Grazing plays an important role in milk production most regions of the world. Despite importance grazing, current trends livestock farming Europe are causing a decline popularity pasture-based feeding dairy cows. This paper aims to provide overview challenges faced by pasture system under climate change. lands ecosystem services including regulation and storage water flows, nutrient cycling, C sequestration. Livestock grazing is factor shaping stabilizing biodiversity. Some opportunities for...

The aim of the study was to identify and compare content chlorophyll carotene pigments in mountain melick plants (Melica nutans L.) growing two forest habitats Zielonka Forest Landscape Park Greater Poland region, which differed soil properties moisture. Leaf blades from middle level Melica generative shoots were used as analytical material measure a, b, β-carotene total carotenoids. average (±SD) a less fertile site (Location I) amounted 6.67 ± 0.99 mg·g−1 DM. b same 2.44 0.39 more II) had...

Secondary nutrient (e.g., calcium, magnesium, sulfur) deficiencies in crop plants disturb the nitrogen balance plants, thus reducing overall yield. This hypothesis was analyzed based on physiological functions of these nutrients, relation to uptake and utilization N, plants. Nitrogen by requires a well-developed root system, size which depends supply calcium. process is largely controlled content toxic aluminum soil, can be mitigated through application lime and/or gypsum. In humid climates,...

Red clover is a raw material of interest primarily due to its isoflavone content. However, other groups compounds may affect the pleiotropic biological effects this material. It used alleviate menopausal symptoms, but fact that there are many varieties plant can be grown makes it necessary compare activity and phytochemical composition plant. Also differences between leaves flowers The aim study was evaluate properties six varieties—‘Tenia’, ‘Atlantis’, ‘Milena’, ‘Magellan’, ‘Lemmon’...

The four-year field trial was conducted at the Rolnicze Gospodarstwo Doświadczalne Brody (Brody Experimental Farm), Poznań University of Life Sciences, Poland. This study aimed to assess how different doses gypsum and potassium (K) fertilisers influenced nutritive value alfalfa-grass mixture. following two experimental factors were duplicated: fertilisation – levels (0 500 kg/ha) K four (0, 30, 60, 120 kg/ha). sward harvested three times full budding phase alfalfa. content components: crude...

Recently, an increasing interest in such fertilizers and fertilization methods which not only directly supply nutrients to plants, but also stimulate soil bioactivity is noted. Their effect on both microbiota forage plants has been fully recognized. The aim of the study was investigate combined plant mixture type mineral (NPK) with biostimulants based a marine algae extracts botanical composition, yield, structure selected taxonomic trophic groups microorganisms, enzymatic activity. During...

The study presents the results of two field studies (Experiment I, Experiment II), whose aim was to assess impact agriculture factors on maize green mass and leaf greenness index (Soil Plant Analysis Development, SPAD) in critical growth stages, as well determine relationship between SPAD yield for ensiling. It shown that thermal humidity conditions growing seasons determined value harvested silage. Row application mineral fertilizer (N, NP) selection “stay-green” varieties guarantee a...

Progressive climate changes are the most important challenges for modern agriculture. Permanent grassland represents around 70% of all agricultural land. In comparison with other agroecosystems, grasslands more sensitive to change. The aim this study was create deterministic models based on artificial neural networks identify highly significant factors influencing yield and digestibility sward in climatic conditions central Poland. were data from a experiment conducted between 2014 2016....

This study presents the results of 3-year field trials, whose purpose was to assess dynamics dry matter accumulation by maize depending on placement depth a two-component (NP) mineral fertilizer in soil layer, type nitrogen and date its application. Weather conditions, mainly thermal early growing season, had significant effect responses phosphorus starting dose profile. In initial stage development, temperature determined plant growth significantly higher extent than sum rainfall. The yield...

Between 2012 and 2015, a field experiment was conducted at the Brody Experimental Farm, Poznan University of Life Sciences, Poland. The following two experimental factors were used in duplicate: calcium sulfate (CaSO4) fertilization—two levels (0 500 kg ha−1); potassium (K) fertilization—four (0, 30, 60, 120 ha−1). soil pH (in H2O) enzyme activity (dehydrogenase, acid phosphatase, alkaline phosphatase) determined. fertilizer had significant influence only on dehydrogenase activity, which...

The study presents the results of a 3-year field trial aimed at assessing yield and quality raw material for ensiling in cultivation three maize varieties differing their agronomic genetic profile, conditioned by selection nitrogen fertilizer. Maize cultivar ES Metronom showed significant advantage over other cultivars when fertilized with UltraGrain stabile, or alternatively Super N-46. application nitrogen-stabilized fertilizers urea + N-Lock significantly increased green fodder ensiling....

