| 汤鸣强 1，2，沈凤娟 1
，姚源琼 3，曹 智，林茂兹.喷施宝叶面肥对农药胁迫下土壤脲酶活性的影响[J].广东农业科学,2019,46(1):58-63 |
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喷施宝叶面肥对农药胁迫下土壤脲酶活性的影响 |
| Effects of Penshibao Foliar Fertilizer on Soil Urease Activity Under Pesticide Stress |
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| DOI：10.16768/j.issn.1004-874X.2019.01.009 |
| 中文关键词: 喷施宝 叶面肥 农药 茶园土壤 脲酶活性 |
| 英文关键词: Penshibao foliar fertilizer pesticide tea garden soil urease activity |
| 基金项目:福建省自然科学基金（2012J01118） |
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| 中文摘要: |
| 【目的】科学合理评价水溶性有机肥及杀虫剂的环境效应，探讨叶面肥喷施宝对 3 种农药（哒螨
灵、联苯菊酯、毒死蜱）胁迫下茶园土壤脲酶活性的影响。【方法】模拟茶园喷施农药，采用苯酚 - 次氯酸钠
比色法测定土壤脲酶活性。【结果】试验早期哒螨灵对茶园土壤脲酶活性影响不显著，后期表现为激活效应，
脲酶活性比空白对照（喷施清水）高 23%。整个试验周期联苯菊酯未对茶园土壤的脲酶活性产生显著影响。叶
面肥喷施宝对哒螨灵或联苯菊酯胁迫下茶园土壤脲酶活性的影响表现为先明显抑制后逐渐减弱，最终恢复到原
有水平。试验早期，喷施宝复配哒螨灵两个处理的脲酶活性分别比空白对照下降 22%、24%，比单施哒螨灵下
降 25%、23%。喷施宝复配联苯菊酯处理的脲酶活性比对空白对照下降 17%，比单施联苯菊酯下降 15%。毒死
蜱和叶面肥喷施宝对茶园土壤脲酶活性的影响均表现为先显著抑制后逐渐恢复的效应，试验早期叶面肥喷施宝
对毒死蜱胁迫下脲酶活性的抑制作用有所缓解。【结论】叶面肥喷施宝复配 3 种杀虫剂的使用对茶园土壤脲酶
活性产生不同影响。 |
| 英文摘要: |
| 【Objective】The environmental effects of water-soluble organic fertilizer and insecticides were
evaluated in scientific and reasonable way, with an aim to delve into, the effect of Penshibao foliar fertilizer on the soil urease
activity in the tea garden under three pesticide stresses (Pyridaben, Bifenthrin and Chlorpyrifos).【Method】The study was
carried out by simulating the application of pesticide in tea garden and the soil urease activity was determined by phenol
sodium hypochlorite colorimetric method.【Result】At the early stage of the experiment, Pyridaben had an insignificant
effect on soil the urease activity, and showed an activating effect in the later stage, with the urease activity 23% higher than
the control sample. Bifenthrin had an insignificant effect on the urease activity throughout the experiment. The significant
inhibiting effect of Penshibao foliar fertilizer on the soil urease activity under the stress of Pyridaben or Bifenthrin weakened
gradually, and finally returned to the original level. At the early stage of the experiment, upon applying the compound of Penshibao and Pyridaben, the urease activity reduced by 22% and 24% compared with the control sample, respectively, and
by 25% and 23% compared with application of Pyridaben. Upon applying the compound of Penshibao and Bifenthrin, the
urease activity decreased by 17% compared with the control sample, and by 15% compared with application of Bifenthrin. The
inhibiting effect of both Chlorpyrifos and Penshibao foliar fertilizer on the soil urease activity in the tea garden was significant at
the beginning, and then showed a gradual recovery. The early inhibiting effect of Penshibao foliar fertilizer on the urease activity
under the stress of Chlorpyrifos was relieved. 【Conclusion】The use of compounding Penshibao foliar fertilizer with the three
insecticides had different effects on soil the urease activity in tea garden. |
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