View: List Claim type Research area Organism Taxon as written Decade Paper Studies on the Causes of Rice Yield Decrease Resulting from Continual Direct Sowing Culture : II. In relation to phosphorus nutrition 10 Show all 10 → Intervention effect observed original result positive measured Claim · model-written summary
Increasing phosphorus application lightened the yield decrease to some degree.
increasing the amount of phosphorus application e1 to some degree e1 Not reported Comparator
Verbatim
t0 “Rice Yield Decrease Resulting from Continual Direct Sowing Culture ”
✓ located verbatim in the source · title, characters 25–91 e1 “This yield decrease could be lightened to some degree by increasing the amount of phosphorus application ”
✓ located verbatim in the source · abstract, characters 2274–2378 Other claims from this paper (9) Association observed original result negative measured Claim · model-written summary
The yield decrease under continuous direct sowing occurred only in soils low in available phosphorus.
continuous direct sowing culture e1 decrease of yield e1 only in such soils that were low in available phosphorus content e1 Verbatim
t0 “Rice Yield Decrease Resulting from Continual Direct Sowing Culture ”
✓ located verbatim in the source · title, characters 25–91 e1 “the decrease of yield in the continuous direct sowing culture caused by the shortage of phosphorus absorption could be recognized only in such soils that were low in available phosphorus content ”
✓ located verbatim in the source · abstract, characters 2078–2272 Other claims from this paper (9) Observation observed original result no effect measured Claim · model-written summary
No yield decrease was found in alluvial paddy soil even under continuous direct sowing culture.
continuous direct sowing culture e1 could not be found e1 alluvial paddy soil e0 Verbatim
t0 “Rice Yield Decrease Resulting from Continual Direct Sowing Culture ”
✓ located verbatim in the source · title, characters 25–91 e1 “such decrease could not be found, even under continuous direct sowing culture ”
✓ located verbatim in the source · abstract, characters 2521–2598 e0 “in alluvial paddy soil which was high in available phosphorus ”
✓ located verbatim in the source · abstract, characters 2397–2458 Other claims from this paper (9) The epidemiology of common root rot in Manitou wheat. IV. Appraisal of biomass and grain yield in naturally infected crops 9 Show all 9 → Association observed original result negative measured Claim · model-written summary
Grain yield losses per square metre in 1969 were 30% in summer-fallow checks.
Grain yield losses per square metre e6 decrease inferred e6 summer-fallow checks e6 Verbatim
e0 “common root rot (Cochliobolus sativus ) on plant biomass and grain yield in naturally infected Triticum aestivum cultivar Manitou were studied at Matador, Saskatchewan ”
✓ located verbatim in the source · abstract, characters 15–181 e6 “Grain yield losses per square metre for 1969, 1970, and 1971 summer-fallow checks were 30, 35, and 30%, respectively ”
✓ located verbatim in the source · abstract, characters 1134–1250 Other claims from this paper (11) Association observed original result negative measured Claim · model-written summary
Grain yield losses per square metre in 1970 were 35 in summer-fallow checks.
Grain yield losses per square metre e6 decrease inferred e6 summer-fallow checks e6 Verbatim
e0 “common root rot (Cochliobolus sativus ) on plant biomass and grain yield in naturally infected Triticum aestivum cultivar Manitou were studied at Matador, Saskatchewan ”
✓ located verbatim in the source · abstract, characters 15–181 e6 “Grain yield losses per square metre for 1969, 1970, and 1971 summer-fallow checks were 30, 35, and 30%, respectively ”
✓ located verbatim in the source · abstract, characters 1134–1250 Other claims from this paper (11) Association observed original result negative measured Claim · model-written summary
Grain yield losses per square metre in 1971 were 30% in summer-fallow checks.
