Long-term effects of wheat continuous cropping vs wheat in crop rotation on carbon content and mineralisation, aggregate stability, biological activity, and crop yield

被引：2

作者：

Holatko, Jiri ^{[1
,2
]}

Brtnicky, Martin ^{[1
]}

Baltazar, Tivadar ^{[1
]}

Smutny, Vladimir ^{[3
]}

Frouz, Jan ^{[4
,5
]}

Kintl, Antonin ^{[1
,6
]}

Jaskulska, Iwona ^{[7
]}

Ryant, Pavel ^{[1
]}

Radziemska, Maja ^{[1
,8
]}

Latal, Oldrich ^{[1
,2
]}

Malicek, Ondrej ^{[1
]}

Dryslova, Tamara ^{[3
]}

Hammerschmiedt, Tereza ^{[1
]}

机构：

[1] Mendel Univ Brno, Fac Agrisci, Dept Agrochem Soil Sci Microbiol & Plant Nutr, Zemedelska 1, Brno 60200, Czech Republic

[2] Agrovyzkum Rapotin Ltd, Vyzkumniku 267, Rapotin 78813, Czech Republic

[3] Mendel Univ Brno, Fac AgriSci, Dept Agrosyst & Bioclimatol, Zemedelska 1, Brno 61300, Czech Republic

[4] ACR, Inst Soil Biol & Biogeochem, Biol Ctr, Sadkach 7, Ceske Budejovice 37005, Czech Republic

[5] Charles Univ Prague, Inst Environm Studies, Fac Sci, Benatska 2, Prague 12800, Czech Republic

[6] Agr Res Ltd, Zahradni 400, Troubsko 66441, Czech Republic

[7] Bydgoszcz Univ Sci & Technol, Fac Agr & Biotechnol, Dept Agron, 7 Prof S Kaliskiego St, PL-85796 Bydgoszcz, Poland

[8] Warsaw Univ Life Sci, Inst Environm Engn, Nowoursynowska 159, PL-02776 Warsaw, Poland

来源：

EUROPEAN JOURNAL OF AGRONOMY | 2024年 / 158卷

关键词：

Forecropping; Carbon fractions; Soil enzymes; Soil respiration; Crop yield; Harvest parameters; SOIL ORGANIC-CARBON; AGRICULTURAL INTENSIFICATION; RESIDUE MANAGEMENT; GRAIN LEGUME; SPRING WHEAT; TILLAGE; BIODIVERSITY; IMPACTS; SEQUESTRATION; FERTILIZATION;

D O I：

10.1016/j.eja.2024.127218

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Background: Crop rotation is an agronomic practice that can offer benefits such as increased soil aggregation, carbon storage, crop yield, nutrient transformation, and utilisation efficiency, alongside an increased abundance of microorganisms. As winter wheat is sensitive to certain forecrops, selecting suitable ones may influence productivity. Methods: This study assessed the impact of three forecrops on selected soil properties (carbon content, mineralisation, aggregate stability, and microbial biomass) at two soil depths and on wheat yield over three years. This approach introduced a novel evaluation of the interrelations between soil and crop traits. The experiment comprised the following variants: I. wheat after alfalfa (AW), II. wheat after maize (MW), and III. wheat in monoculture (WW). Results: Compared to wheat following alfalfa, wheat monoculture displayed higher total carbon and total organic carbon and the lowest relative residual oxidisable carbon (among all variants) at depth 2 (0.15-0.30 m). In variants where wheat followed different forecrops, significantly higher carbon mineralisation activities were observed at depth 2. The greatest increases in dehydrogenase, basal, and L-alanine-induced respiration (IR) were in the depth 2 of the MW variant, whereas in depth 1 (0-0.15 m) in the AW variant, the highest L-arginine-IR and fungal biomass were recorded. The WW showed increased soil aggregate stability between depth 1 and depth 2. The MW variant did not exhibit a significant depth-dependent effect on most properties. High bacterial biomass was associated with carbon mineralisation and with an increased proportion of recalcitrant carbon in both forecrops (AW, MW). These variants improved crop yield, number of spikes, and thousand-grain weight compared to WW. Conclusion: While forecrop practices were only moderately effective in enhancing soil carbon storage and stabilisation at soil depth 2, they contributed positively to soil microbial abundance, mineralisation activity, and grain yield.

引用

页数：12

共 78 条

[1] Increasing crop diversity in wheat rotations increases yields but decreases soil health [J].