Effects of Drip Tape Layout and Flow Rate on Water and Nitrogen Distributions within the Root Zone and Summer Maize Yield in Sandy Tidal Soil
Drip tape layout and flow rate are crucial variables that impact the effects of drip fertigation. To investigate the influence of drip tape layout and flow rate on the soil water and nitrogen transport in summer maize in sandy tidal soil, field experiments were conducted for two years. Two drip tape...
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| Format: | Article |
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MDPI AG
2023-10-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/13/11/2689 |
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| author | Qing Sun Hongxiang Zhang Xuejie Li Zixuan Zhao Zengxu Li Peiyu Zhang Shutang Liu Wen Jiang Xuefang Sun |
| author_facet | Qing Sun Hongxiang Zhang Xuejie Li Zixuan Zhao Zengxu Li Peiyu Zhang Shutang Liu Wen Jiang Xuefang Sun |
| author_sort | Qing Sun |
| collection | DOAJ |
| description | Drip tape layout and flow rate are crucial variables that impact the effects of drip fertigation. To investigate the influence of drip tape layout and flow rate on the soil water and nitrogen transport in summer maize in sandy tidal soil, field experiments were conducted for two years. Two drip tape layouts were set: one tape serving for two crop rows (N) and one tape serving for each crop row (E), with two levels of drip flow rate, i.e., high (2 L/h; H) and low (1.3 L/h; L). The results show that under the same drip tape layout, the lower the drip emitter flow rate, the more upright the shape of wetted soil volume. The maximum vertical and horizontal water transport distance under NL treatment was higher than that under NH, EH, and EL treatments. After surface drip fertigation, nitrate nitrogen accumulated near and at the edge of the wetted soil volume. In 2020, under NL treatment, nitrate nitrogen transported to a 55 cm soil layer, which was 22.22%, 71.42%, and 57.14% deeper than that under NH, EH, and EL treatments, respectively. In 2021, nitrate nitrogen could transport to a 60 cm soil layer in both NL and NH treatments. The maximum concentration of ammonium nitrogen was nearby the emitter. Under NL treatment, ammonium nitrogen was transported to 48 and 60 cm soil layers below the emitter in 2020 and 2021, respectively, which was deeper than that observed under NH, EH, and EL treatments. The soil inorganic nitrogen residue of the NL was lower than that of the NH, EH, and EL treatments. Compared with NH, EH, and EL treatments, the two-year maize yield under NL treatment increased by 11.09%, 13.47%, and 8.66% on average, respectively. NL treatment exhibited the highest water use efficiency and nitrogen fertilizer productivity. Therefore, NL treatment (one drip tape serving for two rows with 1.3 L/h flow rate) could promote the absorption of water and nutrients, reduce inorganic nitrogen residue, and to obtain high maize yield in sandy tidal soil. |
| first_indexed | 2024-03-09T17:06:26Z |
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| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-09T17:06:26Z |
| publishDate | 2023-10-01 |
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| series | Agronomy |
| spelling | doaj.art-700e23a476aa4de19a962295e2de76b62023-11-24T14:23:36ZengMDPI AGAgronomy2073-43952023-10-011311268910.3390/agronomy13112689Effects of Drip Tape Layout and Flow Rate on Water and Nitrogen Distributions within the Root Zone and Summer Maize Yield in Sandy Tidal SoilQing Sun0Hongxiang Zhang1Xuejie Li2Zixuan Zhao3Zengxu Li4Peiyu Zhang5Shutang Liu6Wen Jiang7Xuefang Sun8Shandong Provincial Key Laboratory of Dryland Farming Technology, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, ChinaShandong Provincial Key Laboratory of Dryland Farming Technology, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, ChinaShandong Provincial Key Laboratory of Dryland Farming Technology, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, ChinaShandong Provincial Key Laboratory of Dryland Farming Technology, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, ChinaShandong Provincial Key Laboratory of Dryland