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Impact of soil contamination with fluorine on the content of potassium in the biomass of crops

100%

Szostek R., Ciecko Z.

Acta Agrophysica

2015

tom 22

nr 1

The paper presents results of a study on the influence of fluorine-contaminated soil, supplemented with lime, charcoal and loam, on the content of potassium in eight species of crops. The experiments consisted of eight greenhouse pot trials in 2009-2011. The following factors were tested: I – increasing doses of fluorine in the form of potassium fluoride; II –substances neutralising the soil contamination with fluorine. The content of potassium in plants varied, depending on the degree of soil contamination with fluorine, the application of substances inactivating this xenobiothic element, and on the plant species and organs. The highest mean potassium concentration was detected in the aerial bio-mass of phacelia (46.4 g K kg-1 d.m.) and winter oilseed rape (45.9 g K kg-1 d.m.), while the lowest one was assayed in the grain and straw of spring triticale (5.3 and 7.9 g K kg-1 d.m.). The increasing degree of soil contamination with fluorine contributed to an increase in the average content of potassium in maize, narrow-leaf lupine, winter oilseed rape, black radish, the aerial biomass of yellow lupine and the aerial biomass of the first cut of alfalfa, compared to the control. In general, the neutralising substances applied caused a decrease in the content of potassium in the analysed plant parts.

Effect of mycorrhizal inoculation and eco-compost on the growth and flowering of spreading marigold (Tagetes patula L. cv. Petit Orange) cultivated in heavy metal contaminated substrate

80%

Nowak J., Kunka M.

Zeszyty Problemowe Postępów Nauk Rolniczych

2009

tom 540

This study was conducted in order to determine the effect of inoculation with Endorize-TA AMF and soil amendment with compost of urban waste; consisting of decomposed grass clippings, leaves, and wood chips, without sewage sluge, (Eko-Compost); on the growth and flowering of French marigold in the growing substrate polluted with Cd, Pb, and Zn. French marigold was found relatively tolerant to heavy metals in the growing substrate. Differences in growth of plants in the substrates unpolluted and polluted with heavy metals were negligible. The lowermost leaves of plants grown in heavy metal polluted substrates had necrotic margins. Mycorrhization with AMF did not improve the growth and aesthetic value of plants grown in the substrates polluted with heavy metals. Compost supply had beneficial effect on the growth and quality of plants grown in substrates polluted with heavy metals. Compost supply decreased the Pb and Zn contents in shoots of French marigold.

Ograniczanie wyników

1 Acta Agrophysica

1 Zeszyty Problemowe Postępów Nauk Rolniczych

1 Ciecko Z.

1 Kunka M.

1 Nowak J.

1 Szostek R.

1 2015

1 2009

Wyniki wyszukiwania

Impact of soil contamination with fluorine on the content of potassium in the biomass of crops

Effect of mycorrhizal inoculation and eco-compost on the growth and flowering of spreading marigold (Tagetes patula L. cv. Petit Orange) cultivated in heavy metal contaminated substrate