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Iron (Fe) and iron chlorosis in plant nutrition

100%

Talas Y., Aydin S., Yegenoglu E. D., Simsek H.

Annals of Warsaw University of Life Sciences - SGGW. Horticulture and Landscape Architecture

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2016

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tom 37

2

The effect of YaraRega fertilization on the nitrogen effectiveness and yield of sweet sorghum (Sorghum bicolor (L.) Moench)

86%

Sowinski J., Konieczny M., Jama-Rodzenska A.

Acta Scientiarum Polonorum. Agricultura

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2017

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tom 16

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nr 4

3

Application of extraction with 0.03 M CH3COOH as the universal method in orchard soil analysis

86%

Domagala-Swiatkiewicz I.

Folia Horticulturae

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2005

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tom 17

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nr 2

4

Some aspects of integrated plant nutrition in orchards

86%

Szucs E.

Acta Scientiarum Polonorum. Hortorum Cultus

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2005

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tom 04

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nr 1

Results of our experiments are interpreted according to fertilizing system developed by long-term experiments and investigations. The potassium fertilization and favourable N/K ratio can increase the frost tolerance of generative organs of fruit trees to some extent. The effect of suitable growing site can surpass the effect of fertilizers. Frequently, the increase of phosphorus and potassium levels in the soil and leaves are relatively small comparing to amount of fertilizers, because of the strong fixation in the fertilized soil layer and – in other cases – leaching from root zone. Main soil characters should be taken into consideration to determine the favourable phosphorus, potassium levels in the soil. The excess of lime can be compensated by potassium fertilization to some extent, but on acid soils the NPK fertilization may be more effective – or effective at all – following lime or dolomite application.

5

Effect of increasing nitrogen doses and harvest terms on the quantitative and qualitative parameters of sweet basil [Ocimum basilicum L.]. Part II

86%

Golcz A., Markiewicz B.

Herba Polonica

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2002

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tom 48

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nr 3

It was demonstrated that the content of essential oil in sweet basil depends on the level of nitrogen nutrition and on the term of herb harvest. The greatest content of the essential oil was found in herb harvested at the beginning of blooming using 0.9 g N/plant (0.6 g N pre-vegetation + 0.3 g N after the first harvest). After the fertilization levels: 0.9 g N and 1.2 g N/plant, the leaves of basil cv. Wala were characterized by the most desired aromatic discriminants: basil-like, sharp, spicy and herb-like.

6

Effect of plant nutritional status on the yield of eggplant (Solanum melongena L.) grown in organic substrates. Part I. Nitrogen, phosphorus, potassium

72%

Markiewicz B., Golcz A., Kujawski P.

Acta Scientiarum Polonorum. Hortorum Cultus

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2008

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tom 07

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nr 2

In the years 2002–2003, in a foil tunnel, vegetation experiment in the growing of two eggplant cultivars ‘Epic F1’ and ‘Solara F1’ were carried out. Plants were grown in cylinders of 6 dm3 capacity filled with substrate which consisted of: 1) raised peat (from Lithuania), 2) pine bark + low-moor peat (v : v = 1 : 1). In the vegetation period, top-dressing with nitrogen, phosphorus and potassium was applied. Fruit harvest was carried out many times. The total fruit yield was determined. Index parts of plants were sampled for analyses in which the following values were identified: in ‘Epic’ cultivars: 1.12–3.40% N; 0.42–1.14% P; 1.80–4.81% K. In ‘Solara’ cultivars, the following values were found: 1.17–3.50% N; 0.53–1.27% P; 1.96–4.00% K, depending on the substrate and the fertilization level. Differences were found in the total yield and in the nutritional status of plants, depending on the substrate, fertilization level, cultivar and term of sampling.

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Nutritional value and mineral concentrations of sweet basil under organic compared to chemical fertilization

72%

Naiji M., Souri M. K.

