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Effect of Fertilization Modes and Photosynthesis Synergist on Yield and Quality of Sweet Sorghum

Author: LiYongJin
Tutor: WangXueHua
School: Hunan Agricultural University
Course:
Keywords: Sweet sorghum Fertilization modes Photosynthesis synergist Yeild Qualityp
CLC: S566.5
Type: Master's thesis
Year: 2013
Downloads: 3
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Abstract


This test used Yajin301as research material,through the study on the effect of fertilization modes and photosynthesis synergist on the yield and quality of sweet sorghum,and to look for the best planting way of sweet sorghum. The study made following conclusions:1.Effects of fertilization modes on main agronomic traits of sweet sorghum reached an extremely significant level,plant height and plant diamter achieve the best state under three times fertilization mode;Fertilization modes bring a significant effect on LAI,but the effect on chlorophyll content was not significant,increase the times of fertilization can significantly improve LAI.2.Fertilization modes bring a significant effect on the yield of sweet soughum.The biological yield,stem yield and grain yield growth with the fertilization times increase, biological yield and grain yield achieve the best state under two times fertilizer ways,and stem yield achieve the best state under three times fertilization mode.3.Fertilization modes bring a significant effect on Brix of sweet sorghum, the Brix of sweet sorghum decrease with increase of fertilization times,and the Brix get maximum under one time fertilization mode.4.nitrogen content in leaf is significantly higher than stem, Stem phosphorus and potassium content is significantly higher than leaf.Fertilization modes bring a significantly effects on nitrogen and potassium content,but the effect on phosphorus content was no significant,with M3mode,plant nitrogen and potassium content is the highest,with Ml mode,plant phosphorus content is the highest; Fertilization modes bring a significantly effects on fertilizer utilization ratio, nitrogen fertilizer utilization ratio of leaf achieve the maximum on M3mode, nitrogen fertilizer utilization ratio of stem achieve the maximum on M2mode, phosphorus fertilizer utilization ratio of plant achieve the maximum on M1mode, potassium fertilizer utilization ratio of plant achieve the maximum on M2mode.5.Effects of Photosynthesis synergist on main agronomic traits of sweet sorghum reached a significant level.Plant height achieve the best state when12leafs stage spray750g/hm2Photosynthesis synergist, Plant diamter achieve the best state when12leafs stage spray600g/hm2or750g/hm2Photosynthesis synergist. Effects of Photosynthesis synergist on LAI was not significant. Photosynthesis synergist bring a significant effect on chlorophyll content, Photosynthesis synergist could significantly increase the chlorophyll content of sweet sorghum, chlorophyll content achieve the best state when12leafs stage spray750g/hm2Photosynthesis synergist. Effects of Photosynthesis synergist on photosynthetic rate and transpiration rate reached a significant level. Photosynthesis synergist could significantly increase the photosynthetic rate and transpiration rate, photosynthetic rate and transpiration rate all growth with the increase of Photosynthesis synergist spraying,achieve the maximum when12leafs stage spray750g/hm2Photosynthesis synergist.6.Effects of Photosynthesis synergist on biological yeild of sweet sorghum was significant, Photosynthesis synergist could signifcantly increase the biological yeild of sweet sorghum,there is no significant differences between8leafs spraying and12leafs spraying, the biological yeild achieve the maximum when spray600g/hm2Photosynthesis synergist. Effects of Photosynthesis synergist on steam yeild of sweet sorghum reached an extremely significant level, Photosynthesis synergist could signifcantly increase the stem yeild of sweet sorghum,there is no significant differences between8leafs spraying and12leafs spraying, the stem yeild achieve the maximum when spray600g/hm2Photosynthesis synergist. Effects of Photosynthesis synergist on grain yeild of sweet sorghum was not significan.7. Effects of Photosynthesis synergist on Birx reached an extremely significant level, Photosynthesis synergist could significantly increase the Brix,Brix decrease with the increase of Photosynthesis synergist spraying, Brix was negative corrected with Photosynthesis synergist spraying.

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CLC: > Agricultural Sciences > Crop > Economic crops > Sugar crop > Milo (sugar sorghum)
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