California Agriculture, April 1961
Volume 15, Number 4
Placement of lysimeters in sulfur fertilization studies
Geographic origin of barley seed produces no effect on yield
by Armen V. Sarquis , Bill B. Fischer , Frank G. Parsons , Milton D. Miller
Abstract Not Available – First paragraph follows: Field-scale trials conducted over a three-year period in the Coalinga area of Fresno County show geographic source of California grown barley planting seed of the same variety has no significant effect on yield, if the quality is otherwise equal. Certified planting stock grown each year at three different geographic locations—Davis, Coalinga, and El Centro—was obtained and planted annually in replicated trials and harvested during 1958, 1959 and 1960.
A lysimeter study of sulfur fertilization of an annual-range soil
by Cyrus M. McKell , William A. Williams
Abstract Not Available – First paragraph follows: A lysimeter study, to determine the rate and frequency of sulfur fertilization and the source of sulfur for maximum returns, was initiated with the annual legume, rose clover, on Vista sandy loam. Such factors as the availability of sulfur in the soil, sulfur supplied by precipitation and air contact, leaching losses, and the uptake of sulfur by clover plants were considered in the study.
Long-term study on Tokay vineyard irrigation in Lodi area
by J. J. Kissler , C. E. Houston , W. F. Clayton , L. F. Werenfels , A. N. Kasimatis
Abstract Not Available – First paragraph follows: Vineyard decline—an increasing problem in Tokay vineyards in the Lodi district—results in low yields, large losses due to sunburn damage, small berry size and other low quality factors.
Measuring movements of soil amendments made possible by new technique
by D. R. Nielsen , J. W. Biggar
Abstract Not Available – First paragraph follows: The success or failure, of fertilizers, herbicides, and pesticides applied as soil amendments depends on distribution and concentration of the material in the soil.
New insecticides for lygus bug control in seed production from table beet and carrot
by Elmer C. Carlson
Abstract Not Available – First paragraph follows: Seasonal and area tolerances of lygus bugs—Lygus hesperus Knight—to DDT and toxaphene made it necessary to continue investigations with several new pesticides in 1959 and 1960.
Establishment and distribution of wasp parasite of California red scale
by Paul DeBach , John Landi
Abstract Not Available – First paragraph follows: Another new species of a tiny wasp—Aphytis—parasitic on the California red scale of citrus, was imported to California in 1960.
editorial, news, letters & science briefs
Forest sawflies in California
Cause and control of mosquito hatching
Study of pyridine nucleotides
Research on the aging of wine
Hydraulic roughness of irrigated vegetation
Basic requirements for bargaining strength by farmer cooperative associations
by G. Alvin Carpenter
New species of bedbugs from Africa
by R. L. Usinger