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Annual burying of pelletized straw benefits grain amino acid by increasing soil mineral elements: A case study in Northeast China

文献类型： 外文期刊

作者： Wang, Peixin 1 ; Wang, Xiquan 1 ; Zong, Rui 5 ; Wang, Xinbo 1 ; Ni, Haiping 5 ; Liu, Lumin 5 ; Yang, Yan 6 ; Hao, Yubo 4 ; Zhang, Yiteng 4 ; Pang, Huancheng 1 ; Qian, Chunrong 4 ;

作者机构： 1.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, State Key Lab Efficient Utilizat Arid & Semiarid A, Beijing 100081, Peoples R China

2.Beijing Acad Agr & Forestry Sci, Inst Grassland Flowers & Ecol, Beijing 100097, Peoples R China

3.Inner Mongolia Agr Univ, Coll Agron, Hohhot 10010, Peoples R China

4.Heilongjiang Acad Agr Sci, Inst Crop Cultivat & Farming, Harbin 150028, Peoples R China

5.Qingdao Hexie Biotechnol Co Ltd, Qingdao 266200, Peoples R China

6.Zhejiang Fengyu Ecosci Co Ltd, Pujiang 322200, Peoples R China

7.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, 12 Zhongguancun South St, Beijing 100081, Peoples R China

关键词： Zea mays L.; Straw form; Straw returning; Soil mineral elements; Grain amino acid

期刊名称：FIELD CROPS RESEARCH （ 影响因子：5.6； 五年影响因子：6.1 ）

ISSN： 0378-4290

年卷期： 2024 年 314 卷

页码：

收录情况： SCI

摘要： Context: Pelletized straw returning is an innovative approach to enhance nutrient cycling in soil-crop systems. However, its impact on the macro- and micronutrients of both soil and grain, along with grain amino acids remains uncertainty. Method: A three-year field experiment was conducted in Northeast China with spring maize monoculture under pelletized straw returning annually with 75 Mg ha-1 (PS75), comparing with chopped straw with 75 Mg ha-1 (CS75) and 15 Mg ha-1 (CS15), as well as no straw returning (CK). Results: Our results indicated that PS75 increased the contents of soil Ca, Mn, Ni, Cu, and Zn by 19 %, 14 %, 9 %, 7 %, and 4 % respectively, compared to CS75. Additionally, PS75 enhanced grain Fe, Mn, and Mg by 35 %, 12 % and 6 % than CS75, respectively. The increases in soil fertility and grain mineral elements benefited grain amino acids. Compared with CS75, PS75 increased the grain and total amino acid yields by 7 % and 29 %, respectively. Conclusion: In conclusion, this study demonstrated that pelletized straw returning is a promising practice for improving soil mineral element contents and enhancing grain nutrients level, which is benefit for producing nutrient-rich food through innovating straw returning strategies in regions with low temperature and precipitation.

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