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Cooper, J. M.; Schmidt, C. S.; Lueck, L.; Shotton, P. N.; Turnbull, C.; Leifert, C.. |
The effect of organic, low-input and conventional management practices on barley yield and disease incidence was assessed in field trials over two years. Conventional fertility management (based on mineral fertiliser applications) and conventional crop protection (based on chemosynthetic pesticides) significantly increased the yield of winter barley as compared to organic fertility and crop protection regimes. Severity of leaf blotch (Rhynchosporium secalis) was highest under organic fertility and crop protection management and was correlated inversely with yield. For mildew (Erysiphe graminis), an interaction between fertility management and crop protection was detected. Conventional crop protection reduced severity of the disease, only under conventional... |
Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Cereals; Pulses and oilseeds. |
Ano: 2007 |
URL: http://orgprints.org/10357/1/cooper%2Detal%2D2007%2Dwinter_barley.pdf |
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Schmidt, C. S.; Agostini, F.; Simon, A. M.; Whyte, J.; Townend, J.; Leifert, C.; Killham, K.; Mullins, C.. |
In five different soils originating from Scotland (Craibstone and Cruden Bay), Germany ( Magdeburg and Uelzen) and Greece (Tymbaki), Pseudomonas fluorescens B5 reached higher population sizes (4.7-5.7 log CFU/plant) on 12-day-old sugar beet seedlings than Bacillus subtilis MBI 600 (4.1 - 4.8 log CFU/ plant). Total population size per plant was not affected by soil type. In all five soils, the antagonists reached highest population densities in the hypocotyl and the upper 2 cm root section (P. fluorescens B5: 5.2-6.8 log(10) CFU/g plant fresh weight, Bacillus subtilis MBI 600: 5.2 - 6.1 log(10) CFU/g plant fresh weight) and declined to 0 - 3 log(10) CFU below 4 cm root depth. Colonisation by P. fluorescens B5 down the root was slightly increased in the... |
Tipo: Journal paper |
Palavras-chave: Crop health; Quality; Protection Soil biology. |
Ano: 2004 |
URL: http://orgprints.org/10761/1/Schmidt_et_al_2004.pdf |
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