中国农学通报 ›› 2020, Vol. 36 ›› Issue (4): 15-22.doi: 10.11924/j.issn.1000-6850.casb18100083
所属专题: 玉米
收稿日期:
2018-10-23
修回日期:
2019-01-07
出版日期:
2020-02-05
发布日期:
2020-02-08
通讯作者:
胡恒宇
作者简介:
傅敏,女,1998年出生,山东青岛人,本科,主要从事环境工程研究。通信地址:276000 山东省临沂市兰山区兰山街道 临沂大学,E-mail:1371099546@qq.com。
基金资助:
Fu Min, Ding Wenchao, Hu Hengyu(), Wei Anpei
Received:
2018-10-23
Revised:
2019-01-07
Online:
2020-02-05
Published:
2020-02-08
Contact:
Hu Hengyu
摘要:
水分和氮素管理对提高作物产量具有重要作用。笔者研究尿素类型与灌溉管理对玉米节水保肥的影响以达到玉米高氮肥利用效率和高产田的生产目标。本研究在2016—2017年开展2年完全随机区组设计试验,讨论了尿素类型(普通尿素和控释尿素)及灌溉对玉米土壤和氮素利用的影响。每种尿素类型设置2种氮素水平,分别为75、150 kg N/hm 2,以不施氮肥为对照。水分设置2种灌溉水平,分别为全生育期不灌水和灌浆阶段灌水85 mm。结果表明:在灌溉与施氮水平相同下,0~40 cm土层应用控释尿素处理氮含量较高,但在更深的土壤层低于普通尿素处理;相对于不灌溉,灌溉增加了硝态氮的损失,但施用控释尿素的处理硝态氮损失低于施用普通尿素处理;灌溉条件下施用控释尿素可以提高玉米氮素吸收,并使更多的氮向籽粒中转移;与普通尿素相比,控释尿素提高了氮肥利用率,降低土壤对氮需求的依赖。控释尿素低氮的释放可以减少硝态氮在土壤中的存留时间而迅速被玉米吸收,从而降低硝态氮的损失风险,提高了土壤氮肥利用效率。综上,控释尿素与少量灌溉相结合适用于华北半湿润地区达到玉米高氮肥利用效率和高产田的生产目标。
中图分类号:
傅敏, 丁文超, 胡恒宇, 韦安培. 尿素类型与灌溉管理对玉米节水保肥的影响[J]. 中国农学通报, 2020, 36(4): 15-22.
Fu Min, Ding Wenchao, Hu Hengyu, Wei Anpei. Effects of Urea Types and Irrigation Management on Water and Fertilizer Conservation in Maize Production[J]. Chinese Agricultural Science Bulletin, 2020, 36(4): 15-22.
处理 | 籽粒氮素积累量(ANG)/(kg/hm2) | 秸秆氮素积累量(ANS)/(kg/hm2) | 氮素利用效率(NRE)/% | 土壤氮依赖率(SND)/% |
---|---|---|---|---|
W0N0 | 85.2j | 56.6j | — | — |
W0N1 | 99.6h | 66.3h | 32.1g | 85.5a |
W0CN1 | 109.1f | 76.8f | 58.8a | 76.3c |
W0N2 | 118.6d | 89.9d | 44.5e | 68.0e |
W0CN2 | 125.5b | 97.6b | 54.2c | 63.6g |
W1N0 | 88.0i | 59.7i | — | — |
W1N1 | 103.0g | 68.8g | 32.1g | 86.0a |
W1CN1 | 111.2e | 78.0e | 55.3b | 78.1b |
W1N2 | 120.2c | 93.2c | 43.8f | 69.2d |
W1CN2 | 128.1a | 99.5a | 53.3d | 64.9f |
处理 | 籽粒氮素积累量(ANG)/(kg/hm2) | 秸秆氮素积累量(ANS)/(kg/hm2) | 氮素利用效率(NRE)/% | 土壤氮依赖率(SND)/% |
---|---|---|---|---|
W0N0 | 85.2j | 56.6j | — | — |
W0N1 | 99.6h | 66.3h | 32.1g | 85.5a |
W0CN1 | 109.1f | 76.8f | 58.8a | 76.3c |
W0N2 | 118.6d | 89.9d | 44.5e | 68.0e |
