Claim · model-written summary
Weather conditions, through rainfall amount and distribution, strongly affected the magnitude of residual K effects.
- Taxon
- Corn
Zea mays subsp. mayse0 - Treatment
- Weather conditionse2
- Outcome
- magnitude of residual K effectse2
- Qualifier
- affected stronglye2
Not reportedDirection
Verbatim
e0“on a light loam calcareous Mollisol, having 23% clay content, with Illite clay mineral dominance. The soil is moderately supplied K. Corn as test plant was sown in monoculture in the trial. The first 10 years are evaluated in the paper. Soil K-test/AL-K/values did not decrease in the first 6 years, but diminished in the 7–10th years. The light loam soil did not fix the added fertilizer-K strongly.”
e2“The residual effect of build-up K doses was measurable even after the 10th year. Weather conditions, i.e., the amount and distribution of rainfall during the vegetation period, affected strongly the magnitude of residual K effects.”
Title
Péter Csathó Communications in Soil Science and Plant Analysis 2002. doi:10.1081/css-120014509
Other claims from this paper (12)
- Association Soil AL-K values did not decrease in the first 6 years of the trial.
- Association Soil AL-K values diminished in years 7 to 10 of the trial.
- Association The light loam soil did not fix added fertilizer-K strongly.
- Association Yield losses due to K-shortage started when AL-K values dropped below 150 mg K kg−1 soil.
- Association The 1440 kg K2O/ha initial dose provided appropriate corn yield levels for 10 years.
- Association The 960 kg K2O/ha build-up dose provided appropriate corn yield levels for 6 years.
- Association The 480 kg K2O/ha build-up dose provided appropriate corn yield levels for 4 years.
- Association The 240 kg K2O/ha build-up dose provided appropriate corn yield levels for 1 year.
- Observation The residual effect of build-up K doses was measurable even after the 10th year.
- Observation AL-K test values and flowering-stage leaf K concentrations indicated soil and plant K supply similarly across K levels and years.
- Association Residual K effects can be hindered by previous K application, drought, or efficient soil-K use by hybrids.
- Recommendation Soil and plant K analyses are useful tools for adapting long-term field trial results to developing fertilizer recommendations.