Iron and zinc foliage sprays: Radioactive tracers being used in basic studies on factors influencing absorption and translocation of micronutrients
A. A. Bedri
Authors AffiliationsA. A. Bedri is Research Assistant in Subtropical Horticulture, University of California, Los Angeles; A. Wallace is Associate Professor of Subtropical Horticulture, University of California, Los Angeles.
Hilgardia 12(3):8-8. DOI:10.3733/ca.v012n03p8. March 1958.
Sprays have been the most effective method—to date—of supplying the micronutrients iron and zinc to many crops. Although considerable research has been done in recent years on the use of metal chelates for soil application of these two nutrients, the use of such materials is recommended only for high-value plantings. Spray application is still indicated for most crops. For this reason basic studies are being conducted on factors influencing the absorption and the subsequent translocation of these two elements.
Also in this issue:Changes in orange marketing: Developing revolution in marketing and distribution of the nation's food products affects fresh and processed oranges
Citrus trees in water cultures: Information derived from studies using nutrient solutions as tools of research is of inestimable value to citrus industry
Effect of nontillage of navels: Relation of some tillage practices to water infiltration, yield, and quality of oranges part of fertilizer experiment
Splitting of Navel oranges: Studies indicate local temperature and humidity more closely related to incidence of injury than is soil moisture content
Albinism in citrus seedlings: Nongenetic absence or deficiency of chlorophyll in seedlings prevented by treating freshly extracted seeds with fungicide
Chlorine absorption: All portions of citrus trees grown in soil cultures absorbed chlorine in test
Red mite on citrus: Timing control treatments important and influenced by climate of growing areas
Grocery store credit service: Combinations of credit with telephone and delivery services are related to the locations, ownership and sizes of stores
Woolly and green apple aphids: Field trials with new materials in orchard near Watsonville indicate same timing of spray treatment controls both pests
Toxicity studies with arsenic in eighty California soils
Arsenic fixation in relation to the sterilization of soils with sodium arsenite
Toxicity studies with sodium chlorate in eighty California soils