W0CN2 | 125.5b | 97.6b | 54.2c | 63.6g |
W1N0 | 88.0i | 59.7i | — | — |
W1N1 | 103.0g | 68.8g | 32.1g | 86.0a |
W1CN1 | 111.2e | 78.0e | 55.3b | 78.1b |
W1N2 | 120.2c | 93.2c | 43.8f | 69.2d |
W1CN2 | 128.1a | 99.5a | 53.3d | 64.9f |
处理 | 籽粒氮素积累量(ANG)/(kg/hm2) | 秸秆氮素积累量(ANS)/(kg/hm2) | 氮素利用效率(NRE)/% | 土壤氮依赖率(SND)/% |
---|---|---|---|---|
W0N0 | 86.3j | 57.5j | — | — |
W0N1 | 99.7h | 67.8h | 31.6h | 85.9a |
W0CN1 | 108.6f | 78.0f | 57.1a | 77.1c |
W0N2 | 119.2d | 94.3c | 46.5e | 67.4e |
W0CN2 | 125.9b | 99.7b | 54.5c | 63.7g |
W1N0 | 88.6i | 59.7i | — | — |
W1N1 | 103.7g | 68.8g | 32.3g | 86.0a |
W1CN1 | 111.8e | 78.7e | 56.3b | 77.8b |
W1N2 | 121.9c | 92.9d | 44.3f | 69.0d |
W1CN2 | 127.6a | 100.6a | 53.3d | 65.0f |
处理 | 籽粒氮素积累量(ANG)/(kg/hm2) | 秸秆氮素积累量(ANS)/(kg/hm2) | 氮素利用效率(NRE)/% | 土壤氮依赖率(SND)/% |
---|---|---|---|---|
W0N0 | 86.3j | 57.5j | — | — |
W0N1 | 99.7h | 67.8h | 31.6h | 85.9a |
W0CN1 | 108.6f | 78.0f | 57.1a | 77.1c |
W0N2 | 119.2d | 94.3c | 46.5e | 67.4e |
W0CN2 | 125.9b | 99.7b | 54.5c | 63.7g |
W1N0 | 88.6i | 59.7i | — | — |
W1N1 | 103.7g | 68.8g | 32.3g | 86.0a |
W1CN1 | 111.8e | 78.7e | 56.3b | 77.8b |
W1N2 | 121.9c | 92.9d | 44.3f | 69.0d |
W1CN2 | 127.6a | 100.6a | 53.3d | 65.0f |
处理 | 玉米吸收 | 土壤残留 | 土壤损失 | |||||
---|---|---|---|---|---|---|---|---|
kg/hm2 | % | kg/hm2 | % | kg/hm2 | % | |||
W0N0 | 141.8j | 56.9 | 107.2f | 43.1 | 0 | 0.0 | ||
W0N1 | 165.9h | 51.2 | 125.6c | 38.8 | 32.5e | 10.0 | ||
W0CN1 | 185.9f | 57.3 | 132.1b | 40.8 | 6.0h | 1.9 | ||
W0N2 | 208.5d | 52.3 | 124.5c | 31.2 | 66a | 16.5 | ||
W0CN2 | 223.1b | 55.9 | 144.6a | 36.2 | 31.3f | 7.9 | ||
W1N0 | 147.7i | 57.7 | 108.5f | 42.3 | 0 | 0.0 | ||
W1N1 | 171.8g | 51.9 | 114.1e | 34.4 | 45.3c | 13.7 | ||
W1CN1 | 189.2e | 57.1 | 118.1d | 35.7 | 23.9g | 7.2 | ||
W1N2 | 213.4c | 52.5 | 133.8b | 32.9 | 59b | 14.5 | ||
W1CN2 | 227.6a | 56.0 | 145.1a | 35.7 | 33.5d | 8.2 |
处理 | 玉米吸收 | 土壤残留 | 土壤损失 | |||||
---|---|---|---|---|---|---|---|---|
kg/hm2 | % | kg/hm2 | % | kg/hm2 | % | |||
