Abstract
【Objective】The purpose of this study is to provide theoretical guidance for efficient fertilization technique of jujube by comparatively studying the amount of growth,photosynthetic parameters,chlorophyll content,fruit yield and quality in four different fertilization methods( furrow fertilization,hole fertilization,radial fertilization and broadcast fertilization). 【Method】Photosynthetic instrument CIRAS- 2 was applied to mensurate the photosynthetic parameters,SPAD- 502 chlorophyll meter was applied to mensurate the chlorophyll content,anthrone colorimetry method was applied to mensurate the fruit soluble sugar content,and Na OH titration method was applied to mensurate the fruit total acid. 【Result】Radial fertilization compared with CK,can increase diameter expanding 19. 7%,branches length 3. 97 centimeters,branches diameter 12. 4%,length of bearing branchlet 1. 31 centimeters. Under the different fertilization methods,the net photosynthetic rate of radial fertilization waaa 32. 7%,19. 9%,12. 1% and 2. 7% higher than those without fertilizer treatment,broadcast fertilization,furrow fertilization,hole fertilization respectively. The chlorophyll content of hole fertilization treatment was significantly higher than other treatments. The yield per plant of radial fertilization reached to 0. 77 kg / plant,123%,45% and 35%,11% higher than the CK,broadcast fertilization,furrow fertiliza-tion,hole fertilization respectively. The sugar acid ratio of furrow fertilization and radial fertilization were higher. 【Conclusion】The radial fertilization was a priority fertilization method for high- efficiency cultivation,as in virtue of the stronger photosynthetic efficiency,it can evidently improve fruit yield and quality.
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Claims 10
Claim · model-written summary
Radial fertilization increased diameter expansion by 19.7% versus CK.
Verbatim
t0“Jujube( Ziziphus jujuba Mill. )”
e0“Radial fertilization compared with CK,can increase diameter expanding 19. 7%”
Claim · model-written summary
Radial fertilization increased branch length by 3.97 centimeters versus CK.
Verbatim
t0“Jujube( Ziziphus jujuba Mill. )”
e0“Radial fertilization compared with CK,can increase diameter expanding 19. 7%,branches length 3. 97 centimeters”
Claim · model-written summary
Radial fertilization increased branch diameter by 12.4% versus CK.
Verbatim
t0“Jujube( Ziziphus jujuba Mill. )”
e0“Radial fertilization compared with CK,can increase diameter expanding 19. 7%,branches length 3. 97 centimeters,branches diameter 12. 4%”
Claim · model-written summary
Radial fertilization increased bearing branchlet length by 1.31 centimeters versus CK.
Verbatim
t0“Jujube( Ziziphus jujuba Mill. )”
e0“Radial fertilization compared with CK,can increase diameter expanding 19. 7%,branches length 3. 97 centimeters,branches diameter 12. 4%,length of bearing branchlet 1. 31 centimeters”
Claim · model-written summary
Radial fertilization raised net photosynthetic rate by 32.7%, 19.9%, 12.1%, and 2.7% against no fertilizer, broadcast, furrow, and hole fertilization, respectively.
Verbatim
t0“Jujube( Ziziphus jujuba Mill. )”
e0“net photosynthetic rate of radial fertilization waaa 32. 7%,19. 9%,12. 1% and 2. 7% higher than those without fertilizer treatment,broadcast fertilization,furrow fertilization,hole fertilization respectively”
Claim · model-written summary
Hole fertilization had significantly higher chlorophyll content than other treatments.
Verbatim
t0“Jujube( Ziziphus jujuba Mill. )”
e0“The chlorophyll content of hole fertilization treatment was significantly higher than other treatments”
Claim · model-written summary
Radial fertilization yielded 0.77 kg per plant, higher than CK, broadcast, furrow, and hole fertilization.
Verbatim
t0“Jujube( Ziziphus jujuba Mill. )”
e0“The yield per plant of radial fertilization reached to 0. 77 kg / plant,123%,45% and 35%,11% higher than the CK,broadcast fertilization,furrow fertiliza-tion,hole fertilization respectively”
Claim · model-written summary
Furrow fertilization had a higher sugar acid ratio.
Verbatim
t0“Jujube( Ziziphus jujuba Mill. )”
e0“The sugar acid ratio of furrow fertilization and radial fertilization were higher”
Claim · model-written summary
Radial fertilization had a higher sugar acid ratio.
Verbatim
t0“Jujube( Ziziphus jujuba Mill. )”
e0“The sugar acid ratio of furrow fertilization and radial fertilization were higher”
Claim · model-written summary
The authors prioritized radial fertilization for efficient cultivation.
Verbatim
t0“Jujube( Ziziphus jujuba Mill. )”
e0“The radial fertilization was a priority fertilization method for high- efficiency cultivation”
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