Grain yield losses per square metre e6 decrease inferred e6 summer-fallow checks e6 Verbatim
e0 “common root rot (Cochliobolus sativus ) on plant biomass and grain yield in naturally infected Triticum aestivum cultivar Manitou were studied at Matador, Saskatchewan ”
✓ located verbatim in the source · abstract, characters 15–181 e6 “Grain yield losses per square metre for 1969, 1970, and 1971 summer-fallow checks were 30, 35, and 30%, respectively ”
✓ located verbatim in the source · abstract, characters 1134–1250 Other claims from this paper (11) The Alternation of Direct Sowing and Transplanting as a Counterplan for the Rice Yield Decrease due to Continuance of Direct Sowing Culture 9 Show all 9 → Recommendation author interpretation original result basis n/a Claim · model-written summary
The authors concluded that alternating direct sowing and transplanting could counter the yield decline.
alternation of direct sowing and transplanting e0 promising counterplan e0 Verbatim
e0 “the alternation of direct sowing and transplanting was concluded to be a promising counterplan to the rice yield decrease due to the continued direct sowing culture. ”
✓ located verbatim in the source · abstract, characters 1568–1733 t0 “Rice ”
✓ located verbatim in the source · title, characters 76–80 Other claims from this paper (8) Association observed original result measured Claim · model-written summary
The first-year growth and yield advantage was more apparent in well-drained fields.
ill drained one e0 well drained paddy field e0 Verbatim
e0 “These tendency was more apparent in well drained paddy field than in ill drained one. ”
✓ located verbatim in the source · abstract, characters 719–804 t0 “Rice ”
✓ located verbatim in the source · title, characters 76–80 Other claims from this paper (8) Intervention effect observed original result no effect not significant (as stated) measured Claim · model-written summary
Second-year converted plots did not differ significantly from continued sowing plots in growth and yield .
second year plots after converted from transplanting culture e0 growth and yield e0 No significant differences e0 continued direct sowing plots e0 Verbatim
e0 “No significant differences in the growth and yield of direct sowing rice could be found between the second year plots after converted from transplanting culture and the continued direct sowing plots. ”
✓ located verbatim in the source · abstract, characters 808–1007 Other claims from this paper (8) Selection for Early Flowering in Corn: Seven Late Synthetics 8 Show all 8 → Intervention effect observed original result positive measured Claim · model-written summary
Selection for early flowering changed yield by 1.1 q/ha per cycle.
Not reported Comparator
Verbatim
e0 “Selection effect per cycle averaged: 1.1 q/ha yield increase, 2.2 ears/100 p.lants increase (1‐year data), 1.6 percentage points grain moisture decrease , 2.8% stalk breakage increase, 6.1 cm plant height decrease , 4.1 cm ear height decrease , 1.7 days less to flower, and 0.4 days less silk delay. ”
✓ located verbatim in the source · abstract, characters 318–614 e1 “Seven corn ( Zea mays L.) synthetics adapted to southern Iowa ”
✓ located verbatim in the source · abstract, characters 0–61 Other claims from this paper (16) Intervention effect observed original result measured Claim · model-written summary
Selection for early flowering changed plant height by 6.1 cm per cycle.
Not reported Comparator
Verbatim
e0 “Selection effect per cycle averaged: 1.1 q/ha yield increase, 2.2 ears/100 p.lants increase (1‐year data), 1.6 percentage points grain moisture decrease , 2.8% stalk breakage increase, 6.1 cm plant height decrease , 4.1 cm ear height decrease , 1.7 days less to flower, and 0.4 days less silk delay. ”
✓ located verbatim in the source · abstract, characters 318–614 e1 “Seven corn ( Zea mays L.) synthetics adapted to southern Iowa ”
✓ located verbatim in the source · abstract, characters 0–61 Other claims from this paper (16) Intervention effect observed original result measured Claim · model-written summary
Selection for early flowering changed ear height by 4.1 cm per cycle.
