Published April 1975. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Yield reductions due to competition of weeds with crop plants
can be extremely important. Early weed competition can be as important
in reducing crop yield as weed competition for the entire
season.
The objectives of this study were (1) to determine the weed
control achieved by narrow row-cropping patterns, (2)...
Published June 1960. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
'Tendercrop' and 'OSU 949' green snap beans were grown at
populations varying from 77,000 to 392,000 plants per acre with two
row spacings and six square arrangements ranging from 4 x 4 to 9 x 9
inches. Maximum yield of 10.1 tons per acre (32 percent sieve size
4 and...
Bush beans (Phaseolus vulgaris L.), carrots (Daucus carota L.), and lettuce (Lactuca sativa L.) were grown for 3 years on soils amended with S or lime and N fertilizer. Yields of all crops increased with lime application but response to N varied among crops and years. Lettuce head weight tended...
Field experiments were conducted in 1981 and 1982 to
develop a method for using remotely measured leaf canopy-air
temperature differences (stress-degree-days (SDD)) to
schedule irrigations and to evaluate the effects of
differential irrigation on snap bean cultivars, 'Oregon
1604' and 'Galamor'. Effects on soil water potential
(SWP), leaf water potential...
In the production of vegetable crops, good fertilizer usage is only one of the important management practices, including proper seeding, pest control, adequate irrigation, and timely harvest. Because of the influence of soil type, climatic conditions, and other cultural practices, crop response from fertilizer may not always be predicted accurately....
Published October 1982. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog