Effect of straw management on carbon sequestration and grain production in a maize–wheat cropping system in Anthrosol of the Guanzhong Plain

Li, Shuo; Li, Youbing; Li, Xiushuang; Tian, Xiaohong; Zhao, Aiqing; Wang, Shujuan; Wang, Shaoxia; Shi, Jingxin

doi:10.1016/j.still.2015.11.002

Cited by 107 publications

(71 citation statements)

References 49 publications

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“…Straw return likely produces increased plant-derived C, sequesters SOC, and, at the same time, achieves optimum crop productivity (Shuo et al, 2016). Similar to the results obtained in our study, a meta-analysis of upland and paddy crops in China compared crop yields and SOC stock changes with and without straw returns and found that long-term, continuous straw return leads to overall increases in both yields and SOC (Wang, Wang, Xu, Feng, Zhang, & Lu, 2015).…”

Section: Crop Rotation Systems Soc Stocks and Crop Yieldssupporting

confidence: 86%

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Effects of long‐term straw return on soil organic carbon storage and sequestration rate in North China upland crops: A meta‐analysis

Berhane

Liang

et al. 2020

Global Change Biology

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196

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Soil organic carbon (SOC) is essential for soil fertility and climate change mitigation, and carbon can be sequestered in soil through proper soil management, including straw return. However, results of studies of long‐term straw return on SOC are contradictory and increasing SOC stocks in upland soils is challenging. This study of North China upland agricultural fields quantified the effects of several fertilizer and straw return treatments on SOC storage changes and crop yields, considering different cropping duration periods, soil types, and cropping systems to establish the relationships of SOC sequestration rates with initial SOC stocks and annual straw C inputs. Our meta‐analysis using long‐term field experiments showed that SOC stock responses to straw return were greater than that of mineral fertilizers alone. Black soils with higher initial SOC stocks also had lower SOC stock increases than did soils with lower initial SOC stocks (fluvo‐aquic and loessial soils) following applications of nitrogen‐phosphorous‐potassium (NPK) fertilizer and NPK+S (straw). Soil C stocks under the NPK and NPK+S treatments increased in the more‐than‐20‐year duration period, while significant SOC stock increases in the NP and NP+S treatment groups were limited to the 11‐ to 20‐year period. Annual crop productivity was higher in double‐cropped wheat and maize under all fertilization treatments, including control (no fertilization), than in the single‐crop systems (wheat or maize). Also, the annual soil sequestration rates and annual straw C inputs of the treatments with straw return (NP+S and NPK+S) were significantly positively related. Moreover, initial SOC stocks and SOC sequestration rates of those treatments were highly negatively correlated. Thus, long‐term straw return integrated with mineral fertilization in upland wheat and maize croplands leads to increased crop yields and SOC stocks. However, those effects of straw return are highly dependent on fertilizer management, cropping system, soil type, duration period, and the initial SOC content.

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Section: Crop Rotation Systems Soc Stocks and Crop Yieldssupporting

confidence: 86%

“…China (Shuo et al, 2016). Moreover, the slope of the linear equation was lower for NP+S (0.17) than for NPK+S (0.31), thus demonstrating that about 17% and 31%, respectively, of annual straw C input into the soil was transformed to SOC.…”

Section: Relationships Between Soc Sequestration Rates and Annual Cmentioning

confidence: 92%

Effects of long‐term straw return on soil organic carbon storage and sequestration rate in North China upland crops: A meta‐analysis

Berhane

Liang

et al. 2020

Global Change Biology

Self Cite

196

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“…The annual sunshine duration was 2164 h. The annual frost-free period was 210 days. The site had a Lou soil type with silt clay loam texture (sand 26%; silt 33%; clay 41%), which was classified as Eum-Orthic Anthrosols [17]. The top soil (0-20 cm) had a field capacity of 23.8% (gravimetric water content), dry bulk density of 1.35 g•cm −3 , pH of 7.65, organic matter content of 13.71 g•kg −1 , total N of 1.86 g•kg −1 , total P of 1.40 g•kg −1 , and total K of 20.22 g•kg −1 .…”

Section: Experimental Sitementioning

confidence: 99%

An Optimum Irrigation Schedule with Aeration for Greenhouse Tomato Cultivations Based on Entropy Evaluation Method

et al. 2019

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To balance multiple objectives of high yield by farmers, high quality by customers, and high irrigation water use efficiency (IWUE) for sustainable development of agriculture, a two-growing-season study was performed to test the effect of aeration at three irrigation levels (60%, 80%, and 100% of full irrigation) on crop growth, nutrient uptake, yield, IWUE, and fruit quality of tomato. The results showed that compared to the control, aeration significantly increased total dry weight at harvest, total N and K accumulation, which increased tomato yield by 23% and IWUE by 23% (p < 0.05). Yield and IWUE were significantly affected by irrigation with the increasing rate of 20.5% and 14.3% for yield, and with the decreasing rate of 27.7% and 8.6% for IWUE under 100% of full irrigation than that under 60% and 80% of full irrigation, respectively. Aeration positively impacted fruit quality while irrigation had a negative impact (p > 0.05). Based on these indicators, full irrigation with aeration could be an appropriate schedule for greenhouse tomato cultivations by the entropy evaluation method with the comprehensive score of 0.879 and 0.77 for the spring-summer and autumn-winter season, respectively. The result is of great significance to the farmers’ or researchers’ management of aerated irrigation in greenhouse tomatoes.

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“…The application of mineral fertilizer and the decomposition of straw increased soil organic matter, which also promoted the growth and reproduction of soil microorganisms and enhanced soil respiration [ 47,48] . With the growth of Astragalus sinicus L. and rice plants, crop root secretion and abscission increased, the micro biological activity and rice respiration strengthened, thus increasing CO 2 emission[ 49,50] as well as straw carbon decomposition also stimulated the mineralization of soil organic carbon to produce CO 2 [ 51] (Li et al…”

Section: Necbmentioning

confidence: 99%

Comparison of carbon footprint and net ecosystem carbon budget under organic materials retention combined with reduced mineral fertilizer

Liu

Tang

Smith

et al. 2020

Preprint

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Background: Excessive application of chemical fertilizer has resulted in lower nitrogen uptake and utilization of crops, decreasing soil fertility, increasing greenhouse gas emissions and worse environment pollution and organic fertilizer materials retention is regard as the key to solve these problems. Whether the retention of Astragalus sinicus L. (Chinese milk vetch) and rice straw would induce lower greenhouse gas emissions and higher carbon sink remains unclear. The objective of this study is to conduct an assessment of carbon budget under Astragalus sinicus L. and rice straw retention combined with reduced mineral fertilizer based on the two years field experiment in a paddy field in southern China. Four treatments were designed: control CK (winter follow, 120 kg ha-1 N fertilizer for each rice season) and three treatments with Astragalus sinicus L. and rice straw retention named RA, RB and RC (reduced N fertilizer 15%, 27.5% and 40% in turn during each rice season).Results: Treatments RA, RB and RC increased GHG emissions by 9.30%~101.25%, among which CH4 accounted for more than 60%; Carbon input of crops from Treatments RA, RB and RC increased by 2.25%~12.10% compared with control CK over the two years. Though treatments RA, RB and RC enhanced CO2 emission, however, treatment RB decreased carbon footprint and became C sink.Conclusions: The results of this study reveal that treatment RB is better in reducing chemical fertilizer amount, increasing crop yield and C balance, which is more conductive to sustainable development of agriculture.

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Effect of straw management on carbon sequestration and grain production in a maize–wheat cropping system in Anthrosol of the Guanzhong Plain

Cited by 107 publications

References 49 publications

Effects of long‐term straw return on soil organic carbon storage and sequestration rate in North China upland crops: A meta‐analysis

Effects of long‐term straw return on soil organic carbon storage and sequestration rate in North China upland crops: A meta‐analysis

An Optimum Irrigation Schedule with Aeration for Greenhouse Tomato Cultivations Based on Entropy Evaluation Method

Comparison of carbon footprint and net ecosystem carbon budget under organic materials retention combined with reduced mineral fertilizer

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