Acta Scientiarum Polonorum. Hortorum Cultus

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2018

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tom 17

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nr 2

Safe production of leafy vegetables is more important than other horticultural crops due to their significant contribution in health promotion of consumers. In present study, the growth and nutritional quality of sweet basil plants (Ocimum basilicum L.) were evaluated under some organic compared to chemical NPK fertilizing treatments. A non cultivated soil was used in the experiment, and treatments were arranged in completely randomized design with four replications. Manure in 20 and 40% of pot volume, vermicompost in 20 and 40% of pot volume, biophosphate, NPK fertilizer and a no fertilizing control were applied to plants. The results showed that plant growth and biochemical characteristics were differently affected by organic and chemical fertilization treatments. Vermicompost particularly in 20% of pot volume resulted in highest growth and quality parameters, while the lowest values recorded in 40% manure treatment. The leaf content of ascorbic acid, essential oil, protein and minerals (P, K, Mn, Cu) were highest in 20% vermicompost, whereas leaf content of Mg, Fe and Zn was highest in 40% vermicompost treatment. Leaf nitrate content was significantly reduced in all organic treatments than NPK fertilization. Biophosphate also improved the yield and quality traits compared to unfertilized plants, while manure in both quantities reduced most of the traits (leaf vitamin C, oil yield and protein content) except the content of phenols. This indicates that processing as vermicompost can be a better way of manure application for basil production.

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Deliberations on zinc - a trace mineral or a toxic element?

72%

Strachel R., Zaborowska M., Wyszkowska J.

Journal of Elementology

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2016

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tom 21

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nr 2

The paper gives a comprehensive insight into the role of zinc in the biosphere. It reviews numerous functions of this metal at various levels of the organisation of ecosystems. An attempt has ben made to assess its importance as a microelement, while not neglecting its toxicity due to excessive accumulation of zinc in the environment. Zinc is a natural component of the Earth's crust, but in many places it has accumulated in amounts near or above the safe levels. Currently, the use of this metal is very broad, and therefore attention should be drawn to possible consequences arising from elevated levels of zinc in the environment. Dispelling controversies surrounding heavy metals is a necessary step for gaining systematic and wider knowledge on these elements. This in turn will create an opportunity for the development of strategies and subsequent actions undertaken by everyone, from individuals to major international industrial corporations, aimed at achieving homeostasis in an environment polluted with heavy metals. Increased levels of zinc can adversely affect microbiological and biochemical processes occurring in the soil and the development of plants, which has a negative impact on the quantity and quality of crops. Therefore, low bioavailability of heavy metals, including zinc, in agricultural land is a key to the stability of ecosystems and food security.

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The response of lettuce to fluorescent light and led light relative to different nitrogen nutrition of plants

72%

Borowski E., Hawrylak-Nowak B., Michalek S.

Acta Scientiarum Polonorum. Hortorum Cultus

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2014

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tom 13

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nr 5

In two successive pot experiments with lettuce cv. ‘Królowa Majowych’, conducted in a phytotron, this study investigated the effect of cool white fluorescent light (FRS) at a PPFD 200 ȝmol·m-2·s -1 and red-blue LED light at a PPFD of 200 and 800 ȝmol·m-2·s -1 on photosynthesis, yield, leaf area, SLA, and the content of photosynthetic pigments, total N and nitrates. Experimental plants were grown in sphagnum peat supplemented with full-strength Hoagland’s solution at the beginning of the experiment. 10 days after plants were pricked out, 4 experimental series were made which differed in the form of N supplied to the growing medium at a rate of 420 mg (2N): 1) Hoagland’s solution (control); 2) Hoagl + 2N-NO3; 3) Hoagl + 2N-NH4; 4) Hoagl + 2N-NH4/NO3. The obtained results showed that the lettuce leaf yield under FRS light was distinctly higher than under LED light at a PPFD of 200, and in particular at 800 ȝmol·m-2·s -1. Besides, the leaves grown under FRS light showed a significantly thinner leaf blade (SLA) and a lower content of photosynthetic pigments, total N and nitrates. The photosynthetic rate was higher under LED light relative to FRS light. Different nutrition of plants with N-NO3, N-NH4 and N-NH4/NO3 had a similar effect on the yield and analysed traits of lettuce leaves, regardless of the type of light and the level of irradiation with LED light. LED lamps seem to be a very promising light source for plants, but they require further research on how to adapt the spectral distribution of light to their requirements.

10

Characteristics of organic carbon and nitrogen fractions in worts

72%

Kalembasa D.

