Wyniki wyszukiwania - AGRO

1

Biologicke moznosti zurodnenia pod ochrozenych ekonomickymi aktivitami priemyslu

100%

Hronec O.

Zeszyty Naukowe Akademii Rolniczej w Krakowie. Sesja Naukowa

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2001

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tom 76

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nr 1

2

Die Bedeutung der Dungung und Bodenuntersuchung in der Bewahrung der Bodenfruchtbarkeit

88%

Loch J.

Nawozy i Nawożenie

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2000

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tom 02

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nr 3b

3

Preliminary investigation for forecasting the content of polycyclic aromatic hydrocarbons after soil fertilization with sewage sludge

88%

Oleszczuk P., Baran S.

Polish Journal of Environmental Studies

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2004

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tom 13

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nr 3

In addition to the positive effects on the physical, chemical and biological soil properties of the application of sewage sludge into the soil, there is often an increase of both organic and inorganic pollutants in the soil. One of the most popular organic xenobiotics frequently present in sewage sludge are polycyclic aromatic hydrocarbons. The aim of this study is to determine possibilities for forecasting the content of individual PAHs in the soil on the basis of their content in sewage sludge. Two types of sewage sludge with different PAH contents, both in terms of quantity and quality, were examined. The different types of sludge were introduced into the soil in the following doses: 30, 75, 150, 300 and 600 t/ha. The results obtained showed a clear differentiation in the behaviour of individual PAHs in relation to the dose applied and the type of sewage sludge.

4

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Preliminary evaluation of the influence of soil fertilization and foliar nutrition with iodine on the efficiency of iodine biofortification and chemical composition of lettuce

75%

Smolen S., Rozek R., Ledwozyw-Smolen I., Strzetelski P.

Journal of Elementology

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2011

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tom 16

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nr 4

According to the World Health Organization, consumption of table salt (being a major carrier of iodine in human diet) should be reduced of 50%. Vegetables biofortified with iodine can become an alternative source of this element for humans. Agronomic recommendations with reference to biofortification have to be developed, including the evaluation of side-effects associated with iodine application to plants. Iodine is not an essential element for plants and hence its effect on crops has not yet been diagnosed. The aim of the study has been to assess the influence of soil fertilization with KI and foliar application of KIO3 on the success of iodine biofortification as well as the mineral composition of lettuce. Lettuce cv. Melodion F1 was cultivated in a field experiment in 2008-2009. Combinations with different soil fertilization and foliar nutrition with iodine were distinguished in the research including: control (without iodine application), three combinations with presowing soil fertilization of iodine (in the form of KI) in doses of 0.5, 1.0 and 2.0 kg I ha–1 as well three combinations with four applications of foliar nutrition with iodine solution (as KIO3) in the concentration of: 0.0005%, 0.005% and 0.05% after using 1000 dm3 of working solution per 1 ha so that the following amounts of iodine were applied: 0.02, 0.2 and 2.0 kg I ha–1, respectively. In lettuce heads, the iodine content as well as the content of: P, K, Mg, Ca, S, Na, B, Cu, Fe, Mn, Zn, Mo, Al, Cd and Pb were determined using the ICP-OES technique, while N-total was assayed by Kjeldahl method. In comparison to the control, only foliar nutrition with 0.05% solution of iodine significantly improved accumulation of this element in lettuce. At the same time, a lower level of nitrogen nutrition was observed in plants from this combination. A significant increase in the N-total content was found only in lettuce plants fed with 2.0 kg I ha–1 dose of KI. In reference to the control, both foliar and soil application of iodine contributed to a higher content of K, Mg, Ca, Mn and Cd as well as a decreased level of P, Cu and Zn in lettuce. Doses, forms and application methods of iodine were found to have produced diverse effects on the content of S, Na, B, Fe, Mo, Al and Pb in lettuce plants.

5

Effect of slurry fertilization on the selenium content and catalase activity in lessive soil

75%

Borowska K., Koper J., Kozik K., Rutkowska A.

Journal of Elementology

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2014

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tom 19

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nr 3

The aim of the present research was to determine the total selenium content in soil and plants from a microplot experiment with different nitrogen fertilization regimes, and to identify the relationships of the selenium content in soil and plants versus the soil catalase activity. The experiment was conducted in randomized blocks with three replications. The soil and plant samples were collected from a microplot experiment established at the IUNG in Pulawy. The soil was enriched with mineral nitrogen and with nitrogen supplied in slurry, both applied at doses of 100 kg N ha-1. The total selenium content in soil under each of the crop rotation systems was no more than 0.2 mg kg-1. Data from the references imply that the soil was deficient in selenium. The highest amount of selenium was under winter wheat and spring barley with undersown crop in crop rotation A, and in soil under maize crop rotation B. Slurry fertilization significantly stimulated the activity of catalase in soil, as compared with the control and mineral nitrogen fertilization treatments. The highest catalase activity – nearly double the control – was detected in soil under winter wheat in crop rotation A and under spring barley in crop rotation B; winter wheat, regardless of the type of crop rotation, accumulated on average 0.3 mg Se kg-1 d.w. in aerial parts and 0.344 mg Se kg-1 d.w. in roots. The highest amounts of selenium in the investigated parts of plants were reported in the control plots and in the plots with slurry fertilization. Mineral fertilization reduced selenium availability to plants. In both crop rotation systems, the highest bioaccumulation of selenium was noted in winter wheat roots from control plots, while the lowest one was detectetd in aerial parts of plants from the plots with slurry fertilization. Despite the fertilization applied, the selenium content in plant roots was higher than its content in aerial parts. The correlation analysis of the results on selenium concentration in soil and plants as well as the catalase activity of soil identified only a significant dependence between the total selenium content and catalase activity in soil from crop rotation B.

