Effects of super absorbent dosage on water use of soil and growth of potato
The semi-arid area in middle of Ningxia has suffered from dry climate, which causes intensive evaporation of soil and low yield of potato. Therefore, a field study was conducted to determine the effects of super absorbent dosage on water status of dryland soil, growth and yield of potato, and water...
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Zhejiang University Press
2015-09-01
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| Series: | 浙江大学学报. 农业与生命科学版 |
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| Online Access: | https://www.academax.com/doi/10.3785/j.issn.1008-9209.2015.01.284 |
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| author | Hou Xianqing Li Rong He Wenshou Dai Xiaohua Ma Kun Liang Yi Ma Gangcheng |
| author_facet | Hou Xianqing Li Rong He Wenshou Dai Xiaohua Ma Kun Liang Yi Ma Gangcheng |
| author_sort | Hou Xianqing |
| collection | DOAJ |
| description | The semi-arid area in middle of Ningxia has suffered from dry climate, which causes intensive evaporation of soil and low yield of potato. Therefore, a field study was conducted to determine the effects of super absorbent dosage on water status of dryland soil, growth and yield of potato, and water use efficiency (WUE), by comparing two different types of super absorbents (Wote and Microbe). Two super absorbents were diluted in ratio of 1∶100 before bunch planting at different application rates. Two super absorbents in different dosage in the experiments were set as follows: Wote super absorbent of 30 kg/hm<sup>2</sup>(M<sub>2</sub>), Wote super absorbent of 60 kg/hm<sup>2</sup> (M<sub>4</sub>), Wote super absorbent of 90 kg/hm<sup>2</sup>(M<sub>6</sub>), Microbe super absorbent of 30 kg/hm<sup>2</sup>(N<sub>2</sub>), Microbe super absorbent of 60 kg/hm<sup>2</sup>(N<sub>4</sub>), and Microbe super absorbent of 90 kg/hm<sup>2</sup>(N<sub>6</sub>). The treatment with no super absorbent applying was marked as the control.The results showed that, the application of Wote or Microbe super absorbent had greatly improved the water storage of soil layers at 0-100 cm from early florescence stage to maturity stage of potato, and the effects increased along with the applying dosage. The M<sub>4</sub> and M<sub>6</sub> treatments had better effect on water conservation, and water storage of soil layers at 0-100 cm were 55.1% and 62.1% higher than that of the control, respectively. The soil water contents of Microbe super absorbent treatments were significantly higher than that of the control in the early stage of potato. However, the Wote super absorbent treatments significantly improved soil water content at expansion-maturity stage.The application of Microbe super absorbent significantly promoted the growth in the early florescence stage of potato, with plant height, stem diameter and biomass of potato significantly higher than the control. In contrast, the application of Wote super absorbent significantly promoted the growth at expansion-maturity stage of potato, with plant height, stem diameter and biomass of potato significantly higher than the control.Higher yield and WUE were also achieved by the application of Wote and Microbe super absorbents, with optimum dosage of 90 kg/hm<sup>2</sup> for Wote super absorbent, and the yield and WUE of potato were increased by 41.4% and 86.5%, comparing with the control, respectively. Meanwhile, the commodity rate was the highest (87.5%) with optimum dosage of 60 kg/hm<sup>2</sup> for Wote super absorbent.In conclusion, the soil super absorbents could not only improve the water status of soil and WUE, but also promote the growth and yield of potato. The potato yield, WUE and commodity rate were the highest in the treatments of Wote super absorbent of 60 90 kg/hm<sup>2</sup>. |
| format | Article |
| id | doaj-art-02001a7874ae44ad992e99be754655b1 |
| institution | DOAJ |
| issn | 1008-9209 2097-5155 |
| language | English |
| publishDate | 2015-09-01 |
| publisher | Zhejiang University Press |
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| series | 浙江大学学报. 农业与生命科学版 |
