| Study on ridge and furrow rainwater harvesting planting pattern of pumpkin in sloping dryland in northwest Hebei Province |
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| DOI：10.7606/j.issn.1000-7601.2013.01.06 |
| Key Words: ridge and furrow rainwater harvesting planting pattern yield water use efficiency pumpkin northwest Hebei sloping dryland |
| Author Name | Affiliation | | FU Yongbin | Agricultural Institute of Zhangjiakou, Zhangjiakou, Hebei 075000, China | | REN Quanjun | Agricultural Institute of Zhangjiakou, Zhangjiakou, Hebei 075000, China | | XI Yuyin | Agricultural Institute of Zhangjiakou, Zhangjiakou, Hebei 075000, China | | REN Shaowei | Agricultural Institute of Zhangjiakou, Zhangjiakou, Hebei 075000, China | | ZHAO Haiyang | Agricultural Institute of Zhangjiakou, Zhangjiakou, Hebei 075000, China | | WANG Jianwen | Agricultural Bureau of Yangyuan Country, Yangyuan, Hebei 075700, China |
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| Abstract: |
| In order to make full use of limited resources of rainfall and to increase water use efficiency of crops in sloping dryland, the experiment was carried out at Qiansuobao Dryland Farming Experimental Station in
Huaian County, Hebei Province, China, with four ridge and furrow planting patterns, including narrow earth ridge and furrow (NER), wide earth ridge and furrow (WER), narrow film mulched ridge and furrow (NFR) and wide film-mulched ridge a
nd furrow (WFR), and conventional flat planting (CK), to investigate the effects of different ridge and furrow cultivation patterns on soil water content, water use efficiency and yield of pumpkin. The results showed that the ridge and furrow planting could make water to be concentrated into a small effective cultivation area and improve the condition of soil moisture distribution. The effects of different treatments were ranked as: WFR＞NFR＞WER＞NER＞CK. Furthermore, the effect of plastic film covering was greater than that of the width of ridges. The
effect of ridging treatments on soil moisture in surface layer was more remarkable than that in lower layer. All of ridging treatments could increase water use efficiency, but the difference between earth ridging and flat planting was not significant. The water use efficiency of WFR and NFR was 40.85 kg·hm-2·mm-1 and 39.03 kg·hm-2·mm-1 respectively, which was significantly higher compared to CK (30.27 kg·hm-2·mm-1) (P<0.05). Although the water use efficiency of wide ridging was higher than that of narrow ridging, the difference between them was not significant. Compared with the control, the pumpkin yield of all ridging treatments increased by 4.23%～32.39% and the economic benefit increased by 176.2～1 210.4 yuan·hm-2. Particularly, the yield of WFR and NFR was very significantly higher than that of the control (P<0.01), in which the output benefit of WFR was the highest among all treatments. Therefore, the planting pattern of wide film-mulched ridge and furrow is a highly efficient rainwater-harvesting technique for pumpkin production in the sloping dryland area in northwest Hebei Province. |
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