California Agriculture, September 1967
Volume 21, Number 9
This mature hen had been debeaked by precision debeaking methods as a chick (seven days old).
Effects of debeaking and cage density on egg production
by E. L. Bramhall , T. M. Little
Abstract Not Available – First paragraph follows: Cannibalism is one of the reactions of hens to the crowding of cage living. Debeaking at 12 to 17 weeks of age has provided a practical control of cannibalism in the past. The results of this trial show that early precision debeaking not only controlled cannibalism but also increased egg production, as compared with later debeaking.
Sulfur-coated urea fertilizer for controlled release nutrition of container grown ornamentals
by Tokuji Furuta , R. H. Sciaroni , J. R. Breece
Nursery experiments have shown that sulfur-coated urea was excellent as a slowly available form of nitrogen for ornamental plants in containers. Best plant growth resulted when the sulfur-coated urea was incorporated in the potting mix and the plants received fertilizer applications during the growing season. Even without additional fertilization, the controlled-release urea was able to supply adequate amounts of nitrogen for several months' growth. Excessively heavy applications resulted in plant injury and death.
Water use of dry-farmed almonds under clean and noncultivation conditions
by David Holmberg , Lukas Werenfels
Test plots for this water-use study were in a dry-farmed almond orchard, part of which was under non-tillage and part under clean cultivation. Soil moisture sampling showed that in years of heavy winter cover crop growth, more moisture was used out of the chopped than out of the cultivated plots. But the almond trees were remarkably able to stretch the available soil moisture supply almost to the end of the growing season.
Effects of irrigation management on chemical composition of soybeans in the San Joaquin Valley
by R. J. Miller , B. H. Beard
Abstract Not Available – First paragraph follows: The recent cutbacks in acreage allotments in the San Joaquin Valley have caused cotton ranchers with interests in oil-processing facilities to recognize the need for a supplemental oil crop, such as soybeans, to allow continued use of the facilities at or near capacity. Projected population increases in many parts of the world also indicate that a protein crop such as soybean could have increasing importance in meeting future food needs.
Seed sprouting in canning tomato fruit
by M. Yamaguchi , G. C. Hanna , J. M. Ogawa , F. D. Howard , B. Weir
Abstract Not Available – First paragraph follows: Sprouting of seeds, a physiological disorder in ripe canning tomatoes, has been observed in fruits harvested from various growing areas of California during the past several years. This disorder is of particular concern in the canning of whole tomatoes because the germinated seeds appear as, foreign materials. Green or pink colored fruits have not been observed to contain sprouted seeds. Fruits from the mechanical harvesting varieties VF 145 and VF 13L and selections from these lines have shown sprouted seeds. With some of the other varieties, reports of occurrence of the seed sprouting have been quite infrequent (table 1).
Bed mulches for strawberries …petroleum …polyethylene …combinations
by Victor Voth , H. J. Bowen , Frank Takatori
Clear polyethylene proved superior in these tests as a mulching material for strawberries in comparisons with colored polyethylene and petroleum mulch.
Effects of artificial pollination on yield of Nonpareil almond trees
by R. W. Thorp , W. Stanger , T. Aldrich
Nonpareil almond trees receiving metered rates of supplemental compatible pollen from a ground blower produced no increase in yield over control trees in tests reported here.