Volume 57 Number 4 Article 25
Year 2003 Month 10
Title: Pre-Plant Crop Rotation and Compost Amendments for Improving Establishment of Red Raspberry
Authors: B.L. Black, H.J. Swartz, P. Millner and P. Steiner
Abstract:
Three crop rotation treatments: (1) a sorghum x sudangrass hybrid (Sudex) and rapeseed, (2) a conventional corn-barley rotation, and (3) a corn-barley rotation followed by preplant compost amendment,
were compared for alleviating replant problems on a field with a long history of perennial fruit crops.
A raspberry selection trial was planted in each treatment, and initial raspberry survival and growth over
two seasons was measured to compare the efficacy of these pre-plant treatments.
The initial survival
and growth of raspberry plants in the Sudex-rapeseed treatment was similar to that of the corn-barley
treatment.
However, the corn-barley-compost treatment significantly improved raspberry growth and
survival.
At the conclusion of the experiment, root samples from two raspberry cultivars were assayed
for root-disease associated fungi.
Isolates of fast-growing fungi (Cylindrocarpon, Fusarium, Pythium,
and Rhizoctonia) were found at low frequencies, but there were no significant differences in their oc
currence among pre-plant treatments.
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