scholarly journals A talaj arzénterhelésének hatása a kísérleti növények arzéntartalmára nehézfémterheléses tartamkísérletben

2017 ◽  
Vol 12 (3) ◽  
pp. 119-125
Author(s):  
László Szegedi ◽  
Péter Tamás Nagy
Keyword(s):  
Hordeum Vulgare ◽  
Pisum Sativum ◽  
Medicago Sativa ◽  
Cannabis Sativa ◽  
Sinapis Alba ◽  
Hordeum Vulgare L ◽  
Sinapis Alba L ◽  
Pisum Sativum L ◽  
Medicago Sativa L

Az 1994 őszén az Eszterházy Károly Egyetem Tass-pusztai Tangazdaságában csernozjom barna erdőtalajon szabadföldi kisparcellás nehézfémterheléses tartamkísérlet indult 8 elem (Al, As, Cd, Cr, Cu, Hg, Pb, Zn) vízoldható sóival, 3 terhelési szinten (30, 90 és 270 kg elem/ha), 3 ismétlésben. Jelzönövényként 1998-ban borsó (Pisum sativum L.), 1999-ben silócirok (Sorghum bicolorL.), 2001-ben őszi árpa (Hordeum vulgare L.), 2002-ben fehérmustár (Sinapis alba L.), 2003- ban rostkender (Cannabis sativa L.) és 2005-ben lucerna (Medicago sativa L.) termesztésére került sor. A kísérlet során vizsgáltuk a talaj és a növények nehézfémtartalmát, amelynek ismeretében nyomon követhető a vizsgált elemek talajban való viselkedésének és talaj-növény rendszerben való mobilitásnak alakulása. Az arzén kifejezett depresszív hatása a kísérlet első két évében mutatkozott meg, a kísérlet további éveiben a vizsgált növények esetén mérséklődött, majd megszűnt. Az arzén a maximális terhelésnél sem dúsult a növényi szervekben, mindössze néhány növény vegetatív szerve mutatott némi akkumulációt. A kísérleti növények szemtermése védettnek bizonyult az arzénszennyezéssel szemben. A kísérleti eredmények alapján kijelenthető, hogy az arzén mozgása gátolt a talaj-növény rendszerben, mozgékonysága a kísérlet negyedik évétől jelentősen csökkent. 

EFFECT OF SEA CROP 16 AND ERGOSTIM ON CROP YIELDS AND PLANT COMPOSITION

1982 ◽  
Vol 62 (3) ◽  
pp. 527-532 ◽  
Author(s):  
UMESH C. GUPTA ◽  
J. A. MacLEOD
Keyword(s):  
Triticum Aestivum ◽  
Pisum Sativum ◽  
Medicago Sativa ◽  
Crop Yields ◽  
Triticum Aestivum L ◽  
Field Conditions ◽  
Plant Composition ◽  
Greenhouse Study ◽  
Pisum Sativum L ◽  
Medicago Sativa L

Experiments were conducted to determine the effect of Sea Crop (SC 16) and Ergostim on the yield and nutrient composition of a few crops. Studies conducted under greenhouse and field conditions showed that the yields of wheat (Triticum aestivum L.) and peas (Pisum sativum L.) were not affected by the addition of SC16. The nitrogen (N) and sulfur (S) concentrations of the two crops were not affected by SC 16, except in the control and SC 16 treatment only where the increases were likely due to a concentration effect, since these two treatments had lower yields. Boron (B) and molybdenum (Mo) concentrations in the plants were significantly affected by B and Mo applications, but not by SC 16. A greenhouse study showed that the yields of alfalfa (Medicago sativa L.) and wheat were not affected by the addition of Ergostim. The addition of Ergostim did not affect the N or S concentration of wheat or three cuts of alfalfa.

scholarly journals Ecotoxicity of In-Situ Produced Compost Intended for Landfill Restoration

Environments ◽  
2018 ◽  
Vol 5 (10) ◽  
pp. 111
Author(s):  
Magdalena Vaverková ◽  
Dana Adamcová ◽  
Maja Radziemska ◽  
Jan Zloch ◽  
Martin Brtnický ◽  
...  
Keyword(s):  
Hordeum Vulgare ◽  
Plant Biomass ◽  
Treatment Method ◽  
Sinapis Alba ◽  
White Mustard ◽  
Hordeum Vulgare L ◽  
Sinapis Alba L ◽  
Germinating Capacity ◽  
Biological Tests ◽  
Ecotoxicity Tests

Municipal solid waste (MSW) has become a matter of increasing global concern. Biological conversion is considered to be the most applicable disposal method, especially for the organic fraction of MSW. The aim of this study was to evaluate composting as a treatment method for the sustainable management and recycling of MSW and to test the ecotoxicity of the compost produced on the landfill surface. The ecotoxicity of the compost was investigated by means of a set of biological tests. The ecotoxicological impact of the compost was evaluated by plant growth tests with white mustard (Sinapis alba L.) and barley (Hordeum vulgare L.). Plants were grown under controlled conditions for 21 days, in earthen pots, treated with MSW compost (MSWC) to study the effect of MSWC on plant biomass production. Sprouts and the number of growing plants occurring in the earthen pots were counted. The values obtained from three simultaneously conducted experiments were averaged and presented. Plants growing in the earthen pots with the compost exhibited increasing plant biomass while no changes were observed in their appearance; retarded growth or necrotic changes were not recorded. The ecotoxicity tests performed show that the analyzed compost produced in the composting plant situated on the landfill surface achieved high percentages of the germinating capacity of white mustard (Sinapis alba L.) and barley (Hordeum vulgare L.) seeds and can be therefore used in the subsequent reclamation of the landfill concerned.

Efficacy of Si fertilization to modulate the heavy metals absorption by barley (Hordeum vulgare L.) and pea (Pisum sativum L.)

2016 ◽  
Vol 23 (20) ◽  
pp. 20402-20407 ◽  
Author(s):  
Wei Xiao ◽  
Liu Yuqiao ◽  
Zhan Qiang ◽  
Vladimir Matichenkov ◽  
Elena Bocharnikova ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Hordeum Vulgare ◽  
Pisum Sativum ◽  
Hordeum Vulgare L ◽  
Pisum Sativum L

Farmer-directed on-farm experimentation examining the impact of companion planting barley and oats on timothyalfalfa forage establishment in central Newfoundland

2004 ◽  
Vol 84 (1) ◽  
pp. 217-221 ◽  
Author(s):  
D. Spaner and A. G. Todd
Keyword(s):  
Hordeum Vulgare ◽  
Medicago Sativa ◽  
Avena Sativa ◽  
Phleum Pratense ◽  
Forage Production ◽  
Hordeum Vulgare L ◽  
Medicago Sativa L ◽  
On Farm ◽  
The Impact ◽  
Phleum Pratense L

Oats (Avena sativa L.) or barley (Hordeum vulgare L.) sown at increasing seeding rates of 23, 45 and 68 kg ha-1 with a timothy (Phleum pratense L.)-alfalfa (Medicago sativa L.) mixture (harvested at cereal soft dough) resulted in increasing forage yields containing decreasing alfalfa, crude protein, P and Ca percentage in the planting year. Barley out-yielded oats by 11% in the planting year. Oats or barley sown at seeding rates up to 68 kg ha-1 do not impede underseeded forage establishment or forage production in the subsequent year in central Newfoundland. The implications of farmer-directed on-farm experimentation are discussed. Key words: Hordeum vulgare L., Avena sativa L., Phleum pratense L, Medicago sativa L., underseeding

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