Work

The influence of various doses of phosphorus and of the addition of calcium or potassium fertilization upon the yield of tomatoes in Wrocław hydroponic culture using two intensities of light

Year: 2013

Type: article

Abstract: Two experiments were carried out with phosphate fertilization of tomatoes in hydroponic culture. It has been proved that an additional dose of phosphorus given during the second cluster bloom, caused an yield increase. The optimal dose is 12 g of superphosphate (16% P2O5) per plant. The "green back" symptoms did not appear in these conditions. The parallel additional applying of calcium or potassium gave a decrease of the yield. When the light intensity was lowered to about 50%, the yield has decreased by half. In these conditions an additional applying of calcium (0,4 g CaCO3) and phosphorus (1g superphosphate) annulated the negative influence of the low light intensity.

Source: Acta Agrobotanica

DOI: 10.5586/aa.1980.017

Authors: Z. Gumicka, T. Branicka, M. Osmelak

Institution: University of Wrocław

Language: English

Topic: Plant Growth and Agriculture Techniques

Subfield: Soil Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: gold

Estimated APC paid: $431