Abstract
Results of four years' crop rotation and continuous cropping location experiment of flue-cured tobacco showed that growth potential, yield, value of yield .average price and apparent quality of continuous cropping tobacco was worse than that of crop rotation tobacco. The percentage of yield, value of yield, average price and mid-higher grade tobacco of continuous croppingtobacco to crop rotation tobacco was 59.12%, 29.93%, 52.07%,50.6%, respectively. Results of aroma chemicals detecting showed that amount of aroma chemicals in rotation cropping tobacco was higher than that of crop continuous tobacco. Results of comparison of soil nutrients under two cropping system showed that content of available phosphorate and available potassium in the soil of continuous cropping was higher than that in the soil of crop rotadon. But the pH, content of organic matter, total potassium, available P, available Zn, CEC and changeable Mg in soil of crop rotation was higher than that soil of continuous cropping. The difference of total microbe amount in soils of two cropping system was not significant Compared to crop rotadon system, the disease percentage of tobacco black shank and tobacco brown spot increased after continuous cropping.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 13
Claim · model-written summary
Continuous cropping tobacco had worse growth potential and apparent quality than rotation tobacco.
- Taxon
- tobacco
Nicotiana tabacume0 - Treatment
- continuous croppinge0
- Outcome
- growth potentiale0
- Direction
- worsee0
- Comparator
- crop rotation tobaccoe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“growth potential, yield, value of yield .average price and apparent quality of continuous cropping tobacco was worse than that of crop rotation tobacco.”
Claim · model-written summary
Continuous cropping tobacco had worse apparent quality than rotation tobacco.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- continuous croppinge0
- Outcome
- apparent qualitye0
- Direction
- worsee0
- Comparator
- crop rotation tobaccoe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“growth potential, yield, value of yield .average price and apparent quality of continuous cropping tobacco was worse than that of crop rotation tobacco.”
Claim · model-written summary
Continuous cropping yield was 59.12% of rotation yield.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- continuous croppinge0
- Outcome
- yielde0
- Direction
- worsee1
- Value
- 59.12%e0
- Comparator
- crop rotatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The percentage of yield, value of yield, average price and mid-higher grade tobacco of continuous croppingtobacco to crop rotation tobacco was 59.12%, 29.93%, 52.07%,50.6%, respectively.”
e1“continuous cropping tobacco was worse than that of crop rotation tobacco”
Claim · model-written summary
Continuous cropping yield value was 29.93% of rotation yield value.
- Treatment
- continuous croppinge0
- Outcome
- value of yielde0
- Direction
- worsee1
- Value
- 29.93%e0
- Comparator
- crop rotatione0
Not reportedTaxon
Verbatim
e0“The percentage of yield, value of yield, average price and mid-higher grade tobacco of continuous croppingtobacco to crop rotation tobacco was 59.12%, 29.93%, 52.07%,50.6%, respectively.”
e1“continuous cropping tobacco was worse than that of crop rotation tobacco”
Claim · model-written summary
Continuous cropping average price was 52.07% of rotation average price.
- Treatment
- continuous croppinge0
- Outcome
- average pricee0
- Direction
- worsee1
- Value
- 52.07%e0
- Comparator
- crop rotatione0
Not reportedTaxon
Verbatim
e0“The percentage of yield, value of yield, average price and mid-higher grade tobacco of continuous croppingtobacco to crop rotation tobacco was 59.12%, 29.93%, 52.07%,50.6%, respectively.”
e1“continuous cropping tobacco was worse than that of crop rotation tobacco”
Claim · model-written summary
Continuous cropping mid-higher grade tobacco was 50.6% of rotation tobacco.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- continuous croppinge0
- Outcome
- mid-higher grade tobaccoe0
- Direction
- lowerinferrede0
- Value
- 50.6%e0
- Comparator
- crop rotatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The percentage of yield, value of yield, average price and mid-higher grade tobacco of continuous croppingtobacco to crop rotation tobacco was 59.12%, 29.93%, 52.07%,50.6%, respectively.”
Claim · model-written summary
Rotation tobacco had more aroma chemicals than continuous cropping tobacco.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- rotation croppinge0
- Outcome
- amount of aroma chemicalse0
- Direction
- highere0
- Comparator
- crop continuous tobaccoe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“amount of aroma chemicals in rotation cropping tobacco was higher than that of crop continuous tobacco.”
Claim · model-written summary
Continuous cropping soil had higher available phosphorate and potassium than rotation soil.
- Treatment
- continuous croppinge0
- Outcome
- content of available phosphorate and available potassiume0
- Direction
- highere0
- Comparator
- crop rotadone0
Not reportedTaxon
Verbatim
e0“content of available phosphorate and available potassium in the soil of continuous cropping was higher than that in the soil of crop rotadon.”
Claim · model-written summary
Rotation soil had higher pH, organic matter and total potassium.
- Treatment
- crop rotatione0
- Outcome
- pH, content of organic matter, total potassiume0
- Direction
- highere0
- Comparator
- continuous croppinge0
Not reportedTaxon
Verbatim
e0“the pH, content of organic matter, total potassium, available P, available Zn, CEC and changeable Mg in soil of crop rotation was higher than that soil of continuous cropping.”
Claim · model-written summary
Rotation soil had higher available P, available Zn and CEC.
- Treatment
- crop rotatione0
- Outcome
- available P, available Zn, CECe0
- Direction
- highere0
- Comparator
- continuous croppinge0
Not reportedTaxon
Verbatim
e0“the pH, content of organic matter, total potassium, available P, available Zn, CEC and changeable Mg in soil of crop rotation was higher than that soil of continuous cropping.”
Claim · model-written summary
Rotation soil had higher exchangeable Mg.
Not reportedTaxon
Verbatim
e0“the pH, content of organic matter, total potassium, available P, available Zn, CEC and changeable Mg in soil of crop rotation was higher than that soil of continuous cropping.”
Claim · model-written summary
Total soil microbe amount did not differ significantly between cropping systems.
- Taxon
- microbee0
- Treatment
- continuous croppinge1
- Outcome
- total microbe amount in soilse0
- Comparator
- crop rotadon systeme1
Not reportedDirection
Verbatim
e0“The difference of total microbe amount in soils of two cropping system was not significant”
e1“Compared to crop rotadon system, the disease percentage of tobacco black shank and tobacco brown spot increased after continuous cropping.”
Claim · model-written summary
Continuous cropping increased tobacco black shank and brown spot disease percentage relative to rotation.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- continuous croppinge0
- Outcome
- disease percentage of tobacco black shank and tobacco brown spote0
- Direction
- increasede0
- Comparator
- crop rotadon systeme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to crop rotadon system, the disease percentage of tobacco black shank and tobacco brown spot increased after continuous cropping.”
The same questions in other papers
rotation · quality: phytochemicals · Nicotiana tabacum (tobacco)Positive and negative results
1 in the opposite direction
- negative
rotation · organism · Nicotiana tabacum (tobacco)Positive and negative results
1 in the opposite direction
- positive
rotation · quality: general · Nicotiana tabacum (tobacco)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- no effect
rotation · growth · Nicotiana tabacum (tobacco)Positive and negative results
1 paper in the same direction as this paper · 4 in the opposite direction
- positive
- positive
- positive
2 papers more in this group
See all 6 papers →rotation · yield · Nicotiana tabacum (tobacco)Positive and negative results
3 papers in the same direction as this paper · 16 in the opposite direction
- positive
- positive
- positive
16 papers more in this group
See all 20 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.