Reimer M, Farenhorst A, Gaultier J
Department of Soil Science, University of Manitoba, Winnipeg, Manitoba, Canada.
J Environ Sci Health B. 2005;40(4):605-17. doi: 10.1081/PFC-200061562.
Manure additions to soil may alter soil chemical, physical, and biological characteristics, and thereby change pesticide fate processes in soil. This is the first study to examine the impact of liquid hog manure amendments on glyphosate and trifluralin mineralization in soil. Experiments were conducted in soil microcosms in the laboratory for a total of 332 (glyphosate) and 430 (trifluralin) days. The rate and amount of mineralization of both glyphosate and trifluralin were significantly influenced by the additions of fresh manure to soil in the laboratory and by the history of manure applications in the field. However, the maximum difference in herbicide mineralization between soils that were free of manure application and those amended with manure in the field or in the laboratory was only 6.1% and 7.3% of that initially applied, for trifluralin and glyphosate, respectively. Therefore, we conclude that liquid hog manure application to soil will have no significant effect on the mineralization of glyphosate and trifluralin under field conditions.
向土壤中添加粪肥可能会改变土壤的化学、物理和生物学特性，从而改变农药在土壤中的归宿过程。这是第一项研究液体猪粪改良剂对土壤中草甘膦和氟乐灵矿化影响的研究。在实验室的土壤微观世界中进行了总共332天（草甘膦）和430天（氟乐灵）的实验。草甘膦和氟乐灵的矿化速率和矿化量在实验室中受到向土壤中添加新鲜粪肥以及田间粪肥施用历史的显著影响。然而，对于氟乐灵和草甘膦，未施用粪肥的土壤与在田间或实验室中用粪肥改良的土壤之间除草剂矿化的最大差异分别仅为最初施用剂量的6.1%和7.3%。因此，我们得出结论，在田间条件下，向土壤中施用液体猪粪对草甘膦和氟乐灵的矿化不会产生显著影响。
