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| Registros recuperados: 882 | |
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| AZIM, Khalid; OUYIHYA, Khalid; AMELLOUK, Aomar; PERISSOL, Claude; THAMI ALAMI, Imane; SOUDI, Brahim. |
| Different organic wastes (waste of tomato leaves and stems, sheep manure, olive mill waste and melon waste) were mixed with different proportions for different C/N ratio to make better use of tomato waste as it constitutes the majority of horticultural waste in the Souss-Massa region (south-western of Morocco). The objective of this study was to evaluate the effect of C/N ratio on the physicochemical parameters during aerobic composting process (temperature, relative humidity, pH, EC...), and the quality of the compost. The effect of each produced compost was also tested by its incorporation at different rates into sandy soil. The four studied C/N ratios (treatments) were: C/N=25; C/N=30; C/N=35 and C/N=40. Results revealed that the treatment C/N=35 has... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Composting and manuring; Nutrient turnover. |
| Ano: 2014 |
URL: http://orgprints.org/23554/1/23554_MM.pdf |
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| Lagomarsino, A.; Agnelli, A.E.; Fulchin, E.; Giffard, B.. |
| Soil enzymes were used to assess the impact of different treatments applied in four farms, each one with three vineyards as replicates, on soil functionality. 8 enzymes related to C, N, S and P cycling were measured and functional diversity indexes were estimated. Three treatments were compared: compost, green manure and dry mulching with respect to degraded and non-degraded soil. The four vineyards showed different enzymatic patterns and response to treatments. Vineyards with the largest difference between degraded and non-degraded soil have benefited more largely from the treatments. In particular, dry mulching seemed to be more effective than green manure or compost, with the exception of San Disdagio. However, the effect the short term. |
| Tipo: Journal paper |
Palavras-chave: Soil quality; Soil biology; Composting and manuring; Nutrient turnover; Soil tillage; Soil. |
| Ano: 2018 |
URL: http://orgprints.org/33466/1/7891-25954-1-PB.pdf |
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| Taube, Friedhelm; Wachendorf, M.; Loges, R.. |
| Zusammenfassung: Aus aggregierter Sicht der pflanzenbaulichen Leistung wie des abiotischen Ressourcenschutzes ist festzuhalten: 1) der Futterbau auf den sandigen Standorten der Geest ist bei reduzierter N-Intensität durch geringe Grenzertragsverluste, aber hohe Reduktionen der Nitratauswaschungen geprägt; im Marktfruchtbau des östlichen Hügellandes herrschen inverse Beziehungen vor. 2) Ein Flächenbilanzsaldo von +20 bis +40 kg/ha/Jahr (plus "unvermeidbare gasförmige Verluste") ist als Grenzbereich der guten fachlichen Praxis auf den Futterbaubetrieben der Geest nur durch erhebliche Reduktionen der Bewirtschaftungsintensität zu erreichen. Auf den Marktfruchtbetrieben des östlichen Hügellandes besteht dagegen eine schwache Beziehung zwischen dem... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Nutrient turnover; Air and water emissions. |
| Ano: 2001 |
URL: http://orgprints.org/2367/1/handbuch%2Dkein%2DDokument.pdf |
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| Pinxterhuis, Ina; Boer, H. de; Eekeren, N. van; Stienezen, M.W.J.. |
| To establish N-efficient crop rotations with perennial ryegrass/white clover, maize and triticale, a 9-year field experiment was executed on an organic experimental farm in the Netherlands. Crop rotations with different levels of slurry (dairy effluent from the free-stall barn, average dry matter content of 7%) application were tested for dry matter (DM) yield, N yield, soil mineral N in autumn, soil organic matter and soil organic N. Maize cropping and slurry application both increased annual DM yield. However, the second year of grass/ clover following maize, maize itself and slurry applications each resulted in higher soil mineral N in autumn, increasing the risk of nitrate leaching losses. A rotation of 4 years of grass/clover, 2 years of maize and 1... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Composting and manuring; Nutrient turnover; Soil. |
| Ano: 2013 |
URL: http://orgprints.org/26765/1/2816.pdf |
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| Strøm, Turid; Hansen, Sissel; Govasmark, Espen. |
| For alle mineralene unntatt klor var det et høgere innhold i 2. slått enn i 1. slått. Flere av planteprøvene viste så lavt innhold av ett eller flere makromineral at det antagelig reduserte avlingsnivået. Ut fra mineralbehovet hos sau og storfe viste plante- og blodprøver at flere av besetningene hadde liten tilførsel av svovel, fosfor, selen og E-vitamin, mens tilførselen av magnesium, kobolt og kopper var tilfredsstillende. Videre bearbeidelse av innsamla datamateriell og utprøving av ulike selentilskudd til jord og planter vil danne grunnlaget for å trekke endelig konklusjoner i forskningsprogrammet, samt utarbeide praktiske råd om mineraltilførsel til planter og drøvtyggere i økologisk landbruk. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Nutrient turnover; Dairy cattle; Sheep and goats; Feeding and growth. |
