Associations and communities of cereal crops of the Łuków Plain. Part I. Light soil associations

Zofia Rzymowska,Teresa Skrajna

doi:10.5586/aa.2011.066

Zofia Rzymowska, Teresa Skrajna

Open Access

https://doi.org/10.5586/aa.2011.066

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Abstract

The characteristics of phytocenoses developing on light soils in cereal crops of the Łuków Plain are presented in the paper. The studies were carried out between 2003 and 2006 in 182 localities. Cereal crops on light soils were frequently occupied by patches of Arnoserido-Scleranthetum. The association reaches the eastern limit of its geographic range in the mesoregion. The phytocenoses were noted under various moisture conditions and were the floristically poorest cereal communities in the studied area. The paper presents new data on the occurrence of Arnoserido-Scleranthetum on its eastern distributional limits. Quite frequently, the patches of Vicietum tetraspermae scleranthetosum, especially of its variant with Juncus bufonius and Vicietum tetraspermae typicum variant with Rhinanthus serotinus, were also frequently noted in the studied mesoregion.Small patches of Papaveretum argemones were recorded very seldom.

Highlights

The floristic composition of segetal communities is formed under the influence of numerous biotic and anthropogenic factors
The most important are these related to habitat characteristic, e.g. soil type, its reaction, and content of nutrient elements. These factors can be considerably modified by the intensity of applied agricultural technology, especially by widespread application of herbicides and nitrogen fertilizers
The aim of the work was to make a phytosociological classification and floristic analysis of communities developing in cereal crops of the Łuków Plain

Summary

INTRODUCTION

The floristic composition of segetal communities is formed under the influence of numerous biotic and anthropogenic factors. The most important are these related to habitat characteristic, e.g. soil type, its reaction, and content of nutrient elements. These factors can be considerably modified by the intensity of applied agricultural technology, especially by widespread application of herbicides and nitrogen fertilizers. The use of certified seed material and new, more fertile cereal varieties, forming dense crop stands, visibly affect the physiognomy of these communities.

METHODS

Association

37 II 70 II 60 III 100