优化行管配置和施氮量提高机采棉养分吸收及产量
【目的】通过田间试验研究滴灌机采棉不同行距、滴灌毛管铺设位置及施氮量对棉花生长、养分吸收和产量的影响。【方法】试验设置4种管配置模式：行距（66+10）cm滴灌毛管在作物窄行中间（B66）、行距（66+10）cm滴灌毛管在作物宽行间靠近作物位置（S66）、行距（72+4）cm滴灌毛管在作物宽行间靠近作物位置（S72）、76 cm等行距（S76）；同时，设置3个施氮（N）水平0、240、300 kg/hm2（分别以N0、N240、N300表示）。【结果】S66和B66处理土壤水分与硝态氮在0~40 cm土层分布较均匀，其中，S66处理土壤硝态氮主要分布在作物根系区域。与S66-N300相比，S6...
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| Published in | Guanʻgai paishui xuebao Vol. 39; no. 5; pp. 1 - 9 |
|---|---|
| Main Authors | , , , , |
| Format | Journal Article |
| Language | Chinese English |
| Published |
Xinxiang City
Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage
01.05.2020
石河子大学农学院/新疆生产建设兵团绿洲生态农业重点实验室,新疆石河子,832003 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1672-3317 |
| DOI | 10.13522/j.cnki.ggps.2019139 |
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| Abstract | 【目的】通过田间试验研究滴灌机采棉不同行距、滴灌毛管铺设位置及施氮量对棉花生长、养分吸收和产量的影响。【方法】试验设置4种管配置模式：行距（66+10）cm滴灌毛管在作物窄行中间（B66）、行距（66+10）cm滴灌毛管在作物宽行间靠近作物位置（S66）、行距（72+4）cm滴灌毛管在作物宽行间靠近作物位置（S72）、76 cm等行距（S76）；同时，设置3个施氮（N）水平0、240、300 kg/hm2（分别以N0、N240、N300表示）。【结果】S66和B66处理土壤水分与硝态氮在0~40 cm土层分布较均匀，其中，S66处理土壤硝态氮主要分布在作物根系区域。与S66-N300相比，S66-N240和B66-N240处理棉花干物质量和氮素吸收量无显著差异，S72-N240和S76-N240处理棉花干物质量和氮素吸收量显著降低。B66-N240处理棉花磷素和钾素吸收量显著高于其他处理。S66-N240和B66-N240处理棉花产量和氮肥表观利用率均显著高于S66-N300处理，尤其S66-N240处理氮肥表观利用率最高，较S66-N300处理增加28.7%。S72-N240与S76-N240处理棉花产量和氮肥表观利用率均显著低于S66-N300处理。【结论】机采棉行距（66+10）cm模式下，施氮量为240 kg/hm2时可显著提高棉花产量，滴灌毛管铺设在作物行宽行靠近作物位置利于氮素吸收，提高氮肥利用率；滴灌毛管在作物窄行中间的则增加棉花对磷和钾的吸收。 |
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| AbstractList | 【目的】通过田间试验研究滴灌机采棉不同行距、滴灌毛管铺设位置及施氮量对棉花生长、养分吸收和产量的影响。【方法】试验设置4种管配置模式：行距（66+10）cm滴灌毛管在作物窄行中间（B66）、行距（66+10）cm滴灌毛管在作物宽行间靠近作物位置（S66）、行距（72+4）cm滴灌毛管在作物宽行间靠近作物位置（S72）、76 cm等行距（S76）；同时，设置3个施氮（N）水平0、240、300 kg/hm2（分别以N0、N240、N300表示）。【结果】S66和B66处理土壤水分与硝态氮在0~40 cm土层分布较均匀，其中，S66处理土壤硝态氮主要分布在作物根系区域。与S66-N300相比，S66-N240和B66-N240处理棉花干物质量和氮素吸收量无显著差异，S72-N240和S76-N240处理棉花干物质量和氮素吸收量显著降低。B66-N240处理棉花磷素和钾素吸收量显著高于其他处理。S66-N240和B66-N240处理棉花产量和氮肥表观利用率均显著高于S66-N300处理，尤其S66-N240处理氮肥表观利用率最高，较S66-N300处理增加28.7%。S72-N240与S76-N240处理棉花产量和氮肥表观利用率均显著低于S66-N300处理。【结论】机采棉行距（66+10）cm模式下，施氮量为240 kg/hm2时可显著提高棉花产量，滴灌毛管铺设在作物行宽行靠近作物位置利于氮素吸收，提高氮肥利用率；滴灌毛管在作物窄行中间的则增加棉花对磷和钾的吸收。 S562; [目的]通过田间试验研究滴灌机采棉不同行距、滴灌毛管铺设位置及施氮量对棉花生长、养分吸收和产量的影响.[方法]试验设置4种管配置模式:行距(66+10) cm滴灌毛管在作物窄行中间(B66)、行距(66+10) cm滴灌毛管在作物宽行间靠近作物位置(S66)、行距(72+4) cm滴灌毛管在作物宽行间靠近作物位置(S72)、76 cm等行距(S76);同时,设置3个施氮(N)水平0、240、300 kg/hm2(分别以N0、N240、N300表示).[结果]S66和B66处理土壤水分与硝态氮在0～40 cm土层分布较均匀,其中,S66处理土壤硝态氮主要分布在作物根系区域.与S66-N300相比,S66-N240和B66-N240处理棉花干物质量和氮素吸收量无显著差异,S72-N240和S76-N240处理棉花干物质量和氮素吸收量显著降低.B66-N240处理棉花磷素和钾素吸收量显著高于其他处理.S66-N240和B66-N240处理棉花产量和氮肥表观利用率均显著高于S66-N300处理,尤其S66-N240处理氮肥表观利用率最高,较S66-N300处理增加28.7％.S72-N240与S76-N240处理棉花产量和氮肥表观利用率均显著低于S66-N300处理.[结论]机采棉行距(66+10) cm模式下,施氮量为240 kg/hm2时可显著提高棉花产量,滴灌毛管铺设在作物行宽行靠近作物位置利于氮素吸收,提高氮肥利用率;滴灌毛管在作物窄行中间的则增加棉花对磷和钾的吸收. |
| Author | LIU, Kai HOU Zhen’an YIN Xing WANG Fangbin SUN, Jialin |
| AuthorAffiliation | 石河子大学农学院/新疆生产建设兵团绿洲生态农业重点实验室,新疆石河子,832003 |
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| Author_FL | YIN Xing LIU Kai SUN Jialin WANG Fangbin HOU Zhen'an |
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| Copyright | Copyright Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage 2020 Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| Snippet | ... S562; [目的]通过田间试验研究滴灌机采棉不同行距、滴灌毛管铺设位置及施氮量对棉花生长、养分吸收和产量的影响.[方法]试验设置4种管配置模式:行距(66+10) cm滴灌毛管在作物窄行中间(B66)、行距(66+10) cm滴灌毛管在作物宽行间靠近作物位置(S66)、行距(72+4)... |
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| SubjectTerms | Cotton Crop production Crop yield Drip irrigation Dry matter Effective precipitation Efficiency Harvesting Irrigation Irrigation efficiency Labor productivity Moisture content Nitrogen Nutrient uptake Planting Productivity Root zone Semi arid areas Semiarid zones Soil layers Soil water |
| Title | 优化行管配置和施氮量提高机采棉养分吸收及产量 |
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