Trinexapac-ethyl is one of the newest growth regulators used in agriculture and horticulture. As a most growth retardants it acts by inhibiting gibberellin (GA) biosynthesis. A field study was conducted to determine the effects of trinexapac-ethyl on growth of winter wheat. Trinexapac ethyl was used alone (75 g a.i./ha and 125 g a.i./ha) and in the mixture with chlorocholine chloride (50 g a.i./ha + 675 g a.i./ha) at the 2nd node stage. Trinexapac-ethyl and its mixture with CCC activity was weather dependent. Their influence on the crop was strictly related to the temperature and rainfall during an individual year of trials. Plant growth regulators much more influenced winter wheat plants in abundant rainfall and higher temperature conditions. Lodging was not observed during the experiment.
This paper presents the groundwater modelling of Beni Abbes palm grove in Southwest Algeria. Beni Abbes oasis alluvial aquifer is part of the Saoura Valley aquifer system, including a loose slick contained in a Quaternary alluvial em-bankment that fills the Beni Abbes basin. To address local needs, industry and agriculture, groundwater has been intensively exploited in recent years. Groundwater of the Beni Abbes oasis in the Saoura Valley oasis chain, is composed of a com-plex system, whose layer of alluvial terraces ensures a vital role for a 40-hectare palm grove. Due to its architectural position in the local aquifer system, the alluvial aquifer is mainly fed by the Great Western Erg and sometimes by the Saoura River floods. Based on the hydrogeological, hydrochemical characterisation and hydrodynamic modelling of the alluvial aquifer system of the Beni Abbes oasis, the mathematical model of finite difference and finite difference at steady state leads to the estimation of the hydrodynamic parameters of the aquifer and the evaluation of the complete water balance. The main results of this study provide a better understanding of the geometry and functioning of this aquifer currently in a state of concern. Furthermore, it is necessary to undertake integrated water resource management in this oasis in order to ensure sustainable development.
Autor przedstawia koncepcję człowieka w filozofii Ericha Fromma. Artykuł składa się z dwóch części. W pierwszej autor przypomina, jak Fromm charakteryzował sytuację egzystencjalną człowieka; druga wskazuje miłość jako główny czynnik działania i rozwoju bytu ludzkiego. Człowiek jest częścią natury, będąc poddany działaniu jej praw, ale też przerasta naturę dzięki umiejętności wykorzystania rozumu. Podmiot ludzki ma świadomość swych ograniczeń i słabości na tle reszty natury. Odczuwa zagubienie i samotność wobec innych ludzi i świata przyrody. Dlatego szuka układu orientacji i odniesienia. To poszukiwanie jest najważniejszym ludzkim problemem egzystencjalnym. Miłość jest rozwiązaniem problemu ludzkiego istnienia. Zdaniem Fromma, człowiek to podmiot miłości.