolium pratense), with fertiliser application as an additional factor. Dry matter (DM) yield... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop combinations and interactions; Nutrient turnover. |
| Ano: 2015 |
URL: http://orgprints.org/34987/1/Grassland%20and%20forages%20in%20high%20output%20dairy%20farming%20systems.pdf |
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| Haas, Guido. |
| Untersucht wurde die Stickstoffzufuhr mit dem Anbau von Leguminosen als Winterzwischenfrüchte (Zottelwicken, Inkarnatklee, Landsberger Gemenge, Wickroggen). Referenzvarianten waren Rübsen, Roggen und Gras in Reinsaat sowie Brache. In Feldversuchen an drei organisch bewirtschafteten Standorten im Rheinland wurden in den Jahren 2002 und 2003 die Zwischenfrüchte und Nachfruchtwirkung geprüft. Bestimmt wurden Ertrag (21 - 62 dt TM/ha), Stickstoffaufnahme (65 - 200 kg N/ha) und Netto-N-Fixierung (im Mittel 100 kg N/ha). Die Zwischenfrüchte wurden im Mai/Juni gemulcht oder beerntet. In den ersten Wochen nach Umbruch der Zwischenfrucht und Saat der Nachfrucht wurde der Verlauf der N-Mineralisierung im Boden gemessen (max. 50 - 180 kg Nmin-N/ha im Ap). Der... |
| Tipo: Book |
Palavras-chave: Nutrient turnover; Crop combinations and interactions. |
| Ano: 2004 |
URL: http://orgprints.org/13944/1/Report_Wicke04.pdf |
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| Friedel, Jürgen K.; Scheller, Edwin. |
| We hydrolysed (6 M HC1) soll organic matter (SOM) from mineral top-soil horizons, litter, and the fraction rendered extractable by 0.5 M K2SO4 after Chloroform fumigation from eight soils under arable, grassland and forest use. covering a wide ränge of site conditions. Our aims were to quantify amino acid contents in the hydrolysate derived from whole soil. litter and soil microbial biomass, respectively. We also wanted to test if the pattern of hydrolysable amino acids of the whole soil is uniform irrespective of site conditions and land use. and if there i s a relation with the amino acid pattern of the respective soil microbial Community. The content of hydrolysable amino acids in the whole soil was higher in the soil samples from grassland and forest... |
| Tipo: Journal paper |
Palavras-chave: Nutrient turnover; Soil biology. |
| Ano: 2002 |
URL: http://orgprints.org/1372/1/kein%2DDokument.pdf |
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| Wahid, R; Feng, L; Cong, WF; Ward, A; Møller, HB; Eriksen, J. |
| In the present study, biogas potentials of multispecies swards including grass, lucerne, caraway, ribwort plantain and chicory from two- and four-cut regimes (Mix-2 and Mix-4) for mono-digestion applying batch and continuous modes under lab-scale conditions were investigated. The gas yields in terms of volatile solids (VS)loaded from Mix-2 and Mix-4 were compared with pure stand lucerne from the four cuts regime (Lu-4). The batch test results indicate that methane yield on a VS basis was highest from Mix-4 (295 L kg−1), followed by Mix-2 (281 L kg−1) and Lu-4 (255 L kg−1). The results were confirmed with continuous experiments, during which the reactor digesting Mix-4 was stable throughout the experiment with low ammonia and volatile fatty acid... |
| Tipo: Journal paper |
Palavras-chave: Crop combinations and interactions; Nutrient turnover. |
| Ano: 2018 |
URL: http://orgprints.org/32974/1/Wahid%20et%20al%202018.pdf |
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| Eriksen, J.; Vinther, F.P.. |
| In a field experiment at Research Centre Foulum a suction cup technique was used to investigate nitrate leaching from grassland depending on composition (grass-clover or perennial ryegrass), management (grazing or cutting) and age of the swards. In 1997-2001 was investigated the successive nitrate leaching from 4-7 year old grazed grass-clover and ryegrass with cut plots of similar age and spring barley as reference. In 2000-2001 the simultaneous nitrate leaching from newly established swards, swards grazed for 1 and 7 years and swards cut for 7 years was investigated. In the newly established swards nitrate leaching from grass-clover and ryegrass were similar but at increasing sward age nitrate leaching from the fertilized ryegrass increased dramatically... |
| Tipo: Book chapter |
Palavras-chave: Nutrient turnover. |
| Ano: 2002 |
URL: http://orgprints.org/160/1/cfp404.pdf |
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| Cabilovski, dipl ing Ranko; Manojlovic, Prof Maja; Bogdanovic, Prof Darinka; Bavec, Prof Martina. |
