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The field studies were carried out in 2002–2004 on brown soil of loess origin. In the experiment the following methods of plantation establishment were compared: direct sowing in the field (control); direct sowing in the field with cover of polypropylene sheet; by seedlings from plastic house; by seedlings produced in multicell propagation trays. There were two dates of leaf cutting: in August and before root harvest (October). Plants cultivated from seedlings were significantly higher and formed greater number of leaves as well as greater weight of above and under ground parts than in the cultivation from direct seeding, but the best results were obtained in the object with seedlings produced in multicell propagation trays. The use of polypropylene sheet positively affected the above ground parts of lovage, however caused significant decrease in root mass. Leaf cutting in the summer was connected with decrease in fresh root weight (by 40% in relation to plants with no leaf harvest) and essential oil content (from 0.85 to 0.52%). More active substances in lovage roots were accumulated in the plants obtained from direct seeding than from transplants.
Different methods of nettle cultivation were estimated in the experiment: vegetative prop­agation with runners planted in spring and generative propagation: autumn direct seed sowing in the field and transplant production in greenhouse (in multicell trays or plastic boxes) as well as nursery bed in the field. Seedlings were planted on 5 May. The plants were cultivated in spacing 45 x 15 cm, 45 x 25 cm and 45 x 35 cm. The best method of establishing nettle plantation was planting the seedlings produced in greenhouse: in mul­ticell trays and bare root transplants obtained in plastic boxes. The highest percentage of leaves in total yield of herb was observed in treatment with planting of seedling produced in multicell trays and with vegetative propagation by runners. Significant effect of spacing on total yield of herb and leaves was not observed.
The field experiment with one- and two-year-old marshmallow plants was carried out in Zamość on brown soil of loess origin in 2002-2004. There were four methods of plantation establishment: 1) direct sowing in the field (control object); 2) direct sowing in the field with cover of polypropylene sheet; 3) by seedlings from a plastic house; 4) by seedlings produced in multi-cell propagation trays. It was found that, in the case of one-year-old plants, all the methods of plantation establishment signifi cantly increased the yield and the number of marshmallow flowers, as compared to the control object, but the best results were obtained when the plants were propagated from seedlings produced in multi-cell trays. Taking into account the two-yearold plants, no signifi cant impact of the plantation establishment method on flower yield was found. On average, total yields of flowers varied from 17.2 dt x ha-1 in the first year of vegetation to 27.8 dt x ha-1 in the case of the two-year-old plants.
In a 4-year field experiment the effect of plantation establishment methods (direct sow­ing in the field - control; direct sowing in the field with cover of polypropylene sheet; by seedlings from plastic house; by seedlings produced in multi-cell propagation trays) on the growth and development of marshmallow plants as well as the mucilage content in roots in the first and second year of vegetation were compared. It was found that cultivation from seedlings in the first year of vegetation contributed to increase in growth and devel­opment rate of marshmallow plants. As a consequence, higher fresh weight of the above- ground parts and roots were obtained when plants were propagated from transplants than from direct sowing in the field. The greatest height and number of stalks as well as the highest plant weight were observed on the plots with seedlings produced in multiplates. In the case of biennial plants, the method of plantation establishment slightly modified the growth and development of marshmallow. The highest mucilage content was found in roots obtained from cultivation under polypropylene sheet.
Badania polowe przeprowadzono w latach 2000-2002 w Gospodarstwie Doświadczalnym Bezek koło Chełma na rędzinie mieszanej wytworzonej z opoki kredowej, o składzie granulometrycznym gliny średniej pylastej. W pracy określono wpływ zróżnicowanego poziomu nawożenia mineralnego oraz ochrony chemicznej roślin na skład gatunkowy i powietrznie suchą masę chwastów w łanie pszenicy ozimej odmiany Mikon wysiewanej po sobie. Uwzględniono 3 poziomy nawożenia oraz 4 poziomy ochrony roślin. Nawożenie mineralne pszenicy ozimej (w kg czystego składnika na hektar) przedstawiało się następująco: A₁ - N 80 (20+30+30); P 8,7; K 24,3; A₂ - N 120 (20+60+40); P 26,2; K 66,4; Mg 18,1; A₃ - N 160 (20+60+40+40); P 34,9; K 83,2; Mg 30,1. Poziomy ochrony chemicznej uwzględniały: B₁ - Chwastox Turbo 340 SL (2,5 dm³·ha⁻¹); w poziomach B₂, B₃ i B₄ wnoszono Sekator 6,25 WG (0,3 kg·ha⁻¹) i Pumę Universal 069 EW (1 dm³·ha⁻¹), a różniły się one poziomem ochrony fungicydowej. Stwierdzono, że liczba i powietrznie sucha masa chwastów przed zbiorem pszenicy ozimej była istotnie mniejsza na obiektach z użyciem Sekatora 6,25 WG i Pumy Universal 069 EW w porównaniu z poletkami, na których stosowano Chwastox Turbo 340 SL. W zachwaszczeniu dominowały Viola aivensis, Galium aparine, Fallopia convolvulus, Convolvulus arvensis, Elymus repens, i Apera spicaventi.
