The phrase "are persistent in the soil" is correct and usable in written English.
It can be used to describe something, such as a substance or organism, that remains or continues to exist in the soil over time.
Example: "Certain chemicals are persistent in the soil, leading to long-term environmental concerns."
Alternatives: "remain in the soil" or "linger in the soil".
Picloram is well known for being persistent in the soil although its persistence alone was not tested here.
We could clearly show that Cry-proteins are persistent in the rhizosphere and that more attention should be payed to their fate especially in complex and dynamic soil ecosystems such as paddy soils.
Despite having not been licensed for use in the EU for 10 years this molecule and its metabolites are persistent in water and soil, and it remains a major contaminant of environmental samples (Jablonowski et al., 2011).
For example, volatile species emitted into the air may or may not be persistent in the environment; therefore, some of these species will not be found in the water and soil.
Moreover, we show system (1.3) is persistent in the mean.
Be persistent in the nicest way possible.
None of the geometric means for dissipation of CPY in soils under field conditions exceeded the threshold to be classified as being persistent in soils under the SC or EC Regulation No. 1107/2009.
Hence, despite its biodegradability, tylosin can be persistent in field soils where dissipation may be much slower than under laboratory conditions.
The geometric means of half-lives of CPY in soils, sediments, and surface waters were less than the thresholds for classification of a compound as being persistent in soils, sediments, and water under the SC or EC Regulation No. 1107/2009.
Although the use of leaded petrol and lead paint and burning of bituminous coal have been phased out in Ireland, Pb from these sources is persistent in soils and continuing sources remain in surfaces painted with lead paint, building materials and waste disposal.
