Potato yield gaps across the rainfed Yin-mountain Hilly Area of China
Yin-mountain Hilly Area is one of the ideal regions for potato (Solanum tuberosum) production in China. However, potato yield is severely limited as a result of rain-fed crop mode due to water deficiency, as well as an inadequate farming practices. In this study, yield gaps were determined by using...
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| Format: | Article |
| Language: | English |
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Elsevier
2018-11-01
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| Series: | Journal of Integrative Agriculture |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095311918620349 |
| _version_ | 1818893114934296576 |
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| author | Li-guo JIA Yang CHEN Yong-lin QIN Rui-fang LIANG Shi-xin CUI Zhong MA Ming-shou FAN |
| author_facet | Li-guo JIA Yang CHEN Yong-lin QIN Rui-fang LIANG Shi-xin CUI Zhong MA Ming-shou FAN |
| author_sort | Li-guo JIA |
| collection | DOAJ |
| description | Yin-mountain Hilly Area is one of the ideal regions for potato (Solanum tuberosum) production in China. However, potato yield is severely limited as a result of rain-fed crop mode due to water deficiency, as well as an inadequate farming practices. In this study, yield gaps were determined by using attainable yield (Ya) as a benchmark under optimized management practices, i.e., micro-ridge and side planting with plastic-mulching (MS), and flat planting with plastic-mulching (PM). The yields under MS and PM modes are defined as Ya1 and Ya2, respectively. Under the same field with MS and PM modes but different densities and fertilizer usages and so on, it was defined as simulated farmers' practices. The yield of simulated farmers' practices (Yf1) reached 57.3 and 69.6% of Ya1 and Ya2, respectively, while the average yield of 298 randomly surveyed farmers (Yf2) reached only 37.0 and 47.8% of Ya1 and Ya2 for rain-fed potato, respectively. The gaps of water use efficiency exhibited similar pattern. Further analysis shows that improper measures in rainwater conservation and accumulation, and other management practices contributed to 18.5, 18.2, and 42.6% of yield gap between Ya1 and Yf2. Improper nutrition management, including overuse of nitrogen and the deficiency of phosphorus and potassium supplication, was one of the important reasons of yield gap. The results indicate the possibilities of increasing rain-fed potato yields by optimized water and fertilizer managements in the Yin-mountain Hilly Area. |
| first_indexed | 2024-12-19T18:07:27Z |
| format | Article |
| id | doaj.art-59b37d2a64d24c75900ef516ba29d2d9 |
| institution | Directory Open Access Journal |
| issn | 2095-3119 |
| language | English |
| last_indexed | 2024-12-19T18:07:27Z |
| publishDate | 2018-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Integrative Agriculture |
| spelling | doaj.art-59b37d2a64d24c75900ef516ba29d2d92022-12-21T20:11:24ZengElsevierJournal of Integrative Agriculture2095-31192018-11-01171124182425Potato yield gaps across the rainfed Yin-mountain Hilly Area of ChinaLi-guo JIA0Yang CHEN1Yong-lin QIN2Rui-fang LIANG3Shi-xin CUI4Zhong MA5Ming-shou FAN6College of Agronomy, Inner Mongolia Agricultural University, Hohhot 010018, P.R.ChinaCollege of Ecology & Environmental Science, Inner Mongolia Agricultural University, Hohhot 010019, P.R.ChinaCollege of Agronomy, Inner Mongolia Agricultural University, Hohhot 010018, P.R.ChinaCollege of Agronomy, Inner Mongolia Agricultural University, Hohhot 010018, P.R.ChinaCollege of Agronomy, Inner Mongolia Agricultural University, Hohhot 010018, P.R.ChinaDepartment of Biology, Truman State University, Kirksville, MO 63501, USACollege of Agronomy, Inner Mongolia Agricultural University, Hohhot 010018, P.R.China; Correspondence FAN Ming-shou, Tel: +86-471-4307390Yin-mountain Hilly Area is one of the ideal regions for potato (Solanum tuberosum) production in China. However, potato yield is severely limited as a result of rain-fed crop mode due to water deficiency, as well as an inadequate farming practices. In this study, yield gaps were determined by using attainable yield (Ya) as a benchmark under optimized management practices, i.e., micro-ridge and side planting with plastic-mulching (MS), and flat planting with plastic-mulching (PM). The yields under MS and PM modes are defined as Ya1 and Ya2, respectively. Under the same field with MS and PM modes but different densities and fertilizer usages and so on, it was defined as simulated farmers' practices. The yield of simulated farmers' practices (Yf1) reached 57.3 and 69.6% of Ya1 and Ya2, respectively, while the average yield of 298 randomly surveyed farmers (Yf2) reached only 37.0 and 47.8% of Ya1 and Ya2 for rain-fed potato, respectively. The gaps of water use efficiency exhibited similar pattern. Further analysis shows that improper measures in rainwater conservation and accumulation, and other management practices contributed to 18.5, 18.2, and 42.6% of yield gap between Ya1 and Yf2. Improper nutrition management, including overuse of nitrogen and the deficiency of phosphorus and potassium supplication, was one of the important reasons of yield gap. The results indicate the possibilities of increasing rain-fed potato yields by optimized water and fertilizer managements in the Yin-mountain Hilly Area.http://www.sciencedirect.com/science/article/pii/S2095311918620349rain-fedpotatoyield gapwater managementYin-mountain Hilly Area |
| spellingShingle | Li-guo JIA Yang CHEN Yong-lin QIN Rui-fang LIANG Shi-xin CUI Zhong MA Ming-shou FAN Potato yield gaps across the rainfed Yin-mountain Hilly Area of China Journal of Integrative Agriculture rain-fed potato yield gap water management Yin-mountain Hilly Area |
| title | Potato yield gaps across the rainfed Yin-mountain Hilly Area of China |
| title_full | Potato yield gaps across the rainfed Yin-mountain Hilly Area of China |
| title_fullStr | Potato yield gaps across the rainfed Yin-mountain Hilly Area of China |
| title_full_unstemmed | Potato yield gaps across the rainfed Yin-mountain Hilly Area of China |
| title_short | Potato yield gaps across the rainfed Yin-mountain Hilly Area of China |
| title_sort | potato yield gaps across the rainfed yin mountain hilly area of china |
| topic | rain-fed potato yield gap water management Yin-mountain Hilly Area |
| url | http://www.sciencedirect.com/science/article/pii/S2095311918620349 |
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