The Effect of Different Application Rates of Foliar Nitrogen Fertilizer on the Accumulation, Distribution, and Transport of Dry Matter in Maize
Journal Title: Journal of Shenyang Agricultural University - Year 2025, Vol 56, Issue 1
Abstract
[Objective]To investigate the scientific issues of different foliar nitrogen fertilizer application treatments on the accumulation, distribution, and transport of dry matter in maize. [Methods]Lihe 1 was selected as the research object. Non fertilization treatment (CK), conventional root fertilization treatment (CF), foliar nitrogen reduction treatment (LF1), foliar conventional nitrogen application treatment (LF2), and foliar nitrogen increase treatment (LF3) were set up. Random block design was used to study the accumulation, distribution, and transport of dry matter in maize. [Results]In 2021, LF1 had the highest single plant dry matter accumulation, which was 23.04% and 1.47% higher than CK and CF. In 2022, LF1 also had the highest single plant dry matter accumulation, which was 2.19% and 9.91% higher than LF2 and LF3, respectively. During the jointing stage, the distribution of dry matter is mainly dominated by leaves, while during the large bell mouth stage and tasseling and silk emergence stage, it is mainly dominated by stems. After the tasseling and silk emergence stage, the proportion of dry matter distribution in panicles and grains gradually increases, reaching its maximum at maturity. [Conclusion]The dry matter accumulation of grains under different foliar nitrogen fertilizer application treatments was significantly higher than that of CK, with the LF1 treatment having the highest proportion of dry matter accumulation distribution in grains.
Authors and Affiliations
ZHANG Xuting, ZHANG Hailong, ZHANG Jiaqian, LIU Ya'nan, ZHANG Dejian, FU Zengjuan,XUE Chunlei, ZHANG Sainan, SUN Fengcheng
Keywords
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- EP ID EP764955
- DOI 10.3969/j.issn.1000-1700.2025.01.002
- Views 4
- Downloads 0
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