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022 _a2045-2322
024 8 _ahttps://doi.org/10.1038/s41598-021-84191-z
040 _aMX-TxCIM
041 _aeng
100 0 _aZhe Liu
_916190
245 1 0 _aTillage effects on soil properties and crop yield after land reclamation
260 _aLondon (United Kingdom) :
_bNature Publishing Group,
_c2021.
500 _aPeer review
500 _aOpen Access
520 _aTillage treatments have an important effect on soil microstructure characteristics, water thermal properties and nutrients, but little is known in the newly reclaimed cultivated land. For the reason, a long-term field study was to evaluate the tillage effects on soil physicochemical properties and crop yield in newly reclaimed cultivated land via the macroscopic and microscopic analysis. Three tillage treatments were tested: continuous conventional moldboard plow tillage (CT), sub-soiling/moldboard-tillage/sub-soiling tillage (ST) and no-tillage/sub-soiling/no-tillage (NT). Under CT, the microstructure was dominated by weakly separated plates structure and showed highest bulk density (BD) (1.49 g cm−3) and lowest soil organic matter (SOM) (3.68 g kg−1). In addition, CT reduced the capacity of soil moisture retention and temperature maintenance, resulting in aggregate structure deterioration and fragility. Unlike CT, the soil was characterized by moderately separated granular structure and highly separated aggregate structure under conservation tillage practice of ST and NT. NT was associated with the highest soil moisture content (20.42%), highest quantity of macroaggregates (> 0.25 mm) by wet-sieving (34.07%), and highest SOM (6.48 g kg−1) in the surface layer. Besides, NT was better able to regulate soil temperature and improved the values of geometric mean diameter. Under NT and ST, a stable soil structure with compound aggregates and pores was formed, and the maize yield was increased by 12.9% and 14.9% compared with CT, up to 8512.6 kg ha−1 and 8740.9 kg ha−1, respectively. These results demonstrated the positive effects of NT and ST on soil quality and crop yield in newly reclaimed cultivated land.
546 _aText in English
650 0 _aTillage
_gAGROVOC
_97651
650 7 _aSoil properties
_2AGROVOC
_91269
650 7 _aCrop yield
_gAGROVOC
_2
_91066
650 7 _aReclamation
_2AGROVOC
_922619
650 7 _aAgroecology
_2AGROVOC
_93995
700 0 _aShiliu Cao
_922620
700 0 _aZenghui Sun
_922621
700 0 _aHuanyuan Wang
_922622
700 0 _aShaodong Qu
_922623
700 0 _aNa Lei
_922624
700 0 _aJing He
_922625
700 0 _aQiguang Dong
_922626
773 0 _gv. 11, art. 4611
_dLondon (United Kingdom) : Nature Publishing Group, 2021.
_x2045-2322
_tNature Scientific Reports
_wa58025
856 4 _yClick here to access online
_uhttps://doi.org/10.1038/s41598-021-84191-z
942 _cJA
_n0
_2ddc