The study was carried out in 2006–2008 on medium heavy mixed rendzina soil. A two-factor field experiment was set up according to a randomized block design, in three replications. The aim of this research was to compare the effect of three herbicide doses and two foliar fertilizers on the yield components and some grain qualitative characteristics of winter triticosecale. The herbicides Mustang 306 SE and Attribut 70 WG were applied at full recommended doses and reduced to 75 and 50% doses. Foliar fertilizers Insol 3 and FoliCare 18 : 18 : 18 were applied twice a season at recommended doses. The control was not treated with herbicides and foliar fertilizers. It was found that grain yield and weight grain of one ear were significantly higher with full and reduced by 25% doses of the herbicides in comparison with control without herbicides. It indicates the possibility of reducing herbicide doses at least by 25% without risk of reduction of grain yield. The content of total protein in grain of winter triticosecale was higher in the object with foliar fertilization in comparition with control. The starch content in grain in the object with foliar fertilizer FoliCare 18 : 18 : 18 was higher than in the control object and Insol 3.
Doświadczenie przeprowadzono w latach 2006-2008 na średnio ciężkiej rędzinie mieszanej. Dwuczynnikowe doświadczenie przeprowadzono w układzie bloków losowanych w trzech powtórzeniach. W pracy porównano działanie trzech dawek herbicydów z zastosowaniem adiuwantu oraz bez jego użycia na plon i wybrane cechy struktury plonu ziarna pszenicy ozimej. Herbicydy Mustang 306 SE i Attribut 70 WG były stosowane w pełnych zalecanych dawkach, zredukowanych do 75% oraz 50%. Adiuwant Atpolan 80 EC (olej parafinowy 11-13) był stosowany w zalecanej dawce. Największy plon ziarna pszenicy ozimej ‘Turnia’ uzyskano w obiekcie z pełną zalecaną dawką herbicydów, jednak redukcja dawki o 25% i 50% nie zmniejszała istotnie plonu w porównaniu z dawką maksymalną. Wskazuje to na możliwość obniżenia dawek herbicydów bez ryzyka obniżenia plonu ziarna. Stwierdzono, że zastosowanie herbicydów wraz z adiuwantem Atpolan 80 EC wpłynęło na zwiększenie obsady kłosów i plonu ziarna pszenicy ozimej w porównaniu z obiektami z herbicydami bez adiuwantu.
The present study was carried out in the period 2007– 2009 in the Experimental Farm in Bezek near the city of Chełm. The aim of the investigation was to compare weed infestation of the husked (Krezus) and naked (Cacko) oat cultivars cultivated under conditions of different weed control treatments. The following weed control levels were compared: A – control object; B – harrowing twice; C – application of the herbicide Mustang 306 SE; D – herbicide Mustang 306 SE + foliar fertilizer Insol 3; E – herbicide Mustang 306 SE + two foliar fertilizers: Insol 3 and FoliCare 18:18:18. The husked oat cv. Krezus was more competitive against weeds. Number of dicotyledonous weeds and of monocotyledonous weeds, total weeds, and air-dry weight of above-ground parts of weeds in the crop of this cultivar were all significantly lower compared to the naked cv. Cacko. From the group of dicotyledonous species, Chenopodium album, Galinsoga parviflora, Matricaria maritima ssp. inodora, Polygonum aviculare, and Stellaria media were the dominant species in the crops of the oat varieties under investigation, whereas among the monocotyledonous species Echinochloa crus-galli, Setaria pumila, Apera spica-venti, and Elymus repens occurred in greatest numbers. The application of the herbicide Mustang 306 SE decreased the number of dicotyledonous weeds and air-dry weight of weeds, compared to the treatment in which mechanical weed control had been used.
