Long-term benefits of combining chemical fertilizer and manure applications on crop yields and soil carbon and nitrogen stocks in North China Plain

Gai, Xiapu; Liu, Hongbin; Liu, Jian; Zhai, Limei; Yang, Bo; Wu, Siqi; Ren, Tao; Lei, Qiuliang; Wang, Hongyuan

doi:10.1016/j.agwat.2018.07.002

Cited by 120 publications

(61 citation statements)

References 53 publications

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“…However, that does not necessarily mean that the manure applied on the soil surface (not incorporated) was the main contributor to the soil carbon accrual, because there is evidence that roots may contribute more than residue deposited on the soil surface (Rasse, Rumpel, & Dignac, 2005). We suggest that both the direct manure input and the indirect increase of plant input (aboveground and roots) are both important processes contributing to the soil carbon accrual after manure application on the surface of no‐till soil (Gai et al, 2018; Wei et al, 2017). Zhang et al (2015), in a long‐term experiment with manure and plant residue ( Zea mays L.), verified changes in the soil organic carbon stocks at 0–20‐cm depth.…”

Section: Discussionmentioning

confidence: 99%

Long‐term surface application of dairy liquid manure to soil under no‐till improves carbon and nitrogen stocks

Cavalcante

Favaretto

Dieckow

et al. 2019

European J Soil Science

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Manure application and no-till management improve soil quality, crop yields and C inputs, but little specific knowledge is available regarding the combined effect of long-term dairy liquid manure (DLM) application and no-till management on soil organic matter status and soil structure in topsoils. Here, we assess the impacts of surface-applied DLM for a 10-year period on soil total organic carbon (TOC) and nitrogen (TN) concentrations and stocks, on organic matter fractions and on soil physical-structural attributes in a no-till crop rotation system on clayey Ferralsol under no-till crop rotation management in a subtropical climate. Four rates of DLM (0, 60, 120 and 180 m 3 ha −1 year −1) were applied in a randomized block design with four replications. Soil samples were collected to calculate TOC and TN stocks to 100-cm depth and organic matter fractions in the 0-5-cm layer, and physical indicators of soil quality: bulk density, macroporosity and microporosity and aggregate stability. The largest DLM rates (120 and 180 m 3 ha −1 year −1) added 3.8-5.8 Mg C ha −1 year −1 as manure, increased crop residue input by 0.6 Mg C ha −1 year −1 , and increased TOC stock by 17% and TN stock by 27% in the top 10 cm of soil, at annual accumulation rates that averaged 0.72 Mg C ha −1 year −1 and 86 kg N ha −1 year −1. Stocks of TOC and TN in the sand-POM (particulate organic matter) fraction under the 180 m 3 ha −1 year −1 rate increased by 49 and 63%, and in the silt-MOM (mineral-associated organic matter) fraction by 30 and 47%, respectively. In the clay-MOM fraction, the change in TOC was not significant, but the TN increased by 16%. Soil physical-structural attributes (bulk density, porosity and aggregates) were improved by DLM application in the 10-cm layer and followed the soil carbon and nitrogen increments. Overall, the DLM amendment applied on the soil surface of no-till proved to be a strategy to ameliorate soil organic matter status, an important factor for agronomic and environmental benefits, besides improving crop biomass production. Highlights • Long-term application of liquid manure increased concentration and stock of SOC and TN in the 0-10-cm layer. • Increases of 0.72 Mg C ha −1 year −1 and 86 kg N ha −1 year −1 were observed in the 10-cm topsoil with manure.

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Section: Discussionmentioning

confidence: 99%

Long‐term surface application of dairy liquid manure to soil under no‐till improves carbon and nitrogen stocks

Cavalcante

Favaretto

Dieckow

et al. 2019

European J Soil Science

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“…However, in our VPA analysis results, the unexplained proportion was 64%, which was higher than the explained proportion. This might be due to the same rates of inorganic fertilization being applied in all cropping treatments because fertilizer is one of the main influencing factors on crop yield in long-term fertility experiments [55,56].…”

Section: Discussionmentioning

confidence: 99%

Long-Term Green Manure Rotations Improve Soil Biochemical Properties, Yield Sustainability and Nutrient Balances in Acidic Paddy Soil under a Rice-Based Cropping System

