Field Trial - Roses, Hartsvallei, Vaalharts area, South Africa

Date/Datum June 1999
Product/Produk Yield-Plus
Crop/Oes Type/Tipe Roses
Variety/Varieteit  
Locale/Plek Hartsvallei, Vaalharts area, R.S.A.
Rainfall/
Reenval
Winter/
Winter
  Summer/
Somer
Ave. mm pa/
Gem. mm pj
 
Soil quality/
Grond gehalte
Excellent/
Uitstekend
  Good/
Goed
Medium/
Gemiddeld
  Poor/
Arm
 
Normal weather conditions/
Gewone weerstoestande
Hot, arid with spring frost
Test period weather conditions other than normal/
Toets periode weersomstandighede buitengewoon
Abnormal heat with less rainfall than normal
Cooperator/Samewerker J Engelbrecht, A Engelbrecht Jan Kempdorp (School of Agriculture)
Type of trial/Proeftipe Production, small field
Experimental design/
Proefnemings ontwerp
Young plants

75% treated

25% untreated

Treatments/Behandelinge 1. 2% Yield-Plus and normal fertilizer; water at early leaf (2nd week Oct.)
2. 400 ml/ha 2 weeks after 1st application
3. 250 ml every 3 weeks till 1st week June

Total 3

Control - Normal fertilizer and water

Applications/
Toedienings
Qty/Hoeveelheid 11 sprays
Form/Vorm Back pack spray, medium volume
Counts/Tellings Yield, stem length, quality, length of season, shelf life
Results/Uitslae Due to quicker growth more cuts were made more often than control
Longer stems and increased buds were noticed producing more long stem flowers
Bushes continued producing 6 weeks longer than the control
A higher quality flower in excess of 35% more flowers was realised over control
Conclusion/Gevolgtrekking The treated bushes were young but produced like older, more established bushes.
The folaige was greatly improved and greener than the control.
Higher prices were realised on the treated flowers along with higher yield.
Special comments/
Spesiale opmerkings
Comments were made by consumers on the quality and in general the shelf life impressive!
We noted rust problems on the control where the Yield-Plus treated plants showed none.
Notes/Notas We have used this product on tomatoes, peanuts, wheat and now roses and we are impressed.

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