The content of structural carbohydrates and lignin are important assessment criteria the feed value meadow plants. It is affected by many independent factors, including among others its development stage during harvest as well climatic conditions, especially amount rainfall. During years 2014–2016, plant samples were harvested at weekly intervals, respectively five times from late April to May. effect date on cellulose, hemicelluloses contents was evaluated. chemical composition plants...

Field experiments were carried out at the Department of Agronomy Poznań University Life Sciences to determine effect depth NP fertilization placement in maize cultivation on number plants after emergence. The adopted assumptions verified based a six-year field experiment involving four depths fertilizer application (A1—0 cm (broadcast), A2—5 (in rows), A3—10 A4—15 rows)). objective this study was assess depth, conjunction with year, (Zea mays L.) emergence using additive main effects and...

The objective of this research project was to determine the chemical composition sugar sorghum ( Sorghum saccharatum ) and suitability forage for ensiling, recommend an optimal cultivation technology in order obtain raw material production high quality silage. object used comparison a medium late cultivar Zea mays , Magister (FAO 270), characterised as “stay green” type, which is desirable if good silage be obtained under conditions prevailing Poland. experiment set up years 2004–2005 on...

It was assumed that the production of alfalfa in soils naturally poor available nutrients, such as potassium (K) and calcium (Ca), depends on use fertilizers. This hypothesis validated an experiment with alfalfa-grass mixture carried out 2012, 2013 2014 soil formed from loamy sand had a low content Ca K. The two-factor consisted two levels applied gypsum source (0, 500 kg ha-1) five PK fertilizers (absolute control, P60K0, P60K30, P60K60 P60K120). total yield sward determined by main seasons...

The productivity of fodder legumes, based on internal sources N, may be limited due to an insufficient supply nutrients responsible for the efficient use N accumulated by crop during growing season. Production risk occurs soils that are naturally poor or depleted in decisive fixation and utilization N2 alfalfa. This hypothesis was validated basis a field experiment with alfalfa–grass mixture carried out over three main seasons (2012−2014) soil low available potassium (K), calcium (Ca),...

Abstract The aim of the study was to compare influence selected soil bioconditioners and traditional fertilisation P+K+Ca on vitality yield Lolium perenne microbiological state soil. conducted between 2008 2009 – it based a field experiment started in 2006, Brody, at Agricultural Experiment Station Poznań University Life Sciences, Poland. factorial randomized block design, with three replications. Two experimental factors were used: - non-nitrogen (Physio-Mescal G18, PRP-SOL, Effective...

The study presents the results of a three year field trial aimed at assessing nutritional status maize in critical growth stages by means plant analysis cultivation cultivars differing their agronomic and genetic profile. main research problem was to demonstrate whether availability nitrogen from stabilized fertilizers for “stay-green” varieties is consistent with dynamics demand this component. This very important both economic aspect cultivation. showed significant response different...

Melica uniflora Retz., commonly known as wood melick, is a grass species that native to most of Europe. grows in hardwood forests near Fagus species, providing vital food and shelter for forest wildlife. The nutritional status melick not sufficiently recognized. study aims identify the intrapopulation variability plants collected from natural habitats Poland terms relation stage development course weather conditions. research was conducted two consecutive years: 2021 2022, area Ślęża Massif,...

Przedmiot niniejszych badań stanowi materiał hodowlany nowo zaaklimatyzowanego w Radzikowie perzu wydłużonego pochodzącego z Azji. Badania prowadzono latach 2009–2011, polowe dwóch doświadczeniach — jednym nad właściwościami biologicznymi i anatomicznymi (zwłaszcza pędów generatywnych), a drugim agrotechniką (głównie nawożenie sposoby siewu). Analizy chemiczne anatomiczne wykonane laboratorium Katedr (Katedra Nauk o Drewnie Katedra Łąkarstwa Krajobrazu Przyrodniczego) Uniwersytetu...

Predicting yield at an early growth stage allows one to optimize the amount and timing of nitrogen fertilization maximize crop yield. The aim study was determine how different doses would affect nutrition two maize varieties (Zea mays L.) with this element their yields, demonstrate potential using SPAD index as early-stage predictor dry matter (DMY) biomass. field experiment, pre- post-sown N fertilizer doses, conducted for years in Poland. two-factor experiment set up a randomized block...