Continuous measurement method and mathematical model for soil compactness

Huihui Zhao, Tao Cui, Li Yang, Qingyan Hou, Weijun Yan, Xiantao He, Chenlong Fan, Jiaqi Dong, Dongxing Zhang

Abstract


With the continuous improvement of agricultural mechanization, soil compaction becomes more and more serious. Serious soil compaction has been considered as an important negative factor affecting crop growth and yield. The measurement of soil compactness is a common method to measure the soil compaction level. In order to solve the problems of discontinuous sampling, time-consuming and poor real-time soil compactness measurement, a real-time measurement method of soil compactness based on fertilizing shovel was proposed, and the mathematical model between fertilizing shovel arm deformation and soil compactness was established. Based on the interaction mechanism between fertilizing shovel and soil, through the force analysis of fertilizing shovel, it was found that the deformation of fertilizing shovel arm was positively correlated with the sum of soil compactness (SSC) within the range of tillage depth. In order to verify the theoretical analysis results and the detection accuracy of strain gauge, the static bench test was carried out. The test results showed that the strain gauge signal for measuring the deformation of the fertilizing shovel arm was significantly correlated with the applied force. The fitting curve of the linear correlation coefficient was 0.999, the maximum detection error was 0.68 kg, and the detecting accuracy was within the tolerance of 0.57%. Through field orthogonal experiments with four working depths and four compaction levels, a mathematical model of the strain gauge signal and the SSC within the range of tillage depth was established. The experiment showed that compared with the other three depths, the linear correlation coefficient at the tillage depth of 5 cm (TD5) was the lowest, and the slope of the fitting curve was obviously different from the other three depths, so the 5 cm data were excluded when modeling. The model between mean signal value and mean SSC within the range of tillage depth was established based on the data of sampling points with tillage depths of 7.5 cm (TD7.5), 10 cm (TD10), and 12.5 cm (TD12.5). The linear correlation coefficient (R2) of the model between mean signal value and mean SSC which eliminated 5 cm data was 0.980 and the root mean square error (RMSE) was 143.57 kPa. Compared with the linear model before averaging, the R2 was improved by 8.65%, and the RMSE was reduced by 52.39%. This system can realize the real-time and continuous measurement of soil compactness and provide data support for follow-up intelligent agricultural operations.
Keywords: soil compactness measurement, fertilizing shovel, strain gauge, precision agriculture
DOI: 10.25165/j.ijabe.20221505.6707

Citation: Zhao H H, Cui T, Yang L, Hou Q Y, Yan W J, He X T, et al. Continuous measurement method and mathematical model for soil compactness. Int J Agric & Biol Eng, 2022; 15(5): 196–204.

Keywords


soil compactness measurement, fertilizing shovel, strain gauge, precision agriculture

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References


Li R S, Lin C H, Gao H W, Chen C L, Yuan Y L. The research of soil compaction caused by tractor. Transaction of the CSAM, 2002; 33(1): 126–129 (in Chinese)

Keller T, Defossez P, Weisskopf P. Soilflex. A model for prediction of soil stresses and soil compaction due to agricultural field traffic including a synthesis of analytical approaches. Soil and Tillage Research, 2007; 93(2): 391–411.

Li R S, Shi Y, Chi S Y, Su Y S. Soil compaction and tillage energy consumption caused by tires of agricultural machines. Transactions of the CSAM, 1999; 30(2): 13–17. (in Chinese)

Batey T, Mckenzie D C. Soil compaction: Identification directly in the field. Soil Use Management, 2006; 22(2): 123–131.

Chen G H, Weil R R. Root growth and yield of maize as affected by soil compaction and cover crops. Soil & Tillage Research, 2011; 117: 17–27.

Adamchuk V I, Hummel J W, Morgan M T, Upadhyaya S K. On-the-go soil sensors for precision agriculture. Computers and Electronics in Agriculture, 2004; 44(1): 71–91.

Topakci M, Unal I, Canakci M, Celik H K, Karayel D. Design of a horizontal penetrometer for measuring on-the-go soil resistance. Sensors, 2010; 10(10): 9337–9348.

Canarache A. Factors and indices regarding excessive compactness of agricultural soils. Soil and Tillage Research, 1991; 19(2-3): 145–164.

S313.3. Soil cone penetrometer. American Society of Agricultural and Biological Engineers (ASABE) standards, 2006.

Luo X W, Zang Y, Zhou Z Y. Research progress in farming information acquisition technique for precision agriculture. Transactions of the CSAE,

; 22(1): 167–173. ( in Chinese)

Sun Y, Ma D, Lammers P S, Schmittmann O, Rose M. On-the-go measurement of soil water content and mechanical resistance by a combined horizontal penetrometer. Soil and Tillage Research, 2006; 86(2): 209–217.

Hemmat A, Adamchuk V I. Sensor systems for measuring soil compaction: review and analysis. Computers and Electronics in Agriculture, 2008; 63 89–103.

Alihamsyah T, Humphries E G. On-the-go soil mechanical impedance measurements. In: Proceedings of the 1991 symposium, ASAE, 1991; pp.300–306.

