Drip fertigation regime for potato on sandy soil
文献类型：期刊论文
| 作者 | Feng, Zhiwen1,2; Wan, Shuqin1; Kang, Yaohu1,3; Liu, Shiping1 |
| 刊名 | EMIRATES JOURNAL OF FOOD AND AGRICULTURE
 |
| 出版日期 | 2017 |
| 卷号 | 29期号:6页码:476-484 |
| 关键词 | Drip fertigation Fertilization rate Irrigation water productivity Potato Yield |
| ISSN号 | 2079-052X |
| DOI | 10.9755/ejfa.2017-02-275 |
| 通讯作者 | Kang, Yaohu(kangyh@igsnrr.ac.cn) |
| 英文摘要 | To establish the optimum fertilizer rate and propose an appropriate drip fertigation regime for potato (Solanum tuberosum L.) on sandy soil, a two-year field experiment comparing different fertigation levels on potato yield, irrigation water productivity (IWP) and partial fertilizer productivity (PFP) was carried out during 2012-2013. The treatments included five fertigation levels: 10%, 30%, 50%, 70% and 90% of the recommended fertilizer dose of 420:105:495 of N:P: K in kg ha(-1) year(-1) in 2012; and 10%, 35%, 60%, 85% and 110% of the recommended dose of 390: 150: 465 of N: P: K in kg ha(-1) year(-1) in 2013. The recommended fertilizer dose was estimated based on the method of nutrient balance for a target yield of 45.0 Mg ha(-1). The soil matric potential at 20 cm depth beneath the emitters was controlled above -25 kPa for drip fertigation. Results showed the highest tuber yield was 38.0 Mg ha(-1) for 90% NPK in 2012 and 45.8 Mg ha(-1) for 60% NPK in 2013, which was significantly higher than that for 10% NPK. The highest IWP was for 70% NPK in 2012 and 60% NPK in 2013. The highest PFP values were 255.5 kg kg(-1) in 2012 and 316.4 kg kg(-1) in 2013, recorded in the 10% NPK plots and were significantly higher than for other fertigation treatments. High yield levels of potatoes and both high IWP and PFP could be reached by drip fertigation with 72% of the recommended fertilization dose. Compared with the recommended fertilizer dose, the yield and IWP of 72% NPK increased by 5.9% and 4.7%, respectively. It was possible to make average savings in one season alone of 136, 36 and 152 kg ha(-1) N, P2O5 and K2O, respectively. In conclusion, drip fertigation with 72% NPK should be considered optimum for potato production on sandy soils. Each fertilizer amount based on irrigation interval was applied with irrigation quota at 5-6 mm when soil matric potential at soil depths of 20 cm immediately under drip emitters reached -25 kPa. Furthermore, drip fertigation was triggered when 10 consecutive days were without fertigation or rainfall in 24 h exceeded 10 mm. |
| WOS关键词 | NORTH CHINA PLAIN ; ARECA-CATECHU L. ; IRRIGATED POTATO ; NITROGEN-FERTILIZER ; USE EFFICIENCY ; SOLANUM-TUBEROSUM ; NUTRIENT-UPTAKE ; COATED UREA ; YIELD ; WATER |
| 资助项目 | National Key Technology R&D Program of China[2012BAD06B01] ; National Key Technology R&D Program of China[2012BAD08B02] ; National Key Technology R&D Program of China[2013BAD05B08] |
| WOS研究方向 | Agriculture ; Food Science & Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:000409354200010 |
| 出版者 | UNITED ARAB EMIRATES UNIV |
| 资助机构 | National Key Technology R&D Program of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/61605]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Kang, Yaohu |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, 11A Datun Rd, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Feng, Zhiwen,Wan, Shuqin,Kang, Yaohu,et al. Drip fertigation regime for potato on sandy soil[J]. EMIRATES JOURNAL OF FOOD AND AGRICULTURE,2017,29(6):476-484. |
| APA | Feng, Zhiwen,Wan, Shuqin,Kang, Yaohu,&Liu, Shiping.(2017).Drip fertigation regime for potato on sandy soil.EMIRATES JOURNAL OF FOOD AND AGRICULTURE,29(6),476-484. |
| MLA | Feng, Zhiwen,et al."Drip fertigation regime for potato on sandy soil".EMIRATES JOURNAL OF FOOD AND AGRICULTURE 29.6(2017):476-484. |
入库方式： OAI收割
来源：地理科学与资源研究所
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