6

The effect of slurry manuring on properties of humic compounds from sandy soil

75%

Straczynska S.

Polish Journal of Soil Science

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1998

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tom 31

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nr 2

7

Nowoczesne uzyznianie gleby

75%

Sowinski W.

Biuletyn Informacyjno-Handlowy. Ośrodek Doradztwa Rolniczego Boguchwała

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2003

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nr 10

18

8

The implementation of recommendations and restrictions for using nitrogen fertilizers in Estonia

75%

Loide V., Koster T., Penu P., Rebane J.

Nawozy i Nawożenie

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2009

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nr 37

9

Properties of humic acids of light soil fertilized with sewage sludge

75%

Zukowska G., Flis-Bujak M.

Polish Journal of Soil Science

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2002

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tom 35

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nr 2

10

Leaching of individual PAHs in soil varies with the amounts of sewage sludge applied and total organic carbon content

75%

Oleszczuk P., Baran S.

Polish Journal of Environmental Studies

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2005

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tom 14

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nr 4

The aim of the work was the evaluation of the ability of individual PAHs from the US EPA list to migrate in relation to the sludge dose applied. On the basis of statistical analysis, an attempt was undertaken to evaluate the role of organic matter (total content of organic carbon) in the transportation of individual PAHs. Different doses of sewage sludge were introduced into the soil starting with a fertilizing dose (30 t·ha⁻¹), through melioration doses (75, 150, 300 t·ha⁻¹) to extreme doses (600 t·ha⁻¹). A few days after the application of sewage sludge, the increase of PAHs was noted in the 20-40 cm soil horizon. The range of increase depended on the sewage sludge dose applied. The highest increase in PAH content was observed in soil with a sludge dose of 300 t·ha⁻¹. However, after an 18-month period of study, the relationships observed before changed and the highest increase of individual PAHs in the 20-40 cm soil horizon relative to the control was noted in the case of the highest sludge dose.

11

Dependence between enzymatic activity and the type of soil fertilization for maize cultivation in a monoculture

63%

Wolna-Maruwka A.

Polish Journal of Soil Science

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2008

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tom 41

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nr 1

61-72

In the presented studies, an attempt has been made to utilise enzymatic indicators for the estimation of soil environment reaction to the applied differentiation of organic fertilizers and maize (Zea maysL.) cultivation.The two-year experiment was held on a field. In different development stages of maize, the activities of protease, dehydrogenase and acid phosphatase were determined in the soil. The activity level of the selected enzymes was defined using the spectrometrical method. The results obtained from the studies, show that applied organic fertilization, as well as the cultivation of soil had only a minor effect on the activity of the analysed soil enzymes. In case of dehydrogenases, it was found that their activity in the time of the experiment was the highest after the manure incorporation into the soil. In case of phosphatase, its highest activity was recorded in the soil fertilized with sewage sludge (5 t d.m. ha⁻¹ year⁻²).

12

Vergleich von mikrobiologischen Bodenuntersuchungen mit herkomlichen Geraten, einem neu entwickelten Bodenprobennehmer und einem Grubenversuch

63%

Philipp W., Ruprich A., Buck S., Weigel T.

Prace Wydziału Nauk Przyrodniczych. Seria B. Prace Komisji Nauk Rolniczych i Biologicznych

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1995

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tom 31[43]

13

Long-term changes in the ecosystem of a lake (Lake Strzyzminskie) and an island induced by a colony of Great Cormorants (Phalacrocorax carbo sinensis L.)

63%

Klimaszyk P., Brzeg A.

Oceanological and Hydrobiological Studies

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2015

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tom 44

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nr 3

14

Effects of boron fertilization of spring cereals depending on application methods

63%

Wrobel S.

Journal of Elementology

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2009

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tom 14

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nr 2

383-393

The study is a comparison of effects produced by boron fertilization applied to spring barley and oats, grown on light soil, low in available boron, in relation to the application method (pre-sowing, top dressing, foliar applications) and rates of the element. The study was carried out as a three-year series of one-year, two-factor strict field trials (the splitplot design). It has been demonstrated that top dressing with boron applied to soil at the tillering stage as well as foliar fertilization during the stem elongation stage can significantly improve yields. Grain of both cereals from the control plots showed symptoms of insufficient boron nutrition, which were absent when boron fertilization had been applied. Presowing fertilization, although not affecting the yields, improved the supply of grain with boron. Differences between the cereal species were found in terms of boron concentrations in vegetative organs of the cereals and in their response to higher availability of this nutrient. Compared to spring barley, oats was characterised by a much higher content of boron in vegetative parts and was more responsive to increased concentrations of boron in soil.