Electronic Journal of Polish Agricultural Universities. Series Agronomy

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2005

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tom 08

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nr 1

In worts (rye and potato) the total contents of nitrogen and carbon and their fractions were determined for fertilization purposes in agriculture. The rye wort contained more carbon and nitrogen, 442.0 and 32.0 (g.kg-1), than the potato wort; 340.3 and 28.9. 0.1 mol.dm-3 of NaOH solution was used for the extraction of humic acids from worts. The carbon extracted by alkaline extract reached 51.0% of its total content in the rye wort and 75.2% in the potato wort. The extracts were acidified to the value of pH 1.5 and got separated into precipitated solid and liquid. The content of carbon in precipitated (solid) phase accounted for 3% of the total carbon in the rye wort and for 19.5% in the potato wort. The precipitated solids were analyzed with the spectrophotometric methods and the results have shown very similar properties as the humic acids extracted from soils. The application of acid hydrolysis allowed for a separation of nitrogen compounds as the following fractions expressed as a percentage of total nitrogen in rye and potato worts were respectively: 1) in non-hydrolysable compounds 88.7 and 87.9; 2) in hydrolysable compounds 11.3 and 12.1. Taking the nitrogen determined in hydrolysable compounds as 100%, the following fractions were separated: a) easily hydrolysable compounds 30.5 and 29.5%; b) not easily hydrolysable compounds 54.0 and 5.5%; c) nitrogen in mineral compounds 15.5 and 65.0%.

11

Effect of NaCl and supplemental calcium on growth parameters and nitrate reductase activity in maize

72%

Sacala E., Biegun A., Demczuk A., Grzys E.

Acta Societatis Botanicorum Poloniae

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2005

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tom 74

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nr 2

In this study, investigated were the effects of NaCl (60 mmol/dm-3) and NaCl supplemented with different salts (5 mmol/dm-3 CaCl2, CaSO4, CaCO3, KCl), on growth of two maize varieties (Cyrkon and Limko). After 7 days of cultivation in nutrient solution the growth response to salinity of both maize varieties was similar. NaCl led to a dramatic decrease in growth of plants (approx. 50% reduction in fresh and dry weight of root, and 70% reduction in fresh weight of shoot). Addition of extra Ca2+ or K+ to nutrient solution containing NaCl did not definitely improve the growth parameters of maize. However, among the tested salts, CaCl2 had a beneficial visual effect on maize seedlings. In other cases the plants showed noticeable symptoms of salt damage. In long term exposure to salinity (two weeks) growth of Cyrkon was more inhibited than Limko. Comparison of growth responses in short-term exposure to salinity (7 days) with long-term (14 days) showed that in Cyrkon variety the negative effects of NaCl were intensified and addition of CaCl2 to salinized solution had not positive effects on growth. On the contrary, in Limko variety, there was a significant improvement in growth (especially in root dry weight). This fact indicates that during longer exposure to salinity Limko was able to adapt to those conditions. Salinity caused a significant decrease in leaf nitrate reductase activity (60% and 30% reduction respectively in Limko and Cyrkon). Addition of CaCl2 to salinized nutrient solution resulted in greater enzyme inhibition in Cyrkon (50% decline in relation to plants grown under sole NaCl), and 30% increase in Limko. Inhibition of nitrate reductase activity did not cause a decrease in concentration of soluble protein in maize leaves.

12

The influence of lithium addition and soil moisture on lithium and water uptake by plants

72%

Jurkowska H., Rogoz A., Wojciechowicz T.

Polish Journal of Soil Science

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1997

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tom 30

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nr 1

13

Evaluation of the macroelement nutritional state of hops on the basis of the chemical analyses of leaves and soil

72%

Sugier D., Szewczuk C.

Polish Journal of Soil Science

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2002

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tom 35

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nr 1

Leaf samples were collected in the subsequent years (1993-1995) from 24 hop plantations representative of the Lublin region and localised on three soil units: fluvisols, luvisols developed from loamy sands and cambisols. Fully-grown leaves were collected during the vegetation period from the main stem at 7 developmental stages. The highest and the most stable cone yields within 3 years were achieved on fluvisols. Therefore it can be accepted that the contents of the particular components from plantations on this type of soil is close to the optimum. Taking into account the above criteria, it was concluded that plantations localised on loess soil were insufficiently supplied with potassium, but adequately with phosphorus. In turn, hop cultivation situated on loamy sand showed a deficiency in magnesium and calcium but good nutrition with potassium.

