Tillage and Rotation effects on Bromus diandrus Roth: A Lesson Learned from Fields in Northern Spain

2021 ◽  
Vol 5 (4) ◽  
pp. 728-736
M. I. Santín-Montanyá ◽  
A. Sombrero-Sacristán
2020 ◽  
Vol 100 (3) ◽  
pp. 245-252
M.I. Santín-Montanyá ◽  
A. Sombrero Sacristán

In barley cropping systems of northern Spain, agronomic practices and weather conditions are key components of weed control efficacy. We compared the short-term effects of conventional tillage with minimum tillage (MT) and zero tillage (ZT), in barley monoculture and barley rotation systems. Weed density and weed species number were measured at tillering and flowering barley stages. We found that tillage system can influence weed density and weed species establishment due to, in part, the available light for weed seeds. The results obtained indicate that the MT system facilitates the prevalence of the grass weed Bromus diandrus Roth (50.37%) and the annual dicots Galium aparine (L.) and Buglossoides arvensis (L.) I.M. Johnst. abundant were high in the MT system too, 43.71% and 43.97% respectively. The germination of these species showed a high dependence on light availability. We saw that barley-monoculture plots had a large infestation of Bromus (71.29%) and barley-rotated plots presented more infestation of Galium and Buglossoides (74.36% and 84.4%, respectively). After herbicide application, weed infestation in conservation systems was reduced in barley-rotated plots compared with barley-monoculture. If conservation systems avoided the presence of dominant weeds, the weight of each weed species was balanced within competitive relationships of the cropping systems. Our results confirmed that MT and ZT systems favour different weed species emergences in barley-rotated plots. The combination of MT and barley-rotated cropping system resulted in greater weed diversity and lower total weed density.

2002 ◽  
Vol 66 (2) ◽  
pp. 464 ◽  
M. Camps Arbestain ◽  
M. E. Barreal ◽  
F. Macías

Plants ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 703
Ximena Huérfano ◽  
José-María Estavillo ◽  
Miren K. Duñabeitia ◽  
María-Begoña González-Moro ◽  
Carmen González-Murua ◽  

Improving fertilizer nitrogen (N) use efficiency is essential to increase crop productivity and avoid environmental damage. This study was conducted during four crop cycles of winter wheat under humid Mediterranean conditions (Araba, northern Spain). The effects of N-fertilization splitting and the application of the nitrification inhibitors (NIs) 3,4-dimethylpyrazole phosphate (DMPP) and 2-(3,4-dimethyl-1H-pyrazol-1-yl) succinic acid isomeric mixture (DMPSA) as strategies to improve grain quality were examined. The hypothesis of this study was to test if the partial ammonium nutrition and the reduction of fertilizer losses presumably induced by the application of NIs can modify the grain gliadin and glutenin protein contents and the breadmaking quality (dough rheological properties). Among both NIs assayed, only DMPP showed a slight effect of decreasing the omega gliadin fraction, following splitting either two or three times, although this effect was dependent on the year and was not reflected in terms of dough extensibility. The slight decreases observed in grain quality in terms of dough strength and glutenin content induced by DMPP suggest that DMPSA is more promising in terms of maintaining grain quality. Nonetheless, these poor effects exerted by NI application on grain quality parameters did not lead to changes in the quality parameters defining the flour aptitudes for breadmaking.

Raúl Fernández-Ramón ◽  
Jorge J. Gaitán-Valdizán ◽  
Lara Sánchez-Bilbao ◽  
José L. Martín-Varillas ◽  
David Martínez-López ◽  

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