W0N0 | 141.8j | 56.9 | 107.2f | 43.1 | 0 | 0.0 | ||
W0N1 | 165.9h | 51.2 | 125.6c | 38.8 | 32.5e | 10.0 | ||
W0CN1 | 185.9f | 57.3 | 132.1b | 40.8 | 6.0h | 1.9 | ||
W0N2 | 208.5d | 52.3 | 124.5c | 31.2 | 66a | 16.5 | ||
W0CN2 | 223.1b | 55.9 | 144.6a | 36.2 | 31.3f | 7.9 | ||
W1N0 | 147.7i | 57.7 | 108.5f | 42.3 | 0 | 0.0 | ||
W1N1 | 171.8g | 51.9 | 114.1e | 34.4 | 45.3c | 13.7 | ||
W1CN1 | 189.2e | 57.1 | 118.1d | 35.7 | 23.9g | 7.2 | ||
W1N2 | 213.4c | 52.5 | 133.8b | 32.9 | 59b | 14.5 | ||
W1CN2 | 227.6a | 56.0 | 145.1a | 35.7 | 33.5d | 8.2 |
处理 | 玉米吸收 | 土壤残留 | 土壤损失 | |||||
---|---|---|---|---|---|---|---|---|
kg/hm2 | % | kg/hm2 | % | kg/hm2 | % | |||
W0N0 | 143.8h | 56.9 | 108.9h | 43.1 | 0 | 0.0 | ||
W0N1 | 167.5f | 51.1 | 126.6e | 38.6 | 33.6d | 10.3 | ||
W0CN1 | 186.6d | 56.9 | 131.9c | 40.3 | 9.2h | 2.8 | ||
W0N2 | 213.5b | 53.0 | 128.5d | 31.9 | 60.7a | 15.1 | ||
W0CN2 | 225.6a | 56.0 | 146.6a | 36.4 | 30.5f | 7.6 | ||
W1N0 | 148.3g | 57.6 | 109.0g | 42.4 | 0 | 0.0 | ||
W1N1 | 172.5e | 51.9 | 116.0g | 34.9 | 43.8c | 13.2 | ||
W1CN1 | 190.5c | 57.3 | 117.5f | 35.4 | 24.3g | 7.3 | ||
W1N2 | 214.8b | 52.7 | 134.9b | 33.1 | 57.6b | 14.1 | ||
W1CN2 | 228.2a | 56.0 | 146.6a | 36.0 | 32.5e | 8.0 |
处理 | 玉米吸收 | 土壤残留 | 土壤损失 | |||||
---|---|---|---|---|---|---|---|---|
kg/hm2 | % | kg/hm2 | % | kg/hm2 | % | |||
W0N0 | 143.8h | 56.9 | 108.9h | 43.1 | 0 | 0.0 | ||
W0N1 | 167.5f | 51.1 | 126.6e | 38.6 | 33.6d | 10.3 | ||
W0CN1 | 186.6d | 56.9 | 131.9c | 40.3 | 9.2h | 2.8 | ||
W0N2 | 213.5b | 53.0 | 128.5d | 31.9 | 60.7a | 15.1 | ||
W0CN2 | 225.6a | 56.0 | 146.6a | 36.4 | 30.5f | 7.6 | ||
W1N0 | 148.3g | 57.6 | 109.0g | 42.4 | 0 | 0.0 | ||
W1N1 | 172.5e | 51.9 | 116.0g | 34.9 | 43.8c | 13.2 | ||
W1CN1 | 190.5c | 57.3 | 117.5f | 35.4 | 24.3g | 7.3 | ||
W1N2 | 214.8b | 52.7 | 134.9b | 33.1 | 57.6b | 14.1 | ||
W1CN2 | 228.2a | 56.0 | 146.6a | 36.0 | 32.5e | 8.0 |
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