Influence of decomposition agent application and schedule in wheat straw return practice on soil quality and crop yield

Wang, Xiaogang; Wang, Qiongshan; Youchang, Zhang; Jiaohai, Zhang; Xia, Songbo; Qin, Hongde; Feng, Chunda; Shu, Bie

doi:10.1186/s40538-022-00362-8

Cited by 10 publications

(5 citation statements)

References 43 publications

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“…The results of this study demonstrate that different straw-returning measures, including straw mulching, straw incorporation, and biochar application, have a significant impact on increasing soil carbon, nitrogen, phosphorus, and potassium levels (Tables 1 and 2). The direct effect of returning straw is to raise soil nutrient levels by introducing mineral nutrients and organic matter into the soil [29,30]. Straw and biochar, both rich in organic carbon, increase the organic matter content in the soil.…”

Section: Effects Of Different Straw Returning Measures On Soil Nutrientsmentioning

confidence: 99%

Straw Returning Measures Enhance Soil Moisture and Nutrients and Promote Cotton Growth

Tang

Luo

et al. 2023

Agronomy

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In order to investigate the comprehensive effects of straw returning on soil physical and chemical properties, as well as cotton growth in Jiangsu, China, and to determine suitable high-yield and efficient straw returning measures, this study implemented three different straw returning methods: straw mulching (SM), straw incorporation (SI), and straw biochar (BC), with no straw returning served as a control (CT). The study aimed to assess the impact of these straw-returning measures on soil nutrients, soil moisture content, soil water storage, and deficit status, as well as primary indicators of cotton growth. The findings revealed that the total available nutrient storage under SM, SI, and BC showed an increase of 11.93%, 11.15%, and 32.39%, respectively, compared to CT. Among these methods, BC demonstrated a significant enhancement in soil organic carbon content, available phosphorus, and available potassium. Furthermore, SM exhibited a considerable increase in soil moisture content across all layers (0–40 cm), resulting in an average water storage increase of 7.42 mm compared to CT. Consequently, this effectively reduced the soil water deficit during the cotton development period. Moreover, the height of cotton plants was increased by SM, SI, and BC, with SM promoting the greatest growth rate of up to 66.87%. SM resulted in an 11.17 cm increase in cotton plant height compared to CT. Additionally, SM contributed to higher chlorophyll content in leaves at the end of the growth period. Overall, the indicators suggest that straw mulching is particularly effective in enhancing soil moisture and nutrient distribution, especially during dry years, and has a positive impact on promoting cotton development. Based on the results, straw mulching emerges as a recommended straw-returning measure for improving soil quality and maximizing cotton production in the study area.

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Section: Effects Of Different Straw Returning Measures On Soil Nutrientsmentioning

confidence: 99%

Straw Returning Measures Enhance Soil Moisture and Nutrients and Promote Cotton Growth

Tang

Luo

et al. 2023

Agronomy

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“…Previous studies have demonstrated the positive impact of straw incorporation on soil quality and subsequent crop yield improvement [73]. In the present study, the MDS-SQI for the four treatments followed the order of C7 > C3 > F3 > F7.…”

Section: Mds-based Soil Quality Evaluationmentioning

confidence: 59%

Long-Term Straw Incorporation under Controlled Irrigation Improves Soil Quality of Paddy Field and Rice Yield in Northeast China

Zhang,

Chen,

Nie

et al. 2024

Plants

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Soil quality is an indicator of the ability to ensure ecological security and sustainable soil usage. The effects of long-term straw incorporation and different irrigation regimes on the yield and soil quality of paddy fields in cold regions remain unclear. This study established four treatments: controlled irrigation + continuous straw incorporation for 3 years (C3), controlled irrigation + continuous straw incorporation for 7 years (C7), flooded irrigation + continuous straw incorporation for 3 years (F3), and flooded irrigation + continuous straw incorporation for 7 years (F7). Analysis was conducted on the impact of various irrigation regimes and straw incorporation years on the physicochemical characteristics and quality of the soil. The soil quality index (SQI) for rice fields was computed using separate datasets for each treatment. The soil nitrate nitrogen, available phosphorus, soil organic carbon, and soil organic matter contents of the C7 were 93.51%, 5.80%, 8.90%, and 8.26% higher compared to C3, respectively. In addition, the yield of the C7 treatment was 5.18%, 4.89%, and 10.32% higher than those of F3, C3, and F7, respectively. The validity of the minimum data set (MDS) was verified by correlation, Ef and ER, which indicated that the MDS of all treatments were able to provide a valid evaluation of soil quality. The MDS based SQI of C7 was 11.05%, 11.97%, and 27.71% higher than that of F3, C3, and F7, respectively. Overall, long-term straw incorporation combined with controlled irrigation increases yield and soil quality in paddy fields in cold regions. This study provides a thorough assessment of soil quality concerning irrigation regimes and straw incorporation years to preserve food security and the sustainability of agricultural output. Additionally, it offers a basis for soil quality diagnosis of paddy fields in the Northeast China.

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“…Evidence has suggested that slow straw decomposition may reduce seedling quality [101]. Thus, the application of decomposition agents after SR is required to improve straw utilization rates at this stage [102]. Notably, although decomposition agents promote straw decomposition, this rapid decomposition accelerates N fixation by soil microorganisms and reduces soil N effectiveness.…”

Section: Sr and Associated Challengesmentioning

confidence: 99%

The Fate and Challenges of the Main Nutrients in Returned Straw: A Basic Review

Li,

Jiao

et al. 2024

Agronomy

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Due to containing an abundance of essential nutrients, straw has significant potential to mitigate carbon (C), nitrogen (N), phosphorus (P), and potassium (K) deficits in soil. However, a lack of comprehensive and systematic reviews on C, N, P, and K release and conversion from straw and on the impact of available nutrients in soils supplemented using straw-returning (SR) practices is noticeable in the literature. Therefore, we investigated straw decomposition, its nutrient release characteristics, and the subsequent fate of nutrients in soils. At early stages, straw decomposes rapidly and then gradually slows down at later stages. Nutrient release rates are generally in the K > P > C > N order. Nutrient fate encompasses fractions mineralized to inorganic nutrients, portions which supplement soil organic matter (SOM) pools, and other portions which are lost via leaching and gas volatilization. In future research, efforts should be made to quantitatively track straw nutrient release and fate and also examine the potential impact of coordinated supply-and-demand interactions between straw nutrients and plants. This review will provide a more systematic understanding of SR’s effectiveness in agriculture.

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Influence of decomposition agent application and schedule in wheat straw return practice on soil quality and crop yield

Cited by 10 publications

References 43 publications

Straw Returning Measures Enhance Soil Moisture and Nutrients and Promote Cotton Growth

Straw Returning Measures Enhance Soil Moisture and Nutrients and Promote Cotton Growth

Long-Term Straw Incorporation under Controlled Irrigation Improves Soil Quality of Paddy Field and Rice Yield in Northeast China

The Fate and Challenges of the Main Nutrients in Returned Straw: A Basic Review

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