Acta Agriculturae Boreali-Sinica ›› 2026, Vol. 41 ›› Issue (2): 161-169. doi: 10.7668/hbnxb.20195986

Special Issue: Soil fertilizer

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

Effect of Straw Returning and Nitrogen Fertilizer Reduction on Chlorophyll Content,Dry Matter Accumulation and Yield of Mung Beans

FAN Yafang1, LIU Jian2, CHEN Wenjin1, HE Xiaoyong1, CHENG Yuchen1, ZHANG Sainan3, ZHAO Xiaoyu3, ZHANG Bizhou4   

  1. 1 Plant Protection Institute, Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences, Hohhot 010031, China
    2 Vocational and Technical College of Inner Mongolia Agricultural University, Salaqi 014109, China
    3 Maize Research Institute, Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences, Hohhot 010031, China
    4 Special Crops Institute, Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences, Hohhot 010031, China
  • Received:2025-04-02 Published:2026-05-06

Abstract:

Clarify the effect of straw returning and nitrogen fertilizer reduction on chlorophyll content,dry matter accumulation and yield of mung beans in Inner Mongolia central region,and to provide reference for the rational utilization of straw resources and scientific nitrogen application in mung bean cultivation.It used Kelyu 1 mung bean as the material and two factor split zone design was used.Two cultivation measures were set up:straw returning(ST)and no straw returning(NST)and four nitrogen fertilizer application levels were set up:0(N0),45(N45),90(N90),135(N135)kg/ha,for a total of eight treatments.To analyze the effects of different treatments at different stages on mung bean on chlorophyll content,dry matter weight of aboveground organs,main agronomic traits at maturity stage,yield and its components.The results showed that the chlorophyll content,dry matter weight of aboveground organs,main agronomic traits,yield and its constituent factors of mung beans treated differently at different stages were as follows:ST+N90>ST+N135>ST+N45>NST+N90>NST+N135>NST+N45>ST+N0>NST+N0.Compared with the NST+N0 treatment,ST+N90 treatment had the highest chlorophyll content at the podding stage,leaf dry matter weight at the flowering stage,stem dry matter weight at the maturity stage,pod dry matter weight at the podding stage,grain dry matter weight at the maturity stage,number of main stem branches,number of main stem nodes,pod length,pod width,number of pods per plant,number of seeds per pod,100-seed weight,and yield of mung beans,with increases of 24.33%,30.56%,26.83%,28.58%,43.85%,6.13%,7.03%,5.62%,16.35%,13.22%,4.45%,8.90% and 23.46%.The straw returning with 90 kg/ha nitrogen fertilizer application treatment can increase the mung beans chlorophyll content,promote the accumulation of aboveground organs dry matter weight,and improve the yield.It is an ideal measure in mung bean cultivation.

Key words: Mung bean, Straw returning, Nitrogen fertilizer reduction, Chlorophyll content, Dry matter weight, Yield

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Cite this article

FAN Yafang, LIU Jian, CHEN Wenjin, HE Xiaoyong, CHENG Yuchen, ZHANG Sainan, ZHAO Xiaoyu, ZHANG Bizhou. Effect of Straw Returning and Nitrogen Fertilizer Reduction on Chlorophyll Content,Dry Matter Accumulation and Yield of Mung Beans[J]. Acta Agriculturae Boreali-Sinica, 2026, 41(2): 161-169. doi: 10.7668/hbnxb.20195986.

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