Abstract
Study on crop stubbles to alleviate the damages by continuous cropping soybean was conducted in Longzhen Farm in 2004 and 2005.The experiment was carried out by completely random design with 3 replications.Three treatment of soybean continuous cropping for 2 and 3 years in alfalfa(SCCA),in maize(SCCM)and in soybean stubble(SCCS)were adopted respectively in 2004 and 2005,and each treatment consisted of 5 rows with 10 m length and 65 cm width.The result showed that seed yield of SCCA for 2 and 3 years increased 8.4% and 6.6% than that of SCCM respectively,significantly increased 26.7% and 27.5% than that of SCCS respectively;seed yield of SCCM for 2 and 3 years significantly increased 16.9% and 19.6% than that of SCCS respectively.Compared with SCCS for 3 years,plant height of SCCA and SCCM significantly increased 19.5 cm and 13.8 cm,respectively;seed weight per plant of SCCA significantly increased 3.6 g and 4.3 g than that of SCCM and SCCS,respectively,for rates of seeds bitten by insects and the infected seed rate,no significant difference was found among the three treatments.Compared with SCCS for 4 years,plant height of SCCA and SCCM significantly increased 23.7 cm and 17.1 cm,respectively;plant height of SCCA significantly increased 6.6 cm than that of SCCM;seed weight per plant of SCCA significantly increased 2.1 g and 7.8 g than that of SCCM and SCCS;there was no significant difference among the three treatments for the rates of seeds bitten by insects and the infected seed rate as well.Results indicated that alfalfa stubble was superior to maize stubble and soybean stubble in reducing the seed yield loss caused by continuous cropping soybean.
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Claims 18
Claim · model-written summary
After two years, alfalfa stubble increased soybean seed yield 8.4% over maize stubble.
- Taxon
- soybean
Glycine maxt0 - Treatment
- SCCAe0
- Outcome
- seed yielde0
- Direction
- increasede0
- Value
- 8.4%e0
- Qualifier
- 2 and 3 yearse0
- Comparator
- SCCMe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed yield of SCCA for 2 and 3 years increased 8.4% and 6.6% than that of SCCM respectively”
t0“Soybean”
Claim · model-written summary
After three years, alfalfa stubble increased seed yield 6.6% over maize stubble.
- Taxon
- soybeanGlycine maxt0
- Treatment
- SCCAe0
- Outcome
- seed yielde0
- Direction
- increasede0
- Value
- 6.6%e0
- Comparator
- SCCMe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed yield of SCCA for 2 and 3 years increased 8.4% and 6.6% than that of SCCM respectively”
t0“Soybean”
Claim · model-written summary
Alfalfa stubble increased two-year soybean yield 26.7% over soybean stubble.
- Taxon
- soybeanGlycine maxt0
- Treatment
- SCCAe1
- Outcome
- seed yielde2
- Direction
- increasede0
- Value
- 26.7%e0
- Comparator
- SCCSe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significantly increased 26.7% and 27.5% than that of SCCS respectively”
t0“Soybean”
e1“seed yield of SCCA for 2 and 3 years increased 8.4% and 6.6% than that of SCCM respectively”
e2“seed yield of SCCA for 2 and 3 years increased 8.4% and 6.6% than that of SCCM respectively”
Claim · model-written summary
Alfalfa stubble increased three-year soybean yield 27.5% over soybean stubble.
- Taxon
- soybeanGlycine maxt0
- Treatment
- SCCAe1
- Outcome
- seed yielde2
- Direction
- increasede0
- Value
- 27.5%e0
- Comparator
- SCCSe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significantly increased 26.7% and 27.5% than that of SCCS respectively”
t0“Soybean”
e1“seed yield of SCCA for 2 and 3 years increased 8.4% and 6.6% than that of SCCM respectively”
e2“seed yield of SCCA for 2 and 3 years increased 8.4% and 6.6% than that of SCCM respectively”
Claim · model-written summary
Maize stubble increased two-year soybean yield 16.9% over soybean stubble.
- Taxon
- soybeanGlycine maxt0
- Treatment
- SCCMe0
- Outcome
- seed yielde0
- Direction
- increasede0
- Value
- 16.9%e0
- Comparator
- SCCSe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed yield of SCCM for 2 and 3 years significantly increased 16.9% and 19.6% than that of SCCS respectively”
t0“Soybean”
Claim · model-written summary
Maize stubble increased three-year soybean yield 19.6% over soybean stubble.
- Taxon
- soybeanGlycine maxt0
- Treatment
- SCCMe0
- Outcome
- seed yielde0
- Direction
- increasede0
- Value
- 19.6%e0
- Comparator
- SCCSe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed yield of SCCM for 2 and 3 years significantly increased 16.9% and 19.6% than that of SCCS respectively”
t0“Soybean”
Claim · model-written summary
Against three-year soybean stubble, alfalfa stubble increased plant height 19.5 cm.
- Taxon
- soybeanGlycine maxt0
- Treatment
- SCCAe0
- Outcome
- plant heighte0
- Direction
- increasede0
- Value
- 19.5 cme0
- Comparator
- SCCSe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with SCCS for 3 years,plant height of SCCA and SCCM significantly increased 19.5 cm and 13.8 cm,respectively”
t0“Soybean”
Claim · model-written summary
Against three-year soybean stubble, maize stubble increased plant height 13.8 cm.
- Taxon
- soybeanGlycine maxt0
- Treatment
- SCCMe0
- Outcome
- plant heighte0
- Direction
- increasede0
- Value
- 13.8 cme0
- Comparator
- SCCSe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with SCCS for 3 years,plant height of SCCA and SCCM significantly increased 19.5 cm and 13.8 cm,respectively”
t0“Soybean”
Claim · model-written summary
Alfalfa stubble increased seed weight per plant 3.6 g over maize stubble.
- Taxon
- soybeanGlycine maxt0
- Treatment
- SCCAe0
- Outcome
- seed weight per plante0
- Direction
- increasede0
- Value
- 3.6 ge0
- Comparator
- SCCMe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed weight per plant of SCCA significantly increased 3.6 g and 4.3 g than that of SCCM and SCCS”
t0“Soybean”
Claim · model-written summary
Alfalfa stubble increased seed weight per plant 4.3 g over soybean stubble.
- Taxon
- soybeanGlycine maxt0
- Treatment
- SCCAe0
- Outcome
- seed weight per plante0
- Direction
- increasede0
- Value
- 4.3 ge0
- Comparator
- SCCSe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed weight per plant of SCCA significantly increased 3.6 g and 4.3 g than that of SCCM and SCCS”
t0“Soybean”
Claim · model-written summary
Insect-bitten and infected seed rates showed no significant differences among three stubble treatments.
- Taxon
- soybeanGlycine maxt0
- Treatment
- three treatmentse0
- Outcome
- rates of seeds bitten by insects and the infected seed ratee0
- Direction
- no significant differencee0
- Comparator
- three treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“for rates of seeds bitten by insects and the infected seed rate,no significant difference was found among the three treatments”
t0“Soybean”
Claim · model-written summary
Against four-year soybean stubble, alfalfa stubble increased plant height 23.7 cm.
- Taxon
- soybeanGlycine maxt0
- Treatment
- SCCAe0
- Outcome
- plant heighte0
- Direction
- increasede0
- Value
- 23.7 cme0
- Comparator
- SCCSe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with SCCS for 4 years,plant height of SCCA and SCCM significantly increased 23.7 cm and 17.1 cm,respectively”
t0“Soybean”
Claim · model-written summary
Against four-year soybean stubble, maize stubble increased plant height 17.1 cm.
- Taxon
- soybeanGlycine maxt0
- Treatment
- SCCMe0
- Outcome
- plant heighte0
- Direction
- increasede0
- Value
- 17.1 cme0
- Comparator
- SCCSe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with SCCS for 4 years,plant height of SCCA and SCCM significantly increased 23.7 cm and 17.1 cm,respectively”
t0“Soybean”
Claim · model-written summary
Alfalfa stubble increased plant height 6.6 cm over maize stubble.
- Taxon
- soybeanGlycine maxt0
- Treatment
- SCCAe0
- Outcome
- plant heighte0
- Direction
- increasede0
- Value
- 6.6 cme0
- Comparator
- SCCMe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant height of SCCA significantly increased 6.6 cm than that of SCCM”
t0“Soybean”
Claim · model-written summary
Alfalfa stubble increased seed weight per plant 2.1 g over maize stubble.
- Taxon
- soybeanGlycine maxt0
- Treatment
- SCCAe0
- Outcome
- seed weight per plante0
- Direction
- increasede0
- Value
- 2.1 ge0
- Comparator
- SCCMe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed weight per plant of SCCA significantly increased 2.1 g and 7.8 g than that of SCCM and SCCS”
t0“Soybean”
Claim · model-written summary
Alfalfa stubble increased seed weight per plant 7.8 g over soybean stubble.
- Taxon
- soybeanGlycine maxt0
- Treatment
- SCCAe0
- Outcome
- seed weight per plante0
- Direction
- increasede0
- Value
- 7.8 ge0
- Comparator
- SCCSe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed weight per plant of SCCA significantly increased 2.1 g and 7.8 g than that of SCCM and SCCS”
t0“Soybean”
Claim · model-written summary
At four years, insect-bitten and infected seed rates did not differ significantly among treatments.
- Taxon
- soybeanGlycine maxt0
- Treatment
- three treatmentse0
- Outcome
- rates of seeds bitten by insects and the infected seed ratee0
- Direction
- no significant differencee0
- Comparator
- three treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was no significant difference among the three treatments for the rates of seeds bitten by insects and the infected seed rate as well”
t0“Soybean”
Claim · model-written summary
The authors concluded that alfalfa stubble best reduced continuous-cropping yield loss.
- Taxon
- soybeanGlycine maxe0
- Treatment
- alfalfa stubblee0
- Outcome
- seed yield losse0
- Direction
- superiore0
- Comparator
- maize stubble and soybean stubblee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“alfalfa stubble was superior to maize stubble and soybean stubble in reducing the seed yield loss caused by continuous cropping soybean”
The same questions in other papers
Medicago sativa · yield · Glycine max (soybean)Positive and negative results
4 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- negative
- positive
3 papers more in this group
See all 7 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.