To explore the effects of different nitrogen levels on maize yield and nitrogen uptake and utilization under the condition of straw deep burial, the maize yield, seed nitrogen accumulation, and nitrogen use efficiency were determined with maize taken as the research subject, straw burial (no straw, straw deep burial) set as main factors and nitrogen application levels (no, low, medium and high nitrogen) set as vice factors. The results showed that compared to no straw, straw deep burial could increase yield, with increasing rates between 4.61%-9.88%. There were significant differences between yields of different nitrogen application levels under straw deep burial (P<0.05). Maize seed nitrogen accumulation increased as nitrogen application increasing, and the correlation between them was extremely significant positive (P<0.01). When the nitrogen application level was high, the seed nitrogen accumulation of straw deep burial was higher than that of no straw. Agronomic utilization of nitrogen fertilizer increased as nitrogen application increasing, while nitrogen partial factor productivity decreased as nitrogen application increasing. When the nitrogen application level was high, the agronomic utilization of nitrogen fertilizer under straw deep burial was highest, which was 14.61 kg/kg. Straw deep burial could increase nitrogen partial factor productivity. In conclusion, it is better to increase nitrogen fertilizer properly under straw deep burial in practice.
Key words
straw deep burial; nitrogen fertilizer level; maize yield; nitrogen utilization; nitrogen uptake
{{custom_keyword}} /
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
References
[1] 国家统计局. 中国统计年鉴[M]. 中国统计出版社, 2018.
[2] 谢光辉,王晓玉,任兰天. 中国作物秸秆资源评估研究现状[J]. 生物工程学报. 2010, 26(07): 855-863.
[3] 毕于运,王亚静,高春雨,等. 我国秸秆焚烧的现状危害与禁烧管理对策[J]. 安徽农业科学. 2009, 37(27): 13181-13184.
[4] 王红梅,屠焰,张乃锋,等. 中国农作物秸秆资源量及其“五料化”利用现状[J]. 科技导报. 2017, 35(21): 81-88.
[5] 朱玉芹,岳玉兰. 玉米秸秆还田培肥地力研究综述[J]. 玉米科学. 2004, 12(3): 106-108.
[6] 李涛,何春娥,葛晓颖,等. 秸秆还田施氮调节碳氮比对土壤无机氮、酶活性及作物产量的影响[J]. 中国生态农业学报. 2016, 24(12): 1633-1642.
[7] Moritsuka N, Yanai J, Mori K, et al. Biotic and abiotic processes of nitrogen immobilization in the soil-residue interface[J]. Soil Biology and Biochemistry. 2004, 36(7): 1141-1148.
[8] 焉莉,操梦颖,胡中强,等. 施肥方式对东北玉米种植区氮磷流失的影响[J]. 环境污染与防治. 2018, 40(2).
[9] 于寒,梁烜赫,张玉秋,等. 不同秸秆还田方式对玉米根际土壤微生物及酶活性的影响[J]. 农业资源与环境学报. 2015, 32(03): 305-311.
[10] 陈天助,李波,丰雪,等. 深埋秸秆和覆膜对土壤水分、玉米产量及品质的影响[J]. 沈阳农业大学学报. 2016, 47(04): 493-498.
[11] 潘圣刚,曹凑贵,蔡明历,等. 不同灌溉模式下氮肥水平对水稻氮素利用效率、产量及其品质的影响[J]. 植物营养与肥料学报. 2009, 15(02): 283-289.
[12] 韩瑞芸,陈哲,杨世琦. 秸秆还田对土壤氮磷及水土的影响研究[J]. 中国农学通报. 2016, 32(09): 148-154.
[13] 战秀梅,李亭亭,韩晓日,等. 不同施肥方式对春玉米产量、效益及氮素吸收和利用的影响[J]. 植物营养与肥料学报. 2011, 17(04): 861-868.
[14] 李贵桐,赵紫娟,黄元仿,等. 秸秆还田对土壤氮素转化的影响[J]. 植物营养与肥料学报. 2002(02): 162-167.
[15] 张颖. 不同产量类型春玉米养分吸收特点及其分配规律的研究[J]. 玉米科学. 1997(03): 70-72.
[16] 杨梦雅,刘志鹏,陈曦,等. 施氮水平对高产夏玉米氮磷钾积累和产量形成特性的影响[J]. 河北农业大学学报. 2017, 40(06): 1-8.
[17] Akiratanaka, Junichiyamaguchi, Shumiura, et al. Comparison of fertilizer nitrogen efficiency among field crops[J]. Soil Science Plant Nutrition. 1984, 30(2): 199-208.
[18] 单鹤翔,卢昌艾,张金涛,等. 不同肥力土壤下施氮与玉米秸秆还田对冬小麦氮素吸收利用的影响[J]. 植物营养与肥料学报. 2012, 18(01): 35-41.
[19] 于舒函,龚振平,马春梅,等. 秸秆还田与施氮肥对松嫩平原玉米氮素吸收及产量的影响[J]. 玉米科学. 2017, 25(04): 129-134.
[20] 白伟,逄焕成,牛世伟,等. 秸秆还田与施氮量对春玉米产量及土壤理化性状的影响[J]. 玉米科学. 2015, 23(03): 99-106.
{{custom_fnGroup.title_en}}
Footnotes
{{custom_fn.content}}
PDF(1213 KB)