15

Enzymatic activity of urease and dehydrogenase in soil fertilized with GWDA compost with or without a PRP SOL addition

63%

Krzywy-Gawronska E.

Polish Journal of Environmental Studies

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2012

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tom 21

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nr 4

In a two-year field experiment (2008-09), the effect of increasing doses of compost produced from municipal sewage sludge with or without the addition of active substance PRP®SOL (PRP Technologies, France) on urease and dehydrogenase activities during cultivation of winter wheat and spring rapeseed was studied. The experimental design included a control treatment with standard mineral fertilization and three levels of organic fertilization. The used compost doses were equivalent to 100, 200, and 300 kg N∙ha⁻¹. Organic fertilization was carried out on 28 September 2007. In 2008 and 2009 the whole experimental area was fertilized with active substance PRP SOL at a 150 kg∙ha⁻¹ dose and multicomponent fertilize Polifoska 6 at a 200 kg∙ha⁻¹ dose. Due to the low nitrogen content in Polifoska 6 (6% N), urea top-dressing for winter wheat and spring rape-seed was applied at a dose of 100 kg N∙ha⁻¹ in two times periods. Soil samples for chemical analyses were collected from the arable layer (0-25 cm) under winter wheat four times: April, May, and July (soil sampling times I to III), and after its harvest at the end of August 2008 (sampling time IV). In spring 2009, spring rapeseed was sown in the same field, and soil samples for analyses were collected in the same times I to III (April, May, and July), while soil sampling time IV following the rapeseed harvest fell at the beginning of August 2009. It was found that fertilization with a triple dose of compost with a PRP SOL addition increased the soil pHKCl value as compared to control soils. Higher organic carbon (OC), nitrogen (N), and phosphorus (P) contents were found in the soils collected from experimental plots being fertilized with a double and a triple dose of municipal sewage sludge compost with a PRP SOL addition. Significant increase in urease activity was found between soil sampling times I and IV (specify the treatment here). The applied fertilization with single and a triple doses on compost with or without PRP SOL increased the urease activity on average by 30.4 between soil sampling times I and IV. The largest increase in dehydrogenase activity was observed between soil sampling times I and III and in control objects. The applied fertilization with a triple dose of compost with or without PRP SOL increased the dehydrogenase activity on average by 18.65% between soil sampling times I and III. The applied organic fertilization together with active substance PRP SOL stimulated the enzymatic activity of urease and dehydrogenase in all cases.

16

Effect of differentiated fertilization on the content of soil organic carbon in the conditions of long-term fertilization experiment

63%

Rutkowska B., Szulc W., Labetowicz J.

Annales Universitatis Mariae Curie-Skłodowska. Sectio E. Agricultura

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2004

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tom 59

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nr 1

17

The effects of varied soil and foliar mineral fertilization levels in the production of high-starch potatoes

63%

Bogucka B., Cwalina-Ambroziak B., Zieba T.

Polish Journal of Natural Sciences

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2010

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tom 25

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nr 3

The objective of this study was to determine the effect of varied (280 and 420 kg NPK ha⁻¹) soil and foliar application of mineral fertilizers (Basfoliar 12-4-6, ADOB Mn, Solubor DF) on the yield and qualitative traits of late-maturing potato variety Jasia. An exact, two-factorial field experiment was conducted by the randomized split-plot method, in four replications, in the years 2004–2006 in the Masurian Lakeland. The total yield of potato tubers, the content and yield of starch, and the grain size fractions of starch were determined in the study. The applied fertilizers, regardless of their rates, had no significant effect on the total yield of potato tubers and starch yield. The starch content of potatoes was affected by soil fertilization. An increase in the rate of mineral fertilizers from 280 to 420 kg NPK ha⁻¹ caused a decrease in starch content. Large starch grains (> 40 μm in diameter), which enable to reduce the overall loss during the removal of starch from the potato pulp, dominated in the experimental material.

18

Heavy metals in soil fertilized with manure and nitrogen

63%

Bednarek W., Mackowiak C.

Polish Journal of Soil Science

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2008

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tom 41

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nr 2

195-200

During the long-standing field studies, the influence of fertilizing with manure and nitrogen on the content of the soluble forms (in 1 M HCl dm⁻³) of heavy metals (Pb, Cd, Ni, Cr) in soil was assessed. Fertilizing with increasing doses of manure (0-80 t ha⁻¹ ) caused significant but irregular changes in the content of Pb, Cd and Ni. Fertilizing with nitrogen (0-120 kg N ha⁻¹ ) did not cause significant changes in the content of the assayed forms of metals, especially of Pb, Ni and Cr. In the vast majority of cases, no important relationships were observed between the assayed physical and chemical properties of soil and the content of soluble forms of Pb, Cd, Ni and Cr.

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