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- Title
THE EFFECT OF SUPERPHOSPHATE APPLICATION, 2,4-DB AND GRAZING ON BROOMRAPE (OROBANCHE MINOR SM.) IN A SUBTERRANEAN CLOVER PASTURE.
- Authors
Southwood, O. R.
- Abstract
Two 5-year trials were conducted in New South Wales on the control of broomrape (<em>Orobanche minor</em> Sm.), a plant parasite of subterranean clover (<em>Trifolium subterraneum</em> L.) and skeleton weed (<em>Chondrilla juncea</em> L.). Applications of superphosphate to two soils of low phosphorus status stimulated clover growth, which caused a reduction in the number of skeleton weed plants and a decrease in the broomrape population. Similar but less effective control was obtained when subterranean clover pasture was sprayed with 2,4-DB for skeleton weed control as soon as the clover seedlings had developed trifoliate leaves. In spring, sheep readily grazed the broomrape stems before flowering, causing death of the plants. Autumn application of superphosphate, coupled with grazing of the pasture by sheep, significantly reduced broomrape density.
- Subjects
SUBTERRANEAN clover; PLANT growth-promoting rhizobacteria; AGRICULTURE; FALL foliage; PLANT-soil relationships
- Publication
Weed Research, 1971, Vol 11, Issue 4, p240
- ISSN
0043-1737
- Publication type
Article
- DOI
10.1111/j.1365-3180.1971.tb01006.x