عنوان

No-tillage and high-residue practices reduce soil water evaporation

Number

LA4cg3g2cf

.Language of Text, Soundtrack etc

انگلیسی

Title Proper

No-tillage and high-residue practices reduce soil water evaporation

General Material Designation

[Article]

First Statement of Responsibility

Mitchell, Jeffrey P; Singh, Purnendu N; Wallender, Wesley W; Munk, Daniel S; Wroble, Jon F; Horwath, William R; Hogan, Philip; Roy, Robert; Hanson, Blaine R

Text of Note

Reducing tillage and maintaining crop residues on the soil surface could improve the water use efficiency of California crop production. In two field studies comparing no-tillage with standard tillage operations (following wheat silage harvest and before corn seeding), we estimated that 0.89 and 0.97 inches more water was retained in the no-tillage soil than in the tilled soil. In three field studies on residue coverage, we recorded that about 0.56, 0.58 and 0.42 inches more water was retained in residue-covered soil than in bare soil following 6 to 7 days of overhead sprinkler irrigation. Assuming a seasonal crop evapotranspiration demand of 30 inches, coupling no-tillage with practices preserving high residues could reduce summer soil evaporative losses by about 4 inches (13%). However, practical factors, including the need for different equipment and management approaches, will need to be considered before adopting these practices.

Date of Publication

2012

Title

California Agriculture

Volume Number

66/2

Entry Element

Mitchell, Jeffrey P; Singh, Purnendu N; Wallender, Wesley W; Munk, Daniel S; Wroble, Jon F; Horwath, William R; Hogan, Philip; Roy, Robert; Hanson, Blaine R

Electronic name

[Article]

275578

a

Y