et al. 2019

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Cultivation of green manure (GM) crops in intensive cropping systems is important for enhancing crop productivity through soil quality improvement. We investigated yield sustainability, nutrient stocks, nutrient balances and enzyme activities affected by different long-term (1982–2016) green manure rotations in acidic paddy soil in a double-rice cropping system. We selected four treatments from a long-term experiment, including (1) rice-rice-winter fallow as a control treatment (R-R-F), (2) rice-rice-milkvetch (R-R-M), (3) rice-rice-rapeseed (R-R-R), and (4) rice-rice-ryegrass (R-R-G). The results showed that different GM rotations increased grain yield and the sustainable yield index compared with those of the R-R-F treatment. Compared with those of R-R-F, the average grain yield of early rice in R-R-M, R-R-R, and R-R-G increased by 45%, 29%, and 27%, respectively and that of late rice increased by 46%, 28%, and 26%, respectively. Over the years, grain yield increased in all treatments except R-R-F. Green manure also improved the soil chemical properties (SOM and total and available N and P), except soil pH, compared to those of the control treatment. During the 1983–1990 cultivation period, the soil pH of the R-R-M treatment was lower than that of the R-R-F treatment. The addition of green manure did not mitigate the soil acidification caused by the use of inorganic fertilizers. The soil organic matter (SOM), total nitrogen (TN) and total phosphorus (TP) contents and stocks of C, N and P increased over the years. Furthermore, GM significantly increased phosphatase and urease activities and decreased the apparent N and P balances compared with those in the winter fallow treatment. Variance partitioning analysis revealed that soil properties, cropping systems, and climatic factors significantly influenced annual grain yield. Aggregated boosted tree (ABT) analysis quantified the relative influences of the different soil properties on annual grain yield and showed that the relative influences of TN content, SOM, pH, and TP content on annual crop yield were 27.8%, 25.7%, 22.9%, and 20.7%, respectively. In conclusion, GM rotation is beneficial for sustaining high crop yields by improving soil biochemical properties and reducing N and P balances in acidic soil under double- rice cropping systems.

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“…Available P in soils were extracted with 0.5 mol L −1 NaHCO 3 and determined by using the molybdenum blue method 24 . Soil pH was measured with deionized water (1:5 soil/water) 17 . SOM was determined using Walkely Black method 25 .…”

Section: Experiments Designmentioning

confidence: 99%

“…Moreover, long-term application of organic fertilizers simultaneously improved soil quality and fertility, and provides a solid foundation for promoting soil sustainable productivity 5,15,16 . Compared with the chemical fertilizer application, the combined application of manure and fertilizer increased the crop yield during the whole test period and raised the SOC and TN reserves 17,18 . Therefore, the combined application of organic and inorganic fertilizers has been commonly recognized 19 .…”

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confidence: 99%

Manure application increased crop yields by promoting nitrogen use efficiency in the soils of 40-year soybean-maize rotation

Wei

Luo

et al. 2020

Sci Rep

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It is great of importance to better understand the effects of the long-term fertilization on crop yields, soil properties and nitrogen (N) use efficiency in a rotation cropping cultivation system under the conditions of frequent soil disturbance. Therefore, a long-term field experiment of 40 years under soybean-maize rotation was performed in a brown soil to investigate the effects of inorganic and organic fertilizers on crop yields, soil properties and nitrogen use efficiency. Equal amounts of 15N-labelled urea with 20.8% of atom were used and uniformly applied into the micro-plots of the treatments with N, NPK, M1NPK, M2NPK before soybean sowing, respectively. Analyses showed that a total of 18.3–32.5% of applied N fertilizer was taken up by crops in the first soybean growing season, and that the application of manure combining with chemical fertilizer M2NPK demonstrated the highest rate of 15N recovery and increased soil organic matter (SOM) and Olsen phosphorus (Olsen P), thereby sustaining a higher crop yield and alleviating soil acidification. Data also showed that no significant difference was observed in the 15N recovery from residue N in the second maize season plant despite of showing a lower 15N recovery compared with the first soybean season. The recovery rates of 15N in soils were ranged from 38.2 to 49.7% by the end of the second cropping season, and the residuals of 15N distribution in soil layers revealed significant differences. The M2NPK treatment demonstrated the highest residual amounts of 15N, and a total of 50% residual 15N were distributed in a soil layer of 0–20 cm. Our results showed that long-term application of organic fertilizers could effectively promote N use efficiency by increasing SOM and improving soil fertility, and thus leading to an increase in crop yields. This study will provide a scientific reference and guidance for improving soil sustainable productivity by manure application.

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Long-term benefits of combining chemical fertilizer and manure applications on crop yields and soil carbon and nitrogen stocks in North China Plain

Cited by 120 publications

References 53 publications

Long‐term surface application of dairy liquid manure to soil under no‐till improves carbon and nitrogen stocks

Long‐term surface application of dairy liquid manure to soil under no‐till improves carbon and nitrogen stocks

Long-Term Green Manure Rotations Improve Soil Biochemical Properties, Yield Sustainability and Nutrient Balances in Acidic Paddy Soil under a Rice-Based Cropping System

Manure application increased crop yields by promoting nitrogen use efficiency in the soils of 40-year soybean-maize rotation

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