ORIGINAL RESEARCH
Manganese and Zinc Foliar Applications Increase
Nutrient Content and Mitigate
Cadmium-Induced Growth Inhibition
in Spring Wheat
More details
Hide details
1
College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, Hohhot 010011, China
2
Inner Mongolia Key Laboratory of Soil Quality and Nutrient Resource, Hohhot 010018, China
3
Key Laboratory of Agricultural Ecological Security and Green Development at Universities
of Inner Mongolia Autonomous, Hohhot 010018, China
4
College of Agriculture, Inner Mongolia Agricultural University, Hohhot 010019, China
5
Chifeng Applied Sciences Polytechnic, Chifeng 024000, China
Submission date: 2023-08-22
Final revision date: 2023-11-24
Acceptance date: 2023-12-29
Online publication date: 2024-07-01
Publication date: 2024-07-12
Corresponding author
Meiying Liu
College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, Hohhot 010011, China
Pol. J. Environ. Stud. 2024;33(5):5725-5734
KEYWORDS
TOPICS
ABSTRACT
Wheat (Triticum aestivum L.) is one of the most important staple food crops, and its sustained
production and nutritional security have attracted much attention. Cadmium, a heavy metal toxic
to plants and humans, can enter wheat in various ways. Foliar fertilization can reduce the cadmium
content in plants, but how different fertilizers reduce the cadmium toxicity of plants is still unclear. In
this study, the effects of foliar application of fertilizers on spring wheat yield, cadmium accumulation,
and trace element contents were studied by applying three kinds of fertilizers (multi-element compound
fertilizer, manganese-zinc micro fertilizer, and foliar silicon fertilizer) to spring wheat planted in mildly
and moderately cadmium polluted areas. The results showed that the yield of wheat when fertilized with
multi-element compound fertilizer, manganese-zinc micro fertilizer, and silicon fertilizer increased by
17.1%, 15.7%, and 16.9%, respectively, compared with the control. In addition, all three foliar fertilizers
reduced the cadmium content in wheat grains to below the standard value of food pollutants (≤0.1mg/kg),
and significantly reduced the transport of cadmium from glume to grain, among which manganesezinc
micro fertilizer had the best effect, with a cadmium reduction rate of 41.7%. At the same time,
manganese-zinc micro fertilizer significantly increased the absorption of trace elements in wheat
organs. These results indicated that the foliar application of manganese-zinc micro fertilizer could be an effective way to increase wheat yield, inhibit cadmium accumulation, and increase nutrient absorption
in mildly to moderately cadmium-polluted areas.