灌溉方式和施肥量对小麦产量及水肥药利用的影响
S27; 为提高小麦化肥利用效率以及减少土壤环境污染,以小麦为研究对象,设置2个灌溉方式(滴灌和畦灌),3个施肥处理,施肥量分别为高产施氮肥量的100%、80%、60%进行田间试验,分析不同灌溉方式下小麦氮素、农药分布以及对产量、水肥利用效率的影响.结果表明,土壤中NO3--N含量随施氮量的增加而增加,滴灌条件下土壤NO3--N含量整体小于畦灌.随生育期的推移,土壤中NO3--N含量减少.滴灌方式下可减少农药向深层渗漏,较畦灌土壤0~100 cm苯磺隆残留量可降低48.32%,但不利于土壤中二甲四氯钠农药的分解.不同灌溉条件下,小麦产量株高、千粒重及产量随施肥量的增加而增加.相较于畦灌,滴灌促...
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Published in | 节水灌溉 no. 10; pp. 100 - 111 |
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Main Authors | , , , , |
Format | Journal Article |
Language | Chinese |
Published |
内蒙古农业大学水利与土木建筑工程学院,呼和浩特010018
10.10.2022
水利部牧区水利科学研究所,呼和浩特010020%水利部牧区水利科学研究所,呼和浩特010020 |
Subjects | |
Online Access | Get full text |
ISSN | 1007-4929 |
DOI | 10.12396/jsgg.2022.161 |
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Abstract | S27; 为提高小麦化肥利用效率以及减少土壤环境污染,以小麦为研究对象,设置2个灌溉方式(滴灌和畦灌),3个施肥处理,施肥量分别为高产施氮肥量的100%、80%、60%进行田间试验,分析不同灌溉方式下小麦氮素、农药分布以及对产量、水肥利用效率的影响.结果表明,土壤中NO3--N含量随施氮量的增加而增加,滴灌条件下土壤NO3--N含量整体小于畦灌.随生育期的推移,土壤中NO3--N含量减少.滴灌方式下可减少农药向深层渗漏,较畦灌土壤0~100 cm苯磺隆残留量可降低48.32%,但不利于土壤中二甲四氯钠农药的分解.不同灌溉条件下,小麦产量株高、千粒重及产量随施肥量的增加而增加.相较于畦灌,滴灌促进了植株茎叶干物质输出率和干物质转化率,提高了小麦产量和水肥利用效率,较畦灌的产量、水分利用效率及氮肥偏生产力分别平均增加7.09%、41.56%、57.58%.因此,滴灌条件下最佳施肥量为1500 kg/hm2. |
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AbstractList | S27; 为提高小麦化肥利用效率以及减少土壤环境污染,以小麦为研究对象,设置2个灌溉方式(滴灌和畦灌),3个施肥处理,施肥量分别为高产施氮肥量的100%、80%、60%进行田间试验,分析不同灌溉方式下小麦氮素、农药分布以及对产量、水肥利用效率的影响.结果表明,土壤中NO3--N含量随施氮量的增加而增加,滴灌条件下土壤NO3--N含量整体小于畦灌.随生育期的推移,土壤中NO3--N含量减少.滴灌方式下可减少农药向深层渗漏,较畦灌土壤0~100 cm苯磺隆残留量可降低48.32%,但不利于土壤中二甲四氯钠农药的分解.不同灌溉条件下,小麦产量株高、千粒重及产量随施肥量的增加而增加.相较于畦灌,滴灌促进了植株茎叶干物质输出率和干物质转化率,提高了小麦产量和水肥利用效率,较畦灌的产量、水分利用效率及氮肥偏生产力分别平均增加7.09%、41.56%、57.58%.因此,滴灌条件下最佳施肥量为1500 kg/hm2. |
Author | 侯晨丽 郝蕾 李泽坤 任杰 田德龙 |
AuthorAffiliation | 水利部牧区水利科学研究所,呼和浩特010020%水利部牧区水利科学研究所,呼和浩特010020;内蒙古农业大学水利与土木建筑工程学院,呼和浩特010018 |
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Author_FL | REN Jie HAO Lei LI Ze-kun HOU Chen-li TIAN De-long |
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DocumentTitle_FL | Effects of Different Irrigation Methods and Fertilizer Amount on Wheat Yield and Utilization of Water, Fertilizer and Medicine |
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PublicationTitle_FL | Water Saving Irrigation |
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Title | 灌溉方式和施肥量对小麦产量及水肥药利用的影响 |
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