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The influence of the composts with the participation of municipal sewage sludge on the available forms of phosphorus in the soil as well as the yield of the seeds of spring rape The field and laboratory experiment was carried on the brown incomplete soil of the complex of rye good. The obtained results in the yield experiment show that the composts with the participation of municipal sewage sludge increased essentially the yield of the seeds of spring rape in comparison with the control variant. Doubling of the doses of mineral nitric - potassium fertilization against the background of the composts did not have a significant influence on increasing the yield of the seeds of spring rape in comparison with the single doses. The composts with the participation of municipal sewage sludge in the field and laboratory experiment caused a significant increase of the content of the available forms of phosphorus in the soil. As time went by the distribution of the composts in the soil, the content of the available forms of phosphorus increased.

polish journal of chemical technology

The influence of the composts with the participation of municipal sewage sludge on the available forms of phosphorus in the soil as well as the yield of the seeds of spring rape