The influence of biostimulants on maize´s yield and soil nutrient release

B.Sc. Aung Myo Thu, BSc

Diplomová práce

Abstract:

The modern agricultural practices have been introducing towards organic, sustainable or environmentally friendly systems. These modern agricultural practices aim to reduce inputs without reducing the yield and quality. The adverse effect of these synthetic chemicals on human health and environment can only be reduced or eliminated by adopting new agricultural technological practices such as organic agriculture, sustainable agriculture orecological agriculture. Biofertilizers are recognized as biological products including living microorganisms or different natural extracts. When they are applied to seed, plant surfaces, or soil, they promote growth by several mechanisms such as increasing the supply of nutrients, increasing root biomass or root area, and increasing nutrient uptake capacity of the plant. Biofertilizers can be used as complements to mineral fertilizers.The screening pot experiment was set up to investigate the effect of biostimulants on maize growth and yield. Proradix, RhizoVital 42 (RV42), RhizoVital 45, MUCI, RV42 + MUCI, SuperFifty, NemaTec, LamVita, Biological Fertilizer OD and Trichoderma OMG were used as biostimulants to investigate the effect on maize growth and nutrient contents and uptake in both applications.The positive effect of biostimulants did not occur in single biostimulants application. Control (soil only) treatment was the best one in biostimulants only applications, which means that application only biostimulants into the soil was not effective. However, some positive effect was obtained in the combined application of RP with biostimulants treatments. NemaTec treatment, which belongs to the seaweed extracts group, was the effective one within the combined application of RP with biostimulants. RP + NemaTec provided better results in plant height, biomass weight, and uptake of P, Mg, Ca, Mn when compared to all biostimulants application in our experiment. On the other hand, the negative result of maize growth and yield was observed with MUCI, where were also usually found the lowest contents and uptake by maize aboveground biomass

Keywords

Biostimulants, Maize, Sustainable Agriculture, Biofertilizers, Rock phosphate

Jazyk práce: angličtina

Datum vytvoření / odevzdání či podání práce: 3. 8. 2020

Obhajoba závěrečné práce

• Vedoucí: Ing. Martin Kulhánek, Ph.D.
• Oponent: Pia Euteneuer, externi

Česká zemědělská univerzita v Praze

Fakulta agrobiologie, potravinových a přírodních zdrojů

Magisterský studijní program / obor:
Natural Resources and Environment / Natural Resources and Environment