| 生物炭结合氮肥减量对玉米产量和氮效率的影响 |
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| 引用本文： | 崔文芳,陈静,鲁富宽,秦丽,秦德志,王利平,高聚林. 生物炭结合氮肥减量对玉米产量和氮效率的影响[J]. 浙江农业学报, 2022, 34(2): 248-254. DOI: 10.3969/j.issn.1004-1524.2022.02.05 |
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| 作者姓名： | 崔文芳 陈静 鲁富宽 秦丽 秦德志 王利平 高聚林 |
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| 作者单位： | a.内蒙古农业大学 职业技术学院,内蒙古 呼和浩特 010019b.内蒙古农业大学 农学院,内蒙古 呼和浩特 010019 |
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| 基金项目： | 内蒙古自然科学基金(2018MS03011) |
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| 摘 要： | 为明确施用生物炭条件下氮高效品种玉米的氮效率和适宜减氮量,以氮高效品种郑单958(ZD)和氮低效品种先玉508(XY)为试验材料,以氮肥用量为主区、品种为副区开展裂区试验设计.试验主区共设置5个处理:C0,不施生物炭,施纯N 300 kg·hm-2;C1,施生物炭3000 kg·hm-2和纯N 300 kg·hm-2;...
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| 关 键 词： | 玉米 生物炭 氮肥减量 氮效率 氮积累量 |
| 收稿时间： | 2021-03-26 |
Effects of biochar application combined with nitrogen reduction on yield and nitrogen use efficiency of maize |
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| CUI Wenfang,CHEN Jing,LU Fukuan,QIN Li,QIN Dezhi,WANG Liping,GAO Julin. Effects of biochar application combined with nitrogen reduction on yield and nitrogen use efficiency of maize[J]. Acta Agriculturae Zhejiangensis, 2022, 34(2): 248-254. DOI: 10.3969/j.issn.1004-1524.2022.02.05 |
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| Authors: | CUI Wenfang CHEN Jing LU Fukuan QIN Li QIN Dezhi WANG Liping GAO Julin |
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| Affiliation: | a. Vocational and Technical College, Inner Mongolia Agricultural University, Hohhot 010019, China
b. Agricultural College, Inner Mongolia Agricultural University, Hohhot 010019, China |
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| Abstract: | In order to explore the optimal nitrogen reduction amount and nitrogen use efficiency of N-efficient maize variety, N-efficient maize variety Zhengdan 958 (ZD) and N-inefficient variety Xianyu 508 (XY) were adopted as test materials in the present study. The split zone test design was introduced with nitrogen rate as the main zone and maize variety as the secondary zone. For the main zone, 5 treatments were designed: C0, N rate of 300 kg·hm-2 without biochar application; C1, N rate of 300 kg·hm-2 with 3 000 kg·hm-2 biochar application; C2, N rate of 255 kg·hm-2 with 3 000 kg·hm-2 biochar application; C3, N rate of 210 kg·hm-2 with 3 000 kg·hm-2 biochar application; C4, N rate of 165 kg·hm-2 with 3 000 kg·hm-2 biochar application. It was shown that, judged from nitrogen use efficiency and yield, the proper N rate was 165-210 kg·hm-2 with biochar application for ZD. In other words, nitrogen reduction potential for ZD was 90-135 kg·hm-2 under the given condition, and the nitrogen use efficiency could be elevated by 52.8%-93.3% compared with C0 treatment. Besides, the nitrogen accumulation in grains were mainly transferred from root system at anthesis stage under N rate of 165-210 kg·hm-2 with 3 000 kg·hm-2 biochar application for ZD. In general, proper nitrogen reduction combined with biochar application could exert the advantages of N-efficient variety in nitrogen uptake and utilization, hence to stabilize maize yield with higher nitrogen reduction rate. |
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| Keywords: | maize biochar nitrogen reduction nitrogen use efficiency nitrogen accumulation |
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