Precision agriculture: A challenge for crop nutrition management

Robert, P. C.; Horst, W. J.; Bürkert, Andreas; Claassen, N.; Flessa, Heiner; Frommer, Wolf B; Goldbach, Heiner E.; Olfs, Hans‐Werner; Römheld, Volker

doi:10.1007/0-306-47624-x_335

Cited by 85 publications

(103 citation statements)

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“…When spatial variability is not taken into account, uniform agronomic management can be both economically and environmentally inefficient (Pierce and Nowak, 1999). Site-specific management (SSM) practices, proposed within the Precision Agriculture (PA) framework, gives farmers the possibility to increase yield, reduce inputs, and minimize environmental impact (Robert, 2002, Robertson et al, 2012Basso et al, 2013). The potential benefits of SSM strategies are greatly dependent on the how accurately such variability can be assessed.…”

Section: Introductionmentioning

confidence: 99%

Environmental and economic benefits of variable rate nitrogen fertilization in a nitrate vulnerable zone

Basso

Dumont

Cammarano

et al. 2016

Science of The Total Environment

146

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Agronomic input and management practices have traditionally been applied uniformly on agricultural fields despite the presence of spatial variability of soil properties and landscape position. When spatial variability is ignored, uniform agronomic management can be both economically and environmentally inefficient. The objectives of this study were to: i) identify optimal N fertilizer rates using an integrated spatio-temporal analysis of yield and site-specific N rate response; ii) test the sensitivity of site specific N management to nitrate leaching in response to different N rates; and iii) demonstrate the environmental benefits of variable rate N fertilizer in a Nitrate Vulnerable Zone. This study was carried out on a 13.6 ha field near the Venice Lagoon, northeast Italy over four years (2005–2008). We utilized a validated crop simulation model to evaluate crop response to different N rates at specific zones in the field based on localized soil and landscape properties under rainfed conditions. The simulated rates were: 50 kg N ha− 1 applied at sowing for the entire study area and increasing fractions, ranging from 150 to 350 kg N ha− 1 applied at V6 stage. Based on the analysis of yield maps from previous harvests and soil electrical resistivity data, three management zones were defined. Two N rates were applied in each of these zones, one suggested by our simulation analysis and the other with uniform N fertilization as normally applied by the producer. N leaching was lower and net revenue was higher in the zones where variable rates of N were applied when compared to uniform N fertilization. This demonstrates the efficacy of using crop models to determine variable rates of N fertilization within a field and the application of variable rate N fertilizer to achieve higher profit and reduce nitrate leaching

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Section: Introductionmentioning

confidence: 99%

Environmental and economic benefits of variable rate nitrogen fertilization in a nitrate vulnerable zone

Basso

Dumont

Cammarano

et al. 2016

Science of The Total Environment

146

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“…Elle peut être utilisée pour de nombreuses actions techniques appliquées aux cultures : gestion des doses de semences, de l'irrigation ou des pesticides. Cependant dans la plupart des cas l'intérêt agroenvironnemental se heurte à la rentabilité économique (Atherton et al, 1999) ou à des freins socio-économiques (Robert, 2002).…”

Section: Ce Travail a éTé Réalisé Au Sein De L'institut For Materials unclassified

Simulation des seuils de rentabilité économique de techniques d’application localisée des pesticides

Bourgain¹,

Llorens²

2013

economierurale

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“…These technologies can be used to optimize the following: fertilizer and pesticide inputs (38)(39)(40)(41)(42); placement of drainage tile and terraces (43); field-edge and landscape-scale conservation practices (44,45); specific crops; rotations or tillage practices (46); and monitor water quality (47). Recent experiments in central Iowa indicate that converting just 10% of a watershed from notillage corn and soybean to strips of herbaceous perennial plants could decrease water runoff by 49% and soil erosion by 96%, while simultaneously increasing native plant, bird, and beneficial insect populations (48).…”

Section: Integrated Landscape Systemssan Alternative Pathwaymentioning

confidence: 99%

Crop Residues: The Rest of the Story

Karlen

Lal

Follett³

et al. 2009

Environ. Sci. Technol.

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In the February 15, 2009 issue of ES&T Strand and Benford argued that oceanic deposition of agricultural crop residues was a viable option for net carbon sequestration (43 [4], 1000−1007). In reviewing the calculations and bringing their experience to bear, Karlen et al. argue in this Viewpoint that crop residue oceanic permanent sequestration (CROPS) as envisioned by Strand and Benford will not work. They further propose alternative possibilities in agricultural methods to achieve a net decrease of CO2 emissions.

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Precision agriculture: A challenge for crop nutrition management

Cited by 85 publications

References 0 publications

Environmental and economic benefits of variable rate nitrogen fertilization in a nitrate vulnerable zone

Environmental and economic benefits of variable rate nitrogen fertilization in a nitrate vulnerable zone

Simulation des seuils de rentabilité économique de techniques d’application localisée des pesticides

Crop Residues: The Rest of the Story

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