控释掺混肥结合增密对水稻氮肥利用效率和氨挥发的影响
S511%S147.5; 为探究控释掺混肥结合增密对水稻产量、氮素吸收、施肥经济效益和氨挥发损失的影响,该研究以扬籼优418为供试材料,设不施氮对照(CK)、常规施氮(Farmer's Fertilization Practice,FFP)、优化施氮(Optimized Nitrogen Application,OPT)、控释掺混肥(Controlled Release Blended Fertilizer,CRBF)和控释掺混肥结合增密(Controlled Release Blended Fertilizer Combined with Dense Planting,CRFDP)...
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Published in | 农业工程学报 Vol. 38; no. 13; pp. 56 - 63 |
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Main Authors | , , , , , , , , , |
Format | Journal Article |
Language | Chinese |
Published |
北京市缓控释肥料工程技术研究中心,北京 100097%长江大学农学院/湿地生态与农业利用教育部工程研究中心,荆州 434025
01.07.2022
北京市农林科学院植物营养与资源环境研究所,北京 100097 |
Subjects | |
Online Access | Get full text |
ISSN | 1002-6819 |
DOI | 10.11975/j.issn.1002-6819.2022.13.007 |
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Abstract | S511%S147.5; 为探究控释掺混肥结合增密对水稻产量、氮素吸收、施肥经济效益和氨挥发损失的影响,该研究以扬籼优418为供试材料,设不施氮对照(CK)、常规施氮(Farmer's Fertilization Practice,FFP)、优化施氮(Optimized Nitrogen Application,OPT)、控释掺混肥(Controlled Release Blended Fertilizer,CRBF)和控释掺混肥结合增密(Controlled Release Blended Fertilizer Combined with Dense Planting,CRFDP)共5个处理,对比分析了不同处理的水稻产量及构成因子、氮素吸收和氮肥利用效率、经济效益和氨挥发损失的差异.结果发现,CRFDP处理的水稻有效穗数和每穗实粒数显著高于其他处理(P<0.05),较FFP分别增加26.1%和18.7%.CRFDP处理较FFP处理水稻增产33.3%.与FFP相比,CRFDP的氮肥吸收利用率、氮肥偏生产力、氮肥农学利用率分别提高160%、22.8 kg/kg、16.27 kg/kg.CRFDP较CRBF处理的氮肥吸收利用率显著提高10.0个百分点,氮肥偏生产力、氮肥农学利用率和氮素生理利用率则没有显著差异(P>0.05);与FFP处理相比,3个优化施氮处理(OPT、CRBF和CRFDP)在氮肥用量降低20%的情况下,水稻每公顷净收益增加3328~8968元,其中CRFDP处理的水稻产值和净收益最高.施氮显著提高了水稻生长季的田面水铵态氮浓度和土壤脲酶活性,与FFP处理相比,CRFDP处理的氨挥发强度和累积氨挥发损失分别降低62.5%和46.3%.综上,控释掺混肥与增密结合可兼顾水稻高产、氮肥高效利用和氨减排.研究结果可为水稻高产及环境友好和资源高效的水稻种植新模式提供数据支持和理论支撑. |
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AbstractList | S511%S147.5; 为探究控释掺混肥结合增密对水稻产量、氮素吸收、施肥经济效益和氨挥发损失的影响,该研究以扬籼优418为供试材料,设不施氮对照(CK)、常规施氮(Farmer's Fertilization Practice,FFP)、优化施氮(Optimized Nitrogen Application,OPT)、控释掺混肥(Controlled Release Blended Fertilizer,CRBF)和控释掺混肥结合增密(Controlled Release Blended Fertilizer Combined with Dense Planting,CRFDP)共5个处理,对比分析了不同处理的水稻产量及构成因子、氮素吸收和氮肥利用效率、经济效益和氨挥发损失的差异.结果发现,CRFDP处理的水稻有效穗数和每穗实粒数显著高于其他处理(P<0.05),较FFP分别增加26.1%和18.7%.CRFDP处理较FFP处理水稻增产33.3%.与FFP相比,CRFDP的氮肥吸收利用率、氮肥偏生产力、氮肥农学利用率分别提高160%、22.8 kg/kg、16.27 kg/kg.CRFDP较CRBF处理的氮肥吸收利用率显著提高10.0个百分点,氮肥偏生产力、氮肥农学利用率和氮素生理利用率则没有显著差异(P>0.05);与FFP处理相比,3个优化施氮处理(OPT、CRBF和CRFDP)在氮肥用量降低20%的情况下,水稻每公顷净收益增加3328~8968元,其中CRFDP处理的水稻产值和净收益最高.施氮显著提高了水稻生长季的田面水铵态氮浓度和土壤脲酶活性,与FFP处理相比,CRFDP处理的氨挥发强度和累积氨挥发损失分别降低62.5%和46.3%.综上,控释掺混肥与增密结合可兼顾水稻高产、氮肥高效利用和氨减排.研究结果可为水稻高产及环境友好和资源高效的水稻种植新模式提供数据支持和理论支撑. |
Author | 曹兵 丁紫娟 王磊 侯俊 马孝卫 邹国元 王甲辰 倪小会 王学霞 陈延华 |
AuthorAffiliation | 北京市农林科学院植物营养与资源环境研究所,北京 100097;北京市缓控释肥料工程技术研究中心,北京 100097%长江大学农学院/湿地生态与农业利用教育部工程研究中心,荆州 434025 |
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Author_FL | Wang Jiachen Wang Lei Chen Yanhua Ma Xiaowei Cao Bing Hou Jun Wang Xuexia Zou Guoyuan Ni Xiaohui Ding Zijuan |
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DocumentTitle_FL | Effects of the blends of controlled-release and conventional nitrogen fertilizers combined with dense planting on nitrogen use efficiency and ammonia volatilization in a paddy field |
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Keywords | 产量 增密 氨挥发 控释掺混肥 氮肥 经济效益 水稻 |
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Title | 控释掺混肥结合增密对水稻氮肥利用效率和氨挥发的影响 |
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