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Quick and uniform emergence is one of the factors determining height and stability of the yield of cereals, especially of their spring forms. Thus, it is relevant to learn about the effect of fractionation of the seed material of spring wheat and spring rye. Over the years 2004-2009 two series of microplot experiments were conducted, whose aim was to determine and compare the effect of seed grain...
A field experiment was conducted in 2004-2004, at the Research Station in Tomaszkowo near Olsztyn, owned by the University of Warmia and Mazury. It was set up on proper grey podzolic soil, good rye complex. The purpose was to evaluate the biodiversity of segetal flora in a field cropped with the spring triticale cultivar Wanad. The evaluation was based on the species composition, density and weight...
The Natura 2000 network is a fundamental element of EU policy in the field of nature protection and the example of Europe’s enormous efforts to preserve biodeversity for future generations. Detailed principles of conduct in Natura 2000 areas are determined separately for each area and recorded in the plans for protection tasks. Planning effective action, and particularly identifying specific treatment...
The aim of the study was evaluation of the effect of dressing seed material of spring barley with a humus preparation and foliar potassium fertilization with Drakar on its yield and content of nitrogen, phosphorus, potassium and magnesium in the grain. One-way field experiment was carried out in the years 2006-2008, in Chrząstowo (53°09’ N; 17°35’ E) near Bydgoszcz, on soil classified as mesic Typic...
The aim of the work was to evaluate the allelopathic effect of water extracts from the above-ground parts of the seedlings of control buckwheat and buckwheat treated with methyl jasmonate vapours (JA-Me), as well as extracts enriched with 2-phenylethylamine (PEA) and its metabolites: phenylacetic acid (PAA) and 2-phenylethanol (PE), on the growth of the seedlings of dicotyledonous (tomato, radish...
Increasing scope of the potential use of goat’s rue (Galega orientalis Lam.) causes a growing interest in this plant also in research. Due to the structure of the seed coat of goat’s rue, the seeds undergo scarification before sowing, which puts them at risk of pathogen infection. One of the more effective methods of disease prevention at the early developmental stages of plants is the application...
Plantago lanceolata is one of the most common and most valuable dicotyledonous pasture herbs found on meadows and pastures. The aim of this study was to compare the impact of Plantago lanceolata on yields and quality of twice harvested semi-natural meadow swards utilized according to agri-environment programme guidelines (P10b variant), as well as on pastures established using mixtures containing...
The area under sweet corn is increasing in Poland due to increased consumption and suitability for cultivation in all regions of the country. However, sweet corn is sown on different dates in these regions. A field experiment was carried out in the years 2006-2008 at the Experimental Station in Zawady (52º03’ N; 22º33’ E). It was conducted to examine the effect of three sowing dates (26th April, 10th...
The field experiment on agricultural practices in winter wheat in short-term monoculture was carried out over the years 2011/2012 and 2012/2013 in Chełmce (52°61’N; 18°44’E). The experimental factors included: A – tillage systems (variants with post-harvest tillage with a grubber or without and with the use of manure and sow ploughing and single ploughing, as well as direct sowing), B – method of...
The residual effect of presowing soaking seeds in solutions of commercial preparations containing GA₃ and IAA on the growth, development and yield of amaranth of the cultivar Rawa (Amaranthus cruentus L.) was assessed over 2010-2012. It was found that plants grown from treated seeds showed much more abundant growth than the control plants. This activity will be continued also in later developmental...
Carex nigra Reichard is a relatively constant species typical of damp and inundated habitats. One of the species that gain the highest cover in meadow communities with common sedge is Ostericum palustre Besser. This work presented comparison of communities with predomination of C.nigra or O. palustre in phytocenotic and yieldforming aspects. In floristic terms, Pratocenoses with C. nigra or O. palustre...
The effect of some methods for the presowing improvement of seeds of amaranth of the cultivar Rawa (Amaranthus cruentus L.) on their sowing value was assessed in laboratory conditions. The results of seed soaking in solutions of commercial preparations were examined, where the active substance was synthetic growth regulators – auxin and giberelin. The experiments were conducted in 2010-2012 at the...
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