Council for Agricultural Research and Economics, Agricultural Engineering Research Unit (CREA-ING), Via della Pascolare 16, 00015 Monterotondo, Italy
Council for Agricultural Research and Economics, Research Centre for Soil-Plant System (CREA-RPS), Via della Navicella 2-4, 00184 Roma, Italy
: Received: 2 August 2016 / Approved: 2 August 2016 / Online: 2 August 2016 (12:50:33 CEST)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
How to cite:
Servadio, P.; Bergonzoli, S.; Beni, C. Soil Tillage Systems and Wheat Yield in Climate Change Scenarios. Preprints2016, 2016080018 (doi: 10.20944/preprints201608.0018.v1).
Servadio, P.; Bergonzoli, S.; Beni, C. Soil Tillage Systems and Wheat Yield in Climate Change Scenarios. Preprints 2016, 2016080018 (doi: 10.20944/preprints201608.0018.v1).
In this study the effects of three different main preparatory tillage operations [ploughing at 0.4 m (P40) and 0.20 m (P20) depth and minimum tillage at 0.20 m depth (MT) each of them carried out at two different soil water contents (WC) [low, 58% (LH) and high, 80% (HH) of field capacity] were investigated. The results obtained in this research show high values of soil strength in term of Penetration resistance (CI) and shear strength (SS) particularly in deeper soil layers at lower water content. Fossil-fuel energy requirements both for P40 LH and P20 LH were 25 and 35% higher with respect to the HH treatments and tractor slip were very high (P40 LH = 32.4%) with respect to the P40 HH treatment (16%). Therefore soil water content had significantly influenced tractor performance during soil ploughing, particularly at 0.40 m depth while MT was not influenced at all. A significant correlation between grain yield and soil penetration resistance was found highlighting how soil strength may be good indicator of its productivity. Obtained results during these field tests allowed considering MT and P20 treatments more suitable for this type of soil in climate change scenarios.
soil tillage; tractors; soil water content; physical soil properties; GPS; energy requirement; CO2 emission