Abstract
Manure application to soil has declined globally due to increased availability of mineral fertilizers. However, mineral fertilizer overuse has caused serious consequences for soil quality and the environment. We analyzed the results of 20 long-term field trials (22–32 years, start year [ranged from 1980 to 1990] to 2012) and combined this with a climate change model and soil organic carbon (SOC) model to quantify the importance of manure and mineral fertilizers for grain yield and SOC sequestration across croplands in China. During the past three decades mineral fertilizers have increased grain yield for 91–184% but had minor impact on SOC sequestration (4–16%). In contrast, manure applied with mineral fertilizer increased grain yield by only 6–19% but strongly raised the SOC content (9–39%) compared with mineral fertilizer. Modeling (to the year 2099) indicated that manure used in combination with mineral fertilizers will increase future C sequestration in soils across China by 2,086 Tg C and by 2,482 Tg C based on current net primary productivity with no climate change and on increased net primary productivity with climate change scenarios, respectively. This corresponds to an additional 43–58% increase in C sequestration compared to mineral fertilizers only. The manure efficiency for C sequestration in soil was about 9.6% of C input and decreased with increasing SOC content. To maintain the current SOC content (i.e., 2010), 11 t·ha−1·year−1 fresh manure or 4.8 t·ha−1·year−1 dry maize straw would be required. We conclude that the regular use of manure with mineral fertilizers is essential for the long-term dual functions of soil for food production and SOC sequestration.
| Original language | English |
|---|---|
| Pages (from-to) | 1659-1672 |
| Number of pages | 14 |
| Journal | Global Biogeochemical Cycles |
| Volume | 32 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 1 Nov 2018 |
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Manure and Mineral Fertilizer Effects on Crop Yield and Soil Carbon Sequestration : A Meta-Analysis and Modeling Across China. / Jiang, Guiying; Zhang, Wenju; Xu, Minggang; Kuzyakov, Yakov; Zhang, Xubo; Wang, Jinzhou; Di, Jiaying; Murphy, Daniel V.
In: Global Biogeochemical Cycles, Vol. 32, No. 11, 01.11.2018, p. 1659-1672.Research output: Contribution to journal › Article
TY - JOUR
T1 - Manure and Mineral Fertilizer Effects on Crop Yield and Soil Carbon Sequestration
T2 - A Meta-Analysis and Modeling Across China
AU - Jiang, Guiying
AU - Zhang, Wenju
AU - Xu, Minggang
AU - Kuzyakov, Yakov
AU - Zhang, Xubo
AU - Wang, Jinzhou
AU - Di, Jiaying
AU - Murphy, Daniel V.
PY - 2018/11/1
Y1 - 2018/11/1
N2 - Manure application to soil has declined globally due to increased availability of mineral fertilizers. However, mineral fertilizer overuse has caused serious consequences for soil quality and the environment. We analyzed the results of 20 long-term field trials (22–32 years, start year [ranged from 1980 to 1990] to 2012) and combined this with a climate change model and soil organic carbon (SOC) model to quantify the importance of manure and mineral fertilizers for grain yield and SOC sequestration across croplands in China. During the past three decades mineral fertilizers have increased grain yield for 91–184% but had minor impact on SOC sequestration (4–16%). In contrast, manure applied with mineral fertilizer increased grain yield by only 6–19% but strongly raised the SOC content (9–39%) compared with mineral fertilizer. Modeling (to the year 2099) indicated that manure used in combination with mineral fertilizers will increase future C sequestration in soils across China by 2,086 Tg C and by 2,482 Tg C based on current net primary productivity with no climate change and on increased net primary productivity with climate change scenarios, respectively. This corresponds to an additional 43–58% increase in C sequestration compared to mineral fertilizers only. The manure efficiency for C sequestration in soil was about 9.6% of C input and decreased with increasing SOC content. To maintain the current SOC content (i.e., 2010), 11 t·ha−1·year−1 fresh manure or 4.8 t·ha−1·year−1 dry maize straw would be required. We conclude that the regular use of manure with mineral fertilizers is essential for the long-term dual functions of soil for food production and SOC sequestration.
AB - Manure application to soil has declined globally due to increased availability of mineral fertilizers. However, mineral fertilizer overuse has caused serious consequences for soil quality and the environment. We analyzed the results of 20 long-term field trials (22–32 years, start year [ranged from 1980 to 1990] to 2012) and combined this with a climate change model and soil organic carbon (SOC) model to quantify the importance of manure and mineral fertilizers for grain yield and SOC sequestration across croplands in China. During the past three decades mineral fertilizers have increased grain yield for 91–184% but had minor impact on SOC sequestration (4–16%). In contrast, manure applied with mineral fertilizer increased grain yield by only 6–19% but strongly raised the SOC content (9–39%) compared with mineral fertilizer. Modeling (to the year 2099) indicated that manure used in combination with mineral fertilizers will increase future C sequestration in soils across China by 2,086 Tg C and by 2,482 Tg C based on current net primary productivity with no climate change and on increased net primary productivity with climate change scenarios, respectively. This corresponds to an additional 43–58% increase in C sequestration compared to mineral fertilizers only. The manure efficiency for C sequestration in soil was about 9.6% of C input and decreased with increasing SOC content. To maintain the current SOC content (i.e., 2010), 11 t·ha−1·year−1 fresh manure or 4.8 t·ha−1·year−1 dry maize straw would be required. We conclude that the regular use of manure with mineral fertilizers is essential for the long-term dual functions of soil for food production and SOC sequestration.
KW - carbon sequestration
KW - climate change
KW - long-term experiments
KW - manure
KW - RothC model
UR - http://www.scopus.com/inward/record.url?scp=85056788148&partnerID=8YFLogxK
U2 - 10.1029/2018GB005960
DO - 10.1029/2018GB005960
M3 - Article
VL - 32
SP - 1659
EP - 1672
JO - Global Biogeochemical Cycles
JF - Global Biogeochemical Cycles
SN - 0886-6236
IS - 11
ER -