Farming Technology, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, ChinaShandong Provincial Key Laboratory of Dryland Farming Technology, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, ChinaCollege of Resources and Environment, Qingdao Agricultural University, Qingdao 266109, ChinaShandong Provincial Key Laboratory of Dryland Farming Technology, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, ChinaShandong Provincial Key Laboratory of Dryland Farming Technology, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, ChinaDrip tape layout and flow rate are crucial variables that impact the effects of drip fertigation. To investigate the influence of drip tape layout and flow rate on the soil water and nitrogen transport in summer maize in sandy tidal soil, field experiments were conducted for two years. Two drip tape layouts were set: one tape serving for two crop rows (N) and one tape serving for each crop row (E), with two levels of drip flow rate, i.e., high (2 L/h; H) and low (1.3 L/h; L). The results show that under the same drip tape layout, the lower the drip emitter flow rate, the more upright the shape of wetted soil volume. The maximum vertical and horizontal water transport distance under NL treatment was higher than that under NH, EH, and EL treatments. After surface drip fertigation, nitrate nitrogen accumulated near and at the edge of the wetted soil volume. In 2020, under NL treatment, nitrate nitrogen transported to a 55 cm soil layer, which was 22.22%, 71.42%, and 57.14% deeper than that under NH, EH, and EL treatments, respectively. In 2021, nitrate nitrogen could transport to a 60 cm soil layer in both NL and NH treatments. The maximum concentration of ammonium nitrogen was nearby the emitter. Under NL treatment, ammonium nitrogen was transported to 48 and 60 cm soil layers below the emitter in 2020 and 2021, respectively, which was deeper than that observed under NH, EH, and EL treatments. The soil inorganic nitrogen residue of the NL was lower than that of the NH, EH, and EL treatments. Compared with NH, EH, and EL treatments, the two-year maize yield under NL treatment increased by 11.09%, 13.47%, and 8.66% on average, respectively. NL treatment exhibited the highest water use efficiency and nitrogen fertilizer productivity. Therefore, NL treatment (one drip tape serving for two rows with 1.3 L/h flow rate) could promote the absorption of water and nutrients, reduce inorganic nitrogen residue, and to obtain high maize yield in sandy tidal soil.https://www.mdpi.com/2073-4395/13/11/2689summer maizedrip fertigationwater and nitrogen transportinorganic nitrogen residueyield |
| spellingShingle | Qing Sun Hongxiang Zhang Xuejie Li Zixuan Zhao Zengxu Li Peiyu Zhang Shutang Liu Wen Jiang Xuefang Sun Effects of Drip Tape Layout and Flow Rate on Water and Nitrogen Distributions within the Root Zone and Summer Maize Yield in Sandy Tidal Soil Agronomy summer maize drip fertigation water and nitrogen transport inorganic nitrogen residue yield |
| title | Effects of Drip Tape Layout and Flow Rate on Water and Nitrogen Distributions within the Root Zone and Summer Maize Yield in Sandy Tidal Soil |
| title_full | Effects of Drip Tape Layout and Flow Rate on Water and Nitrogen Distributions within the Root Zone and Summer Maize Yield in Sandy Tidal Soil |
| title_fullStr | Effects of Drip Tape Layout and Flow Rate on Water and Nitrogen Distributions within the Root Zone and Summer Maize Yield in Sandy Tidal Soil |
| title_full_unstemmed | Effects of Drip Tape Layout and Flow Rate on Water and Nitrogen Distributions within the Root Zone and Summer Maize Yield in Sandy Tidal Soil |
| title_short | Effects of Drip Tape Layout and Flow Rate on Water and Nitrogen Distributions within the Root Zone and Summer Maize Yield in Sandy Tidal Soil |
| title_sort | effects of drip tape layout and flow rate on water and nitrogen distributions within the root zone and summer maize yield in sandy tidal soil |
| topic | summer maize drip fertigation water and nitrogen transport inorganic nitrogen residue yield |
| url | https://www.mdpi.com/2073-4395/13/11/2689 |
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