On-farm experimentation of precision agriculture for differential seed and fertilizer management in semi-arid rainfed zones

• DOI: 10.1007/s11119-024-10189-y
• Publication Date: 2024-10-09T13:02:34Z
• Authors: M. Videgain; J. A. Martínez-Ca...; A. Vigo-Morancho; M. Vidal; F. J. García-Ramos
• Keywords: Rainfed agriculture; Precision Agriculture

Abstract Introduction This study explores the integration of precision agriculture technologies (PATs) in rainfed cereal production within semi-arid regions. Methods utilizing Veris 3100 sensor for apparent soil electrical conductivity (ECa) mapping, differentiated management zones (MZs) were established experimental plots Valsalada, NE Spain. Site-specific variable dose technology was applied seed and fertilizer applications, tailoring inputs to distinct fertility levels each MZ. Emphasizing nitrogen (N) management, evaluated impact variable-rate applications on crop growth, yield, use efficiency (NUE), economic returns. For 2021/2022 2022/2023 seasons, seeding rates ranged from 350 450 grains/m 2 , basal dosages varied between high low levels. Additionally, total units distributed differently two while maintaining a uniform topdressing across all treatments. Results revealed significant increase yield MZ (higher fertility) compared 1 (lower fertility). NUE demonstrated notable improvement 2, emphasizing effectiveness N applications. Economic returns, calculated as partial net income, showed considerable advantage over 1, resulting negative outcomes low-fertility areas several analyzed scenarios, highlighting financial benefits tailored input management. Conclusion research provides quantitative evidence supporting viability advantages adopting PATs production. The contributes valuable insights into optimizing strategies, enhancing improving returns