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| Effects of the application of cattle farm slurry on wheat/maize yield and soil nitrogen loss in northern China |
| Received:October 09, 2021 |
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| KeyWord:cattle farm slurry;wheat;maize;yield;nitrogen loss |
| Author Name | Affiliation | E-mail | | ZHAO Zichao | Institute of Agricultural Resource and Environment, Shandong Academy of Agricultural Sciences, Jinan 250100, China
Key Laboratory of Wastes Matrix Utilization, Ministry of Agriculture and Rural Affairs, Jinan 250100, China | | | FU Longyun | Institute of Agricultural Resource and Environment, Shandong Academy of Agricultural Sciences, Jinan 250100, China | | | LI Yan | Institute of Agricultural Resource and Environment, Shandong Academy of Agricultural Sciences, Jinan 250100, China
Key Laboratory of Agro-Environment of Huang-Huai-Hai Plain, Ministry of Agriculture and Rural Affairs, Jinan 250100, China | | | YAO Li | Institute of Agricultural Resource and Environment, Shandong Academy of Agricultural Sciences, Jinan 250100, China
Key Laboratory of Wastes Matrix Utilization, Ministry of Agriculture and Rural Affairs, Jinan 250100, China | | | TIAN Zhonghong | Shandong Yinxiang Weiye Group Co., Ltd, Heze 274400, China | | | JING Yongping | Institute of Agricultural Resource and Environment, Shandong Academy of Agricultural Sciences, Jinan 250100, China | | | ZHONG Ziwen | Institute of Agricultural Resource and Environment, Shandong Academy of Agricultural Sciences, Jinan 250100, China | | | WANG Yanqin | Institute of Agricultural Resource and Environment, Shandong Academy of Agricultural Sciences, Jinan 250100, China
Key Laboratory of Agro-Environment of Huang-Huai-Hai Plain, Ministry of Agriculture and Rural Affairs, Jinan 250100, China | hjwyq2018@163.com |
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| Abstract: |
| The present study aimed to better understand the effects of applying cattle farm slurry on crop yield, nitrogen(N)use efficiency, and N loss. A field experiment consisting of one treatment without N fertilizer and four treatments with N fertilizer was conducted, including CF:farmer's conventional N fertilizer input(broadcast application), CSF:substitution of half the amount of N fertilizer with cattle farm slurry(broadcast application), CS:substitution of the total amount of N fertilizer with cattle farm slurry(broadcast application), and CSD:substitution of the total amount of N fertilizer with cattle farm slurry(deep application). Compared to the conventional chemical fertilizer treatment, the application of cattle farm slurry did not reduce the yield of wheat grain and silage maize, and increased the nitrogen use efficiency(NUE)of crops. The effect of the CSD treatment was the best. Compared to the CF treatment, the CSF and CS treatments increased the ammonia volatilization by 5.6% and 27.1% in the wheat season, and by 7.8% and 14.7% in the maize season, respectively. Compared to the CF treatment, the CSD treatment decreased ammonia volatilization by 15.3% and 12.6% in the wheat and maize seasons, respectively. CSF, CS, and CSD treatments decreased nitrogen leaching loss by 38.5%, 66.7%, and 35.8% in the wheat season, and 22.6%, 39.2%, and 57.8% in the maize season, respectively, compared to that of the CF treatment. Consequently, the deep application of cattle farm slurry is the optimum choice to improve nitrogen use efficiency and reduce nitrogen loss to ensure crop yield in northern China. |
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