Claim · model-written summary
The decrease in yield of peas and potatoes was accompanied by significant cyclical fluctuations with a period of approximately 7 years.
- Taxon
- peas and potatoes
Lathyrus oleraceus
Solanum tuberosume0 - Outcome
- cyclical fluctuationse3
- Value
- approximately 7 yearse3
Verbatim
e0“The data of 44-year field experiments with permanent crops of peas and potatoes in the chernozems of the Kursk Oblast are analyzed”
e3“The decrease in yield was accompanied by significant cyclical fluctuations with a period of mainly approximately 7 years”
Title
A. S. Frid Агрохимия / Agricultural Chemistry 2025. doi:10.7868/s3034496425110097
Other claims from this paper (7)
- Observation Long-term yield of pea grains showed a significantly decreasing trend, reaching consistently low levels.
- Observation Long-term yield of potato tubers showed a significantly decreasing trend, reaching consistently low levels.
- Association A decreasing trend in yield of peas and potatoes may correlate with a decreasing trend in solar activity over the same period.
- Observation The yield cycle duration of peas and potatoes is close to the cycles of weather conditions in the area.
- Observation Long-term yield dynamics of the fertilizer and control variants differed significantly from each other.
- Intervention effect Only the control potato variant differed significantly from the fertilizer variants in average long-term yield.
- Method / resource The second approach to comparing options was more crude than the first.