Effect of foliar fertilization application on the growth and mineral nutrient content of maize seedlings under drought and salinity
Year: 2008
Type: article
Abstract: The objective of the present study was to investigate the interactive effects of foliar fertilization and drought and salinity on the growth of maize. Maize plants were grown in soil under drought or salinity in a greenhouse for 23 days after sowing. At harvest, plant height, shoot biomass, and the lengths, fresh weights and dry weights of the blade in the expanded leaf 3 and expanding leaves 4 and 5 were determined. Mineral elements (Na, K, Ca, Mg, P and N) in individual leaves were analyzed. Although there was a reduction in evapotranspiration, maize growth, such as shoot fresh weight and dry weight, and leaf fresh weight and dry weight under drought and salinity, the application of foliar fertilization did not improve plant growth under short-term drought or salt stress. Drought reduced the uptake of K, Ca, Mg and P, which may be attributed to decreased transpiration. An increase or no change in the nutrient concentration in leaves under saline conditions suggests that an osmotic effect may be responsible for the plant reduction.
Source: Soil Science & Plant Nutrition
Authors: Yuncai Hu, Zoltan Burucs, Urs Schmidhalter
Institutions: Technical University of Munich, University of Pannonia
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: bronze
OpenAlex ID: W2128132985