Mechanization in agriculture & Conserving of the resources
Vol. 68 (2024), Issue 4, pg(s) 155-158

CONSERVING OF THE RESOURCES

Low-input fertilization with organic and complex mineral fertilizers and their influence on the content of available and total forms of macroelements in haplic chernozems

  • 1 Dobrudzha Agricultural Institute (DAI) – General Toshevo Agricultural Academy, Sofia

Abstract

The use of complex mineral, organo-mineral and organic fertilizers on Haplic Chernozems for 8 years lead to changes in the composition of soil organic matter. These fertilizers without the use of mineral N fertilization have a positive effect on the values of +NH4-N, available and total phosphorus in the soil, as well as cation exchangeable potassium.
Certainly organic fertilization as well as its combination with multicomponent mineral fertilizer has a positive impact on the agrochemical status of the soil. The potential nitrogen supplying capacity of the soil determined on the 28th and 56th days of incubation significantly increased the amount of mineralized nitrogen. The same was highest in the use of the organic fertilizer ExcelOrga, where the excess over the control in the values of net mineralizing capacity was 24.20%.

Keywords

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