| Responses of growth, quality and photosynthetic characteristics of pepper to new-type fertilizers in Guizhou typical yellow soil |
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| DOI：10.7606/j.issn.1000-7601.2017.06.28 |
| Key Words: new-type fertilizers pepper yield quality photosynthetic characteristics yellow soil region |
| Author Name | Affiliation | | ZHANG Meng | Institute of Soil and Fertilizer, Guizhou Academy of Agricultural Sciences, Guizhou Guiyang 550006, China
Fertilizer demonstration plant of Guizhou Provincial Academy of Agricultural Sciences, Guizhou Guiyang 550006, China | | ZHAO Huan | Institute of Soil and Fertilizer, Guizhou Academy of Agricultural Sciences, Guizhou Guiyang 550006, China
Fertilizer demonstration plant of Guizhou Provincial Academy of Agricultural Sciences, Guizhou Guiyang 550006, China | | XIAO Hou-jun | Institute of Soil and Fertilizer, Guizhou Academy of Agricultural Sciences, Guizhou Guiyang 550006, China
Fertilizer demonstration plant of Guizhou Provincial Academy of Agricultural Sciences, Guizhou Guiyang 550006, China | | QIN Song | Institute of Soil and Fertilizer, Guizhou Academy of Agricultural Sciences, Guizhou Guiyang 550006, China
Fertilizer demonstration plant of Guizhou Provincial Academy of Agricultural Sciences, Guizhou Guiyang 550006, China | | GOU Jiu-lan | Institute of Soil and Fertilizer, Guizhou Academy of Agricultural Sciences, Guizhou Guiyang 550006, China
Fertilizer demonstration plant of Guizhou Provincial Academy of Agricultural Sciences, Guizhou Guiyang 550006, China | | WANG Zheng-yin | College of Resources and Environmental Sciences, Southwest University, Chongqing Beibei 400716, China |
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| Abstract: |
| In order to explore the effects of new-type fertilizers on pepper in Guizhou yellow soil, a pot experiment with treatments of new-type fertilizers (including FHF, BSX, WDX, BMX and CXDF) was conducted, and the growth, quality and photosynthetic characteristics of Guizhou pepper were measured. The results showed that the application of new-type fertilizers increased the height by 0.72%～3.76% compared with the FHF treatment, but there were no effect on the stems of the pepper. The new-type fertilizers significantly increased the tiller number and yield, the number of tiller and the yield per plant were increased by 12.26%～29.77% and 2.65%～19.75% compared with FHF, respectively, and the highest yield was WDX treatment of 300.35 g·plant-1. There were differences in pepper quality between the different types of new-type fertilizers, with BSX reducing the content of nitrate by 23.93%, increasing the contents of reducing sugar by 10.65% and the contents of Vc by 38.61% compared with FHF treatment. CXDF treatment significantly reduced the content of nitrate by 12.64%, while WDX treatment significantly increased the content of Vc by 56.21%, but the content of Vc among BMX and CXDF treatment were significantly decreased. Correlation analysis showed that the plant height, tiller number, net photosynthetic rate (Pn), CO2 concentration (Ci) and transpiration rate (Tr) were significantly correlated with pepper yield. The stepwise regression equation was Y=52.316X7－1.714X6＋640.888, where X6 was CO2 concentration (Ci), X7 was transpiration rate (Tr), the correlation coefficient was 0.924. This showed that the CO2 concentration (Ci) and transpiration rate (Tr) of leaves played a leading role on pepper yield formation. In summary, new-type fertilizers demonstrated strong effect of on the growth, quality and photosynthetic characteristics of pepper in yellow soil, with the stable slow-release fertilizer(WDX) and coated slow-release fertilizer (BMX) showing the greater influence. |
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