Abstract
Nowadays chemical weed control is one of the most indispensable methods in modern agriculture.However,the compost or manure would be polluted by herbicide residual in the non-target plants.Improper use of the polluted compost may have serious negative effects on growth of next-stubble crops.In this research,compost contaminated by herbicide was used in nursery substrate with different proportions to investigate the sensitivity levels of the plants. Basically we set 3 conditions to test cucumbers on their germination rate,internode length,height, stem diameter,dry weight,leaf number,leaf area,curl and seedling index after sowing in 45 days.These 3 conditions are non-polluted compost condition(C1),Aminopyralid polluted condition(C2)and Clopyralid polluted condition(C3),and 0,5%,10% and 20% usage of compost are used respectively under these 3 conditions.Results show that the more polluted compost we used,the lower germination rate is. Moreover,symptoms of herbicide damages of cucumber seedling are found from the delicate plant,small and curl leaves.With the same usage of compost,Aminopyralid tends to have more serious influence on cucumber comparing to Clopyralid, which means the more effective herbicide are used in the compost,the graver influence will be presented on the following sensitive plants. So we can draw the following conclusions: the compost contaminated with compound herbicide suppresses the germination rate of cucumber seeds. It can significantly inhibit the growth of seedlings of cucumber and reduce its seedling index at a lower concentration.
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Claims 6
Claim · model-written summary
More contaminated compost lowered cucumber germination rate.
- Taxon
- cucumber
Cucumis sativust0 - Treatment
- polluted composte0
- Outcome
- germination ratee0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the more polluted compost we used,the lower germination rate is”
t0“cucumber”
Claim · model-written summary
Cucumber seedlings exposed to contaminated compost had small, curled leaves.
- Taxon
- cucumberCucumis sativuse0
- Organ / stage
- seedlinge0
- Outcome
- small and curl leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“symptoms of herbicide damages of cucumber seedling are found from the delicate plant,small and curl leaves”
Claim · model-written summary
At equal compost use, Aminopyralid had a more serious effect on cucumber than Clopyralid.
- Taxon
- cucumberCucumis sativuse0
- Treatment
- Aminopyralide0
- Outcome
- influence on cucumbere0
- Direction
- more seriouse0
- Comparator
- Clopyralide0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the same usage of compost,Aminopyralid tends to have more serious influence on cucumber comparing to Clopyralid”
Claim · model-written summary
Compound herbicide contaminated compost suppressed cucumber seed germination.
- Taxon
- cucumberCucumis sativuse0
- Organ / stage
- seedse0
- Treatment
- compost contaminated with compound herbicidee0
- Outcome
- germination ratee0
- Direction
- suppressese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the compost contaminated with compound herbicide suppresses the germination rate of cucumber seeds”
Claim · model-written summary
Contaminated compost significantly inhibited cucumber seedling growth at a lower concentration.
- Taxon
- cucumberCucumis sativuse0
- Treatment
- compost contaminated with compound herbicidee1
- Outcome
- growth of seedlingse0
- Direction
- inhibite0
- Qualifier
- at a lower concentratione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It can significantly inhibit the growth of seedlings of cucumber and reduce its seedling index at a lower concentration”
e1“compost contaminated with compound herbicide”
Claim · model-written summary
Contaminated compost reduced the cucumber seedling index at a lower concentration.
- Taxon
- cucumberCucumis sativust0
- Treatment
- compost contaminated with compound herbicidee1
- Outcome
- seedling indexe0
- Direction
- reducee0
- Qualifier
- at a lower concentratione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It can significantly inhibit the growth of seedlings of cucumber and reduce its seedling index at a lower concentration”
e1“compost contaminated with compound herbicide”
t0“cucumber”
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