Not reported Comparator
Verbatim
e0 “Selection effect per cycle averaged: 1.1 q/ha yield increase, 2.2 ears/100 p.lants increase (1‐year data), 1.6 percentage points grain moisture decrease , 2.8% stalk breakage increase, 6.1 cm plant height decrease , 4.1 cm ear height decrease , 1.7 days less to flower, and 0.4 days less silk delay. ”
✓ located verbatim in the source · abstract, characters 318–614 e1 “Seven corn ( Zea mays L.) synthetics adapted to southern Iowa ”
✓ located verbatim in the source · abstract, characters 0–61 Other claims from this paper (16) Crop Response to Excessive Zinc Fertilization of Alkaline Soil1 7 Show all 7 → Observation observed original result measured Claim · model-written summary
Zn concentration in tops associated with a 20% yield decrease was 740 ppm for sugarbeet.
Zinc concentrations in tops associated with a 20% YD e0 Verbatim
e0 “Zinc concentrations in tops associated with a 20% YD ranged from 240 ppm for field bean to 740 ppm for sugarbeet ”
✓ located verbatim in the source · abstract, characters 925–1037 Other claims from this paper (7) Intervention effect Grass species were the most sensitive to added soil Zn, with maximum dry matter yield decreases greater than 40%. Intervention effect Alfalfa, Alaska pea, tomato, lettuce, spinach and sugarbeet had dry matter yield decreases between 20 and 40% under added soil Zn. Intervention effect Field bean, snap bean, russet potato, white potato, clover and Perfection pea did not undergo a significant dry matter yield decrease under added soil Zn. Observation Zn concentration in tops associated with a 20% yield decrease was 240 ppm for field bean. Observation For most crops, Zn concentration in tops associated with a 20% yield decrease fell in a 400 to 600 ppm range. Observation The most sensitive species tolerated Zn additions of 200 to 300 ppm before undergoing a significant yield decrease. Observation Crops with a significant yield decrease from excess Zn were stunted but showed no discoloration, malformation or necrosis indicative of direct metal toxicity. Observation observed original result measured Claim · model-written summary
Zn concentration in tops associated with a 20% yield decrease was 240 ppm for field bean.
Zinc concentrations in tops associated with a 20% YD e0 Verbatim
e0 “Zinc concentrations in tops associated with a 20% YD ranged from 240 ppm for field bean to 740 ppm for sugarbeet ”
✓ located verbatim in the source · abstract, characters 925–1037 Other claims from this paper (7) Intervention effect Grass species were the most sensitive to added soil Zn, with maximum dry matter yield decreases greater than 40%. Intervention effect Alfalfa, Alaska pea, tomato, lettuce, spinach and sugarbeet had dry matter yield decreases between 20 and 40% under added soil Zn. Intervention effect Field bean, snap bean, russet potato, white potato, clover and Perfection pea did not undergo a significant dry matter yield decrease under added soil Zn. Observation Zn concentration in tops associated with a 20% yield decrease was 740 ppm for sugarbeet. Observation For most crops, Zn concentration in tops associated with a 20% yield decrease fell in a 400 to 600 ppm range. Observation The most sensitive species tolerated Zn additions of 200 to 300 ppm before undergoing a significant yield decrease. Observation Crops with a significant yield decrease from excess Zn were stunted but showed no discoloration, malformation or necrosis indicative of direct metal toxicity. Observation observed original result significant (as stated) measured Claim · model-written summary
The most sensitive species tolerated Zn additions of 200 to 300 ppm before undergoing a significant yield decrease .
most sensitive species e0 tolerated Zn additions e0 before undergoing a significant YD e0 Verbatim
e0 “The most sensitive species tolerated Zn additions of 200 to 300 ppm before undergoing a significant YD ”
✓ located verbatim in the source · abstract, characters 1090–1192 Other claims from this paper (7) Intervention effect Grass species were the most sensitive to added soil Zn, with maximum dry matter yield decreases greater than 40%. Intervention effect Alfalfa, Alaska pea, tomato, lettuce, spinach and sugarbeet had dry matter yield decreases between 20 and 40% under added soil Zn. Intervention effect Field bean, snap bean, russet potato, white potato, clover and Perfection pea did not undergo a significant dry matter yield decrease under added soil Zn. Observation Zn concentration in tops associated with a 20% yield decrease was 240 ppm for field bean. Observation Zn concentration in tops associated with a 20% yield decrease was 740 ppm for sugarbeet. Observation For most crops, Zn concentration in tops associated with a 20% yield decrease fell in a 400 to 600 ppm range. Observation Crops with a significant yield decrease from excess Zn were stunted but showed no discoloration, malformation or necrosis indicative of direct metal toxicity. Nitrogen nutritional studies with flower-bulb crops 7 Show all 7 → Intervention effect observed original result negative measured Claim · model-written summary
Absorbed nitrogen at stage III decrease d the main bulb yield .
