| Effects of different methods of bio-organic fertilizer application on watermelon growth and yield on gravel-mulched land |
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| DOI：10.7606/j.issn.1000-7601.2011.06.25 |
| Key Words: watermnelon on gavel-mulched land hill placement band placement bio-organic fertilizer |
| Author Name | Affiliation | | TAN Junli | School of Civil and Hlydraulic Engineering ，Ningxia University, Yinchuan, Ningxia 750021，China
Engineering and Technology Research Center of Water-saving and Water Resources Regulation in Ningxia, Yinchuan, Ningxia 750021，China | | TIAN Juncang | School of Civil and Hlydraulic Engineering ，Ningxia University, Yinchuan, Ningxia 750021，China
Engineering and Technology Research Center of Water-saving and Water Resources Regulation in Ningxia, Yinchuan, Ningxia 750021，China | | LI Yinghai | School of Civil and Hlydraulic Engineering ，Ningxia University, Yinchuan, Ningxia 750021，China
Engineering and Technology Research Center of Water-saving and Water Resources Regulation in Ningxia, Yinchuan, Ningxia 750021，China | | WANG Xina | College of Agriculture，Ningxia University， Yinchuan, Ningxia 750021，China |
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| Abstract: |
| A field experiment was carried out to compare the effects of hill placement of bio organic fertilizer with
that of band placement on watermelon growth and yield at Zhongwei of Ningxia Hui Autonomous Region in 2009. The re-sults showed that the main stem of watermelon was 20.6 cm longer with hill placement of bio organic fertilizer than that with band placement，increasing by 25.4% in the late growth stage. The leaf number of watemnelon was greater also. Leaf area index of watermelon increased by 80%~119% with hill placement compared withband placement in the early growth stage and single melon weight increased by 43%, the sugar content in the center and edge improved by 9% and 8% respectively. At the same time，the water use eficiency of waternelon increased 20 kg/ (mm·hm2) by 43%. In a word, compared with band placement, hill placement of bio organic fertilizer promotes watemelon growth，increases wa-termelon yield and quality and enhances water use efficiency of watemnelon on the condition of the application of 80 kg per 667 m2 on the gravel-mulched land. |
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