Effects of irrigation and fertilization with biochar on the growth, yield, and water/nitrogen use of maize on the Guanzhong Plain, China

被引:14
作者
Zhang, Pengyan [1 ,2 ,3 ]
Liu, Jiangzhou [1 ,2 ,3 ]
Wang, Maodong [1 ,2 ,3 ]
Zhang, Haocheng [1 ,2 ,3 ]
Yang, Nan [1 ,2 ,3 ]
Ma, Jing [1 ,2 ,3 ]
Cai, Huanjie [1 ,2 ,3 ,4 ]
机构
[1] Northwest A&F Univ, Key Lab Agr Soil & Water Engn Arid & Semiarid Area, Minist Educ, Yangling 712100, Shaanxi, Peoples R China
[2] Northwest A&F Univ, Coll Water Resources & Architectural Engn, Yangling 712100, Shaanxi, Peoples R China
[3] Northwest A&F Univ, Inst Water Saving Agr Arid Areas China, Yangling 712100, Shaanxi, Peoples R China
[4] 22 Xinong Rd, Yangling 712100, Shaanxi Provinc, Peoples R China
基金
中国国家自然科学基金;
关键词
Water-nitrogen management; Biochar blending; Water productivity (WP); Nitrogen use efficiencies; WATER-USE EFFICIENCY; ALTERNATE FURROW IRRIGATION; WHEAT TRITICUM-AESTIVUM; NITROGEN USE EFFICIENCY; GRAIN-YIELD; SOIL; PRODUCTIVITY; QUALITY;
D O I
10.1016/j.agwat.2024.108786
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Excessive water and nitrogen inputs in agricultural production can result in resource wastage and environmental pollution. This makes it imperative to identify effective farmland management strategies to ensure sustainable agriculture development, and it remains to be explored whether biochar can be an effective solution. In this study, a 2-year (2021 and 2022) field experiment was conducted with two irrigation levels, W 100 (ET) and W 80 (0.8 ET), and three nitrogen fertilizer levels, N H (270 kg ha -1 ), N M (180 kg ha -1 ), and N L (90 kg ha -1 ), in full combination with biochar (30 t ha -1 ). The N M and N 0 treatments without biochar at both irrigation levels were set as controls. The results of the study showed that there was no significant difference in maize yield between the high and medium N treatments. Further, maximum water productivity (WP), nitrogen agronomic efficiency (NAE), and nitrogen recovery efficiency (NRE) were obtained in N M treatments when water and nitrogen were kept consistent. Deficit irrigation was effective in reducing water consumption and increased WP by 15.54% and 11.06% in 2021 and 2022, respectively. Biochar application increased WP, nitrogen use efficiencies, and significantly increased the yield by 7.02% and 6.46% in 2021 and 2022, respectively. Therefore, the application of biochar can be an effective measure to promote crop growth and resource use. Based on the results of this experiment, an irrigation level of 0.8 ET in combination with N M and biochar application is recommended to ensure the sustainability of agricultural production.
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页数:11
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