| In a field experiment on a farm registered for organic production, we studied the effect of the application of different organic materials (OM): farmyard manure (FYM), guano (G), soybean seed (S), forage pea seed (P) on lettuce yield. Besides yield, we also analyzed the economic profitability of the application of different OM. Fresh lettuce yield was significantly higher with OM treatments than with the treatments without fertilization. The highest yield was obtained with the FYM treatment (43.7 t ha-1), and the lowest with the application of P (42.0 t ha-1). The highest additional profit was obtained with the FYM treatment (1123 EUR ha-1) and the lowest with the application of P (475 EUR ha-1). |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Nutrient turnover; Farm economics. |
| Ano: 2008 |
URL: http://orgprints.org/12085/1/Cabilovski_12085_ed.doc |
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| Eriksen, J.. |
| On a global scale, S excretion from domestic animals may be estimated to around 8 million t per year, corresponding to 80% of the World S consumption for mineral fertiliser manufacture. The utilisation of this potential source of fertiliser-S is discussed focusing on the use of manure from housing and manure storages applied to agricultural land. Especially in the developed countries the S content of manure collected from cattle and pigs (1 million t S per year) has a potential as S-fertiliser, as legal demands on the utilisation of manure N and/or P already require the use of animal wastes as fertilisers. Content and composition of manure-S from both monogastrics and ruminants may be extremely variable, depending on the S content of the feed. If the diet... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Nutrient turnover. |
| Ano: 2001 |
URL: http://orgprints.org/3176/1/Proc_505_Eriksen_proof.pdf |
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| Kolbe, Hartmut; Zimmer, Jörg. |
| In dem vorliegenden Leitfaden werden in allgemeinverständlicher Form zunächst die bodenkundlichen und pflanzenbaulichen Grundlagen zur Humuswirtschaft mit dem neuesten Stand vorgestellt. Anschließend werden geeignete Methoden zur Bodenuntersuchung und Humusbilanzierung beschrieben. An Hand von Beispielen werden Anleitungen zur Durchführung von Bilanzierungen und zur Interpretation der Ergebnisse gegeben. Im Mittelpunkt des Leitfadens stehen Handlungsgrundlagen zur Sicherung der Bodenfruchtbarkeit durch Aufrechterhaltung einer optimalen Versorgung mit organischer Substanz für den konventionellen und ökologischen Ackerbau. Die Broschüre ist ein wichtiger Ratgeber für Verwaltung, landwirtschaftliche Praxis, Beratung und Schulung. |
| Tipo: Book |
Palavras-chave: Soil quality; Crop combinations and interactions; Composting and manuring; Nutrient turnover; Technology transfer. |
| Ano: 2015 |
URL: http://orgprints.org/29534/1/Humusreproduktion-web.pdf |
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| Janmaat, Leen. |
| Gewasresten van het landbouwbedrijf en maaisel uit beheersgebieden vormen reststromen die geschikt zijn als organische meststof. Deze reststromen kunnen als input voor composteren worden gebruikt. Bij composteren verdwijnt een deel van de organisch gebonden koolstof naar de lucht. Een alternatief is het fermenteren en conserveren van maaisel en andere inputs is het zogenaamde Bokashi-methode. Bokashi betekent “goed gefermenteerd organisch materiaal”. Met behulp van micro-organismen, zeeschelpenkalk en kleimineralen wordt het fermentatieproces in werking gezet.Het fermenteren vindt plaats onder zuurstofloze omstandigheden. In Noord-Holland zijn experimenten gedaan met het bereiden van Bokashi en die zijn vergeleken met compost. De waarde van Bokashi kan... |
| Tipo: Report |
Palavras-chave: Soil quality; Nutrient turnover; Environmental aspects; Farm nutrient management. |
| Ano: 2015 |
URL: http://orgprints.org/36520/1/3102.pdf |
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| Das hier beschriebene Verbundvorhaben umfasst folgende Teilprojekte: FKZ 18OE013, FKZ 18OE057, FKZ 18OE058, FKZ 18OE059, FKZ 18OE060, FKZ 18OE061, FKZ 18OE062, FKZ 18OE063 und FKZ 18OE064. Alle in Organic Eprints archivierten Projektbeschreibungen und Veröffentlichungen zu diesem Verbundvorhaben finden Sie unter folgendem Link: http://orgprints.org/id/saved_search/1729. Ziel des Vorhabens ist die Verbesserung des Nährstoffmanagements im ökologischen Gemüseanbau im Sinne einer Erhöhung der N-Effizienz, ausgewogenen K-Bilanzen und einer Verringerung der P- und S-Überbilanzen, im Freiland wie im geschützten Anbau. Unser Vorhaben basiert auf einer Zusammenstellung des aktuellen Wissenstands, der durch exemplarische Erhebungen von Nährstoffimporten (v.a.... |
| Tipo: Project description |
Palavras-chave: Nutrient turnover; Air and water emissions. |
| Ano: 2023 |
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| BEŞİRLİ, Gülay; SÖNMEZ, İbrahim; Keçeci, Mehmet; Güçdemir, İbrahim. |
| Bu çalışma, yeşil gübrelemenin toprağın fiziksel ve kimyasal yapısı üzerine etkilerini belirlemek amacı ile Yalova koşullarında yürütülmüştür. Deneme, yeşil gübreli ve yeşil gübresiz olmak üzere iki ana parselde tesadüf blokları deneme deseninde çakılı deneme düzenine göre planlanmıştır. Araştırmada yeşil gübre bitkisi olarak adi fiğ kullanılmıştır. Bitki besin maddesi olarak ise; deniz yosunu özü (DYÖ), bioenzim (BİO), sığır gübresi (SG), tavuk gübresi (TG), koyun gübresi (KG) ve ticari gübre (NPK) ele alınmıştır. Deneme parsellerinde su ile doymuşluk miktarını en fazla artıran uygulama KG olmuş bunu SG, NP, TG ve şahit izlemiştir. YG uygulaması yapılan parselde su ile doymuşluk özelliği %50.51 olarak belirlenirken YG’siz parselde bu miktar %45.69... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Nutrient turnover; Soil. |
| Ano: 2010 |
URL: http://orgprints.org/33402/1/Organik%20%C4%B1spanak.pdf |
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| Hansen, E.M.; Eriksen, J.; Vinther, F.P.. |
| Ompløjning af afgræsset kløvergræs frigiver store mængder kvælstof (N), som let udvaskes og går tabt. En øget udnyttelse af kvælstof kræver, at udvaskning af nitrat reduceres. Etablering af alm. rajgræs som efterafgrøde kan være en effektiv metode til at mindske udvaskningen, men den mest effektive metode har vist sig at være dyrkning af grønkorn (byg, der høstes ved begyndende skridning) med udlæg af ital. rajgræs. Derved kan N-udnyttelsen øges betydeligt, og udvaskningen nedbringes til et minimum svarende til vedvarende græs på naturarealer. |
| Tipo: Newspaper or magazine article |
Palavras-chave: Nutrient turnover. |
| Ano: 2004 |
URL: http://orgprints.org/5473/1/5473.pdf |
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| Eriksen, J.. |
| The rates of sulphur (S) released to and removed from the soil inorganic pool were estimated using the isotopic dilution technique. In an initial study fresh soil was mixed with combinations of two inorganic S levels (0 and 10 µg S g-1 soil) and three plant residues (wheat straw, perennial ryegrass and oilseed rape) and followed over 32 days of incubation. As 35S recovery was inadequate prior to day 2 and re-mineralisation of immobilised 35S occurred after day 8 thereby invalidating the method, estimates of gross S transformation rates should be based on data sampled between days 2 and 8. In the main experiment 16 plant residues with ranges in S contents of 0.08-0.81%, C/S ratios of 50-604 and lignin content of 0.9-10.8 were mixed with soil and... |
| Tipo: Journal paper |
Palavras-chave: Nutrient turnover. |
| Ano: 2004 |
URL: http://orgprints.org/3175/1/3175.pdf |
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| Tabrika, Ilyass; Azim, Khalid; Mayad, El Hassan; Zaafrani, Mina. |
| Each season, a huge amount of crop residues is regenerated by horticultural production. The main type of wastes are tomato stalks, leaves and axillary buds which are subsequently the result of crop operations like trimming and plants trellising and uprooting. The landfilling of corps residues is a serious problem that need to be solved. Therefore, the valorisation of these organic wastes by composting is a simple way for suitable management and the produced compost could be used as an organic amendment to satisfy the crop growth needs and agronomic soil requirements. The aim of the study is to investigate the impact of the mixing proportion of tomatoes residues and sheep manure using an experimental biocomposter of capacity 220 L with passive aeration... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Composting and manuring; Nutrient turnover. |
| Ano: 2018 |
URL: http://orgprints.org/32792/3/37%20Ilyass%20Tabrika%20Article.pdf |
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| Registros recuperados: 882 | |
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