Wyniki wyszukiwania - Biblioteka Nauki

1

The impact of dry mass content in pig liquid manure on its treatment with a filtration method

100%

Kowalski Z. , Makara A. , Marszałek M. , Hoffmann J. , Hoffmann K.

Polish Journal of Chemical Technology

|

2014

|

tom Vol. 16, nr 3

106--110

EN

The present study examines the impacts of dry mass content in pig liquid manure on its treatment with a filtration method. Samples of liquid manure with variable dry mass content were subjected to treatment using phosphoric acid, sulfuric acid, lime milk and superphosphate, as well as to thermal treatment, while in the last phase of pressure filtration. Increased dilution of the manure resulted in a reduced raw materials consumption ratio and improved filtration process efficiency, which ranged from 408 to 3765 kg/m2/h. The highest filtration efficiency was achieved using manure containing 3% dry mass, while the lowest efficiency was observed in manure at 10% dry mass. The increase in liquid manure dilution also reduced chemical oxygen demand in the filtrate, which ranged from 15 062 to 3656 mg/l. An appropriate manure dilution level, under the constant parameters of the treatment process, reduced phosphorus content in the filtrate to < 10 mg/kg Chile simultaneously enriching the post-filtration sediment with this precious fertilizing component.

2

The Impact of Dry Mass Content in Pig Liquid Manure on its Treatment with a Filtration Method

100%

Kowalski Z. , Makara A. , Marszałek M. , Hoffmann J. , Hoffmann K.

|

nr 3

106-110

EN

The present study examines the impacts of dry mass content in pig liquid manure on its treatment with a filtration method. Samples of liquid manure with variable dry mass content were subjected to treatment using phosphoric acid, sulfuric acid, lime milk and superphosphate, as well as to thermal treatment, while in the last phase of pressure filtration. Increased dilution of the manure resulted in a reduced raw materials consumption ratio and improved filtration process efficiency, which ranged from 408 to 3765 kg/m2/h. The highest filtration efficiency was achieved using manure containing 3% dry mass, while the lowest efficiency was observed in manure at 10% dry mass. The increase in liquid manure dilution also reduced chemical oxygen demand in the filtrate, which ranged from 15 062 to 3656 mg/l. An appropriate manure dilution level, under the constant parameters of the treatment process, reduced phosphorus content in the filtrate to < 10 mg/kg while simultaneously enriching the post-filtration sediment with this precious fertilizing component.

3

Analysis of Selected Technical and Technological Parameters of the Sewage Sludge Stability Process

75%

Bartkowska I. , Wawrentowicz D.

Journal of Ecological Engineering

|

2018

|

tom Vol. 19, nr 4

69--74

EN

The article presents the results of the analysis, which was carried out in 2015-2017 on the example of autothermal installation of thermophilic sludge stabilization (ATAD) in a sewage treatment plant in Giżycko. The installation was created in 2003 as the first of its kind and still remains operational. The purpose of the conducted research was to assess the suitability of the analyzed technological parameters as tools that can be used by operators to determine the actual possibilities of changing the operating conditions of the installation or to develop an optimization strategy to reduce the energy demand. The dry mass content and organic dry mass content was used as the assessment indicators. In the analysed period, the sludge from the process contained from 47.47% to 60.80% of organic matter in the dry mass of the sludge. The organic dry matter decrease due to the process was also calculated, and it ranged from 26.4% to 48.7%. The amount of sludge undergoing the process and the amount of electricity consumption were also analysed. On this basis, the energy consumption indicators in the ATAD process were calculated.

4

Effect of the method and term of foliar nutrition with urea solution and a multiple fertilizer on nitrogen and dry mass content maize

75%

Kruczek A.

Acta Agrophysica

|

2003

|

tom 85

5

Alfalfa and red clover forage yield after rizobin application

75%

Shejbal B. , Santrucek J. , Zajac T.

