Compaction and Subsoiling Effects on Corn Growth and Soil Bulk Density

Abu-Hamdeh, Nidal H.

doi:10.2136/sssaj2003.1213

Cited by 94 publications

(59 citation statements)

References 12 publications

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“…Soil bulk density (SBD, g cm −3 ) is a basic but extremely important soil physical property that is commonly used to assess soil compaction. SBD is an effective indicator of soil quality and site productivity (Suuster et al 2011), as it is a limiting factor in root development and crop growth (Abu-Hamdeh 2003;Morell et al 2011;Tracy et al 2013) and in soil water movement and retention (Benites et al 2007;Huang et al 2011;Hieke and Schmidt 2013). In addition, SBD is an important parameter in predictive and descriptive models, for example, models that indicate soil characteristics, calculate carbon stocks, and estimate the flow of water and the transport of solutes within the vadose zone (De Vos et al 2005;Suuster et al 2011;Brahim et al 2012;Throop et al 2012;Wang et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Improve the prediction of soil bulk density by cokriging with predicted soil water content as auxiliary variable

et al. 2015

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Purpose Soil bulk density (SBD) is a key soil physical property affecting the transport of water and solutes, which is essential to estimating soil carbon and nutrient reserves. However, it is considered to be time consuming, labor intensive, and expensive to obtain in situ SBD data. Therefore, it is important to estimate SBD at an acceptable level of accuracy using auxiliary variables with limited fieldmeasured data. Materials and methods The Heqing Dam agriculture area in Yunnan Province, Southwest China, was selected as the study area. Sampling points of 114 were obtained based on a uniform 1 km×1 km grid methodology, which were broken into training data and test data using ArcGIS software. The training data (91 soil samples) were used for prediction and the test data (23 soil samples) were used for validation. Predicted soil water content (SWC) was estimated using kriging with high accuracy. The predicted SWC was used as auxiliary data to improve the prediction of SBD by cokriging. The correlation coefficient (r) between field-measured and predicted values, mean error (MAE), and root mean square error (RMSE) were used to validate the performance of the geostatistics. Results and discussion The SBD was highly correlated with measured (r=−0.73, p<0.01) and predicted SWC (r=−0.73, p<0.01). The two parameters MAE and RMSE showed an improvement after introducing the predicted SWC. The MAE and RMSE decreased from 0.111 and 0.032 g cm −3 by kriging to 0.070 and 0.018 g cm −3 by cokriging with predicted SWC, respectively. The r value increased from 0.449 by kriging to 0.852 by cokriging. Compared with kriging, the application of cokriging with predicted SWC resulted in a relative improvement of 45.5 %. Conclusions This study demonstrates that predicted SWC used as auxiliary data can improve the prediction of SBD. Therefore, when the predicted data have been demonstrated to be of high accuracy and are highly correlated with the dependent variable, they have the potential to be a good source of auxiliary data for cokriging.

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Section: Introductionmentioning

confidence: 99%

Improve the prediction of soil bulk density by cokriging with predicted soil water content as auxiliary variable

et al. 2015

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“…) throughout the world has resulted in increased soil compaction on agricultural land affecting crop production (Abu-Hamdeh, 2003). Flowers and Lal (1998) reported that the depth of compaction varies from 10 to 60 cm due to vehicular traffic over the field, but the ill effects on crop growth are more pronounced when compact layer formed just below the plough layer.…”

Section: Introductionmentioning

confidence: 99%

Phenology and thermal indices of maize (Zea mays L.) influenced by subsoil compaction and nitrogen fertilization under semi-arid irrigated conditions

Singh

Hadda

2014

JANS

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Abstract:The magnitude of yield reduction due to soil compaction is variable and depends on the soil type, fertility status and other soil and environmental factors. The present investigation was carried out at the research farm, Department of Soil Science, Punjab Agricultural University, Ludhiana. The experiment was conducted to evaluate the effect of different levels of subsoil compaction and nitrogen fertilization on maize phenology, yield and heat use efficiency ) treatment during the year 2012 and 2013, respectively. The tasseling and silking stage was delayed, while physiological maturity was advanced under C 2 subsoil compaction treatment than that in C 0 treatment. The N 2 treatment improved the yield by 14.9 and 13.9 % and HUE by 15.2 and 14.3 % than that in N 0 treatment during the year 2012 and 2013, respectively. Maize took more days to reach physiological maturity under N 2 treatment as compared to N 0 treatment. Phenothermal index (PTI) showed that crop reached different stages earlier under C 1 and C 2 than that of C 0. The data emphasized the need to take care of soil strength and soil temperature related parameters along with weather conditions for better yield prediction using thermal time.

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“…In last decades the weight of agricultural machines has increased and consequently the soil compaction has increased due to the use of such machines under wet soil conditions (Abu-Hamdeh 2003). In wet and cold springs, such compacted soils may be waterlogged and plants show visual symptoms of water logging.…”

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Water logging may inhibit plant growth primarily by nutrient deficiency rather than nutrient toxicity

Steffens¹,

Hütsch²,

Eschholz³

et al. 2005

Plant Soil Environ.

118

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The aim of our experiments was to investigate whether nutrient deficiency or toxicity is the cause for growth inhibition of wheat and barley in waterlogged soils. Experiments using two soils (top and subsoil) differing largely in various characteristics revealed a growth inhibition of wheat and barley in the case of subsoil due to water logging, without Fe or Mn toxicity. Water culture experiments with anaerobic (N 2 ) and aerobic aeration confirmed that oxygen deficiency did not induce nutrient toxicity (Fe, Mn) but caused sub-optimum nutrient supply (N, P, K, Mn, Cu, Zn) of wheat and barley plants. In a split-root water culture experiment with barley, cultivating half of the root system in varying combinations of aerobic/anaerobic and with/without K supply, it was shown that sufficient K uptake occurred only when K and oxygen were applied in the same root compartment. We suggest that due to O 2 deficiency in the root medium, synthesis of ATP may be inhibited leading thus to a decrease in nutrient uptake. Nutrient deficiency rather than toxicity appears to be the major cause for the poor plant growth in waterlogged soils.

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Compaction and Subsoiling Effects on Corn Growth and Soil Bulk Density

Cited by 94 publications

References 12 publications

Improve the prediction of soil bulk density by cokriging with predicted soil water content as auxiliary variable

Improve the prediction of soil bulk density by cokriging with predicted soil water content as auxiliary variable

Phenology and thermal indices of maize (Zea mays L.) influenced by subsoil compaction and nitrogen fertilization under semi-arid irrigated conditions

Water logging may inhibit plant growth primarily by nutrient deficiency rather than nutrient toxicity

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