COMPOSITION HAVING DOUBLE EFFECT AND METHOD FOR APPLYING THE SAME

The invention relates to a composition having double effect of foliar fertilizer and means of reducing the amount of toxic heavy metals absorbed by plants from polluted soils, which comprises 300...400 g of urea, 1.5...3 g of MnCl2.H2O or MnSO4.H2O, 0...20 g of K2SO4, 5...10 g of EDTA-Na2 and 5 cm3...

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Bibliographische Detailangaben
Hauptverfasser: BARBU CONSTANTIN HORIA, POP MIHAI RADU, SAND CAMELIA, OPREAN LETITIA
Format: Patent
Sprache:eng ; rum
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Zusammenfassung:The invention relates to a composition having double effect of foliar fertilizer and means of reducing the amount of toxic heavy metals absorbed by plants from polluted soils, which comprises 300...400 g of urea, 1.5...3 g of MnCl2.H2O or MnSO4.H2O, 0...20 g of K2SO4, 5...10 g of EDTA-Na2 and 5 cm3 of non-ionic detergent calculated per 1 l of solution, so as to ensure a content of 135...176 g of N, 0.5...1 g of Mn2+ and 0...9 g of K+ to 1 l of solution, as well as to a method for applying the composition consisting in that, with a view to reducing the amount of lead and cadmium in the edible aerial parts of plants cultivated on polluted soils, based on the competition between toxic heavy metals and manganese, the edible aerial parts of plants cultivated on heavy metal-polluted soils are sprayed with a solution of the claimed composition diluted in a ratio of 1:10, in a dose of 0.1 l/m2 of surface to be protected. Invenţia se referă la o compoziţie cu dublă acţiune, de îngrăşământ foliar şi de reducere a cantităţii de metale grele toxice absorbite de plante din solurile poluate, constituită din 300...400 g uree, 1,5...3 g MnCl2.H2O sau MnSO4.H2O, 0...20 g K2SO4, 5...10 g EDTA-Na2 şi 5 cm3 detergent neionic calculat la 1 l de soluţie, astfel încât să se asigure un conţinut de 135...176 g N, 0,5...1 g Mn2+ şi 0...9 g K+ la 1 l de soluţie, precum şi la o metodă de aplicare a compoziţiei, care constă în aceea că, în scopul reducerii cantităţii de plumb şi cadmiu din părţile aeriene comestibile ale plantelor cultivate pe soluri poluate, bazată pe competiţia dintre metalele grele toxice şi mangan, părţile aeriene comestibile ale plantelor cultivate pe soluri poluate cu metale grele se stropesc cu o soluţie diluată în proporţie de 1 : 10 a compoziţiei conform invenţiei, la o doză de 0,1 l/m2 suprafaţă de protejat.