Abstract
The present experiment was conducted to study the effects of magnesium and boron fertilizers on growth and yield of flue-cured tobacco under field conditions in Nandan County,Guangxi.The flue-cured tobacco variety Yunyan 85 was used as material and applied with three fertilizer treatments,viz.,magnesium deficiency,boron deficiency and rec-ommendation fertilization(ammonium sulphate @214.2kg/ha,calcium nitrate @119.9kg/ha,potassium nitrate @199.9kg/ha,potassium sulphate @362.0kg/ha,calcium magnesium phosphate fertilizer @1000.0kg/ha,magnesium sulfate @37.5kg/ha,zinc sulfate @22.5kg/ha,borax @15.0kg/ha).The boron deficiency treatment decreased the plant height,node length,stem diameter,length and width of the largest middle leaf of plant by 4.10%,12.67%,13.33%,16.71% and 15.57%,respective-ly,and the root depth,rooting extension range,root number of the first branch and the second branch and root dry weight by 33.33%,11.34%,40.00%,13.51% and 31.31%,respectively.No significant differences regarding growth and develop-ment stages and root system indices have been observed between magnesium deficiency and recommended fertilization,while the economic yield and output of tobacco treated with magnesium deficiency decreased significantly.It has been rec-ommended that magnesium and boron fertilizer should be applied reasonably to promote the growth and development and increase the yield and output of flue-cured tobacco in acid soil regions of south China.
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Claims 13
Claim · model-written summary
Boron deficiency decreased plant height by 4.10%.
Verbatim
e0“The boron deficiency treatment decreased the plant height,node length,stem diameter,length and width of the largest middle leaf of plant by 4.10%,12.67%,13.33%,16.71% and 15.57%,respective-ly”
t0“Effects of magnesium and boron fertilizers on growth, yield and quality of flue-cured tobacco”
e2“magnesium deficiency,boron deficiency and rec-ommendation fertilization”
Claim · model-written summary
Boron deficiency decreased node length by 12.67%.
Verbatim
e0“The boron deficiency treatment decreased the plant height,node length,stem diameter,length and width of the largest middle leaf of plant by 4.10%,12.67%,13.33%,16.71% and 15.57%,respective-ly”
t0“Effects of magnesium and boron fertilizers on growth, yield and quality of flue-cured tobacco”
e2“magnesium deficiency,boron deficiency and rec-ommendation fertilization”
Claim · model-written summary
Boron deficiency decreased stem diameter by 13.33%.
Verbatim
e0“The boron deficiency treatment decreased the plant height,node length,stem diameter,length and width of the largest middle leaf of plant by 4.10%,12.67%,13.33%,16.71% and 15.57%,respective-ly”
t0“Effects of magnesium and boron fertilizers on growth, yield and quality of flue-cured tobacco”
e2“magnesium deficiency,boron deficiency and rec-ommendation fertilization”
Claim · model-written summary
Boron deficiency decreased length of the largest middle leaf by 16.71%.
Verbatim
e0“The boron deficiency treatment decreased the plant height,node length,stem diameter,length and width of the largest middle leaf of plant by 4.10%,12.67%,13.33%,16.71% and 15.57%,respective-ly”
t0“Effects of magnesium and boron fertilizers on growth, yield and quality of flue-cured tobacco”
e2“magnesium deficiency,boron deficiency and rec-ommendation fertilization”
Claim · model-written summary
Boron deficiency decreased width of the largest middle leaf by 15.57%.
Verbatim
e0“The boron deficiency treatment decreased the plant height,node length,stem diameter,length and width of the largest middle leaf of plant by 4.10%,12.67%,13.33%,16.71% and 15.57%,respective-ly”
t0“Effects of magnesium and boron fertilizers on growth, yield and quality of flue-cured tobacco”
e2“magnesium deficiency,boron deficiency and rec-ommendation fertilization”
Claim · model-written summary
Boron deficiency decreased root depth by 33.33%.
Verbatim
e0“the root depth,rooting extension range,root number of the first branch and the second branch and root dry weight by 33.33%,11.34%,40.00%,13.51% and 31.31%,respectively”
t0“Effects of magnesium and boron fertilizers on growth, yield and quality of flue-cured tobacco”
e3“The boron deficiency treatment decreased the plant height”
e2“magnesium deficiency,boron deficiency and rec-ommendation fertilization”
e4“The boron deficiency treatment decreased the plant height”
Claim · model-written summary
Boron deficiency decreased rooting extension range by 11.34%.
Verbatim
e0“the root depth,rooting extension range,root number of the first branch and the second branch and root dry weight by 33.33%,11.34%,40.00%,13.51% and 31.31%,respectively”
t0“Effects of magnesium and boron fertilizers on growth, yield and quality of flue-cured tobacco”
e3“The boron deficiency treatment decreased the plant height”
e2“magnesium deficiency,boron deficiency and rec-ommendation fertilization”
e4“The boron deficiency treatment decreased the plant height”
Claim · model-written summary
Boron deficiency decreased root number of the first branch by 40.00%.
Verbatim
e0“the root depth,rooting extension range,root number of the first branch and the second branch and root dry weight by 33.33%,11.34%,40.00%,13.51% and 31.31%,respectively”
t0“Effects of magnesium and boron fertilizers on growth, yield and quality of flue-cured tobacco”
e3“The boron deficiency treatment decreased the plant height”
e2“magnesium deficiency,boron deficiency and rec-ommendation fertilization”
e4“The boron deficiency treatment decreased the plant height”
Claim · model-written summary
Boron deficiency decreased root number of the second branch by 13.51%.
Verbatim
e0“the root depth,rooting extension range,root number of the first branch and the second branch and root dry weight by 33.33%,11.34%,40.00%,13.51% and 31.31%,respectively”
t0“Effects of magnesium and boron fertilizers on growth, yield and quality of flue-cured tobacco”
e3“The boron deficiency treatment decreased the plant height”
e2“magnesium deficiency,boron deficiency and rec-ommendation fertilization”
e4“The boron deficiency treatment decreased the plant height”
Claim · model-written summary
Boron deficiency decreased root dry weight by 31.31%.
Verbatim
e0“the root depth,rooting extension range,root number of the first branch and the second branch and root dry weight by 33.33%,11.34%,40.00%,13.51% and 31.31%,respectively”
t0“Effects of magnesium and boron fertilizers on growth, yield and quality of flue-cured tobacco”
e3“The boron deficiency treatment decreased the plant height”
e2“magnesium deficiency,boron deficiency and rec-ommendation fertilization”
e4“The boron deficiency treatment decreased the plant height”
Claim · model-written summary
Magnesium deficiency did not significantly differ from recommended fertilization in growth stages and root indices.
Verbatim
e0“No significant differences regarding growth and develop-ment stages and root system indices have been observed between magnesium deficiency and recommended fertilization”
t0“Effects of magnesium and boron fertilizers on growth, yield and quality of flue-cured tobacco”
Claim · model-written summary
Magnesium deficiency significantly decreased economic yield and output.
- Taxon
- tobacco
Nicotiana tabacumt0 - Treatment
- magnesium deficiencye0
- Outcome
- economic yield and outpute0
- Direction
- decreasede0
- Comparator
- recommended fertilizatione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the economic yield and output of tobacco treated with magnesium deficiency decreased significantly”
t0“Effects of magnesium and boron fertilizers on growth, yield and quality of flue-cured tobacco”
e2“No significant differences regarding growth and develop-ment stages and root system indices have been observed between magnesium deficiency and recommended fertilization”
Claim · model-written summary
The authors recommend reasonable magnesium and boron fertilization in acidic south China soils.
Verbatim
e0“magnesium and boron fertilizer should be applied reasonably to promote the growth and development and increase the yield and output of flue-cured tobacco in acid soil regions of south China”
t0“Effects of magnesium and boron fertilizers on growth, yield and quality of flue-cured tobacco”
The same questions in other papers
magnesium atom · yield · Nicotiana tabacum (tobacco)Results differ
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This paper is about lacking the nutrient, so it counts the other way round here.
- no effect
- positive
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2 papers in the same direction as this paper · 12 in the opposite direction
This paper is about lacking the nutrient, so it counts the other way round here.
- positive
- positive
- positive
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See all 15 papers →boron atom · growth · Nicotiana tabacum (tobacco)Positive and negative results
12 papers in the same direction as this paper · 4 in the opposite direction
This paper is about lacking the nutrient, so it counts the other way round here.
- negative
- negative
- negative
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See all 17 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.