Field Trial - Plums (Sapphire; Ruby Nel), Jakkalsfontein, Malmesbury, South Africa

Date/Datum September 98 - December 98
Product/Produk Yield-Plus
Crop/Oes Type/Tipe Plums
Variety/Varieteit Sapphire; Ruby Nel
Locale/Plek Jakkalsfontein, Malmesbury, RSA
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
Mild, wet winters
Hot, dry summers
Test period weather conditions other than normal/
Toets periode weersomstandighede buitengewoon
The trees were not irrigated the previous season due to water shortage and were initially set back by this.
Cooperator/Samewerker Mr J Smith
Type of trial/Proeftipe  
Experimental design/
Proefnemings ontwerp
Block of 4 ha treated
Treatments/Behandelinge 1. 300 ml/ha 14 days after flowering
2. 300 ml fourteen days later
3. 300 ml fourteen days later
Applications/
Toedienings
Qty/Hoeveelheid Three
Form/Vorm Tractor spray
Counts/Tellings Yield and size compared with previous harvest
Results/Uitslae 20% increase in yield
Significant increase in size throughout
Large grade plums also significantly bigger
Conclusion/Gevolgtrekking Substantial increase in yield and size
Special comments/
Spesiale opmerkings
Mr Smith observed that the plums were firmer with longer shelf life.
Some plums were of such size that could not fit into the normal packaging.
Mr Smith will start his future spray programme earlier, ie at flowering.
Notes/Notas  

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