| spelling | doaj-art-02001a7874ae44ad992e99be754655b12025-08-20T03:16:08ZengZhejiang University Press浙江大学学报. 农业与生命科学版1008-92092097-51552015-09-014155856610.3785/j.issn.1008-9209.2015.01.28410089209Effects of super absorbent dosage on water use of soil and growth of potatoHou XianqingLi RongHe WenshouDai XiaohuaMa KunLiang YiMa GangchengThe semi-arid area in middle of Ningxia has suffered from dry climate, which causes intensive evaporation of soil and low yield of potato. Therefore, a field study was conducted to determine the effects of super absorbent dosage on water status of dryland soil, growth and yield of potato, and water use efficiency (WUE), by comparing two different types of super absorbents (Wote and Microbe). Two super absorbents were diluted in ratio of 1∶100 before bunch planting at different application rates. Two super absorbents in different dosage in the experiments were set as follows: Wote super absorbent of 30 kg/hm<sup>2</sup>(M<sub>2</sub>), Wote super absorbent of 60 kg/hm<sup>2</sup> (M<sub>4</sub>), Wote super absorbent of 90 kg/hm<sup>2</sup>(M<sub>6</sub>), Microbe super absorbent of 30 kg/hm<sup>2</sup>(N<sub>2</sub>), Microbe super absorbent of 60 kg/hm<sup>2</sup>(N<sub>4</sub>), and Microbe super absorbent of 90 kg/hm<sup>2</sup>(N<sub>6</sub>). The treatment with no super absorbent applying was marked as the control.The results showed that, the application of Wote or Microbe super absorbent had greatly improved the water storage of soil layers at 0-100 cm from early florescence stage to maturity stage of potato, and the effects increased along with the applying dosage. The M<sub>4</sub> and M<sub>6</sub> treatments had better effect on water conservation, and water storage of soil layers at 0-100 cm were 55.1% and 62.1% higher than that of the control, respectively. The soil water contents of Microbe super absorbent treatments were significantly higher than that of the control in the early stage of potato. However, the Wote super absorbent treatments significantly improved soil water content at expansion-maturity stage.The application of Microbe super absorbent significantly promoted the growth in the early florescence stage of potato, with plant height, stem diameter and biomass of potato significantly higher than the control. In contrast, the application of Wote super absorbent significantly promoted the growth at expansion-maturity stage of potato, with plant height, stem diameter and biomass of potato significantly higher than the control.Higher yield and WUE were also achieved by the application of Wote and Microbe super absorbents, with optimum dosage of 90 kg/hm<sup>2</sup> for Wote super absorbent, and the yield and WUE of potato were increased by 41.4% and 86.5%, comparing with the control, respectively. Meanwhile, the commodity rate was the highest (87.5%) with optimum dosage of 60 kg/hm<sup>2</sup> for Wote super absorbent.In conclusion, the soil super absorbents could not only improve the water status of soil and WUE, but also promote the growth and yield of potato. The potato yield, WUE and commodity rate were the highest in the treatments of Wote super absorbent of 60 90 kg/hm<sup>2</sup>.https://www.academax.com/doi/10.3785/j.issn.1008-9209.2015.01.284super absorbentsoil watercrop growthpotato yieldwater use efficiency |
| spellingShingle | Hou Xianqing Li Rong He Wenshou Dai Xiaohua Ma Kun Liang Yi Ma Gangcheng Effects of super absorbent dosage on water use of soil and growth of potato 浙江大学学报. 农业与生命科学版 super absorbent soil water crop growth potato yield water use efficiency |
| title | Effects of super absorbent dosage on water use of soil and growth of potato |
| title_full | Effects of super absorbent dosage on water use of soil and growth of potato |
| title_fullStr | Effects of super absorbent dosage on water use of soil and growth of potato |
| title_full_unstemmed | Effects of super absorbent dosage on water use of soil and growth of potato |
| title_short | Effects of super absorbent dosage on water use of soil and growth of potato |
| title_sort | effects of super absorbent dosage on water use of soil and growth of potato |
| topic | super absorbent soil water crop growth potato yield water use efficiency |
| url | https://www.academax.com/doi/10.3785/j.issn.1008-9209.2015.01.284 |
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