|
|
|
| Registros recuperados: 98 | |
|
|
| Bufler, Gebhard; Hübner, Oliver; Funk, Rainer. |
| Yield and quality (bulb size, sugar content and composition, pungency, initial sprout growth) of early and late transplanted and directly sown onions (cv. Sturon) were compared in field experiments (2009-2011) at different intensities of weeding (weed-free or mechanical weed control only). Early transplanting (weed-free) resulted in the highest yield and best quality performance, whereas late transplanting combined with mechanical weed control only (including harrowing weeds before transplanting onions) resulted in medium yield and quality, however, at a relatively low work-input. It is suggested that infection by powdery mildew was the key limiting factor in the development of yield and quality in late-transplanted and directly-sown onions. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Vegetables Crop health; Quality; Protection Weed management. |
| Ano: 2013 |
URL: http://orgprints.org/21314/1/21314_Bufler.pdf |
| |
|
| |
|
| |
|
| |
|
|
| Hansen, Preben Klarskov. |
| At the time for weed control, either chemical or physical, the potential yield of the crop (and thus the potential size of the yield loss due to weeds) is very uncertain, as only a minor part of the growing season has passed and the time for the major yield formation is after the weed control. The aim of this study was to investigate four scenarios of using sensor-based reflectance, vegetation cover- and canopy structure measurements in the early growth stages to estimate the potential yield of four pure spring barley varieties and four variety mixtures of spring barley grown in competition with weeds under two different nutrient levels in two years. |
| Tipo: Working paper |
Palavras-chave: Crop health; Quality; Protection Weed management. |
| Ano: 2007 |
URL: http://orgprints.org/11354/1/11354.doc |
| |
|
| |
|
| |
|
|
| Askegaard, Margrethe. |
| The appropriate combination of crops and green manures prevents spread of perennial weeds and increases crop yields and quality. Weed-suppressing crop rotations are absolutely essential for sustainable organic arable farming. Practical recommendation Basic rules • Implement green manures, such as clover or lucerne, in at least 20 % of the rotation. • Do not grow more than 50 % of cereals with low weed competitiveness in the rotation. Do not cultivate such crops for more than 2 consecutive years. • In fields with prevalent high weed pressure cultivate only crops with high weed competitiveness. Points to consider in case of high weed pressure: • Do not grow grain legumes where perennial weeds are a problem. Late harvest in combination with loose... |
| Tipo: Practice tool |
Palavras-chave: Crop combinations and interactions Crop health; Quality; Protection Weed management. |
| Ano: 2017 |
URL: http://orgprints.org/31053/1/PA_038_Crop_Rotation_QR.pdf |
| |
|
|
| Bellostas, Natalia; Nielsen Kudsk, Per; Sørensen, Jens C.; Sørensen, Hilmer. |
| Glucosinolates are allelochemicals present in all Brassica plants. Upon hydrolysis by endogenous enzymes they produce a series of biologically active compounds, such as isothiocyanates and their deriva-tives among others. These compounds have marked fungicidal, nematocidal and herbicidal effects and therefore their use as biodegradable natural products for crop protection has attracted much attention in the last years. A number of these compounds, either individually or in combination, were tested against Sinapis alba and Lollium perenne in Petri dishes bio-assays. C50 values as low as 0.7 and 0.2 mM were obtained. This may open the possibility for using glucosinolate hydrolysis products as herbicides. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Weed management. |
| Ano: 2006 |
URL: http://orgprints.org/7501/1/Glucosinolates_for_weed_control.pdf |
| |
|
|
| Çolak, Ayşegül; Çelikel, Gülendam; Ekmekçi, Uğur; Özarslandan, Adem; Aksoy, Eda; Karataş, Ali; Yurtmen, Melike; Sezen, Metin; DEMİRTAŞ, Bekir; Arslan, Rasim; Türkay, Cengiz; Subaşı, Sedat; Öztürk , Cahit. |
| Bu çalışma, 2004-2007 yılları arasında Alata Bahçe Kültürleri Araştırma Enstitüsü’ne ait organik-topraklı, topraksız kültür (organik-inorganik yetiştirme ortamları) ve kontrol seralarında yürütülmüş olup, örtü altı organik domates yetiştiriciliğinde karşılaşılan hastalık, zararlı ve yabancı otlara karşı organik tarıma uygun mücadele yöntemlerinin uygulanabilirliği, en uygun sulama programı araştırılmıştır. Organik-topraklı sera ve organik-inorganik kökenli dört farklı yetiştirme ortamlarından oluşan topraksız kültür seralarında her türlü girdiler ve yapılacak işlemler Tarım Bakanlığınca yayımlanan organik tarım yönetmeliğe uygun olarak seçilmiştir. Organik-topraklı seradan elde edilen ürüne ‘organik ürün’ sertifikası alımına yönelik gerekli denetlemeler... |
| Tipo: Book chapter |
Palavras-chave: "Organics" in general Farming Systems Crop health; Quality; Protection Weed management. |
