Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Walter Kühbauch"'
Autor:
Jürgen Schellberg, Walter Kühbauch, Thomas Gebbing, Melanie Kriszan, Wulf Amelung, Erich M. Pötsch
Publikováno v:
Agriculture, Ecosystems & Environment. 184:158-167
High application rates of farmyard manure on grasslands generally results in nitrogen (N) losses and a shift in N isotope composition. The aim of this study was to elucidate to which degree the 15N signatures of miscellaneous N pools at two different
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d8a05d2c8d9a43c65a75247dac4a70c
https://doi.org/10.1016/j.agee.2013.11.028
https://doi.org/10.1016/j.agee.2013.11.028
Publikováno v:
Plant and Soil. 325:157-169
Tracing back the N use efficiency of long-term fertilizer trials is important for future management recommendations. Here we tested the changes in natural N-isotope composition as an indicator for N- management within a long-term fertilization lysime
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c95333046e2d7029b88ea9507393c35
https://doi.org/10.1007/s11104-009-9965-5
https://doi.org/10.1007/s11104-009-9965-5
Autor:
Steffen Gebhardt, Walter Kühbauch
Publikováno v:
Precision Agriculture. 8:1-13
In Gebhardt et al. (2006) an object-oriented image classification algorithm was introduced for detecting Rumex obtusifolius (RUMOB) and other weeds in mixed grassland swards, based on shape, colour and texture features. This paper describes a new alg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8160d920dd9211daeb899eb3dc07b322
https://doi.org/10.1007/s11119-006-9024-7
https://doi.org/10.1007/s11119-006-9024-7
Publikováno v:
Precision Agriculture. 7:281-293
One of the most important tasks in precision farming is the site-specific application of fertilisers and pesticides in heterogeneous large-area fields. For such site-specific crop management, effective remote sensing methods for the detection of crop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b2897c3d88231f5693626ea28ee1370d
https://doi.org/10.1007/s11119-006-9008-7
https://doi.org/10.1007/s11119-006-9008-7
Publikováno v:
Precision Agriculture. 7:165-178
Digital image processing has the potential to support the identification of plant species required for site-specific weed control in grassland swards. The present study focuses on the identification of one of the most invasive and persistent weed spe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7600b953f4aa6b4c7a82bda8b631ca28
https://doi.org/10.1007/s11119-006-9006-9
https://doi.org/10.1007/s11119-006-9006-9
Publikováno v:
Nematology. 8:273-286
Two glasshouse experiments with sugar beet cvs Penta and Macarena inoculated, respectively, with 0 or 1500 and 0, 500, 1000 or 1500 juveniles of Heterodera schachtii, were conducted to estimate the capability of laser-induced chlorophyll fluorescence
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f18b12de578e6e97b9aa4d1bb3c6ccb
https://doi.org/10.1163/156854106777998755
https://doi.org/10.1163/156854106777998755
Publikováno v:
Journal of Plant Nutrition and Soil Science. 165:640-647
In einem Beweidungsversuch mit Rindern auf Dauergrunland eines niederschlagsreichen Mittelgebirgsstandortes im Bergischen Land wurden in vier Sickerwasserperioden zwischen 1993 und 1997 bei mittleren Jahresniederschlagen von 1.362 mm die NO3-Austrage
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a87dc4bb223a81cf2e040770d52adcc
https://doi.org/10.1002/1522-2624(200210)165:5<640::aid-jpln640>3.0.co
https://doi.org/10.1002/1522-2624(200210)165:5<640::aid-jpln640>3.0.co
Publikováno v:
Journal of Agronomy and Crop Science. 187:231-239
Leaf anatomy of a fast- and a slow-growing grass as dependent on nitrogen supply The grass species Lolium perenne and Festuca rubra, originating from habitats with differing N-availability, differ in their relative growth rate. This is mainly caused
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4310a95e32bf602b8d753992a82e48dd
https://doi.org/10.1046/j.1439-037x.2001.00534.x
https://doi.org/10.1046/j.1439-037x.2001.00534.x
Publikováno v:
Plant, Cell and Environment. 22:851-858
Significant mobilization of protein and carbohydrates in vegetative plant parts of wheat regularly occurs during grain filling. While this suggests a contribution of reserves to grain filling, the actual efficiency of mobilized assimilate conversion
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41fd2de7f969b4293042c3ce904026e3
https://doi.org/10.1046/j.1365-3040.1999.00436.x
https://doi.org/10.1046/j.1365-3040.1999.00436.x
Publikováno v:
Plant, Cell and Environment. 21:301-313
cv, cultivar δ, deviation of C isotope composition from a standard Δ, C isotope discrimination WSC, water soluble carbohydrates Steady-state labelling of all post-anthesis photosynthate of wheat was performed to assess the mobilization of pre-anthe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1ce04be20f371139bedcf8718461015
https://doi.org/10.1046/j.1365-3040.1998.00286.x
https://doi.org/10.1046/j.1365-3040.1998.00286.x