不同水氮条件下生物炭对夏玉米水氮耦合效应的影响
不同水氮条件下生物炭对夏玉米水氮耦合效应的影响
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CAO Leiqi , ZHAI Yaming and ZHU Chengli
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Xinxiang City: Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage
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Xinxiang City: Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage
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【目的】提高水氮亏缺下夏玉米籽粒产量并促进水氮耦合效应，实现夏玉米节水增产。【方法】采用田间小区试验，设定4个生物炭施用水平（0、5、10、15 t/hm2，分别记为C0、C1、C2、C3）、2种灌溉方式（正常灌溉I1、亏缺灌溉I2）和2个施氮水平（常规施氮N1、亏缺施氮N2），正常、亏缺灌溉灌水量分别为100%和50%作物需水量，常规、亏缺施氮量分别为200 kg/hm2和100 kg/hm2，探究了不同水氮条件下生物炭对砂壤土持水保肥效果以及夏玉米水氮耦合效应的影响。【结果】添加5 t/hm2和10 t/hm2生物炭处理明显提高了土壤总孔隙度和持水能力，并减少了土壤铵态氮和硝态氮的淋洗，10 t/hm2下效果最佳。同时，5 t/hm2和10 t/hm2生物炭可促进夏玉米根系生长，提高籽粒...
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不同水氮条件下生物炭对夏玉米水氮耦合效应的影响
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TN_cdi_wanfang_journals_ggps202201011
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https://devfeature-collection.sl.nsw.gov.au/record/TN_cdi_wanfang_journals_ggps202201011
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1672-3317
DOI
10.13522/j.cnki.ggps.2021295