| Ano: 2010 |
URL: http://orgprints.org/21425/1/Organik_%C3%96rt%C3%BCalt%C4%B1_Domates.pdf |
| |
|
|
| Lederer, Henrike M.; Hofmeijer, Merel A.J.; Gerowitt, Bärbel. |
| Ackerunkräuter sind in der praktischen Landwirtschaft immer noch ein wichtiges Thema. Besonderes im ökologischen Landbau gibt es weiterhin Forschungsbedarf. Im Rahmen der vorliegenden Arbeit wurde daher die Ackerunkrautvegetation von neun ökologisch bewirtschafteten Landwirtschaftsbetrieben in Mecklenburg-Vorpommern näher untersucht. Dafür wurde die Unkrautvegetation von 17 Wintergetreideflächen im Juni und Juli 2016 bonitiert. Es wurden auf jeder Ackerfläche drei Untersuchungslinien angelegt, jeweils mit einer Gesamtoberfläche von 100 Quadratmetern pro Linie. Dabei wurden die vorgefundenen Unkrautarten dokumentiert und die Unkrautdichte der einzelnen Arten bestimmt. Für die weitere Datenanalyse wurde die Alpha-Diversität und der Shannon-Wieder Index der... |
| Tipo: Thesis |
Palavras-chave: "Organics" in general Crop health; Quality; Protection Weed management. |
| Ano: 2016 |
URL: http://orgprints.org/31455/1/Bachelorarbeit_Henrike_Lederer.pdf |
| |
|
|
| Schmid, Andi. |
| Das Merkblatt enthält praxisnahe Informationen zur Produktion von hochwertigen Strauchbeeren wie Himbeeren, Brombeeren, Johannisbeeren, Stachelbeeren und Heidelbeeren. Weiterhin: übersichtliche Hinweise zur Planung, Standortwahl, Sortenauswahl, Bodenvorbereitung und Pflanzung, Bewässerung, Nährstoffversorgung, Witterungsschutz, Beikrautregulierung, Ernte und Lagerung. (Diese Publikation enthält spezifische Informationen für die Schweiz) |
| Tipo: Book |
Palavras-chave: Fruit and berries Breeding; Genetics and propagation Crop health; Quality; Protection Weed management. |
| Ano: 2002 |
URL: http://orgprints.org/25463/1/1006-strauchbeeren.pdf |
| |
|
| |
|
| |
|
| |
|
|
| Hofmeijer, Merel A.J.; Melander, Bo; Krawczyk, Roman; Salonen, Jukka; Verwijst, Theo; Zarina, L.; Gerowitt, Bärbel. |
| Weeds are a perpetual challenge in Organic agriculture. However, they serve multiple ecosystem services and a low competitive weed cover can be tolerated. Adding to this, is the fact that only a few species prove problematic for both the crop and the farmer. The international PRODIVA project researches the effect of crop diversity strategies on the diversity of weed communities, hypothesizing that by increasing the weed diversity, the development of problematic weeds will mitigated. A preparatory study was conducted to list the most problematic weed species in spring sown cereals in the countries involved with PRODIVA. For this a literature review was conducted in all participating countries, collecting local sources including grey literature. This was... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Weed management. |
| Ano: 2017 |
URL: http://orgprints.org/31583/1/Problematic%20weed%20species%20in%20organic%20arable%20agriculture.pdf |
| |
|
| |
|
| |
|
|
| Geißler, M.; Armengot, Laura; Mäder, Paul; Krauss, Maike. |
| Armengot L, Berner A, Blanco-Moreno J, Mäder P & Sans FX (2014) Long-term feasibility of reduced tillage in organic farming. Agron Sustain Dev 35(1): 339-346. Cooper J et al. (2016) Shallow non-inversion tillage in organic farming maintains crop yields and increases soil C stocks: a meta-analysis. Agron Sustain Dev 36: 1-20. Gruber S & Claupein W (2009) Effect of tillage intensity on weed infestation in organic farming. Soil and Tillage Research 105(1): 104-111. Montgomery DR (2007) Dirt: The Erosion of Civilizations. University of California Press, California. Moonen AC & Barberi P (2004) Size and composition of the weed seedbank after 7 years of different cover-crop-maize management systems. Weed Research 44(3): 163-177. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil tillage Crop health; Quality; Protection Weed management. |
| Ano: 2017 |
URL: http://orgprints.org/31576/1/Beikrautsamenvorrat%20im%20Vergleich%20reduzierter%20und.pdf |
| |
|
|
| Bertholtz, Erik. |
| Kvickrot (Elytrigia repens (L.) Desv. ex Nevski) är ett flerårigt ogräs som är vanligt förekommande i svenska odlingsmarker. Innan kemisk totalbekämpning med glyfosat var kvickrot ett vanligt problem i lantbruket. Ogräset kontrollerades då med intensiv jordbearbetning. Idag är kvickrot ett viktigt ogräs i ekologisk odling och i system med reducerad jordbearbetning. Dock måste kvickrot fortfarande anses vara ett problem i konventionella system eftersom glyfosat måste användas återkommande för att slippa konkurrenseffekterna från kvickrot. Detta arbete är ett delprojekt som ingår i ett större projekt som syftar till att utveckla ekologiska odlingssystem som inte är lika beroende av jordbearbetning för att kontrollera kvickrot som dagens system. I arbetet... |
| Tipo: Thesis |
Palavras-chave: Soil tillage Crop health; Quality; Protection Weed management. |
| Ano: 2015 |
URL: http://orgprints.org/34107/1/bertholtz_e_160111.pdf |
| |
| Registros recuperados: 98 | |
|
|
|