Zeszyty Naukowe Akademii Rolniczej w Krakowie. Sesja Naukowa

|

2001

|

tom 76

|

nr 1

6

Ksztaltowanie sie suchej masy pszenzyta jarego uprawianego w plodozmianach i monokulturze

63%

Wozniak A.

|

nr 212

103-107

7

Przydatność kukurydzy odmiany Magitop jako substratu do produkcji biogazu na podstawie badań wstępnych

63%

Sałagan P. , Dobek T. K. , Wieliczko P.

Inżynieria Rolnicza

|

2012

|

tom R. 16, nr 4, t. 1

359-368

PL

W artykule przedstawiono charakterystykę kukurydzy odmiany Magitop według danych producenta oraz innych autorów. Ponadto przedstawiono wyniki wstępnych badań kiszonki z kukurydzy tej odmiany jako substratu do biogazowni. Materiałem wykorzystanym do badań były kiszonki z kukurydzy odmiany Magitop o czterech zróżnicowanych przedziałach długości sieczki: do 1 cm, >1 do 3 cm, >3 do 5 cm i >5 do 8 cm. Dokonano oceny organoleptycznej (sensorycznej) wyprodukowanych kiszonek zgodnie z normą branżową. Następnie poddano ocenie zawartość suchej masy w zakiszanym surowcu według polskiej normy. Analiza wykazała różną zawartość suchej masy, w zależności od długości sieczki: od 23 do 30%. Wyniki wstępnych badań kiszonki wyprodukowanej z kukurydzy odmiany Magitop potwierdzają zasadność podjęcia dalszych badań nad biogazodochodowością tego surowca, jako odmiany przeznaczonej do produkcji biogazu.

EN

The article presents description of Magitop corn according to the producer's data and other authors. Moreover, results of the initial research of maize silage of this variety as a substrate for biogas works was presented. The material used for research was maize silage of Magitop variety of four varied ranges of chaff length: up to 1 cm, >1 up to 3 cm, >3 up to 5 cm and >5 up to 8 cm. Organoleptic assessment (sensory) of the produced silage was carried out according to the trade standard. Then, a content of dry mass in ensiled raw material was assessed according to the Polish standard. The analysis proved varied content of dry mass in relation to the length of chaff: from 23 to 30%. The results of the initial research of the produced maize of Magitop variety confirm that further research on biogas profitability of this raw material, as a variety intended for biogas production is necessary.

8

Variation and correlations of leaf traits of two Taxus species with different shade tolerance along the light gradient

63%

Liu W. , Li S. , Su L. , Su J.

|

tom 61

|

nr 2

EN

The variations in leaf traits of Taxus species in different light conditions are still poorly understood. We sampled leaves of Taxus yunnanensis W. C. Chang L. K. Fu and Taxus chinensis var. mairei (Lemée and Lév.) W. C. Cheng and L. K. Fu along an illumination gradient (full daylight, 40–60% full daylight, <10% full daylight), and analyzed how seven leaf traits and their correlations changed under different light conditions. The leaf trait that showed the greatest variation was specific leaf area (SLA) for T. yunnanensis, followed by leaf dry mass (LM) for both taxa. The smallest variation was in leaf width (LW) for both taxa. Plasticities of all leaf traits in both taxa were higher than 50%, and those of leaf area (LA), LM and SLA were greater than 80%. The light gradient was positively correlated with leaf length (LL), LM, leaf dry matter content (LDMC), and leaf length to width ratio (LWR). LW and SLA were negatively correlated with the light gradient. Analyses of relationships among leaf traits showed that LM of T. yunnanensis, T. chinensis var. mairei and both taxa was positively correlated with LL, LW, LA, LDMC, and LWR, and negatively correlated with SLA under all light conditions. We concluded that leaf traits and their relationships were affected by light conditions.

