000145636 001__ 145636
000145636 005__ 20241114112316.0
000145636 0247_ $$2doi$$a10.1007/s11119-024-10189-y
000145636 0248_ $$2sideral$$a140514
000145636 037__ $$aART-2024-140514
000145636 041__ $$aeng
000145636 100__ $$0(orcid)0000-0002-3630-7931$$aVidegain, M.$$uUniversidad de Zaragoza
000145636 245__ $$aOn-farm experimentation of precision agriculture for differential seed and fertilizer management in semi-arid rainfed zones
000145636 260__ $$c2024
000145636 5060_ $$aAccess copy available to the general public$$fUnrestricted
000145636 5203_ $$aIntroduction
This study explores the integration of precision agriculture technologies (PATs) in rainfed cereal production within semi-arid regions.
Methods
utilizing the Veris 3100 sensor for apparent soil electrical conductivity (ECa) mapping, differentiated management zones (MZs) were established in experimental plots in Valsalada, NE Spain. Site-specific variable dose technology was applied for seed and fertilizer applications, tailoring inputs to distinct fertility levels within each MZ. Emphasizing nitrogen (N) management, the study evaluated the impact of variable-rate applications on crop growth, yield, nitrogen use efficiency (NUE), and economic returns. For the 2021/2022 and 2022/2023 seasons, seeding rates ranged from 350 to 450 grains/m2, and basal fertilizer dosages varied between high and low levels. Additionally, the total nitrogen units were distributed differently between the two seasons, while maintaining a uniform topdressing fertilizer dose across all treatments.
Results
Results revealed a significant increase in yield in MZ 2 (higher fertility) compared to MZ 1 (lower fertility). NUE demonstrated notable improvement in MZ 2, emphasizing the effectiveness of variable-rate N applications. Economic returns, calculated as partial net income, showed a considerable advantage in MZ 2 over MZ 1, resulting in negative outcomes for low-fertility areas in several of the analyzed scenarios, and highlighting the financial benefits of tailored input management.
Conclusion
This research provides quantitative evidence supporting the viability and advantages of adopting PATs in rainfed cereal production. The study contributes valuable insights into optimizing input strategies, enhancing N management, and improving economic returns in semi-arid regions.
000145636 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000145636 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000145636 700__ $$aMartínez-Casasnovas, J. A.
000145636 700__ $$aVigo-Morancho, A.$$uUniversidad de Zaragoza
000145636 700__ $$aVidal, M.
000145636 700__ $$0(orcid)0000-0002-0227-1934$$aGarcía-Ramos, F. J.$$uUniversidad de Zaragoza
000145636 7102_ $$15011$$2500$$aUniversidad de Zaragoza$$bDpto. CC.Agrar.y Medio Natural$$cArea Ingeniería Agroforestal
000145636 773__ $$g(2024), [22 pp.]$$pPRECISION AGRICULTURE$$tPRECISION AGRICULTURE$$x1385-2256
000145636 8564_ $$s2620300$$uhttps://zaguan.unizar.es/record/145636/files/texto_completo.pdf$$yVersión publicada
000145636 8564_ $$s1363289$$uhttps://zaguan.unizar.es/record/145636/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000145636 909CO $$ooai:zaguan.unizar.es:145636$$particulos$$pdriver
000145636 951__ $$a2024-11-14-10:18:25
000145636 980__ $$aARTICLE