Medium-Term No-Tillage, Additional Compaction, and Chiseling as Affecting Clayey Subtropical Soil Physical Properties and Yield of Corn, Soybean and Wheat Crops

Luis Eduardo Akiyoshi Sanches Suzuki (), Dalvan José Reinert, Marlene Cristina Alves and José Miguel Reichert
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Luis Eduardo Akiyoshi Sanches Suzuki: Center of Technological Development, Federal University of Pelotas, Pelotas 96010-610, RS, Brazil
Dalvan José Reinert: Soils Department, Federal University of Santa Maria, Santa Maria 97105-9000, RS, Brazil
Marlene Cristina Alves: Faculty of Engineering, São Paulo State University, Ilha Solteira 15385-000, SP, Brazil
José Miguel Reichert: Soils Department, Federal University of Santa Maria, Santa Maria 97105-9000, RS, Brazil

Sustainability, 2022, vol. 14, issue 15, 1-18

Abstract: Understanding the soil-plant relationship is important to determine critical limits of soil properties that influence crop growth and yield. The objectives were to quantify the influence of soil compaction levels on physical properties and crop growth and yield in a clayey Oxisol. An experiment was performed having in the main plots, levels of soil compaction (NT: no-tillage during six years, NTC: NT + four passes of a 10 Mg machine in the agricultural year 2003/2004, and Chisel: NT + chiseling and harrowing in the agricultural year 2003/2004), and in the sub-plots, the summer crops soybean and corn, and wheat in the winter season. We measured soil physical and mechanical properties, along with yield of corn, soybean and wheat, and root growth of that last two crops. After four passes of a 10 Mg machine, the soil resistance to penetration increased to a 0.12 m depth, while Chisel disrupted the 0–0.20 m soil layer, with the effects persisting for at least nine months. Soil compaction in no-tillage concentrated in the 0.05–0.15 m layer. Corn yield was similar among the treatments, soybean yield was highest in NT, and the highest yield of wheat was in the sequence with soybean under NT.

Keywords: no-tillage; chiseling; additional compaction; precompression stress; compression index; cost of soil compaction; critical limits of soil properties (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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