absorbed nitrogen e2 Not reported Comparator
Verbatim
e0 “growth and the yield of Dutch iris ”
✓ located verbatim in the source · abstract, characters 259–293 e1 “5.5±0.2g bulbs of cv.‘Wedg-Wood’in sand culture ”
✓ located verbatim in the source · abstract, characters 303–350 e2 “The effects of absorbed nitrogen of each stages on the production of the bulbs were shown in Tables 5 and 6, i.e., stage I, non-effective or rather decrease the yield ”
✓ located verbatim in the source · abstract, characters 2529–2695 e3 “stage III, decrease the main bulb yield , but tend to increase the lateral bulbs yield ”
✓ located verbatim in the source · abstract, characters 2797–2882 Other claims from this paper (19) Intervention effect observed original result negative measured Claim · model-written summary
Absorbed nitrogen at stage IV decrease d the main bulb yield .
absorbed nitrogen e2 Not reported Comparator
Verbatim
e0 “growth and the yield of Dutch iris ”
✓ located verbatim in the source · abstract, characters 259–293 e1 “5.5±0.2g bulbs of cv.‘Wedg-Wood’in sand culture ”
✓ located verbatim in the source · abstract, characters 303–350 e2 “The effects of absorbed nitrogen of each stages on the production of the bulbs were shown in Tables 5 and 6, i.e., stage I, non-effective or rather decrease the yield ”
✓ located verbatim in the source · abstract, characters 2529–2695 e3 “stage IV, decrease the main bulb yield , but tend to increase the lateral bulbs yield ”
✓ located verbatim in the source · abstract, characters 2974–3058 Other claims from this paper (19) Intervention effect observed original result negative measured Claim · model-written summary
Absorbed nitrogen at stage I was non-effective or decrease d the bulb yield .
absorbed nitrogen e2 non-effective or rather e2 Not reported Comparator
Verbatim
e0 “growth and the yield of Dutch iris ”
✓ located verbatim in the source · abstract, characters 259–293 e1 “5.5±0.2g bulbs of cv.‘Wedg-Wood’in sand culture ”
✓ located verbatim in the source · abstract, characters 303–350 e2 “The effects of absorbed nitrogen of each stages on the production of the bulbs were shown in Tables 5 and 6, i.e., stage I, non-effective or rather decrease the yield ”
✓ located verbatim in the source · abstract, characters 2529–2695 Other claims from this paper (19) Intervention effect observed original result positive measured Claim · model-written summary
Selection only for early flowering increased corn yield by 1.00 q/ha per cycle.
selection only for early flowering e1 Not reported Comparator
Verbatim
e0 “Three late, serai‐exotic corn ( Zea mays L.) synthetics were selected (5% level) for early silking by sib‐mating over a six‐generation period; then the seven cycles (including original forms) were compared in performance trials at three plant densities over 2 years ”
✓ located verbatim in the source · abstract, characters 0–265 e1 “Virtually every ' trait measured changed significantly due to selection only for early flowering. ”
✓ located verbatim in the source · abstract, characters 267–364 e2 “Effect per cycle averaged: 1.00 q/ha yield increase; 1.2 points of percent H 2 O decrease ; 2.8% stalk breakage increase; 7.2‐cm plant height decrease ; 5.2‐cm ear height decrease ; 1.8 days less to flower; and 0.3 days less silk delay. ”
✓ located verbatim in the source · abstract, characters 365–598 Other claims from this paper (9) Intervention effect observed original result measured Claim · model-written summary
Selection only for early flowering decrease d plant height by 7.2 cm per cycle in corn.