14

Effect of increasing nitrogen doses and harvest terms on the growth and development of sweet basil [Ocimum basilicum L.]. Part I

72%

Golcz A., Seidler-Lozykowska K., Markiewicz B.

Herba Polonica

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2002

|

tom 48

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nr 2

Wzrastające nawożenie azotowe miało istotny wpływ na plon ziela bazylii wonnej (Ocimum basilicum L.). Najwyższy plon liści, łodyg oraz ziela uzyskano stosując dawkę 1.8 g N/roślinę (1.2 g przedwegetacyjnie + 0.6 g N/roślinę po I zbiorze). Plony zebrane w II terminie były wyższe od plonów z I terminu.

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Wplyw nawozenia potasem na tle zroznicowanych warunkow wodnych na plon i jakosc korzeni buraka cukrowego [Beta vulgaris L.]. Czesc III. Odzywienie roslin potasem i azotem

58%

Musolf R., Grzebisz W., Szczepaniak W., Chojnacka M.

Biuletyn Instytutu Hodowli i Aklimatyzacji Roślin

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2004

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nr 234

123-128

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Response of guava trees (Psidium guajava) to soil applications of mineral and organic fertilisers and biofertilisers under conditions of low fertile soil

58%

Shukla S. K., Adak T., Singha A., Kumar K., Singh V. K., Singh A.

Journal of Horticultural Research

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2014

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tom 22

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nr 2

17

Czego potrzebuje burak cukrowy

58%

Grzebisz W., Barlog P., Hofa W.

Agrochemia

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1997

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nr 03

14-15

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Pobor biologiczny pozostalosci C-2,4-D zwiazanych w glebie

58%

Lewandowska A., Weymann P.

Progress in Plant Protection

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2002

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tom 42

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nr 2

769-772

19

Differences in chlorophyll a fluorescence in response to iron, manganese and magnesium deficiency among cultivars of lettuce

58%

Czyczylo-Mysza I., Baczek-Kwinta R., Reszka A., Maslak J.

Acta Physiologiae Plantarum

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2007

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tom 29

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nr 1 Suppl.

20

Zaczac od analizy gleby

58%

Kurzynska B.

Biuletyn Informacyjno-Handlowy. Ośrodek Doradztwa Rolniczego Boguchwała

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1998

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nr 06

14

Ograniczanie wyników

Iron (Fe) and iron chlorosis in plant nutrition

The effect of YaraRega fertilization on the nitrogen effectiveness and yield of sweet sorghum (Sorghum bicolor (L.) Moench)

Application of extraction with 0.03 M CH3COOH as the universal method in orchard soil analysis

Some aspects of integrated plant nutrition in orchards

Effect of increasing nitrogen doses and harvest terms on the quantitative and qualitative parameters of sweet basil [Ocimum basilicum L.]. Part II

Effect of plant nutritional status on the yield of eggplant (Solanum melongena L.) grown in organic substrates. Part I. Nitrogen, phosphorus, potassium

Nutritional value and mineral concentrations of sweet basil under organic compared to chemical fertilization

Deliberations on zinc - a trace mineral or a toxic element?

The response of lettuce to fluorescent light and led light relative to different nitrogen nutrition of plants

Characteristics of organic carbon and nitrogen fractions in worts

Effect of NaCl and supplemental calcium on growth parameters and nitrate reductase activity in maize

The influence of lithium addition and soil moisture on lithium and water uptake by plants

Evaluation of the macroelement nutritional state of hops on the basis of the chemical analyses of leaves and soil

Effect of increasing nitrogen doses and harvest terms on the growth and development of sweet basil [Ocimum basilicum L.]. Part I

Wplyw nawozenia potasem na tle zroznicowanych warunkow wodnych na plon i jakosc korzeni buraka cukrowego [Beta vulgaris L.]. Czesc III. Odzywienie roslin potasem i azotem