Effect of Mechanized Ridge Tillage with Rice-Rape Rotation on Paddy Soil Structure

Lanting Li, Jiangwen Li, Chaofu Wei, Chaoxian Yang and Shouqin Zhong ()
Additional contact information
Lanting Li: College of Resources and Environment, Southwest University, Chongqing 400715, China
Jiangwen Li: College of Resources and Environment, Southwest University, Chongqing 400715, China
Chaofu Wei: College of Resources and Environment, Southwest University, Chongqing 400715, China
Chaoxian Yang: College of Resources and Environment, Southwest University, Chongqing 400715, China
Shouqin Zhong: College of Resources and Environment, Southwest University, Chongqing 400715, China

Agriculture, 2022, vol. 12, issue 12, 1-12

Abstract: Ridge tillage is one of the essential tillage methods in China. It affects the soil structure by altering the soil-water environment. With the rapid development of agricultural mechanization, the mechanized ridge tillage technology that combines modern mechanized agriculture with conservation tillage has become a pertinent agricultural production technology in the hilly regions. However, to date, the effects of mechanized ridge tillage on soil structure have garnered little attention. In this study, a field plot experiment involving the following four treatments: conventional tillage with rice and winter fallow (CK1), conventional tillage with rice-rape rotation (CK2), wide ridge tillage with rice-rape rotation (BT), and narrow ridge tillage with rice-rape rotation (RT) was conducted to study the effects of mechanized ridge tillage with rice-rape rotation on soil aggregate stability and soil porosity. The results indicated that mechanized ridge tillage could reduce the porosity of pores > 30 μm in diameter and increase the porosity of pores < 0.5 μm. Furthermore, mechanized ridge tillage could increase soil aggregate stability; the order of average mass diameter and geometric average diameter was RT > BT > CK2 > CK1. The BT and RT treatments could increase the agglomeration degree of the soil particles, which followed the order of RT > BT > CK2 > CK1. Therefore, mechanized ridge tillage with rice-rape rotation is effective in enhancing soil structure.

Keywords: mechanized ridge tillage; rice-rape rotation; soil aggregates; soil porosity (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2077-0472/12/12/2147/pdf (application/pdf)
https://www.mdpi.com/2077-0472/12/12/2147/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jagris:v:12:y:2022:i:12:p:2147-:d:1002608

Access Statistics for this article

Agriculture is currently edited by Ms. Leda Xuan

More articles in Agriculture from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().