Journal of Northern Agriculture ›› 2023, Vol. 51 ›› Issue (4): 56-63.doi: 10.12190/j.issn.2096-1197.2023.04.07

• Soil and fertilizer · Water-saving irrigation • Previous Articles     Next Articles

Effects of drip irrigation on water use and yield of quinoa in the north foot of Yinshan Mountains in Inner Mongolia

LIU Xiaoyue1, REN Yongfeng1, ZHAO Zhiyuan2, ZHANG Na2, MIAO Xinyue3, ZHANG Shu4, HAN Yunfei1, ZHANG Peng1, ZHAO Peiyi1   

  1. 1. Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences,Hohhot 010031,China
    2. Inner Mongolia Agricultural and Animal Husbandry Technology Promotion Center,Hohhot 010013,China
    3. Northeast Agricultural University,Harbin 150006,China
    4. Inner Mongolia University,Hohhot 010020,China
  • Received:2023-04-14 Online:2023-08-20 Published:2023-11-07

Abstract:

【Objective】To explore the impact of drip irrigation on water use and yield of quinoa in the north foot of Yinshan Mountains in Inner Mongolia to clarify the differences in water temporal and spatial distribution characteristics in the field and yield changes of quinoa under different drip irrigation treatments.【Methods】In Wuchuan Dry Farming Experimental Station of Inner Mongolia,six treatments were set up for the quinoa field drip irrigation experiment:irrigation during seedling and branching stages(W1),irrigation during seedling and earing stages(W2),irrigation during seedling and filling stages(W3),irrigation during seedling,branching,and earing stages(W4),irrigation during seedling,branching,and filling stages(W5),and irrigation during seedling,earing,and filling stages(W6). The soil moisture status of 0-100 cm soil layers,as well as the changes in dry matter accumulation and grain yield of quinoa under different treatments were compared and analyzed.【Results】Throughout the whole growth period of quinoa,the soil moisture content in the 0-100 cm soil layers of all the treatments showed a trend of first increase and then decrease with the increase of soil depth. And the soil moisture content in the 40-70 cm soil layers had significant changes among the different drip irrigation treatments. The dry matter accumulation of quinoa in all the drip irrigation treatments showed an upward trend with the progress of growth periods,among which the dry matter accumulation of quinoa in W5 treatment was significantly higher than that in other irrigation treatments. The grain yield and water use efficiency of W5 treatment were the highest,at 2 225.56 kg/hm2 and 6.49 kg/(mm·hm2),respectively.【Conclusion】At the north foot of Yinshan Mountains in Inner Mongolia,drip irrigation at the seedling stage(450 m3/hm2),branching stage(450 m3/hm2),and filling stage(450 m3/hm2) had the best yield and water use efficiency of quinoa,could be used as a water-saving,high-yield,and high-efficiency drip irrigation regime for quinoa in the area.

Key words: Quinoa, Drip irrigation, Water consumption, Water use efficiency, Yield, North foot of Yinshan Mountains

CLC Number: 

  • S519