engleski

Zinc as a plant nutrition problem in the eastern Croatia

It has been estimated that zinc deficiency is the most widespread micronutrient deficiency reducing crops production and quality worldwide. Nowadays, Zn deficiency is widely recognized and it is considered as one of the most important micronutrient problem in the world. The major soil factors affecting the Zn availability are neutral to alkaline soil reaction, calcareous soils and acid leached and sandy soils. The Zn deficiency symptoms have been diagnosed on maize plants which were grown on some neutral to slightly alkaline soils in the Eastern Croatia. Maize is a crop species with greater requirements for zinc and more susceptible to Zn deficiency, especially the inbred lines as parental components of hybrids. The objective of this paper was to summarize some previous findings regarding Zn nutritional problems and ways of its alleviations in the area of east Croatia. Response of maize genotypes to different Zn-fertilization treatments, as well as the grain yields and ear-leaf zinc concentration were shown. Results indicated on important role of genotype on Zn content in plant. Also, some results pointed out at complex relations between the Zn content in soil, plant tissue and grain.

Zn deficiency ; Eastern Croatia ; maize ; inbred lines

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