[1]MIAO Qingfeng,NI Dongning,LI Ruiping,et al.Characteristics of Soil Salt Transfer Under Intercropping and Border-Furrow Irrigation Pattern[J].Research of Soil and Water Conservation,2019,26(03):108-113.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
26
Number of periods:
2019 03
Page number:
108-113
Column:
Public date:
2019-04-12
- Title:
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Characteristics of Soil Salt Transfer Under Intercropping and Border-Furrow Irrigation Pattern
- Author(s):
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MIAO Qingfeng, NI Dongning, LI Ruiping, FAN Leilei, SHI Haibin
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Water Conservancy and Civil Engineering College, Inner Mongolia Agricultural University, Hohhot 010018, China
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- Keywords:
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wheat/maize intercropping; border-furrow irrigation; soil salt; Hetao Irrigation District
- CLC:
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S156.4
- DOI:
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- Abstract:
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In view of serious water waste and increasing soil salinization in the present agricultural production situation for the wheat/maize intercropping conventional irrigation pattern in Hetao Irrigation District. On the basis of ridge furrow irrigation technology, the wheat/maize intercropping border-furrow irrigation technology was first put forward. The dynamic equilibrium of soil salinity in the vertical section of crop root zone in intercropping population under two irrigation patterns was compared. The results showed that the intercropping group had not effectively eliminated the soil salt after several irrigations in the whole growth period, instead, under the effect of irrigation water salt and mineralized groundwater recharge, the salt accumulation situation was obvious; the soil salt storage for border and furrow irrigation maize field increased by 211.08 g and 300.34 g per unit area on average; salt storage increased 202.91 g and 200.43 g, respectively, the conventional irrigation and border-furrow irrigation wheat, the difference was not significant. By quantitative analysis of salt content in soil profile, it was found that the change of soil salt content in border irrigation and furrow irrigation maize was the largest for 0-60 cm layer and 20-60 cm layer, respectively, and furrow irrigation maize was in the state of salt accumulation in the surface soil of 0-20 cm in the whole growth period. The change of salt storage in each soil layer of wheat was the largest for 0-40 cm. The research results can provide technical support for the application of border-furrow irrigation technology in Hetao Irrigation District.