9

Physical properties of Jatropha curcas seed

63%

Salawu A. T. , Suleiman M. L. , Isiaka M.

|

nr 4

10

Prolongirovannye ehffekty opticheskogo izluchenija krasnogo diapazona v period prorastanija semjan

63%

Pankova O. , Fesenko A. , Bezpalko V. , Lisichenko N. , Golovan L. , Romanova T.

|

tom 17

|

nr 7

11

Effects of biostimulator and leaf fertilizers on Prunus mahaleb L. stockplants and their cuttings

63%

Szabo V. , Nemeth Z. , Sarvari A. , Vegvari G. , Hrotko K.

Acta Scientiarum Polonorum. Hortorum Cultus

|

2014

|

tom 13

|

nr 6

EN

The effect of Kelpak® biostimulator, Wuxal® Ascofol and Pentakeep®-V leaf fertilizers were tested on Prunus mahaleb L. ‘Bogdány’ stockplants. Shoot production and characteristics, rooting and quality of their cuttings were evaluated. Biostimulator and fertilizers were sprayed four times on leaves before cuttings were taken. The number and fresh masses of the shoots, cutting weights, leaf chlorophyll indexes (SPAD) and indole3-acetic-acid (IAA) levels in shoot tip were measured on stockplants. Rooting rates, IAA--levels in the rooting zone of cuttings, fresh and dry masses of rooted cuttings, both weights of the root and shoot were measured. Based on these results Kelpak® pretreatment could be considered as the most effective in improving the productivity of Prunus mahaleb L. stockplants, leaf chlorophyll indexes and IAA-level in shoot tip of stockplant and in cutting base. The stockplant pretreatment by Kelpak® increased both the single shoot mass and consequently the fresh mass of prepared cuttings. While these pretreatments alone did not affect the rooting rate, the pretreatment of shoots by Kelpak® and Pentakeep®-V increased the dry mass production of cuttings during rooting. Kelpak® pretreatment affected the root dry mass positively, while Pentakeep®-V increased the shoot dry mass of rooted cuttings.

PL

Przetestowano wpływ biostymulatora Kelpak® oraz nawozów dolistnych Wuxal® Ascofol and Pentakeep®-V na rośliny mateczne Prunus mahaleb L. ‘Bogdány’. Oceniono tworzenie i cechy pędów, zakorzenienie oraz jakość sadzonek. Przed pobraniem sadzonek czterokrotnie opryskano liście bio-stymulatorem i nawozami. Na roślinach matecznych określono liczbę oraz świeżą masę pędów, masę sadzonek, wskaźniki chlorofilu w liściach (SPAD) oraz poziom kwasu indolilooctowego (IAA) na wierzchołku pędu. Zmierzono wskaźnik zakorzenienia, poziom IAA w strefie korzeniowej sadzonek, świeżą i suchą masę zakorzenionych sadzonek, a także obie masy korzeni oraz pędów. Na podstawie wyników badań wnioskuje się, że wstępny zabieg Kelpakiem® można uważać za najskuteczniejszy w polepszaniu wydajności roślin matecznych Prunus mahaleb L., wskaźników chlorofilowych oraz poziomu IAA w wierzchołkach pędów roślin matecznych oraz w podstawie sadzonek. Wstępny zabieg Kelpakiem® zwiększał masę pojedynczych pędów, a w konsekwencji – świeżą masę przygotowanych sadzonek. O ile wstępne zabiegi same w sobie nie wpływały na wskaźnik zakorzenienia, to wstępny zabieg Kelpakiem® i Pentakeepiem®-V na pędach zwiększył tworzenie suchej masy sadzonek podczas zakorzeniania. Wstępny zabieg Kelpakiem® miał pozytywny wpływ na suchą masę korzenia natomiast Pentakeep®-V zwiększał suchą masę pędów zakorzenionych sadzonek.

