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Effects of Tillage and Gypsum Incorporation on Rain Runoff and Crust Strength in Field Soils Irrigated with Saline‐Sodic Water
Author(s) -
Frenkel H.,
Hadas A.
Publication year - 1981
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1981.03615995004500010034x
Subject(s) - surface runoff , tillage , gypsum , hydrology (agriculture) , environmental science , sodic soil , soil water , storm , crust , saline water , soil crust , soil science , geology , agronomy , salinity , geotechnical engineering , ecology , paleontology , oceanography , biology , geophysics
The effects that two tillage‐gypsum incorporation patterns have on rain runoff and crust strength were studied in two fields irrigated with saline‐sodic water (EC − 5.8 mmho cm −1 , SAR − 18) and fresh water (EC − 0.95 mmho cm −1 ; SAR − 2.6). Leaving the soil surface rough (without ridging) reduced runoff to a minimum (3%) compared with other ridging patterns, where up to 40% of the rainfall per storm may be lost regardless of the direction of the ridge in respect to the area gradient or to gypsum application. The experiments were carried out in adjacent fields having a general slope of 1% and an annual mean rainfall of 371 mm.