000 02874nab|a22003737a|4500
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008 20231s2023||||mx |||p|op||||00||0|eng|d
022 _a0002-1962
022 _a1435-0645 (Online)
024 8 _ahttps://doi.org/10.1016/j.compag.2022.106965
040 _aMX-TxCIM
041 _aeng
100 1 _aKinoshita, R.
_92600
245 1 0 _aSoil sensing and machine learning reveal factors affecting maize yield in the mid-Atlantic United States
260 _bAmerican Society of Agronomy :
_bWiley,
_c2022.
_aMadison, WI (USA) :
500 _aPeer review
500 _aEarly View
520 _aIn large-scale arable cropping systems, understanding within-field yield variations and yield-limiting factors are crucial for optimizing resource investments and financial returns, while avoiding adverse environmental effects. Sensing technologies can collect various crop and soil information, but there is a need to assess whether they reveal within-field yield constraints. Spatial data regarding grain yields, proximal soil sensing data, and topographical and soil properties were collected from 26 maize (Zea mays L.) growing fields in the U.S. Mid-Atlantic. Apparent soil electrical conductivity (ECa) collected by an on-the-go sensor (Veris) was an effective method for estimating subsoil textural variation and water holding capacity in the Coastal Plain region, which was also the best predictor of spatial yield pattern when combined with surface pH and topographic wetness index in a Random Forest (RF) model. In the Piedmont Plateau region, proximal soil sensors showed a lower correlation to measured soil properties, while topographical properties (aspect and slope) were important estimators of spatial yield patterns in an RF model. In locations where the RF model failed to predict yield variation, soil compaction appeared to be limiting crop yields. In conclusion, the application of RF models using ECa sensors and topographical properties was effective in revealing within-field yield constraints, especially in the Coastal Plain region. On the Piedmont Plateau, the calibration of proximal sensor information needs to be improved with a particular focus on soil compaction.
546 _aText in English
650 7 _aSoil
_2AGROVOC
_94828
650 7 _aMachine learning
_2AGROVOC
_911127
650 7 _aMaize
_2AGROVOC
_91173
650 7 _aYields
_2AGROVOC
_91313
650 7 _aSensors
_2AGROVOC
_92530
651 7 _2AGROVOC
_929087
_aUnited States of America
700 1 _aTani, M.
_929876
700 1 _aSherpa, S.R.
_8001712516
_gSustainable Agrifood Systems
_928790
700 1 _aGhahramani, A.
_929877
700 1 _avan Es, H.M.
_92607
773 0 _tAgronomy Journal
_gIn press
_dMadison, WI (USA) : American Society of Agronomy : Wiley, 2022.
_x0002-1962
_w444482
942 _cJA
_n0
_2ddc
999 _c66002
_d65994