ACTA AGRICULTURAE BOREALI-SINICA ›› 2020, Vol. 35 ›› Issue (5): 124-131. doi: 10.7668/hbnxb.20190714

Special Issue: Corn Soil fertilizer

• Resource and Environment·Plant Protection • Previous Articles     Next Articles

Effects of Different Nitrogen Fertilizers on Nitrogen Uptake and Utilization, Soil Nitrogen Supply and Yield of Maize

LIU Xinmeng1, CHEN Geng1, WANG Zhiguo1, HE Yunhan1, LI Wei2, WU Yue1, YANG Deguang1   

  1. 1. College of Agriculture, Northeast Agricultural University, Harbin 150000, China;
    2. College of Resources and Environment, Northeast Agricultural University, Harbin 150000, China
  • Received:2020-07-17 Published:2020-10-28

Abstract: In order to improve the nitrogen use efficiency and corn yield during the whole growth period of maize, it provides a reference for the high-yield nitrogen fertilizer operation model of maize in Heilongjiang Area. Ratio (CK:blank control; T1:50% base fertilizer+50% flowering fertilizer; T2:30% base fertilizer+40% jointing fertilizer+30% flowering fertilizer; T3:20% base fertilizer+60% jointing fertilizer+20% flowering fertilizer; T4:10% basal fertilizer+60% jointing fertilizer+30% flowering fertilizer) on the change of soil inorganic nitrogen content, nitrogen balance, nitrogen accumulation at different growth stages, nitrogen use efficiency and corn yield. The results showed that compared with the control group, T2, T3, and T4 effectively increased the inorganic nitrogen content of the soil plow layer during the filling stage and the mature stage; in terms of nitrogen balance, T2, T3, and T4 were significant difference than the T1 treatment. Reduced the apparent nitrogen loss, of which T4 apparent nitrogen loss was the lowest; compared with T1, reducing the ratio of nitrogen to topdressing significantly increased the nitrogen accumulation during the flowering-maturity period, and the nitrogen accumulation during the filling-maturity period T4 was the highest treatment; compared with T1, T2, T3, and T4 significantly increased the nitrogen absorption and utilization rate, agronomic utilization rate and partial productivity of maize, and the increase ranges was 16.66%-22.47%, 17.80%-35.76%, 4.93%-9.90% (Xianyu 335) and 6.55%-24.46%, 8.23%-36.94%, 2.02%-5.44% (Tiannong 9); reducing the ratio of nitrogen fertilizer to topdressing (T2, T3, T4) yields significantly higher than the traditional nitrogen application treatment T1, T3 had the highest yield, which was 9.90% (Xianyu 335) and 8.86% (Tiannong 9) compared with T1. In summary, under the experimental conditions, when the total nitrogen application rate was 210 kg/ha, 20% basal fertilizer+60% jointing fertilizer+20% flowering fertilizer was the best nitrogen basal dressing ratio.

Key words: Maize, Nitrogen fertilizer ratio, Yield, Nitrogen efficiency

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Cite this article

LIU Xinmeng, CHEN Geng, WANG Zhiguo, HE Yunhan, LI Wei, WU Yue, YANG Deguang. Effects of Different Nitrogen Fertilizers on Nitrogen Uptake and Utilization, Soil Nitrogen Supply and Yield of Maize[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2020, 35(5): 124-131. doi: 10.7668/hbnxb.20190714.

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