selection only for early flowering e1 Not reported Comparator
Verbatim
e0 “Three late, serai‐exotic corn ( Zea mays L.) synthetics were selected (5% level) for early silking by sib‐mating over a six‐generation period; then the seven cycles (including original forms) were compared in performance trials at three plant densities over 2 years ”
✓ located verbatim in the source · abstract, characters 0–265 e1 “Virtually every ' trait measured changed significantly due to selection only for early flowering. ”
✓ located verbatim in the source · abstract, characters 267–364 e2 “Effect per cycle averaged: 1.00 q/ha yield increase; 1.2 points of percent H 2 O decrease ; 2.8% stalk breakage increase; 7.2‐cm plant height decrease ; 5.2‐cm ear height decrease ; 1.8 days less to flower; and 0.3 days less silk delay. ”
✓ located verbatim in the source · abstract, characters 365–598 Other claims from this paper (9) Intervention effect observed original result measured Claim · model-written summary
Selection only for early flowering decrease d ear height by 5.2 cm per cycle in corn.
selection only for early flowering e1 Not reported Comparator
Verbatim
e0 “Three late, serai‐exotic corn ( Zea mays L.) synthetics were selected (5% level) for early silking by sib‐mating over a six‐generation period; then the seven cycles (including original forms) were compared in performance trials at three plant densities over 2 years ”
✓ located verbatim in the source · abstract, characters 0–265 e1 “Virtually every ' trait measured changed significantly due to selection only for early flowering. ”
✓ located verbatim in the source · abstract, characters 267–364 e2 “Effect per cycle averaged: 1.00 q/ha yield increase; 1.2 points of percent H 2 O decrease ; 2.8% stalk breakage increase; 7.2‐cm plant height decrease ; 5.2‐cm ear height decrease ; 1.8 days less to flower; and 0.3 days less silk delay. ”
✓ located verbatim in the source · abstract, characters 365–598 Other claims from this paper (9) Profile Modification and Root Yield, Distribution, and Activity1 7 Show all 7 → Intervention effect observed original result measured Claim · model-written summary
Deep plowing tended to decrease root yield of sudangrass.
Not reported Comparator
Verbatim
e1 “Deep plowing tended to decrease root yield s of sudangrass ( Sorghum sudanense ), sugarbeets, ( Beta vulgaris ), and soybeans ( Glycine max ) but had little effect on those of cabbage ( Brassica oleracea var. ‘capitata’) ”
✓ located verbatim in the source · abstract, characters 441–660 Other claims from this paper (11) Intervention effect observed original result measured Claim · model-written summary
Deep plowing tended to decrease root yield of sugarbeets.
Not reported Comparator
Verbatim
e1 “Deep plowing tended to decrease root yield s of sudangrass ( Sorghum sudanense ), sugarbeets, ( Beta vulgaris ), and soybeans ( Glycine max ) but had little effect on those of cabbage ( Brassica oleracea var. ‘capitata’) ”
✓ located verbatim in the source · abstract, characters 441–660 Other claims from this paper (11) Intervention effect observed original result measured Claim · model-written summary
Deep plowing tended to decrease root yield of soybeans.
Not reported Comparator
Verbatim
e1 “Deep plowing tended to decrease root yield s of sudangrass ( Sorghum sudanense ), sugarbeets, ( Beta vulgaris ), and soybeans ( Glycine max ) but had little effect on those of cabbage ( Brassica oleracea var. ‘capitata’) ”
✓ located verbatim in the source · abstract, characters 441–660 Other claims from this paper (11) Relationship between Grain Yield and Environmental Variability in Oats (Avena sp.)1 6 Show all 6 → Association observed original result measured Claim · model-written summary
The 1964 correlation between oat population yield and yield variability was −.24.
