Acta Agriculturae Boreali-Sinica ›› 2023, Vol. 38 ›› Issue (3): 108-120. doi: 10.7668/hbnxb.20193260

Special Issue: Corn Soil fertilizer

• Resources & Environment·Plant Protection • Previous Articles     Next Articles

Effects of Nitrogen Fertilizer on Dry Matter Accumulation,Nitrogen Distribution and Yield of Maize under Different Ecological Conditions

YANG Xiujuan1, SUN Jiying1, GAO Julin1, LIU Jian2, MENG Fansheng3, ZHANG Yuezhong4, WEN Xiaoliang5, WANG Zhigang1, YU Xiaofang1, LIU Wenxiang1, WANG Yanqi1   

  1. 1 College of Agronomy,Inner Mongolia Agricultural University,Hohhot 010019,China
    2 Vocational and Technical College,Inner Mongolia Agricultural University,Tumed Right Banner 014109,China
    3 Chifeng Academy of Agriculture and Animal Husbandry Sicence,Chifeng 024031,China
    4 Inner Mongolia Jalaid Banner Agriculture,Animal Husbandry and Science and Technology Development Center,Yinder 137600,China
    5 Wuyuan County Agriculture and Animal;Husbandry Technology Promotion Center,Wuyuan 015100,China
  • Received:2022-12-09 Published:2023-06-28

Abstract:

In order to investigate the effects of nitrogen application rates on the accumulation and distribution characteristics of dry matter and nitrogen,yield and components of maize in the key growth period under different ecological conditions in Inner Mongolia,experiments were carried out in three ecological zones,Tumed Right Banner of Baotou City,Harqin Banner of Songshan District of Chifeng City and Wuyuan County of Bayannur City of Inner Mongolia in 2021.Using maize varieties Xianyu 335,Zhengdan 958 and Jingke 968 as experimental materials,the effects of nitrogen application rate on dry matter and nitrogen accumulation,distribution,transport and yield formation in different organs of maize were studied.The results showed that the interaction between ecological zone and nitrogen fertilizer had a extremely significant effects on dry matter accumulation and distribution,nitrogen accumulation and distribution,yield and its component factors.The proportion of dry matter in various organs of maize varieties in different ecological regions was different,in order of grain>stalk>cob+bract>leaf blade.The difference was mainly manifested in the silking maturity stage. At N2 level,Xianyu 335 had higher dry matter accumulation before flowering and Zhengdan 958 had higher dry matter accumulation after flowering.At the N1 level,the stalk transfer volume,stalk transfer rate and stalk contribution rate of Jingke 968 showed good performance.The nitrogen accumulation of maize varieties with different nitrogen efficiency showed an increasing trend with the advance of growth period.The nitrogen distribution in all organs at maturity stage was grain>leaf blade > cob + bract > stalk.The maize yield in different ecological regions was Harqin Banner>Wuyuan County>Tumed Right Banner.Under the N0 level of Tumed Right Banner,the yield was Xianyu 335>Jingke 968>Zhengdan 958;at the N1 and N2 levels,the yield performance was Zhengdan 958>Jingke 968> Xianyu 335.At the different nitrogen levels in Wuyuan County and Harqin Banner,the yields were Zhengdan 958>Jingke 968>Xianyu 335,and the differences between varieties were significant(P<0.05).In conclusion,the response of nitrogen fertilizer level to Xianyu 335 dry matter accumulation was better in Wuyuan County and Tumed Right Banner.And the response of Jingke 968 and Zhengdan 958 to dry matter accumulation was better in Harqin Banner.Compared with Jingke 968,Xianyu 335 and Zhengdan 958 had better utilization of nitrogen fertilizer at the later growth stage.

Key words: Maize, Ecological conditions, Nitrogen fertilizer, Dry matter accumulation, Yield

Cite this article

YANG Xiujuan, SUN Jiying, GAO Julin, LIU Jian, MENG Fansheng, ZHANG Yuezhong, WEN Xiaoliang, WANG Zhigang, YU Xiaofang, LIU Wenxiang, WANG Yanqi. Effects of Nitrogen Fertilizer on Dry Matter Accumulation,Nitrogen Distribution and Yield of Maize under Different Ecological Conditions[J]. Acta Agriculturae Boreali-Sinica, 2023, 38(3): 108-120. doi: 10.7668/hbnxb.20193260.

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