| Ano: 2003 |
URL: http://orgprints.org/6927/1/Mineral%2DSIP_til_Kvithamardagene__22.01.03_m_fig.doc |
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| AdeOluwa, O.O.; Thomas, E.Y.; Bello, A; Joshua, B. |
| The need for an increased production of vegetables to meet the human dietary necessitated a research in the use of different organic resources, for improving the soil fertility as well as improved yield and quality of amaranth. Thus, this report investigated the potential of two brewery waste based composts on soil fertility for amaranth (Amaranthus caudatus) and Jackbean (Canavalia ensiformis) intercrop. Six treatmentsL Compost IBBW1 (Ibadan brewery waste-based compost Grade A), Compost IBBW2 (Ibadan brewery waste-based compost Grade B), Compost IBBW1+ Jackbean (JB), Compost IBBW2+ Jackbean (JB), Jackbean and control (no fertilizer) were used. The compost was applied at the rate of 100 kgN/ha. The experiment was laid in a randomized complete block design... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil quality; Nutrient turnover. |
| Ano: 2015 |
URL: http://orgprints.org/28885/1/POTENTIALS%20OF%20TWO%20BREWERY%20WASTE3rd%20Africa%20Organic%20Conference.docx |
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| Thomsen, I. K.; Schjønning, P.; Christensen, B. T.. |
| In order to investigate the effect of soil moisture and texture on C and N mineralization of applied organic matter, sheep faeces was sandwiched between two halves of intact soil cores and incubated at 20°C. The soils contained 10.8 (L1), 22.4 (L3) and 33.7% (L5) clay, respectively, and were drained to seven different matric potentials in the range –15 to –1500 hPa. Evolution of CO2-C was determined during four weeks of incubation. Contents of NO3-N, 15N and microbial biomass N were determined at the end of the incubation. The net release of CO2-C from the faeces (estimated as the difference between soils with and without faeces) and the total CO2-C evolution from soils with faeces was not related to soil moisture contents. Most CO2-C evolved from faeces... |
| Tipo: Journal paper |
Palavras-chave: Nutrient turnover. |
| Ano: 2003 |
URL: http://orgprints.org/271/1/HarmTaskBf%C3%A6ces_rev1.doc |
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| Bruun, Sander; Hansen, Trine L.; Christensen, Thomas H.; Magid, Jakob; Jensen, Lars S.. |
| Source separation, composting and anaerobic digestion, with associated land application, are increasingly being considered as alternative waste management strategies to landfilling and incineration of municipal solid waste (MSW). Environmental life cycle assessments are a useful tool in political decision-making about waste management strategies. However, due to the diversity of processed organic MSW and the situations in which it can be applied, the environmental impacts of land application are very hard to determine by experimental means. In the current study, we used the agroecosystem model Daisy to simulate a range of different scenarios representing different geographical areas, farm and soil types under Danish conditions and legislation. Generally,... |
| Tipo: Journal paper |
Palavras-chave: Nutrient turnover; Soil quality. |
| Ano: 2006 |
URL: http://orgprints.org/9223/1/9223.pdf |
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| PICCIN, R.; KAMINSKI, J.; CASALI, C.A.; CALEGARI, A.; GEBERT, F.H.; SARTORI, R.J.B.; GUBIANI, E.; ROSSATO, L.F.R.. |
| O sistema de manejo pode afetar a disponibilidade de nutrientes para as plantas, em decorrência do sistema de rotação de culturas e da quantidade de resíduo vegetal presente na superfície do solo. O objetivo deste trabalho foi avaliar a quantidade de nitrogênio (N) e fósforo (P) acumulados no tecido vegetal de aveia preta, trigo, centeio, ervilhaca, nabo e tremoço azul, além de verificar seu estado nutricional de N e P. O experimento esta instalado no Instituto Agronômico do Paraná (IAPAR) em Pato Branco, Paraná, em um Latossolo Vermelho aluminoférrico. Em maio de 2011 os tratamentos foram semeados, sendo seis plantas de cobertura: trigo, aveia preta, centeio, ervilhaca, nabo forrageiro e tremoço azul cultivados sob Sistema Plantio Direto (SPD) e Sistema... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Nutrient turnover; Soil tillage; Greenhouses and coverings; Farm nutrient management. |
| Ano: 2012 |
URL: http://orgprints.org/29926/1/2012%20-%20Piccin%20-%20Fertbio.pdf |
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| Baddeley, J. A.; Döring, Thomas F.; Hatch, David; Marshall, Athole; Pearce, Bruce; Roderick, S; Stobart, Ron; Storkey, Jonathan; Watson, C.A.; Wolfe, Martin. |
