A seven‐year study on the effects of four tillage modes on soil physicochemical properties, microbial biomass, enzymatic activities, and grain yield in a rice–ratoon rice cropping system

Jiang, Shuochen; Du, Bin; Hu, Fengqin; Zhang, Haiwei; Kong, Pan; Wu, Qing; Zhu, Jianqiang

doi:10.1002/fes3.437

Cited by 3 publications

(1 citation statement)

References 67 publications

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“…BG regulates the release of soil glucose, and UR regulates the decomposition of urea, both of which are important enzymes in soil C and N cycles [47,48]. We observed that tillage increased the activity of BG and UR, which was consistent with previous conclusions [49].…”

Section: Discussionsupporting

confidence: 90%

Impact of Tillage and Straw Management on Soil Properties and Rice Yield in a Rice-Ratoon Rice System

Yang

Wang

2023

Agronomy

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The rice-ratoon system has long been considered an important economic, time-saving, and labor-saving planting method. Optimal tillage and straw management are beneficial to increasing the growth and yield of recycled rice. However, there is little research on the physical and chemical properties of soil under tillage and straw management, and its effects on the yield and fertilizer utilization of recycled rice. A field experiment was conducted to study the effects of four types of tillage and straw management on rice yield and soil properties in central China during 2020–2021. The types of management were no-till with residues retained (NT+S); plow tillage with residue retention (PT+S); no-till with residues removed (NT-S); and plow tillage with residue removed (PT-S). Compared with PT, yield decreased by 38.8% in NT, while straw returning effectively increased the yield of regenerated rice. NT+S increased the yield of main season rice by 37.0% and ratoon rice by 45.3%. Compared with non-returning straw, straw returning increased soil total porosity, soil organic carbon, and activity of β-glucosidase and urease, among which TP and SOC were increased by 8.8% and 27.8%, respectively. The results showed that returning straw to the field could significantly reduce the yield loss caused by no-tillage and improve the soil structure. No-tillage combined with returning straw to the field of regenerative rice is a green, light, and simplified cultivation mode worthy of further exploration.

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Section: Discussionsupporting

confidence: 90%

Impact of Tillage and Straw Management on Soil Properties and Rice Yield in a Rice-Ratoon Rice System

Yang

Wang

2023

Agronomy

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Yield Loss of a Rice Ratoon Crop is Affected by Nitrogen Supply in a Mechanized Ratooning System

Zhou,

Ji,

et al. 2025

Food and Energy Security

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Yield loss of the ratoon crop due to rolling damage during the mechanical harvesting of the main crop (MEC) severely limits the promotion of mechanized rice ratooning technology. Our previous study showed that MEC changed the population structure of the ratoon crop by forming a rolled zone and non‐rolled zone (NRZ), resulting in a positive border effect on the yield of the NRZ, which reduced the yield loss. Nitrogen (N) management has a great impact on matter accumulation and yield formation in ratoon crops. However, it remains unclear whether the border effect on the yield of NRZ is affected by the N rate. The hypothesis is that N rates would affect the border effect on NRZ yield, thereby increasing or decreasing yield loss. To address this question, field experiments were conducted with two harvest methods for the main crop (MEC: mechanical harvesting, MAN: manual harvesting) and three N rates for the ratoon crop (N0: 0, MN: 120, and HN: 180 kg N ha−1) in 2021 and 2022. The results showed that the yield loss declined from 22.4% to 13.2% as the N rate increased from 0 to 180 kg ha−1. The reduction in yield loss was attributed to the increased border effect of higher N supply on NRZ yield. The border effect on NRZ yield was −7.0%, 5.0%, and 10.7% in N0, MN, and HN, respectively. Compared with MAN, the yield reduction of NRZ in N0 was mainly due to the lower yield of the nonrolled side row (R2) and middle row (R3), while the yield increase in NRZ in MN was mainly due to the increased yield of the nonrolled single row (R1), and the yield increase in NRZ in HN was mainly due to the increased yield of both R1 and R2. A high N rate improved root vigor and increased the N uptake and leaf area index of nonrolled rows in MEC, which increased the panicles m−2 and total dry matter weight. With the increase in the N rate, the border effect on these yield attributes of R1 and R2 gradually increased, especially for R1, thereby increasing the border effect on the NRZ yield. Our results indicate that the border effect on the NRZ yield was affected by the N rate. High N supply reduced yield loss of the ratoon crop by increasing the border effect on NRZ yield. The appropriate N rate should be further determined to balance the yield and economic and environmental benefits of the ratoon crop in mechanized rice ratooning systems.

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Soil Nutrient Changes in Black Soil of Northeastern China Under Long-Term Cultivation with Different Fertilizer Applications and Tillage Patterns: A Meta-Analysis

Zhao,

Li,

Huang

et al. 2024

Communications in Soil Science and Plant Analysis

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A seven‐year study on the effects of four tillage modes on soil physicochemical properties, microbial biomass, enzymatic activities, and grain yield in a rice–ratoon rice cropping system

Cited by 3 publications

References 67 publications

Impact of Tillage and Straw Management on Soil Properties and Rice Yield in a Rice-Ratoon Rice System

Impact of Tillage and Straw Management on Soil Properties and Rice Yield in a Rice-Ratoon Rice System

Yield Loss of a Rice Ratoon Crop is Affected by Nitrogen Supply in a Mechanized Ratooning System

Soil Nutrient Changes in Black Soil of Northeastern China Under Long-Term Cultivation with Different Fertilizer Applications and Tillage Patterns: A Meta-Analysis

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