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Effect of straw mulching on water consumption components and crop coefficients in a maize field.
- Source :
-
Archives of Agronomy & Soil Science . May2023, Vol. 69 Issue 6, p835-846. 12p. - Publication Year :
- 2023
-
Abstract
- Clarifying the components and regulatory mechanisms of evapotranspiration is essential for irrigation scheduling. In this study, straw mulching and non-mulching treatments were set up in a maize field with drip irrigation, where the water use and related factors were determined in 2014 and 2015. Straw mulching slightly reduced evapotranspiration by 2.6% on average for the two years. However, transpiration of straw mulching increased by 10.0% and 9.0% and soil evaporation decreased by 36.0% and 31.1%, compared to the non-mulching treatment for 2014 and 2015, respectively. Straw mulching decreased the average crop coefficients of the entire growth period (from 1.03 to 1.01) while increasing them in the mid-growth period (from 1.20 to 1.22). The net radiation above the canopy for straw mulching was 92.3%–96.3% of that for non-mulching treatment, which could explain the lower evapotranspiration of the mulching treatment. The daytime canopy conductance of straw mulching was 30% higher than that of non-mulching treatment, which could potentially result in higher biomass. This study provided essential parameters for water management of drip irrigation maize fields with straw mulching in similar areas. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03650340
- Volume :
- 69
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Archives of Agronomy & Soil Science
- Publication Type :
- Academic Journal
- Accession number :
- 162840632
- Full Text :
- https://doi.org/10.1080/03650340.2022.2036334