| There is a pressing need to develop arable cropping systems that are both more efficient in their use of nitrogen (N) and more resilient to an increasingly variable and unpredictable climate. One potential solution is to use species-rich mixtures of grasses and legumes in the fertilitybuilding phase of a ley/arable crop rotation. These mixtures may reduce N losses and increase productivity of the following crop. They may also have other important benefits such as increased in-field biodiversity. In this project, legume and grass species with a range of tolerances to different environmental conditions, and with differing growth characteristics, are being grown individually and as a mixture across the UK, and their performance assessed. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Nutrient turnover; Crop husbandry. |
| Ano: 2010 |
URL: http://orgprints.org/19774/1/SACSEPA2010JAB.pdf |
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| Main, Michael; Lynch, Derek; Ward, Amanda; Voroney, Paul; Schneider, Kim; Juurlink, Shelly. |
| Les légumineuses sont une source importante d'azote (N) en production biologique. Toutefois, il est prouvé que de trop faibles intrants peuvent entraîner une carence de phosphore du sol (P) dans les fermes laitières biologiques (Roberts et coll., 2008), et une réduction possible du rendement des cultures et de la fixation de N par les légumineuses fourragères. La présente étude vise à évaluer le lien entre la dynamique du P du sol et la fixation de l’azote par les légumineuses en gestion biologique (BNF). L’étude a deux principaux sous-projets : 1. Étude sur le terrain de la concentration du P dans le sol, et rendement des légumineuses fourragères et fixation de N dans les fermes laitières de l’Ontario et de la Nouvelle-Écosse, Canada. 2. Études en... |
| Tipo: Report |
Palavras-chave: Pasture and forage crops; Nutrient turnover; Farm nutrient management. |
| Ano: 2010 |
URL: http://orgprints.org/19552/1/OACC_Technical_Bulletin_2010%2D40_f_1.pdf |
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| Devakumar, N.; Subha, S.; Rao, G.G.E.; ImranKhan, J.. |
| The present study revealed that higher grain and stover yield, plant height and number of leaves in maize with panchagavya, cow urine but it was comparable to recommended fertilizer treatments at higher level (200% and 300%). It can be concluded that presence of rich plant growth substances, both major and micro nutrients, beneficial microbial population in organic liquid manures help to bring rapid changes in phenotypic characteristics of plants and also improves the growth and ultimately improve the productivity of the crops. Liquid organic manure like panchagavya could be prepared locally by farming community and obtain increased yield levels. Such practices would pave way to reduce use of external inputs and increase sustainability among organic... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Composting and manuring; Nutrient turnover. |
| Ano: 2014 |
URL: http://orgprints.org/23358/1/23358%20N.%20Devakumar_OWC_research%20track%202014%20Panchagavya-1_MM.pdf |
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| Hospers-Brands, A.J.T.M.; Anema, D.; Bus, M.C.. |
| 2013 was the second year of the "PlantyOrganic" system development in practice. The six-year rotation is laid out and measurements took place at soil and crop. With the exception of the potatoes in 2013 all crops had the pre-crop as foreseen in the design. The fertilizers used were completely produced in the own system, as foreseen in the system design. The amounts of nitrogen applied were about 45 % higher than in the design. Soil nitrogen is measured and used as input in the nitrogen model NDICEA. There was a sufficient match between measured and calculated level of soil mineral nitrogen. The crops performed well, with a high yield in carrots and oats, and a disappointing yield in wheat. In wheat nitrogen was limiting for the yield, we do not yet have a... |
| Tipo: Report |
Palavras-chave: Nutrient turnover; Air and water emissions; Farm nutrient management. |
| Ano: 2014 |
URL: http://orgprints.org/26064/1/2892.pdf |
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| Kahle, Petra; Baum, Christel; Borchwardt, Monika. |
| The effects of ecological vs. conventional farming on several biological, chemical and physical soil properties were investigated at the arable test site Gülzow (Northeast Germany). After ten years of ecological farming increased activities of dehydrogenase, β-glucosidase and alkaline phosphatase in the soil were measured. Low effects on the chemical soil properties like content of Corg, Nt and soil organic matter and no significant effects on physical soil properties like density, porosity and water retention were observed. -- (Sprache des Volltextes: Deutsch) |
| Tipo: Journal paper |
Palavras-chave: Nutrient turnover; Soil biology; Soil quality. |
| Ano: 2004 |
URL: http://orgprints.org/5126/1/h33%2D04.pdf |
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| Registros recuperados: 882 | |
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