Studies on increasing manganese nutrition effect of tomato (Lycopersicon esculentum Mill.) on differentiation of rhizosphere chemical composition

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Studies on increasing manganese nutrition effect of tomato (Lycopersicon esculentum Mill.) on differentiation of rhizosphere chemical composition

Journal Title: Aparatura Badawcza i Dydaktycza - Year 2014, Vol 19, Issue 2

Abstract

The aim of the conducted studies was to assess the effect of increasing Mn concentrations (within the range from 0.06 mg·dm-3 up to 19.2 mg·dm-3) on chemical composition of tomato rhizosphere (Lycopersicon esculentum Mill. cvs. ‘Alboney F1’ and ‘Emotion F1’) grown in rockwool. For plant fertigation was used nutrient solution with the following chemical composition (mg·dm-3): N-NH4 2.2, N-NO3 230, P 50, K 430, Ca 145, Mg 65, Cl 35, S-SO4 120, Fe 2.48, Zn 0.50, Cu 0.07, pH 5.50, EC 3.00 mS·cm-1. It was studied the following contents of manganese in nutrient solution (mg·dm-3): 0.06; 0.3; 0.6; 1.2 (experiment I, years 2008-2011); 2.4; 4.8; 9.6; 19.2 mg·dm-3 (experiment II, year 2012) – described as Mn-0; Mn-0.3; Mn-0.6; Mn-1.2; Mn-2.4; Mn-4.8; Mn-9.6; Mn-19.2. Increasing concentration of manganese applied in nutrient solution significantly changed the chemical composition of solution in slabs. Within range of manganese in nutrient solution up to 1.2 mg∙dm-3 was found significantly increase content of: N-NO3, Ca, Mg, S-SO4, Zn (except Mn-1.2), Na, Cl, pH (alkalization) and EC with simultaneous decrease content of: K (except Mn-0), Fe, Mn. Changes of P-PO4 and Cu were multidirectional. Within range of manganese in nutrient solution from 2.4 to 19.2 mg∙dm-3 was found significantly increase content of: Ca, Cu, Na, pH (alkalization) and EC (for ‘Emotion F1’) with simultaneous decrease content of: N-NO3, P-PO4, K, Fe, Mn. Changes of Mg, S-SO4, Zn, Cl and EC (for ‘Alboney F1’) were multidirectional.

Authors and Affiliations

Tomasz Kleiber

Keywords

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EP ID EP167885
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