12

GA3 level and metabolical state in apical part of male and female thalli of Chara tomentosa

63%

Rosiak M. , Kazmierczak A.

|

nr 1

13

Variability of Quercus robur L. and Quercus petraea (Matt.) Liebl. acorn size in the region of the Pomeranian plains

63%

Major S.

|

2002

|

tom 47 Supplement

EN

The results of measurements of 5780 acorns confirm that Quercus robur has acorns of langer size, as componed with acorns of Quercus petraea. Their length varied from 1.90 to 3.50 cm, with the average 2.71 cm, while in case of Q. petraea this characteristic varied from 1.60 to 3.50 cm, with the average 2.43 cm. The diameter of acorns was similar for both species. Dry mass of Q. robur acorns ranged from 1.054 to 4.937 g, on average 2.5924 g; in the case of Q. petraea it ranged from 0.835 to 4.796g, on average 1.8364 g. Taking into consideration the coefficient of variability of length and diameter, both species do not differ significantly. It ranged from 9 to 12%. In the case of dry mass the difference was larger and it was 23% and 28% for Q. robur and Q. petraea, respectively. The analysis of variance (F-test) showed, that the species taken as the source of variability influences significantly the length of acorns (in 17%) and dry mass (in 47%). Internal features determine these characteristics in 52% and 46%. F-test did not detect any dependence between oak species and the diameter of acorns.

14

Evaluation of microwave radiation method for sample preparation of pine needles and wood for carbohydrate analysis

63%

Kloseiko J.

Acta Physiologiae Plantarum

|

2006

|

tom 28

|

nr 6

EN

The aim of the current study was to test the suitability ofmicro- wave heating for stopping carbohydrate transformations in plant material. Needles and branches of Pinus sylvestris were treated in microwave oven (2.45 GHz, 800W) and compared to the samples treated in boiling ethanol (96 %). In extracts obtained from the microwaved material the ratio of sucrose to hexoses (glucose and fructose) decreased, while ethanol treatment resulted in stable extracts. The carbohydrate composition in dry samples estimated after a month of storage was persistent. The boiling of needles in ethanol in microwave oven gave the same results as the boiling on a heating plate. In the woody material, differently from the needles, the total concentration of measured carbohydrates depended significantly on the preparation method. In the case of needles, the treatment of plant material in ethanol was better suited for the determination of carbohydrate levels than the microwave treatment.

15

Dynamika gromadzenia świeżej i suchej masy oraz azotu przez rośliny tradycyjnej i samokończącej odmiany łubinu żółtego (Lupinus luteus L.)

51%

Prusinski J.

Acta Scientiarum Polonorum. Agricultura

|

2005

|

tom 04

|

nr 2

57-72

PL

W latach 2002-2004 przeprowadzono ścisłe dwuczynnikowe doświadczenie polowe z dwiema odmianami łubinu żółtego, które zbierano sześciokrotnie w fazach: 8-10 liści, początku pąkowania i kwitnienia, płaskiego strąka oraz dojrzałości fizjologicznej i pełnej nasion w celu określenia dynamiki gromadzenia świeżej i suchej masy oraz azotu w wegetatywnych i generatywnych częściach roślin. Istotnie najwyższe plony zielonki obu badanych odmian uzyskano w fazie płaskiego strąka, a suchej masy – w fazie dojrzałości fizjologicznej nasion. Tradycyjna odmiana Polo charakteryzowała się istotnie wyższą maksymalną produkcyjnością od samokończącej odmiany Legat, która ze względu na szybsze tempo wzrostu od wschodów do początku pąkowania oraz większą dynamikę gromadzenia świeżej i suchej masy, a także N może być bardziej przydatna do użytkowania w międzyplonach ścierniskowych. Maksimum zawartości N w liściach stwierdzono od pąkowania do kwitnienia, a w łodygach na początku pąkowania. W plonie ogólnym suchej masy w dniu zbioru nasiona odmiany Polo stanowiły tylko 39%, a odmiany Legat 42% plonu całkowitej biomasy.

