As a dynamic system

Also in this issue:

The first in an agricultural research centennial series: Hilgard… California's first agricultural researcher

Progress in mechanization of wine grapes… economic factors

Potassium nutrition and deficiency in citrus

Glycerophosphate as a phosphate fertilizer

Boron and salinity—in vineyards of the west side, Fresno county

Cannery waste water for irrigation and ground water recharging

Germination of native desert shrubs

Survival of selected desert shrubs under dry soil conditions

Root depth studies with desert holly

Residual effects of lettuce herbicides on following crops

Mechanical properties of California-grown Monterey pine