Sirjacobs D, Hanquet B, Lebeau R, Destain M F. On-line soil mechanical resistance mapping and correlation with soil physical properties for precision agriculture. Soil and Tillage Research, 2001; 64: 231–242.

Spectrum Technologies, Inc. Available: https://www.specmeters.com/ brands/field-scout/sc900/. Accessed on [2021-04-23].

Zhejiang Top Yunnong Technology Co., Ltd. Available: https://www.foodjx.com/st199351/product_5825925.html. Accessed on [2021-04-23].

Yang C. Research on soil cone index of farmland design of measuring device. Master dissertation. Harbin: Northeast Agricultural University, 2019; 70p. (in Chinese)

Alimardani R. Design and construction of a tractor mounted penetrometer. Journal of Agriculture & Social Sciences, 2005; 1(4): 297–300.

Arriaga F J, Lowery B, Reinert D J, McSweeney K. Cone penetrometers as a tool for distinguishing soil profiles and mapping soil erosion. In: Hartemink A, Minasny B (Ed.). Digital Soil Morphometrics. Progress in Soil Science, Springer, 2016; pp.401–410. doi: 10.1007/ 978-3-319-28295-4_25.

Meng F J, Ma D K, Sun Y R. Penetrometer with ball screw transmission. Transactions of the CSAM, 2009; 40(5): 52–55. (in Chinese)

Li Y D. Experimental study on soil penetration resistance characteristics and design of testing device. Master dissertation. Harbin: Northeast Agricultural University, 2017; 73p. (in Chinese)

Naderi-Boldaji M, Alamooti M Y, Sharifi A, Jamshidi B, Abbasi F, Minaee S. A combined sensor for on-the-go measurement of soil water content and mechanical resistance: Moisture sensor design and calibration. In: International Conference on Agricultural Engineering-AgEng, 2010; pp.163–170.

Hemmat A, Adamchuk V I, Jasa P. Use of an instrumented disc coulter for mapping soil mechanical resistance. Soil and Tillage Research, 2008; 98(2): 150–163.

Hemmat A, Khorsandy A, Masumi A A, Adamchuk V I. Influence of failure mode induced by a horizontally operated single-tip penetrometer on measured soil resistance. Soil & Tillage Research, 2009; 105(1): 49–54.

Alihamsyah T, Humphries E G, Bowers C G. A technique for horizontal measurement of soil mechanical impedance. Transactions of the ASAE, 1990; 33(1): 73–77.

Sun Y, Lammers P S, Ma D. Evaluation of a combined penetrometer for simultaneous measurement of penetration resistance and soil water content. Journal of Plant Nutrition and Soil Science, 2004; 167(6): 745–751.

Sun Y R, Lammers P S, Ma D K, Lin J H, Zeng Q M. Determining soil physical properties by multi-sensor technique. Sensors and Actuators A: Physical, 2008; 147(1): 352–357.

Liu J, Ma D K, Zeng Q M, Sun Y R. A real-time measuring system of soil compaction. Journal of China Agricultural University, 2007; 6: 71–74, 92. (in Chinese)

Zhao X, Luo X W, Wells L G. Test of a continuously measure soil resistance system on farmland. Journal of Agricultural Mechanization Research, 2012; 34(8): 111–115. ( in Chinese)

Jia H L, Li Y, Qi J T, Fan X H, Wang W J, Guo M Z. Design and test of soil compaction acquisition system for sowing line surface based on ZigBee. Transactions of the CSAM, 2015; 46(12): 39–46, 61. (in Chinese)

Wang Y X, Liang Z J, Cui T, Zhang D X, Qu Z, Yang L. Design and experiment of layered fertilization device for corn. Transactions of the CSAM, 2016; 47(S1): 163–169. (in Chinese)

Xue S P, Zhu R X, Lei S W, Xue H L. Development of the combined layered fertilizing-seeding ditcher. Journal of Northwest A&F University: Natural Science Edition, 2008; 36(8): 223–228. (in Chinese)

ASAE S313.3 FEB04. Soil cone penetrometer, 1998.

Goutal N, Keller T, Défossez P, Ranger J. Soil compaction due to heavy forest traffic: measurements and simulations using an analytical soil compaction model. Annals of Forest Science, 2013; 70(5): 545–556.

Arvidsson J, Westlin H, Keller T, Gilbertssonb M. Rubber track systems for conventional tractors-effects on soil compaction and traction. Soil and Tillage Research, 2011; 117: 103–109.

Zhao Z J, Han C J, Guo H, Zhang J, Huang Q H, Yang W Z. Continuous measurement system design of soil mechanical resistance based on arduino. Agricultural Engineering, 2015; 5(4): 55–57, 62.

Mouazen A M, Anthonis J, Saeys W, Ramon H. An automatic depth control system for on line measurement of spatial variation in soil compaction, part 1: Sensor design for measurement of frame height variation from soil surface. Biosystems Engineering, 2004; 89(2): 139–150.




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