[1]LI Enhui,MU Yangyang,HE Yanan,et al.Effects of Wheat/Alfalfa Intercropping Systems on Soil Moisture and Water Utilization Efficiency[J].Research of Soil and Water Conservation,2020,27(01):54-58,65.
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Effects of Wheat/Alfalfa Intercropping Systems on Soil Moisture and Water Utilization Efficiency
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
27
Number of periods:
2020 01
Page number:
54-58,65
Column:
Public date:
2020-02-20
- Title:
- Effects of Wheat/Alfalfa Intercropping Systems on Soil Moisture and Water Utilization Efficiency
- Keywords:
- intercropping; soil moisture; water use efficiency; wheat; alfalfa
- CLC:
- S54; S344.3; S152.7
- DOI:
- -
- Abstract:
- A study on changes in soil moisture and water use efficiency of wheat monoculture, alfalfa monoculture and wheat/alfalfa intercropping system in different growing stages was conducted in mid-southern Shanxi Province in 2017. Meanwhile, the water consumption status and the differences of water use efficiency of systematic crops in different treatments were analyzed. The results showed that the average soil water contents of different treatments in mid-March and early October were higher than those in late June, and the soil moisture contents and the soil water storage in different growth periods decreased in the order: wheat monoculture>wheat/alfalfa intercropping> alfalfa monoculture; in wheat and alfalfa growth period(from March to June), wheat/alfalfa intercropping biomass(5 742.64 kg/hm2)increased by 17.67% compared with wheat monoculture, and increased by 44.07% compared with alfalfa monoculture, and the water use efficiency of wheat/alfalfa intercropping [27.38 kg/(mm·hm2)] was 16.98% and 62.38% higher than that of wheat monoculture and alfalfa monoculture; from March to October, Compared with biomass of wheat monoculture and alfalfa monoculture, biomass(8 036.17 kg/hm2)of wheat/alfalfa intercropping increased by 41.17% and 31.49%, respectively, and the water use efficiency [15.73 kg/(mm·hm2)] of wheat/alfalfa intercropping reduced by 30.80% compared with wheat monoculture, but increased by 30.08% compared with alfalfa monoculture. In alfalfa growth alone(from June to October), biomass of wheat and alfalfa growth period was 28.6% higher than that of alfalfa monoculture, and the biomass of intercropped alfalfa was 5.11% higher than that of the growing period of wheat monoculture and alfalfa monoculture. It is concluded that wheat/alfalfa intercropping can significantly improve the water use efficiency in the system.
- References:
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Last Update:
2020-02-25