| 赖睿特,杨涵博,张克强,沈丰菊,高文萱,赵迪,梁军锋,王风.硝化/脲酶抑制剂和生物质炭联合施用对养殖肥液滴灌土壤氮淋失及油菜品质的影响[J].农业环境科学学报,2019,38(12):2808-2815. |
| 硝化/脲酶抑制剂和生物质炭联合施用对养殖肥液滴灌土壤氮淋失及油菜品质的影响 |
| Effects of combined application of nitrification/urease inhibitor and biochar on soil nitrogen leaching and quality of Brassica campestris after digested slurry drip irrigation |
| 投稿时间：2019-09-12 |
| DOI：10.11654/jaes.2019-0989 |
| 中文关键词: 养殖肥液 硝化抑制剂 脲酶抑制剂 生物质炭 硝态氮淋失 |
| 英文关键词: digested slurry nitrification inhibitors urease inhibitors biochar nitrate leaching |
| 基金项目:国家重点研发计划项目（2017YFD0800403）；天津市自然科学基金项目（16JCYBJC29700） |
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| 中文摘要: |
| 为探究硝化/脲酶抑制剂、表面活性剂和生物质炭的组合施用对养殖肥液滴灌后土壤不同形态氮素淋失及白菜型油菜品质的影响，采用土柱培养试验，设置不同硝化/脲酶抑制剂、表面活性剂和生物质炭的组合方式，共6组处理：单施养殖肥液（CK），养殖肥液+表面活性剂+生物质炭（YB），养殖肥液+双氰胺+氢醌（DH），养殖肥液+双氰胺+氢醌+表面活性剂（DHY），养殖肥液+双氰胺+氢醌+生物质炭（DHB），养殖肥液+双氰胺+氢醌+生物质炭+表面活性剂（DHBY）。结果表明，土壤硝态氮淋失量呈现CK > YB > DH > DHY > DHBY > DHB，油菜的硝酸盐含量呈现CK > YB > DHY > DH > DHBY > DHB，DHB处理下土壤硝态氮的淋失减少27.62%，油菜鲜重和株高分别增加1.42倍和1.29倍，油菜硝酸盐含量降低32.25%。可见硝化/脲酶抑制剂和生物质炭组合模式能更好地防控养殖肥液滴灌过程中土壤氮素的淋失，减少作物中硝酸盐的积累，显著提高作物品质。 |
| 英文摘要: |
| To explore the effects of the combined application of nitrification/urease inhibitors, surfactants, and biochar on different forms of nitrogen leaching and plant quality in Brassica campestris after digested slurry drip irrigation, a soil column culture experiment was conducted with different combinations of application. A total of six treatments were performed with combinations of inhibitor, surfactant, and biomass carbon:single application of digested slurry(CK), digested slurry + surfactant + biochar(YB), digested slurry + dicyandiamide + hydroquinone(DH), digested slurry + dicyandiamide + hydroquinone + surfactant(DHY), digested slurry + dicyandiamide + hydroquinone + biochar(DHB), and digested slurry + dicyandiamide + hydroquinone + biochar + surfactant(DHBY). The amount of soil nitrate leaching showed the trend of CK > YB > DH > DHY > DHBY > DHB and the nitrate content in Brassica campestris showed the trend of CK > YB > DHY > DH > DHBY > DHB. Compared with CK, DHB treatment reduced soil nitrate leaching by 27.62% and the fresh weight of Brassica campestris was increased 1.42-fold and plant height by 1.29-fold; the nitrate content in Brassica campestris was decreased by 32.25%. It is suggested that the combination of nitrification/urease inhibitor and biochar is more effective in preventing and controlling soil nitrate leaching, reducing nitrate accumulation in crops, and significantly improving crop quality. |
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