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Journal of Desert Research ›› 2025, Vol. 45 ›› Issue (4): 109-117.DOI: 10.7522/j.issn.1000-694X.2025.00103

Previous Articles    

The influence of fertilization on the sandy farmland productivity and stability of corn in semi-arid areas

Rui Zhang1,2,3,4(), Yalin Wu1,2,4, Yulin Li1,2,4, Jie Lian1,2,4   

  1. 1.State Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands /, Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
    2.Naiman Desertification Research Station /, Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
    3.Urat Desert-Grassland Research Station, Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
    4.University of Chinese Academy of Sciences,Beijing 100049,China
  • Received:2025-06-03 Revised:2025-07-10 Online:2025-07-20 Published:2025-08-18

Abstract:

To explore the effect of fertilization on high and stable yields in sandy corn farmland in semi-arid areas and optimize the fertilization regime, six treatments, namely no fertilization (CK), straw returning to the field (ST), chemical fertilizer (CH), farmyard manure (FA), decrease 50% of chemical fertilizer and farmyard manure (CF_2), and decrease 50% of chemical fertilizer (CH_2), were positioned and set up in the sandy farmland ecosystem. The results showed that: (1) Chemical fertilizer, farmyard manure and combination of chemical fertilizer and farmyard manure increased the plant height, stem diameter, ear height, ear length, ear diameter, row number of grains and 100 grains weight of corn. The combination of chemical fertilizer and farmyard manure had a stronger promoting effect on plant height and ear height, while the single application of chemical fertilizer had a more obvious promoting effect on ear length and 100 grains weight. (2) Chemical fertilizer, farmyard manure and their combination increased the aboveground biomass and total biomass by 68.2%-196.3% and 54.9%-163.0%, respectively, compared with CK and ST. Chemical fertilizer, farmyard manure and their combination increased the root biomass by 108.0%-126.9% compared with CK. The chemical fertilizer only and the combination of chemical fertilizer and farmyard manure increased the grain yield by 29.9%-292.6% compared with CK, ST and FA. Fertilization has a significant impact on the temporal stability of aboveground biomass and total biomass. (3) Plant traits, ear characteristics have a strong positive correlation with biomass/grain yield and their stability. Comprehensive analysis suggests that halving the application of chemical fertilizer and farmyard manure can significantly enhance the productivity of corn in sandy farmland.

Key words: fertilization, plant traits, yield, stability, sandy land

CLC Number: