Abstract
Under two different fertilization levels,effects of alternate partial root-zone irrigation(APRI) on growth,dry mass accumulation and distribution,N and K content of flue-cured tobacco during different growth stages were studied using pot experiment.Results show that APRI in the root development and maturing stages of tobacco significantly increase plant height and leaf nitrogen(N) and potassium(K) contents.Compared to conventional irrigation(CI), APRI treated during root development and maturing stages of tobacco increases the plant height,leaf N and K contents by 6.42%,14.02%,5.19% and 9.16%,28.03%,28.13% under lower fertilization,and by 9.11%,23.71%,18.75% and 16.55%,38.57%,50.84% under higher fertilization,respectively.Thus APRI treated in the root developing and maturing stages is an efficient irrigation method for tobacco production with proper yield and higher quality under higher fertilization.
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Claims 13
Claim · model-written summary
APRI increased plant height during root development under lower fertilization by 6.42%.
Verbatim
e0“Compared to conventional irrigation(CI), APRI treated during root development and maturing stages of tobacco increases the plant height,leaf N and K contents by 6.42%,14.02%,5.19% and 9.16%,28.03%,28.13% under lower fertilization,and by 9.11%,23.71%,18.75% and 16.55%,38.57%,50.84% under higher fertilization,respectively.”
t0“Flue-cured Tobacco”
Claim · model-written summary
APRI increased leaf N during root development under lower fertilization by 14.02%.
Verbatim
e0“Compared to conventional irrigation(CI), APRI treated during root development and maturing stages of tobacco increases the plant height,leaf N and K contents by 6.42%,14.02%,5.19% and 9.16%,28.03%,28.13% under lower fertilization,and by 9.11%,23.71%,18.75% and 16.55%,38.57%,50.84% under higher fertilization,respectively.”
t0“Flue-cured Tobacco”
Claim · model-written summary
APRI increased K contents during root development under lower fertilization by 5.19%.
Verbatim
e0“Compared to conventional irrigation(CI), APRI treated during root development and maturing stages of tobacco increases the plant height,leaf N and K contents by 6.42%,14.02%,5.19% and 9.16%,28.03%,28.13% under lower fertilization,and by 9.11%,23.71%,18.75% and 16.55%,38.57%,50.84% under higher fertilization,respectively.”
t0“Flue-cured Tobacco”
Claim · model-written summary
APRI increased plant height during maturing stages under lower fertilization by 9.16%.
Verbatim
e0“Compared to conventional irrigation(CI), APRI treated during root development and maturing stages of tobacco increases the plant height,leaf N and K contents by 6.42%,14.02%,5.19% and 9.16%,28.03%,28.13% under lower fertilization,and by 9.11%,23.71%,18.75% and 16.55%,38.57%,50.84% under higher fertilization,respectively.”
t0“Flue-cured Tobacco”
Claim · model-written summary
APRI increased leaf N during maturing stages under lower fertilization by 28.03%.
Verbatim
e0“Compared to conventional irrigation(CI), APRI treated during root development and maturing stages of tobacco increases the plant height,leaf N and K contents by 6.42%,14.02%,5.19% and 9.16%,28.03%,28.13% under lower fertilization,and by 9.11%,23.71%,18.75% and 16.55%,38.57%,50.84% under higher fertilization,respectively.”
t0“Flue-cured Tobacco”
Claim · model-written summary
APRI increased K contents during maturing stages under lower fertilization by 28.13%.
Verbatim
e0“Compared to conventional irrigation(CI), APRI treated during root development and maturing stages of tobacco increases the plant height,leaf N and K contents by 6.42%,14.02%,5.19% and 9.16%,28.03%,28.13% under lower fertilization,and by 9.11%,23.71%,18.75% and 16.55%,38.57%,50.84% under higher fertilization,respectively.”
t0“Flue-cured Tobacco”
Claim · model-written summary
APRI increased plant height during root development under higher fertilization by 9.11%.
Verbatim
e0“Compared to conventional irrigation(CI), APRI treated during root development and maturing stages of tobacco increases the plant height,leaf N and K contents by 6.42%,14.02%,5.19% and 9.16%,28.03%,28.13% under lower fertilization,and by 9.11%,23.71%,18.75% and 16.55%,38.57%,50.84% under higher fertilization,respectively.”
t0“Flue-cured Tobacco”
Claim · model-written summary
APRI increased leaf N during root development under higher fertilization by 23.71%.
Verbatim
e0“Compared to conventional irrigation(CI), APRI treated during root development and maturing stages of tobacco increases the plant height,leaf N and K contents by 6.42%,14.02%,5.19% and 9.16%,28.03%,28.13% under lower fertilization,and by 9.11%,23.71%,18.75% and 16.55%,38.57%,50.84% under higher fertilization,respectively.”
t0“Flue-cured Tobacco”
Claim · model-written summary
APRI increased K contents during root development under higher fertilization by 18.75%.
Verbatim
e0“Compared to conventional irrigation(CI), APRI treated during root development and maturing stages of tobacco increases the plant height,leaf N and K contents by 6.42%,14.02%,5.19% and 9.16%,28.03%,28.13% under lower fertilization,and by 9.11%,23.71%,18.75% and 16.55%,38.57%,50.84% under higher fertilization,respectively.”
t0“Flue-cured Tobacco”
Claim · model-written summary
APRI increased plant height during maturing stages under higher fertilization by 16.55%.
Verbatim
e0“Compared to conventional irrigation(CI), APRI treated during root development and maturing stages of tobacco increases the plant height,leaf N and K contents by 6.42%,14.02%,5.19% and 9.16%,28.03%,28.13% under lower fertilization,and by 9.11%,23.71%,18.75% and 16.55%,38.57%,50.84% under higher fertilization,respectively.”
t0“Flue-cured Tobacco”
Claim · model-written summary
APRI increased leaf N during maturing stages under higher fertilization by 38.57%.
Verbatim
e0“Compared to conventional irrigation(CI), APRI treated during root development and maturing stages of tobacco increases the plant height,leaf N and K contents by 6.42%,14.02%,5.19% and 9.16%,28.03%,28.13% under lower fertilization,and by 9.11%,23.71%,18.75% and 16.55%,38.57%,50.84% under higher fertilization,respectively.”
t0“Flue-cured Tobacco”
Claim · model-written summary
APRI increased K contents during maturing stages under higher fertilization by 50.84%.
Verbatim
e0“Compared to conventional irrigation(CI), APRI treated during root development and maturing stages of tobacco increases the plant height,leaf N and K contents by 6.42%,14.02%,5.19% and 9.16%,28.03%,28.13% under lower fertilization,and by 9.11%,23.71%,18.75% and 16.55%,38.57%,50.84% under higher fertilization,respectively.”
t0“Flue-cured Tobacco”
Claim · model-written summary
The authors recommend APRI at root development and maturity under higher fertilization for proper yield and higher quality.
Verbatim
e0“Thus APRI treated in the root developing and maturing stages is an efficient irrigation method for tobacco production with proper yield and higher quality under higher fertilization.”
t0“Flue-cured Tobacco”
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