| Study on the daptability of subsurface drip irrigation capillary burying depth and cultivation method under winter wheat\|summer maize rotation mode |
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| DOI：10.7606/j.issn.1000-7601.2025.02.23 |
| Key Words: winter wheat\|summer maize rotation subsurface drip irrigation burying depth of capillaries rotary tillage no tillage |
| Author Name | Affiliation | | ZHANG Jun | Shaanxi Provincial Land Engineering Construction Group Co., Ltd., Xi’an, Shaanxi, 710075, China
Shaanxi Dijian Guantian Investment and Construction Co., Ltd., Baoji, Shaanxi, 721000, China | | MU Fei | College of Water Resources and Architectural Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China | | ZHANG Linlin | Shaanxi Huanghe Guxian Water Conservancy Development Co., Ltd., Xi’an, Shaanxi 710032, China |
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| Abstract: |
| To determine the optimal burial depth for subsurface drip irrigation capillaries and the corresponding cultivation methods, the study focused on the winter wheat\|summer maize rotation area in the Guanzhong region. Five capillary burial depths (0, 10 cm, 20 cm, 30 cm, and 40 cm) and two cultivation methods (rotary tillage and no\|tillage) were set up, and their effects on the growth and yield of winter wheat and summer maize were analyzed. The results indicated that compared with surface drip irrigation, subsurface drip irrigation had a promoting effect on the growth and yield of winter wheat\|summer maize. The capillary burial depth of 40 cm treatment slowed down the early plant height and leaf area growth of winter wheat\|summer maize (2.42%~21.03%), and significantly reduced the dry matter accumulation of summer corn (8.47%). Compared with surface drip irrigation, the yield increase of winter wheat\|summer maize was 3.55%~7.68% and 2.53%~5.16%, respectively. When the capillary burial depth was set to 30 cm or 40 cm, no significant differences were observed between the various cultivation methods. Considering field production practices, the combination of no\|tillage and underground drip irrigation with a capillary burial depth of 30 cm is recommended as a more suitable planting method for the winter wheat\|summer maize rotation system in the Guanzhong region. |
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