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Long-term fertilization impacts on corn yields and soil organic matter on a clay-loam soil in Northeast China

文献类型： 外文期刊

作者： Zhu, Ping 1 ; Ren, Jun 2 ; Wang, Lichun 2 ; Zhang, Xiaoping 2 ; Yang, Xueming 3 ; MacTavish, Don;

作者机构： 1.Agr & Agri Food Canada, Greenhouse & Proc Crops Res Ctr, Harrow, ON N0R 1G0, Canada

2.Agr & Agri Food Canada, Greenhouse & Proc Crops Res Ctr, Harrow, ON N0R 1G0, Canada; Jilin Acad Agr Sci, Inst Soil & Fertilizer Sci, Gongzhuling, Jilin, Peoples R China; Chinese Acad Sci, Inst NE Inst Geog & Agroecol, Changchun 130022, Peoples R China

3.Agr & Agri Food Canada, Greenhouse & Proc Crops Res Ctr, Harrow, ON N0R 1G0, Canada; Jilin Acad Agr Sci, Inst Soil & Fertilizer Sci, Gongzhuling, Jilin, Peoples R China; Chinese Ac

关键词： corn yield;farmyard manure;long-term experiment;mineral fertilizer;monoculture;soil organic matter

期刊名称：JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE-ZEITSCHRIFT FUR PFLANZENERNAHRUNG UND BODENKUNDE （ 影响因子：1.595； 五年影响因子：1.766 ）

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收录情况： SCI

摘要： A long-term fertilization experiment with monoculture corn (Zea mays L.) was established in 1980 on a clay-loam soil (Black Soil in Chinese Soil Classification and Typic Halpudoll in USDA Soil Taxonomy) at Gongzhuling, Jilin Province, China. The experiment aimed to study the sustainability of grain-corn production on this soil type with eight different nitrogen (N)-, phosphorus (P)-, and potassium (K)-mineral fertilizer combinations and three levels (0, 30, and 60 Mg ha-1 y-1) of farmyard manure (FYM). On average, FYM additions produced higher grain yields (7.78 and 8.03 Mg ha-1) compared to the FYM0 (no farmyard application) treatments (5.67 Mg ha-1). The application of N fertilizer (solely or in various combinations with P and K) in the FYM0 treatment resulted in substantial grain-yield increases compared to the FYM0 control treatment (3.56 Mg ha-1). However, the use of NP or NK did not yield in any significant additional effect on the corn yield compared to the use of N alone. The treatments involving P, K, and PK fertilizers resulted in an average 24% increase in yield over the FYM0 control. Over all FYM treatments, the effect of fertilization on corn yield was NPK > NP = NK = N > PK = P > K = control. Farmyard-manure additions for 25 y increased soil organic-matter (SOM) content by 3.8 g kg-1 (13.6%) in the FYM1 treatments and by 7.8 g kg-1 (27.8%) in the FYM2 treatments, compared to a 3.2 g kg-1 decrease (11.4%) in the FYM0 treatments. Overall, the results suggest that mineral fertilizers can maintain high yields, but a combination of mineral fertilizers plus farmyard manure are needed to enhance soil organic-matter levels in this soil type.

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[1]Soil organic carbon sequestration under different fertilizer regimes in north and northeast China: RothC simulation. Wang, J.,Lu, C.,Xu, M.,Zhang, W.,Zhu, P.,Peng, C.,Huang, S.,Chen, X.,Wu, L.. 2013

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