Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Relationship of Plant Moisture Status to Irrigation Need in Corn and Soybean Crops.
Author Boye, J. S. ;
CORP Author Illinois Univ., Urbana. Water Resources Center.
Year Published 1972
Report Number WRC-RR-60 ;UILU-WRC-72-0060; DI-14-31-0001-3075; OWRR-B-036-ILL; 02604,; B-036-ILL(10)
Stock Number PB-213 502
Additional Subjects ( Farm crops ; Moisture content) ; ( Soybean plants ; Irrigation) ; ( Corn plants ; Irrigation) ; Photosynthesis ; Plant physiology ; Simulation ; Chloroplasts ; Pressure measurement ; Leaves(Botany) ;
Library Call Number Additional Info Location Last
NTIS  PB-213 502 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 39p
The objective was to develop a practical method of measurement of crop moisture status which could be used in the field and to interpret the measurements thereby obtained in terms of irrigation need. A small inexpensive pressure chamber was developed, tested, and shown to give reasonable accurate values for the moisture status of corn and soybeans. Laboratory simulation studies of corn and soybeans showed that during vegetative development leaf enlargement was more sensitive to drought than photosynthesis and dark respiration. These parameters were correlated with pressure chamber measurements. It was therefore concluded that irrigation needs could be based on the maintenance of leaf enlargement alone. (Author)