This type is used in concrete to be exposed to alkali soil and ground water sulfates which react with ( C 3 A ) causing disruptive expansion.
12.
Today, due to the influence of the water conservancy facilities, the water logging is almost inexistence, huge areas of saline-alkali soil are reformed.
13.
Before the 1950s, Fen River valley s flood areas is 13.34 ten thousand hectares, saline-alkali soil is 6.67 ten thousand hectares.
14.
Survey of the Salt Lake Valley of Utah and the Pecos River Valley of New Mexico concentrated on alkali soil areas where irrigation and land reclamation projects were planned.
15.
It is difficult to survive in alkali soils for the trees with deeper rooting system which can be more than 60 meters deep in good non-alkali soils.
16.
It is difficult to survive in alkali soils for the trees with deeper rooting system which can be more than 60 meters deep in good non-alkali soils.
17.
Top soil loss takes place in alkali soils due to erosion by rain water surface flows or drainage as they form colloids ( fine mud ) in contact with water.
18.
SSP is non-nitrogen fertiliser containing Phosphate in the form of monocalcium phosphate and Gypsum which is best suited for Alkali soils to supplement Phosphate and reduce soil alkalinity.
19.
In the Agricultural History journal, historian Leonard Arrington theorized that the problems was with the chemical nature of the beets made them difficult to convert since they were grown in alkali soil.
20.
A large part of his work involved identifying plants which grew in that alkali soil and contained substances poisonous to horses, cattle, sheep, and hogs ( lechuguilla, yellowweed, pinguey, locoweed ).
