Search claims · PlantClaims

Associationobservedoriginal resultmeasured

Claim · model-written summary

The effect of precipitation on soil organic matter, nitrogen and phosphorus decreased in the order of soil total nitrogen, organic matter, total phosphorus, available nitrogen and available phosphorus.

Treatment: precipitatione1
Outcome: soil organic matter, nitrogen and phosphoruse1
Qualifier: decreased with soil total nitrogen, soil organic matter, soil total phosphorus, soil available nitrogen and soil available phosphoruse1

Not reportedTaxonDirection

Verbatim

e1
“The effect of precipitation on soil organic matter, nitrogen and phosphorus decreased with soil total nitrogen, soil organic matter, soil total phosphorus, soil available nitrogen and soil available phosphorus”
✓ located verbatim in the source · abstract, characters 582–791

Title

Distribution of organic matter、nitrogen and phosphorus along an altitude gradient and productivity change and their relationships with environmental factors in the Alpine meadow

Changting Wang; Long Rui-jun; Qiji Wang; et al. Acta Pratacultural Science 2005

Other claims from this paper (5)

Associationobservedoriginal resultmeasured

Claim · model-written summary

The effect of temperature on soil organic matter, nitrogen and phosphorus decreased in the order of soil available nitrogen, organic matter, total nitrogen, total phosphorus and available phosphorus.

Treatment: temperaturee1
Outcome: soil organic matter, nitrogen and phosphoruse1
Qualifier: decreased with soil available nitrogen, soil organic matter, soil total nitrogen, soil total phosphorus, and soil available phosphoruse1

Not reportedTaxonDirection

Verbatim

e1
“The effect of temperature on soil organic matter, nitrogen and phosphorus decreased with soil available nitrogen, soil organic matter, soil total nitrogen, soil total phosphorus, and soil available phosphorus”
✓ located verbatim in the source · abstract, characters 793–1001

Title

Distribution of organic matter、nitrogen and phosphorus along an altitude gradient and productivity change and their relationships with environmental factors in the Alpine meadow

Changting Wang; Long Rui-jun; Qiji Wang; et al. Acta Pratacultural Science 2005

Other claims from this paper (5)

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Different straw returns increased soil organic matter, total nitrogen, and alkaline hydrolysis nitrogen.

Taxon: maizeZea mayse1
Treatment: Different strawse0
Outcome: soil organic matter,total nitrogen and alkaline hydrolysis nitrogen contente0
Direction: increasee0

Not reportedComparator

Verbatim

e0
“Different straws can increase soil organic matter,total nitrogen and alkaline hydrolysis nitrogen content”
✓ located verbatim in the source · abstract, characters 313–418

e1
“maize yield and soil fertility”
✓ located verbatim in the source · abstract, characters 76–106

Title

Effects of different crop straw on maize yield and soil fertility.

Zheng YuanHong; Pan GuoYuan; He KaiQiang; et al. 2009

Other claims from this paper (10)

Intervention effect Maize and tobacco straw treatments increased maize yield by 24.82% to 25.69% compared with CK.
Intervention effect Rape and potato straw treatments increased maize yield by 18.40% to 19.44% compared with CK.
Intervention effect Wheat straw treatment increased maize yield by 8.33% compared with CK.
Intervention effect Straw return maintained the balance of active soil P and K.
Intervention effect Tobacco straw had strong ability to increase active soil K.
Intervention effect Maize straw was better at enhancing soil organic matter and N.
Intervention effect Rape straw had the strongest ability to increase soil N.
Intervention effect Potato straw had low ability to increase soil fertility.
Intervention effect Wheat straw had low ability to increase soil fertility.
Mechanism The authors attribute increased maize yield to improved growing characters.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Long-term use of biological-organic fertilizers markedly advanced soil organic matter, soil total nitrogen and alkaline nitrogen

Taxon: cropse1
Treatment: long-term employing biological-organic fertilizerse2
Outcome: soil organic matter, soil total nitrogen and alkaline nitrogene2
Direction: advancede2

Not reportedComparator

Verbatim

e1
“employing biological-organic fertilizers could keep on crops thriving and accelerate dry matter”
✓ located verbatim in the source · abstract, characters 85–180

e2
“Content of soil organic matter, soil total nitrogen and alkaline nitrogen were advanced markedly and soil fertility was improved through long-term employing biological-organic fertilizers”
✓ located verbatim in the source · abstract, characters 182–369

Title

Effect of biological organic fertilizer on crops growth, soil fertility and yield

Ligang Wang 2004

Other claims from this paper (8)

Intervention effect Employing biological-organic fertilizers could keep crops thriving and accelerate dry matter accumulation
Intervention effect Long-term use of biological-organic fertilizers improved soil fertility
Intervention effect Biological-organic fertilizer at 15000 kg/hm2 raised soil organic matter content fastest among all treatments
Intervention effect Crop yields increased steadily and persistently with long-term use of biological-organic fertilizers
Intervention effect Winter wheat average annual yield was 1808 kg/hm2 higher with 15000 kg/hm2 biological-organic fertilizer than with traditional fertilizers
Intervention effect Winter wheat average annual yield was 3652 kg/hm2 higher with 15000 kg/hm2 biological-organic fertilizer than with the control
Intervention effect Summer maize average annual yield was 2668 kg/hm2 higher with 15000 kg/hm2 biological-organic fertilizer than with traditional fertilizers
Intervention effect Summer maize average annual yield was 5062 kg/hm2 higher with 15000 kg/hm2 biological-organic fertilizer than with the control

Associationobservedoriginal resultmeasured

Claim · model-written summary

Soil organic matter and total nitrogen were highly correlated.

Taxon: Forest Vegetationt0
Compound: soil organic matterse6
Outcome: total nitrogene6

Not reportedDirection

Verbatim

t0
“Forest Vegetation”
✓ located verbatim in the source · title, characters 18–35

e6
“soil organic matters and total nitrogen were highly correlated with their contents”
✓ located verbatim in the source · abstract, characters 1897–1979

Title

Synecology of the Forest Vegetation of Yeongjongdo

;;;; The Korean Journal of Ecology 2003. doi:10.5141/jefb.2003.26.5.223

Other claims from this paper (5)

Associationobservedoriginal resultno effectmeasured

Claim · model-written summary

Soil organic matter and total nitrogen were unrelated to chemical fertilizer rate.

Taxon: cropt0
Treatment: chemical fertilizerse0
Outcome: Soil organic matter and total nitrogen contentse0

Not reportedDirection

Verbatim

e0
“Soil organic matter and total nitrogen contents were found unrelated to the application rate of chemical fertilizers”
✓ located verbatim in the source · abstract, characters 892–1008

t0
“Soil Fertility and Crop Yield”
✓ located verbatim in the source · title, characters 75–104

Title

Effects of Organic Manure and Fertilizers Long-Term Located Application on Soil Fertility and Crop Yield

Lin Zhian; Bingqiang Zhao; Liang Yuan; et al. 2009

Other claims from this paper (12)

Intervention effect Chemical fertilizers outperformed organic manure for winter wheat yield in the first 8–10 years.
Intervention effect Organic manure outperformed chemical fertilizers for summer maize yield in the initial period.
Intervention effect Combined chemical fertilizer and manure had a marked effect on wheat yield.
Intervention effect Combined chemical fertilizer and manure had a marked effect on maize yield.
Observation Yields across treatments became similar with prolonged application.
Association Soil organic matter increased over time and with manure application level.
Intervention effect Higher chemical fertilizer application increased available soil nutrients.
Intervention effect Increasing fertilizer application did not improve crop yield.
Intervention effect Organic manure increased soil organic C and N more than chemical fertilizer.
Association Soil organic C and N increased with organic manure rate.
Intervention effect More chemical fertilizer did not improve soil organic C and N.
Intervention effect Over prolonged use, manure improved available soil nutrients more than chemical fertilizer.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Soil total nitrogen and organic matter decreased greatly in cornfields.

Taxon: cornZea mays subsp. mayse0
Outcome: soil total nitrogen and organic mattere0
Direction: decreased greatlye0
Setting: cornfieldse0

Verbatim

e0
“Among the rotation treatments, soil total nitrogen and organic matter decreased greatly in cornfields, while they remained the same or increased slightly in spring wheat fields.”
✓ located verbatim in the source · abstract, characters 1485–1662

Title

Responses of Soil Water, Nitrogen, and Organic Matter to the Alfalfa Crop Rotation in Semiarid Loess Area of China

Jun Wang; Feng-Min Li; Yu Jia Journal of Sustainable Agriculture 2006. doi:10.1300/j064v28n01_10

Other claims from this paper (15)

Intervention effect Millet fields converted from alfalfa grassland had higher soil moisture than alfalfa grassland over two years.
Intervention effect Planting millet was not helpful for soil water restoration in the first year.
Intervention effect planting potatoes changed soil water by 36.0 mm in the second year after alfalfa conversion.
Intervention effect spring wheat changed soil water by 11.3 mm in the second year after alfalfa conversion.
Intervention effect corn changed soil water by −1.3 mm in the second year after alfalfa conversion.
Intervention effect fallow following millet changed soil water by 4.9 mm in the second year after alfalfa conversion.
Recommendation Potatoes were judged the best rotation choice for restoring soil water.
Intervention effect Rotation treatments gave lower soil total nitrogen by 9.9% in 2001 than continuous alfalfa.
Intervention effect Rotation treatments gave lower soil total nitrogen by 21.5% in 2002 than continuous alfalfa.
Intervention effect Rotation treatments gave lower soil organic matter by 46.8% in 2001 than continuous alfalfa.
Intervention effect Rotation treatments gave lower soil organic matter by 28.1% in 2002 than continuous alfalfa.
Intervention effect Rotation treatments gave higher soil mineral nitrogen by 27.2% in 2002 than continuous alfalfa.
Observation Soil total nitrogen and organic matter remained the same or increased slightly in spring wheat fields.
Recommendation Without fertilizer, spring wheat might best maintain soil fertility after alfalfa conversion.
Recommendation Planting corn and other nutrient-demanding crops should be avoided after alfalfa conversion without fertilizer.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Mixture sawing increased soil organic matter, total nitrogen and available potassium.

Taxon: common vetchVicia sativat0
Treatment: mixture sawinge5
Outcome: soil organic matter,total nitrogen and available potassiume5
Direction: increasede5

Not reportedComparator

Verbatim

t0
“Common Vetch-Oat Mixture”
✓ located verbatim in the source · title, characters 15–39

e5
“mixture sawing increased soil organic matter,total nitrogen and available potassium of soil in the experiment”
✓ located verbatim in the source · abstract, characters 636–745

Title

Effects of the Common Vetch-Oat Mixture in the Shannan Region of Tibet

Yang FuYu Xibei nongye xuebao 2007

Other claims from this paper (10)

Intervention effect The vetch-oat mixture increased forage yield and quality.
Intervention effect Forage yield differed significantly among the mixtures at different rates.
Intervention effect The content of CP, EE and NDF differed significantly among the mixtures at different rates.
Intervention effect The content of Ca and P differed significantly among the mixtures at different rates.
Intervention effect The content of ADF did not differ significantly among the mixtures at different rates.
Association As the rate of vetch increased, the content of CP, EE and Ca increased.
Association As the rate of vetch increased, the content of P increased.
Association As the rate of vetch increased, the content of NDF and ADF decreased.
Intervention effect 50% common vetch + 50% oat was the best mixture, with higher forage yield and better quality.
Recommendation The 50:50 ratio could be popularized in the Shannan region of Tibet to improve soil fertility and forage quality.

Associationobservedoriginal resultmeasured

Claim · model-written summary

Soil organic matter, total nitrogen and total phosphorus positively correlated with presence.

Taxon: Eupatorium adenophorumt0
Outcome: presence of this exotic plante0
Direction: positivelye0
Setting: soil organic matter, total nitrogen, total phosphoruse0

Verbatim

e0
“soil organic matter, total nitrogen, total phosphorus are positively (P0.05) correlated to the presence of this exotic plant”
✓ located verbatim in the source · abstract, characters 1296–1420

t0
“Eupatorium adenophorum”
✓ located verbatim in the source · title, characters 26–48

Title

Distribution pat terns of Eupatorium adenophorum along Dian-Mamyer international road and its relation with environmental factors

Ding Zongkai Acta Scientiae Circumstantiae 2008

Other claims from this paper (10)

Associationobservedoriginal resultmeasured

Claim · model-written summary

CEC, total nitrogen, soil organic matter and silt amount correlated with dune community distribution.

Taxon: communitye0
Outcome: community distributione0
Setting: CEC, total nitrogen, soil organic matter, and the amount of silt in soile0

Not reportedDirection

Verbatim

e0
“CEC, total nitrogen, soil organic matter, and the amount of silt in soil have some correlation with community distribution.”
✓ located verbatim in the source · abstract, characters 1230–1353

Title

Vegetation and Soil Properties of the Coastal Sand Dune in Sinduri, Taean Gun

Hokyung Song; Gwansoo Park; Hye‐Rim Park; et al. Journal of the Korea Society of Environmental Restoration Technology 2005

Other claims from this paper (12)

“soil organic matter, total nitrogen”

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