| 肥料和除草剂混施对老芒麦生产性能的影响 |
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| 引用本文： | 游明鸿,刘金平,白史且,张新全,卞志高.肥料和除草剂混施对老芒麦生产性能的影响[J].草业学报,2010,19(5):283-286. |
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| 作者姓名： | 游明鸿 刘金平 白史且 张新全 卞志高 |
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| 作者单位： | 1.四川农业大学草业科学系,四川 雅安625014;2.四川省草原科学研究院,四川 成都611731;3.西华师范大学生命科学院,四川 南充637009 |
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| 基金项目： | 国家农业行业专项，国家牧草产业技术体系和"十一五"国家科技支撑项目 |
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| 摘 要： | 以尿素和磷酸二氢钾不同浓度,组合“盖阔”或“速效”除草剂,对拔节末期老芒麦混施,结果表明,混施降低了杂草种类、单位面积杂草生物量,杂草占生物量比例;混施对老芒麦株高、鲜草产量、干草产量变异系数分别为12.42%(P=0.0006),29.98%(P<0.0001),25.93%(P<0.0001),“尿素7500g/hm2+磷酸二氢钾300g/hm2+盖阔27g/hm2”、“尿素7500g/hm2+盖阔27g/hm2”和“尿素15000g/hm2+磷酸二氢钾300g/hm2+速效75g/hm2”3个组合增产效果明显;混施对种子产量影响极显著(P=0.0009),“尿素7500g/hm2+磷酸二氢钾300g/hm2+盖阔27g/hm2”、“尿素7500g/hm2+速效75g/hm2”和“尿素15000g/hm2+磷酸二氢钾300g/hm2+速效75g/hm2”3个组合种子增产显著;处理组分与生产性能指标的相关系数较低,肥料与除草剂共同作用导致了生产性能的差异性;混施可减少田间作业次数、降低管理成本、达到增肥和除草的双重效果,值得在生产中推广与应用。
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| 关 键 词： | 肥料 除草剂 老芒麦 生产性能 |
| 收稿时间： | 1900-01-01; |
Effects of mixed application of fertilizers and herbicides on production performance of Elymus sibiricus |
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| YOU Ming-hong,LIU Jin-ping,BAI Shi-qie,ZHANG Xin-quan,BIAN Zhi-gao.Effects of mixed application of fertilizers and herbicides on production performance of Elymus sibiricus[J].Acta Prataculturae Sinica,2010,19(5):283-286. |
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| Authors: | YOU Ming-hong LIU Jin-ping BAI Shi-qie ZHANG Xin-quan BIAN Zhi-gao |
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| Institution: | 1.Departmen of Grasssland Science, Sichuan Agricultural University, Ya’an 625014, China; 2.Sichuan Academy of Grassland Science, Chengdu 611731, China; 3.School of Life Science, China West Normal University, Nanchong 637009, China |
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| Abstract: | Six types of treatment with different contents of(NH2)2CO,KH2PO4 and broad-leaved herbicide 75% tribenuron dry suspension concentrate(SC)and 28% wettable powder sulphinpyrazone(WP T-Y)were applied to Elymus sibiricus cv.chuancao NO.2 grassland at the jointing stage.The mixed treatment affected weed species,weed biomass per unit area,and weed rate to total biomass.Three treatments,7 500g/ha (NH2)2CO+300g/ha KH2PO4+27g/ha 75% tribenuron dry SC,7 500g/ha(NH2)2CO+27g/ha 75% tribenuron dry SC,and 15 000g/ha(NH2)... |
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| Keywords: | fertilizer herbicides Elymus sibiricus production performance |
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