[1]崔文芳,秦德志,陈静,等.氮肥配施生物炭对玉米与大豆间作模式作物干物质及氮养分积累特性的影响[J].江苏农业学报,2025,(08):1508-1516.[doi:doi:10.3969/j.issn.1000-4440.2025.08.007]
　CUI Wenfang,QIN Dezhi,CHEN Jing,et al.Effects of combined application of nitrogen fertilizer and biochar on dry matter and nitrogen nutrient accumulation characteristics in maize-soybean intercropping patterns[J].,2025,(08):1508-1516.[doi:doi:10.3969/j.issn.1000-4440.2025.08.007]
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氮肥配施生物炭对玉米与大豆间作模式作物干物质及氮养分积累特性的影响()

江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2025年08期
页码:
1508-1516
栏目:
耕作栽培·资源环境
出版日期:
2025-08-31

文章信息/Info

Title:
Effects of combined application of nitrogen fertilizer and biochar on dry matter and nitrogen nutrient accumulation characteristics in maize-soybean intercropping patterns
作者:
崔文芳1; 秦德志1; 陈静1; 刘剑1; 王彦平2; 秦丽1
(1.内蒙古农业大学,内蒙古呼和浩特010018；2.呼伦贝尔市气象局,内蒙古呼伦贝尔021008)
Author(s):
CUI Wenfang1; QIN Dezhi1; CHEN Jing1; LIU Jian1; WANG Yanping2; QIN Li1
(1.Inner Mongolia Agricultural University, Hohhot 010018, China;2.Hulunbuir Meteorological Bureau, Hulunbuir 021008, China)
关键词:
玉米; 大豆; 间作; 氮肥; 生物炭; 产量
Keywords:
maize; soybean; intercropping; nitrogen fertilizer; biochar; yield
分类号:
S513；S565.1
DOI:
doi:10.3969/j.issn.1000-4440.2025.08.007
文献标志码:
A
摘要:
研究氮肥搭配生物炭施用对玉米与大豆间作群体干物质积累和氮素利用率的影响,对实现玉米与大豆间作高产稳产具有重要实践意义。本研究设计3种种植模式,分别是玉米单作(M)、大豆单作(S)、玉米与大豆间作(I),结合氮肥3个施用梯度(165 kg/hm2、210 kg/hm2、255 kg/hm2)和生物炭3个施用梯度(2 t/hm2、4 t/hm2、6 t/hm2),采用正交试验设计,探究不同种植模式下氮肥与生物炭配施的最佳组合及其对作物干物质积累和氮素利用效率的影响。结果表明,在氮肥与生物炭配施的9个处理中,IN3C2组合(即玉米与大豆间作模式下氮肥施用量255 kg/hm2、生物炭施用量4 t/hm2)表现更优,玉米和大豆综合产量达13 395 kg/hm2。IN3C2处理有效缓解了间作对玉米干物质积累和氮积累的负面影响,虽然干物质积累量显著低于玉米单作模式,但玉米单株氮积累量较单作显著提高42.42%(P＜0.05),氮素吸收能力优势凸显。综上,氮肥合理配施生物炭能够促进间作玉米植株氮素积累,提高氮肥利用效率,实现减氮增效目标。
Abstract:
The study on the effects of combined application of nitrogen fertilizer and biochar on dry matter accumulation and nitrogen use efficiency in maize-soybean intercropping systems is of great practical significance for achieving high and stable yields in maize-soybean intercropping. This study designed three planting patterns: maize monoculture (M), soybean monoculture (S), and maize-soybean intercropping (I), combined with three application gradients of nitrogen fertilizer (165 kg/hm2, 210 kg/hm2, 255 kg/hm2) and three application gradients of biochar (2 t/hm2, 4 t/hm2, 6 t/hm2). An orthogonal experimental design was adopted to explore the optimal combination of nitrogen fertilizer and biochar application under different planting patterns and their effects on crop dry matter accumulation and nitrogen use efficiency. The results showed that among the nine treatments combining nitrogen fertilizer and biochar application, the IN3C2 combination (maize-soybean intercropping with a nitrogen fertilizer application rate of 255 kg/hm2 and a biochar application rate of 4 t/hm2) demonstrated superior performance, achieving a combined maize-soybean yield of 13 395 kg/hm2. The IN3C2 treatment effectively alleviated the negative effects of intercropping on dry matter accumulation and nitrogen accumulation in maize. Although the dry matter accumulation in maize under intercropping mode was significantly lower than that under monoculture mode, the nitrogen accumulation per plant in maize was significantly increased by 42.42% compared with monoculture (P＜0.05), highlighting the advantage of nitrogen absorption capacity. In conclusion, the combined application of nitrogen fertilizer and biochar can promote nitrogen accumulation in intercropped maize plants, improve nitrogen use efficiency, and achieve the goal of nitrogen reduction and efficiency enhancement.

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备注/Memo

备注/Memo:
收稿日期：2024-06-11基金项目：国家自然科学基金项目(32160506)；内蒙古自治区高等学校碳达峰碳中和研究专项(STZX201314)作者简介：崔文芳(1977-),女,内蒙古呼伦贝尔人,博士,教授,主要从事玉米高产氮高效利用研究。(E-mail)cui.wenfang@163.com通讯作者：王彦平,(E-mail)fei_ping@sohu.com
更新日期/Last Update: 2025-09-23