W doświadczeniu polowym przeprowadzonym w latach 2006-2008 na średnio ciężkiej rędzinie mieszanej oceniano wpływ zróżnicowanych dawek herbicydów Mustang 306 SE i Attribut 70 WG oraz nawozów dolistnych Insol 3 i FoliCare 18:18:18 na plonowanie i strukturę plonu pszenicy ozimej Turnia. Herbicydy stosowano łącznie w pełnych zalecanych dawkach, zredukowanych do 75% oraz w dawkach zmniejszonych o połowę. Opryskiwanie nawozami dolistnymi wykonano dwukrotnie w okresie wegetacji. Obiekt kontrolny stanowiły poletka, na których nie stosowano zarówno herbicydów, jak i nawozów dolistnych. Największy plon ziarna otrzymano w obiekcie pielęgnowanym pełną zalecaną dawką herbicydów, jednak redukcja dawki do 75% i 50% nie zmniejszała istotnie plonu w porównaniu z dawką maksymalną. Wskazuje to na możliwość obniżenia dawek herbicydów bez ryzyka istotnego zmniejszenia plonu. Dolistne dokarmianie roślin nie miało istotnego wpływu na plonowanie pszenicy ozimej, chociaż obserwowano tendencję wzrostu plonu w porównaniu z obiektem kontrolnym bez nawożenia dolistnego.
The aim of the present study was to evaluate the effect of chemical crop protection on the content of N, P, K, Mg, Zn, Cu, Mn, and Fe in grain of 8 spelt wheat cultivars (Franckenkorn, Badengold, Schwabenspelz, Oberkulmer Rotkorn, Ostro, Ceralio, Schwabenkorn, and Spelt I.N.Z.). Chemical protection involved application of a fungicide, two herbicides and a retardant. No plant protection agents were used in the control treatment. The above spelt cultivars were grown in a monoculture on medium heavy mixed rendzina soil. The study was carried out in 2009-2011, at the Bezek Experimental Farm, which belongs to the University of Life Sciences in Lublin. Among the spelt wheat cultivars compared, grain of cv. Ostro was characterized by the highest content of nitrogen, phosphorus and manganese, whereas grain of cv. Franckenkorn contained the largest amounts of potassium and magnesium. The highest amount of zinc was found in grain of cv. Oberkulmer Rotkorn and that of copper – in grain of cv. Spelt I.N.Z., while grain of cv. Schwabenkorn was found to be the richest in iron. Irrespective of the cultivar, chemical plant protection significantly increased the copper content in spelt grain and simultaneously decreased the magnesium content. The content of N, Mg, Zn, Cu, and Mn in grain decreased in the successive years of the study.
A field experiment was conducted in the period 2006- 2008 on incomplete podzolic soil. The present study investigated the effect of different doses of the herbicides Mustang 306 SE and Attribut 70 WG as well as of the foliar fertilizers Insol 3 and FoliCare 18:18:18 on the biodiversity of weeds in a winter triticale crop, ‘Todan’. The segetal flora was assessed 6 weeks after the application of the herbicides and before the harvest of the triticale crop. The herbicides were applied together at labelled doses as well as at doses reduced to 75% and by half. Spraying with the foliar fertilizers was done twice during the growing period. Plots in which no herbicides or foliar fertilizers were used were the control treatment. Matricaria maritima and Viola arvensis from the dicotyledonous class were predominant in the winter triticale crop, whereas Apera spica-venti was the dominant species among the monocotyledons. The weed control efficacy of the reduced herbicide doses was weaker compared to the labelled rates by, respectively, from 6% to 9% at the first time of weed infestation assessment and from 4% to 8% at the second assessment time. Simultaneously, air-dry weight of weeds in the herbicide-treated plots did not differ significantly. This indicates that it is possible to reduce herbicide doses in a winter triticale crop without a risk of increased weed infestation.
The aim of the study was to estimate the influence of chemical plant protection including application of growth regulator Stabilan 750 SL (CCC), fungicide Alert 375 SC as well as herbicides Mustang 306 SE (florasulam; 2,4‐D) and Attribut 70 WG (sodium propoxycarbazone) on forming of LAI and MTA indexes of winter spelt wheat varieties (Frankenkorn, Badengold, Schwabenspeltz, Oberkulmer Rotkorn, Ostro, Ceralio, Schwabenkorn and Spelt I.N.Z.) in conditions of non‐ploughing and plough‐cultivation systems. The field experiment was conducted in 2009–2011 in Bezek near Chełm on rendzina soil. The leaf area index (LAI) and mean tip angle (MTA) were evaluated three times in the canopy of spelt wheat at shooting stage, heading and milky‐wax maturity by means of LAI‐ 2000 meter, firm LI‐COR (USA). The highest LAI index was shown by Schwabenkorn cultivar. At the same time this cultivar was characterized by more horizontal leaves position influencing on a relatively low value of MTA index. Chemical plant protection significantly decreased leaf area index of spelt wheat and increased the value of MTA index. Soil tillage system had diversified influence on examined traits.
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