View: List Claim type Research area Organism Taxon as written Decade Paper Observation observed original result measured Claim · model-written summary
Between-year corn yield variability was about four times between-plot variability .
Yield variability e0 Verbatim
e0 “Yield variability among years was approximately three times greater for soybean and four times greater for corn than was variability among plots (Table ) ”
✓ located verbatim in the source · abstract, characters 4944–5097 t0 “Corn and Soybean ”
✓ located verbatim in the source · title, characters 46–62 Other claims from this paper (10) Observation observed original result measured Claim · model-written summary
Between-year soybean yield variability was about three times between-plot variability .
Yield variability e0 approximately three times e0 Verbatim
e0 “Yield variability among years was approximately three times greater for soybean and four times greater for corn than was variability among plots (Table ) ”
✓ located verbatim in the source · abstract, characters 4944–5097 t0 “Corn and Soybean ”
✓ located verbatim in the source · title, characters 46–62 Other claims from this paper (10) Observation observed original result measured Claim · model-written summary
Corn-soybean rotation plots showed similar yield variability .
corn‐soybean rotation e0 Verbatim
e0 “Similar results were observed for the plots in the corn‐soybean rotation ”
✓ located verbatim in the source · abstract, characters 1632–1704 t0 “Corn and Soybean ”
✓ located verbatim in the source · title, characters 46–62 Other claims from this paper (10) Mechanism author interpretation original result measured Claim · model-written summary
In a less productive year, spatial nutrient variability may make little difference to crop yield .
spatial variability of any nutrient e0 Verbatim
e0 “In a less productive year, spatial variability of any nutrient may not make much difference in crop yield of a given field. ”
✓ located verbatim in the source · abstract, characters 1802–1925 Other claims from this paper (6) Intervention effect observed original result no effect measured Claim · model-written summary
Soil fertility amendments did not alleviate yearly maize yield variability .
Soil fertility amendments e0 year‐to‐year variability observed in the corn ( Zea mays L.) yield e0 did not alleviate e0 Not reported Comparator
Verbatim
e0 “Soil fertility amendments did not alleviate year‐to‐year variability observed in the corn ( Zea mays L.) yield ”
✓ located verbatim in the source · abstract, characters 1372–1482 Other claims from this paper (5) Observation observed original result negative measured Claim · model-written summary
Grain yield maps from four previous years could only account for 46% of the 1995 grain yield variability .
1995 grain yield variability e6 Grain yield maps for four previous years could only account for e6 Verbatim
t0 “Corn Grain Yield s ”
✓ located verbatim in the source · title, characters 34–51 e6 “Grain yield maps for four previous years could only account for 46% of the 1995 grain yield variability ”
✓ located verbatim in the source · abstract, characters 5786–5889 Other claims from this paper (7) Observation observed original result positive measured Claim · model-written summary
Soybean yield rose about twofold from 1930 to 1990.
Verbatim
e0 “From 1930 to 1990, yield of all crops increased, ranging from about twofold in soybean [ Glycine max (L.) Merr.], oat ( Avena sativa L.), and barley ( Hordeum vulgare L.) to about sixfold in maize ( Zea mays L.). ”
✓ located verbatim in the source · abstract, characters 946–1158 e4 “Temporal variability in average crop yield in the USA was much smaller than typical spatial variability values reported by others for soil parameters. ”
✓ located verbatim in the source · abstract, characters 1822–1972 Other claims from this paper (9) Observation author interpretation original result measured Claim · model-written summary
Grain yield variability can be substantial even in intensively managed fields believed to be uniform.
grain yield variability e7 can be substantial even in intensively managed fields believed to be uniform e7 Verbatim
t0 “Corn Grain Yield s ”
✓ located verbatim in the source · title, characters 34–51 e7 “The information from this study suggests that grain yield variability can be substantial even in intensively managed fields believed to be uniform ”
✓ located verbatim in the source · abstract, characters 6091–6237 Other claims from this paper (7) Recommendation author interpretation original result basis n/a Claim · model-written summary
The authors conclude that site-specific yield -map fertilizer recommendations may not be possible without identifying causes of yield variability .
fertilizer recommendations on a site specific basis e7 without identifying agents causing the grain yield variability e7 Verbatim
t0 “Corn Grain Yield s ”
✓ located verbatim in the source · title, characters 34–51 e7 “Using grain yield maps for fertilizer recommendations on a site specific basis may not be possible without identifying agents causing the grain yield variability ”
✓ located verbatim in the source · abstract, characters 6419–6580 Other claims from this paper (7) Observation observed original result negative measured Claim · model-written summary
Previous-year grain yield s accounted for only 4 to 42% of the grain yield variability in a given year.
grain yield variability e5 accounted for by a knowledge of the grain yields from a previous year e5 Verbatim
t0 “Corn Grain Yield s ”
✓ located verbatim in the source · title, characters 34–51 e5 “Only 4 to 42% of the grain yield variability for a given year is accounted for by a knowledge of the grain yield s from a previous year ”
✓ located verbatim in the source · abstract, characters 1585–1719 Other claims from this paper (7) Lexical search (BM25). All words must match; if nothing does, any word. Organism names also match every spelling of the same organism. No semantic search yet.
Zea mays subsp. mayst0
Glycine max