variability in yield e1 decrease inferred e1 Gainesville, Fla e0 Verbatim
t0 “Environmental Variability in Oats (Avena sp.) ”
✓ located verbatim in the source · title, characters 37–82 e0 “The yield of 94 populations consisting of 89 homozygous and homogeneous lines and five recommended varieties was tested for 6 years at Gainesville, Fla ”
✓ located verbatim in the source · abstract, characters 0–151 e1 “The r values between the yield of the 94 populations and their variability in yield over the 6 years ”
✓ located verbatim in the source · abstract, characters 153–253 e2 “1964 = −.24* ”
✓ located verbatim in the source · abstract, characters 271–283 Other claims from this paper (7) Association observed original result measured Claim · model-written summary
The 1965 correlation between oat population yield and yield variability was −.79.
variability in yield e1 decrease inferred e1 Gainesville, Fla e0 Verbatim
t0 “Environmental Variability in Oats (Avena sp.) ”
✓ located verbatim in the source · title, characters 37–82 e0 “The yield of 94 populations consisting of 89 homozygous and homogeneous lines and five recommended varieties was tested for 6 years at Gainesville, Fla ”
✓ located verbatim in the source · abstract, characters 0–151 e1 “The r values between the yield of the 94 populations and their variability in yield over the 6 years ”
✓ located verbatim in the source · abstract, characters 153–253 e3 “1965 = −.79** ”
✓ located verbatim in the source · abstract, characters 285–298 Other claims from this paper (7) Association observed original result measured Claim · model-written summary
The 1967 correlation between oat population yield and yield variability was −.39.
variability in yield e1 decrease inferred e1 Gainesville, Fla e0 Verbatim
t0 “Environmental Variability in Oats (Avena sp.) ”
✓ located verbatim in the source · title, characters 37–82 e0 “The yield of 94 populations consisting of 89 homozygous and homogeneous lines and five recommended varieties was tested for 6 years at Gainesville, Fla ”
✓ located verbatim in the source · abstract, characters 0–151 e1 “The r values between the yield of the 94 populations and their variability in yield over the 6 years ”
✓ located verbatim in the source · abstract, characters 153–253 e5 “1967 = −.39** ”
✓ located verbatim in the source · abstract, characters 312–325 Other claims from this paper (7) Studies on the Causes of Rice Yield Decrease Resulting from Continual Direct Sowing Culture : III. In Relation to the nitrogen supplying potentiality of soil 6 Show all 6 → Association observed original result negative measured Claim · model-written summary
Rice yield tended to decrease as continual direct sowing continued and soil nitrogen supply fell.
continuance of direct sowing culture e0 fall of nitrogen supplying potentiality of soil e0 Verbatim
e0 “There was observed a tendency of rice yield decrease by the continuance of direct sowing culture accompanied with the fall of nitrogen supplying potentiality of soil ”
✓ located verbatim in the source · abstract, characters 1438–1603 Other claims from this paper (5) Mechanism author interpretation original result negative measured Claim · model-written summary
The authors concluded that falling soil nitrogen supply was one cause of rice yield decline.
fall of nitrogen supplying potentiality of soil e0 Not reported Taxon
Verbatim
e0 “the fall of nitrogen supplying potentiality of soil must be one of the causes of the yield decrease in the continuous direct sowing culture ”
✓ located verbatim in the source · abstract, characters 1656–1795 Other claims from this paper (5) Recommendation author interpretation original result positive basis n/a Claim · model-written summary
The authors recommended compost to inhibit rice yield decline under continual direct sowing.
supply of such organic substances as compost e0 Verbatim
e0 “the supply of such organic substances as compost should be necessary to inhibit the decrease of rice yield in the continual direct sowing culture ”
✓ located verbatim in the source · abstract, characters 1966–2111 Other claims from this paper (5) 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.
Oryza sativat0
Triticum aestivum
Zea mays
Beta vulgaris subsp. vulgaris
Iris
Sorghum
Glycine max
Avena sativa