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קהילה:
אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Tillage and saline irrigation effects on water and salt distribution in a sloping field
Year:
2000
Authors :
אסולין, שמואל
;
.
בן-חור, מני
;
.
זילברמן, י'
;
.
Volume :
64
Co-Authors:
Huang, Z.B., Institute of Soil and Water Conservation, Chinese Academy of Sciences, Ministry of Water Resources, Yangling, Shaanxi Province 712100, China
Assouline, S., Institute of Soil, Water and Environmental Sciences, A.R.O., Volcani Center, Bet Dagan 50250, Israel
Zilberman, J., Institute of Soil, Water and Environmental Sciences, A.R.O., Volcani Center, Bet Dagan 50250, Israel
Ben-Hur, M., Institute of Soil, Water and Environmental Sciences, A.R.O., Volcani Center, Bet Dagan 50250, Israel
Facilitators :
From page:
2096
To page:
2102
(
Total pages:
7
)
Abstract:
Application of saline water using moving irrigation systems (MIS) emi affect the water and salt distribution in the field mid the crop yield because of runoff formation. The objective of this study was to determine the effects of tillage and water application methods on the distributions of water content, salt concentration in soil, and corn (Zea mays L.) yield under irrigation with saline water by MIS. The experimental site was located in a forage corn field in the Negev, Israel. Three tillage treatments were studied: (i) conventional tillage (control); (ii) microbasin; and (iii) diked furrows (dike). The control and the microbasin plots were irrigated with sprinkler MIS, and the dike plots with flooding MIS. The studied parameters were measured in five sampling sites located 25 m apart along the slope. The average dry canopy yields of the whole slope in the control, dike, and microbasin treatments were 21.7, 25.3, and 30.6 Mg ha -1, respectively, and their coefficient of variance (CV) values along the slope were 7.9, 5.7, and 3.5%, respectively. In the control treatment, soil water content increased from 0.12 kg kg -1 upslope to 0.19.0 kg kg -1 downslope. In contrast, no slope effect on soil water content was found in the microbasin and dike treatments. The electrical conductivity (EC) of the 0- to 0.3-m soil layer in the control treatment increased in the downslope direction from 2.0 to 4.0 dS m -1. Conversely, in the microbasin and dike treatments, no consistent trend of the EC was observed with slope, and their average values were 3.4 and 7.0 dS m -1, respectively. It was suggested that these yield differences were related to the differences in the distribution of the soil water content and the salt concentration in soil within the field.
Note:
Related Files :
irrigation system
Israel
salt water
slope
Soil water
tillage
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
22052
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:49
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Scientific Publication
Tillage and saline irrigation effects on water and salt distribution in a sloping field
64
Huang, Z.B., Institute of Soil and Water Conservation, Chinese Academy of Sciences, Ministry of Water Resources, Yangling, Shaanxi Province 712100, China
Assouline, S., Institute of Soil, Water and Environmental Sciences, A.R.O., Volcani Center, Bet Dagan 50250, Israel
Zilberman, J., Institute of Soil, Water and Environmental Sciences, A.R.O., Volcani Center, Bet Dagan 50250, Israel
Ben-Hur, M., Institute of Soil, Water and Environmental Sciences, A.R.O., Volcani Center, Bet Dagan 50250, Israel
Tillage and saline irrigation effects on water and salt distribution in a sloping field
Application of saline water using moving irrigation systems (MIS) emi affect the water and salt distribution in the field mid the crop yield because of runoff formation. The objective of this study was to determine the effects of tillage and water application methods on the distributions of water content, salt concentration in soil, and corn (Zea mays L.) yield under irrigation with saline water by MIS. The experimental site was located in a forage corn field in the Negev, Israel. Three tillage treatments were studied: (i) conventional tillage (control); (ii) microbasin; and (iii) diked furrows (dike). The control and the microbasin plots were irrigated with sprinkler MIS, and the dike plots with flooding MIS. The studied parameters were measured in five sampling sites located 25 m apart along the slope. The average dry canopy yields of the whole slope in the control, dike, and microbasin treatments were 21.7, 25.3, and 30.6 Mg ha -1, respectively, and their coefficient of variance (CV) values along the slope were 7.9, 5.7, and 3.5%, respectively. In the control treatment, soil water content increased from 0.12 kg kg -1 upslope to 0.19.0 kg kg -1 downslope. In contrast, no slope effect on soil water content was found in the microbasin and dike treatments. The electrical conductivity (EC) of the 0- to 0.3-m soil layer in the control treatment increased in the downslope direction from 2.0 to 4.0 dS m -1. Conversely, in the microbasin and dike treatments, no consistent trend of the EC was observed with slope, and their average values were 3.4 and 7.0 dS m -1, respectively. It was suggested that these yield differences were related to the differences in the distribution of the soil water content and the salt concentration in soil within the field.
Scientific Publication
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