EN

A strict field experiment was carried out in 2002-2004 with two yellow lupin cultivars, which were harvested 6 times at the 8-10 leaf phase, at the beginning of budding and flowering, at flat pod, at physiological and full seed maturity, to evaluate the dynamics of fresh weight, dry matter as well as N accumulation in vegetative and generative parts of plants. The significantly highest fresh weight yields in both cultivars were obtained at the flat pod phase, while dry matter yields – at the physiological seed maturity. The maximum productivity of conventional ‘Polo’ cultivar was higher than that of self-completing ‘Legat’ which, due to a faster growth rate from the beginning of emergence to budding and higher dynamics of fresh weight and dry matter as well as N accumulation, can be more useful as an intercrop. The maximum N content in leaves was observed over budding and flowering phases, while in stems – at the beginning of budding. On the day of harvest the share of ‘Polo’ seeds in the total dry matter amounted to 39%, whereas of ‘Legat’ seeds – to 42%.

16

Badania na zgodność z recepturą dań pierwszych przygotowywanych w zakładach żywienia zbiorowego

51%

Bromirski A. , Masiakowa W. , Bojar K.

|

1956

|

tom 07

|

nr 4

17

Zawartość suchej masy i makroelementów w nawozach naturalnych z regionu Lubelszczyzny

51%

Bednarek W. , Tkaczyk P. , Dresler S.

|

nr 1[181]

PL

W badaniach środowiskowych przeprowadzonych na Lubelszczyźnie w latach 2007- 2008 oceniano zawartość suchej masy i makroelementów w nawozach naturalnych – oborniku, pomiocie ptasim, gnojowicy i gnojówce. Stwierdzono, że zawartość suchej masy w ocenianych nawozach zależała od rodzaju nawozu i wynosiła średnio w: oborniku – 46.1, pomiocie ptasim – 50,9 i gnojowicy – 3,6%. Średnia zawartość azotu (N) w świeżym oborniku wynosiła – 1,03, w pomiocie ptasim – 1,40, w gnojowicy – 0,45, w gnojówce – 0,42% świeżej masy; średnia zawartość fosforu (P) w oborniku wynosiła – 0,35, w pomiocie ptasim – 0,51, w gnojowicy – 0,09, w gnojówce – 0,03% świeżej masy; średnia zawartość potasu (K) w oborniku wynosiła – 1,00, w pomiocie ptasim – 0,96, w gnojowicy – 0,24; w gnojówce – 0,38% świeżej masy. Średnia zawartość wapnia (Ca) w oborniku wynosiła – 0,51, w pomiocie ptasim – 0,70, w gnojowicy – 0,11, w gnojówce – 0,03% świeżej masy; średnia zawartość magnezu (Mg) w oborniku wynosiła – 0,19, w pomiocie ptasim – 0,26, w gnojowicy – 0,20 i w gnojówce – 0,007% świeżej masy. Spośród oznaczanych makroelementów, w oborniku w największym stopniu od zawartości suchej masy zależała zawartość azotu i potasu. a w pomiocie ptasim – fosforu.

EN

Contents of dry matter and macroelements in natural fertilizers – manure, poultry dung, dungstead, and liquid manure – were assessed in a study in the Lublin region in 2007-2008. Content of dry matter in the fertilizers was strongly related to the kind of fertilizer and amounted to, on average, 46.1 in manure, 50.9 in poultry dung, and 3.6% in liquid manure. Average content of nitrogen (N) in fresh manure was 1.03, 1.40 in poultry dung, 0.45 in liquid manure, and 0.42% of fresh matter in dungstead. Average content of phosphorus (P) in fresh manure was 0.35, 0.51 in poultry dung, 0.09 in liquid manure, and 0.03% of fresh matter in dungstead. Average content of potassium (K) in fresh manure was 1.00, 0.96 in poultry dung, 0.24 in liquid manure, and 0.38% of fresh matter in dungstead. Average content of calcium (Ca) in fresh manure was 0.51, 0.70 in poultry dung, 0.11 in liquid manure, and 0.03% of fresh matter in dungstead. Average content of magnesium (Mg) in fresh manure was 0.19, 0.26 in poultry dung, 0.20 in, liquid manure and 0.007% of fresh matter in dungstead. Out of all the macroelements studied, contents of nitrogen and potassium depended the most on the content of dry matter in manure, and on the content of phophorus in poultry dung.

