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Do Tillage Methods Affect Germination and Species Similarity of Soil Weed Seeds Bank?

Abstract

Cultural practices such as tillage used for crop production influence the composition of the weed seed bank in the soil. In order to investigate the effects of different tillage methods on seed bank properties, species diversity and similarity, two laboratory and greenhouse experiments were carried out as randomized complete block design with four replications in 2011. Treatments included: once tillage per year (T1), twice tillage per year (T2), more than twice tillage (T3) and no tillage (T4). Laboratory results showed that the T3 and T4 treatments had the highest and the lowest observed seeds numbers, respectively. Between the laboratory observed weed seeds, the maximum weed seed numbers were Echinochloa crus-galli and Amaranthus retroflexus in the T3 treatment, while Chenopodium album, Polygonum aviculare and Cuscuta campestris had the highest seed numbers in the T2 treatment. At the greenhouse study, Chenopodium album, Amaranthus retroflexus and Hordeum morinum in the T2 treatment were dominant species. The highest diversity was observed in the T2 treatment, and Chenopodium album and Echinochloa crus-galli were dominant species in the T2 and T3 treatments. Maximum species similarity index was achieved from the T1 and T3 treatments. Thereby this study concluded that increasing of tillage number could affect the similarity index of weed seeds and subsequently alters the weed community composition.

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Relationships between soil water repellency and microbial community composition under different plant species in a Mediterranean semiarid forest

indirect effects of tree species diversity drive soil microbial diversity in temperate deciduous forest. Soil Biol. Biochem., 42, 1558-1565. Treseder K.K., Turner K.M., 2007. Glomalin in ecosystems. Soil Sci. Soc. Am. J., 71, 1257-1266. Valladares F., Balaguer L., Martinez-Ferri E., Perez-Corona E., Manrique E., 2002. Plasticity, instability and canalization: is the phenotypic variation in seedlings of sclerophyll oaks consistent with the environmental unpredictability of Mediterranean ecosystems? New Phytol., 156, 457

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Variability of throughfall quantity in a mixed evergreen-deciduous broadleaved forest in central China

.M., Chen, W.L., Tian, Z.Q., Xie, Z.Q., 2005. Altitudinal pattern of plant species diversity in Shennongjia Mountains, Central China. Journal of Integrative Plant Biology, 47, 1431–1449. Zimmermann, A., Zimmermann, B., Elsenbeer, H., 2009. Rainfall redistribution in a tropical forest: Spatial and temporal patterns. Water Resources Research, 45, W11413. Zimmermann, B., Zimmermann, A., Lark, R.M., Elsenbeer., H., 2010. Sampling procedures for throughfall monitoring: A simulation study. Water Resources Research, 46, W01503.

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Temporal changes in soil water erosion on sloping vineyards in the Ruwer- Mosel Valley. The impact of age and plantation works in young and old vines

., Keesstra, S., 2015. Loss of plant species diversity reduces soil erosion resistance. Ecosystems, 18, 5, 881-888. DOI: 10.1007/s10021-015-9869-6. Bertalan, L., Tóth, C.A., Szabó, G., Nagy, G., Kuda, F., Szabó, S., 2016. Confirmation of a theory: reconstruction of an alluvial plain development in a flume experiment. Erdkunde, 70, 271-285. DOI: 10.3112/erdkunde.2016.03.05. Biddoccu, M., Ferraris, S., Cavallo, E., Opsi, F., Previati, M., Canone, D., 2013. Hillslope vineyard rainfall-runoff measurements in relation to soil infiltration and

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Preparation and Implementation of a Test Flight of Lightweight, Unmanned Stratospheric Balloon with Gopro Camera Mounted and Analysis of Acquired Material

., 2017, „Measuring and testing the parameters of a battery pack designed for powering unmanned aircraft systems at various temperatures” Transactions of the Institute of Aviation No 3(248), pages 46-62. [17] Popowski S., 2011, „Verification of the idea of altitude and rate of climb measurement in selected aircraft” Transactions of the Institute of Aviation No 221, pages 143-160. [18] Kotlarz J. and Kacprzak M. 2017, „Species diversity of forest stands estimation algorithm using RGB images of the tree crowns” Measurements Robotics Automation 2017/3, Volume

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