18

Fizykochemiczna ocena mięsa świń ras duroc i wbp

51%

Michalski Z. , Ceglarska D. , Kamyczek M.

Zeszyty Problemowe Postępów Nauk Rolniczych

|

1990

|

tom 384

RU

Соответствующие исследования проводились в опытной станции Павловиче на образцах мяса отобранных после убоя из длиннейшей мышцы спины 50 свинок крупной белой польской породы и 50 свинок породы дюрок. Были определены 12 показателей качества мяса. Мясо свиней породы дюрок характеризовалось существенно высшим значением рН₁, было несколько светлее с более постоянной окраской и с меньшим содержанием растворимого белка. В зимическом составе мяса свиней породы дюрок установлено больше сухого вещества в жира, а меньше белка (высокосущественные разницы в сравнении с крупной белой польской породой. Были подувены высшие коэффициенты корреляции между показателями качества мяса у свиней крупной белой польской породы, а более низкие у породы дюрок.

EN

The respective investigations were carried out at the Experiment Station Pawłowice on meat samples taken after slaughter from the longissimus dorsi muscle in gilts of the Polish Large White and 50 of the Duroc breed. Twelve meat quality indices have been assumed. The meat of the Duroc breed was characterized by a significantly higher pH₁, slightly higher lightness and stability of colour and lower content of soluble protein. In the chemical composition of the Duroc breed meat higher dry matter and fat and lower protein content (highly significant differences) were found as compared to the Polish Large White breed. Higher coefficients of correlation between the meat quality indices in the Polish Large White Breed and lower ohes in the Duroc breed.

19

Dynamics of Helichrysum arenarium (L.) Moench populations growing in fallow field on barren soil

51%

Sawilska A. K.

Ecological Questions

|

2008

|

tom 09

20

Zależność pomiędzy zawartością suchej masy i skrobi a wielkością wskaźników mechanicznych uszkodzeń bulw ziemniaka

51%

Krzysztofik B. , Baran D. , Sobol Z.

Inżynieria Rolnicza

|

2005

|

tom R. 9, nr 7

31--40

PL

Przeprowadzone badania miały na celu znalezienie zależności pomiędzy zawartością suchej masy i skrobi, a udziałem wielkości uszkodzeń, w całkowitym wskaźniku mechanicznych uszkodzeń bulw ziemniaka. Badaniami objęto: dwie odmiany ziemniaka, które uprawiano na dwóch różnych glebach, przez trzy kolejne lata. Do nawożenia stosowano cztery różne nawozy. Badane parametry jakościowe bulw ziemniaka w istotnym stopniu zależały od czynników doświadczenia. Zaproponowane w pracy empiryczne modele regresyjne dotyczące związku pomiędzy wskaźnikami mechanicznych uszkodzeń a zawartością suchej masy i skrobi wyjaśniają w stopniu zadawalającym tę zależność (R2 = 78% i R2 = 76%)

EN

The survey carried out was aimed at identifying the dependence between the dry mass and starch content and the share of damage size in the entire potato bulb mechanical damage index. The survey covered: two potato species, which were grown in various types of soil for three following years Four various fertilizers were used. Surveyed quality parameters of potato bulbs were considerably affected by the experiment factors. Three regressive empiric models proposed in the paper, regarding the relationship between mechanical damage indices and starch and dry mass content, provide satisfactory explanation for that dependency (R2 = 78% i R2 = 76%)